Relevant bibliographies by topics / Optical parametric oscillators / Dissertations / Theses
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Dissertations / Theses on the topic 'Optical parametric oscillators'

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Published: 4 June 2021
Last updated: 19 February 2022

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1

Walsh, David A. "Intracavity terahertz optical parametric oscillators." Thesis, University of St Andrews, 2011. http://hdl.handle.net/10023/1713.

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This thesis describes the design and implementation of several novel, nanosecond pulsed, intracavity optical parametric oscillators for the generation of terahertz radiation. The application of the intracavity approach in the context of terahertz optical parametric oscillators has been demonstrated for the first time, and the pump wave energy required was thereby reduced by an order of magnitude. The terahertz wave was tunable from under 1THz up to 3THz with a free running linewidth of ~50GHz and pulse energies up to ~20nJ (pulses were a few nanoseconds in duration). The terahertz beam profile
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2

Cui, Yong. "UV pumped holosteric optical parametric oscillator." Thesis, University of St Andrews, 1993. http://hdl.handle.net/10023/14889.

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The all-solid-state (or "holosteric") optical parametric oscillator has resulted from the recent development of diode-laser-pumped solid-state lasers and from recent advancements in new optically nonlinear materials. As a result, all-solid-state sources of widely tunable (ultraviolet - visible - near infrared) coherent radiation are now possible by using the radiation from diode-laser-pumped solid-state lasers, either directly or after frequency conversion, to pump optical parametric oscillators. Such devices can be made compact, efficient and reliable. The work described in this thesis explor
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3

Lee, Dicky. "Optical parametric oscillators and precision optical frequency measurements." Thesis, Massachusetts Institute of Technology, 1996. http://hdl.handle.net/1721.1/38369.

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4

Ebrahimzadeh, Majid. "Optical parametric oscillators pumped by excimer lasers." Thesis, University of St Andrews, 1990. http://hdl.handle.net/10023/14164.

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This thesis describes the development of a new generation of pulsed optical parametric oscillators (OPO's) based on two new non-linear materials, urea and beta-BaB2O4 (or BBO), and pumped by a new class of laser pump sources, namely, excimer lasers, to provide broadly tunable coherent radiation in new regions of the electromagnetic spectrum, particularly in the ultraviolet and the visible, which have previously been inaccessible. The laser pump source used during this work was a pulsed ultraviolet XeCl excimer laser operating at 308nm. Because of the stringent demands on the pump beam quality
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5

Terry, Jonathan A. C. "An all-solid-state optical parametric oscillator for the infrared." Thesis, University of St Andrews, 1994. http://hdl.handle.net/10023/15032.

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A low threshold, efficient optical parametric oscillator (OPO) based on the material Potassium Titanyl Phosphate (KTP) and pumped by a diode-laser-pumped, Q-switched Nd:YLF laser has been demonstrated and investigated. This all-solid-state device was operated in a non-critical phase match (NCPM) geometry converting the 1 mum pump light to output wavelengths of 1.54 and 3.28 mum, and has potential as an 'eyesafe' laser source with scaling to higher powers. A major contributing factor to the success of this work was the extension of the steady state theory of the singly resonant OPO to include t
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6

Penman, Zoe E. "Femtosecond optical parametric oscillators in the mid-infrared." Thesis, University of St Andrews, 1999. http://hdl.handle.net/10023/14947.

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The work described in this thesis is concerned with the development of self-modelocked Ti:sapphire lasers and femtosecond optical parametric oscillators based on periodically-poled rubidium titanyl arsenate and periodically-poled lithium niobate and operating in the near and mid-infrared. In Chapter 1 the theory of ultrashort pulse generation is explained with regard to the Ti:sapphire laser. The optical properties of Ti:sapphire are discussed along with the principles of laser oscillation and pulse generation. The techniques used to modelock the lasers used in the experimental work, which fol
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7

McGowan, Cathrine. "Femtosecond optical parametric oscillators for the mid-infrared." Thesis, University of St Andrews, 1998. http://hdl.handle.net/10023/14946.

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The research presented in this thesis is concerned with the generation and characterisation of femtosecond pulses in the near and mid-infrared spectral regions. The three optical parametric oscillators which were constructed were synchronously- pumped by a self-modelocked femtosecond Ti:sapphire laser. Noncollinear critical birefringent phasematching was used in an oscillator based on KTiOAsO4, which was tunable from 1.03 to 1.2 mum and 2.51 to 4.1 mum by varying the crystal angle. The mid-infrared pulses were sub-100 fs, and essentially free from frequency chirp. With appropriate dispersion c
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8

O'Donnell, Callum Francis. "Novel femtosecond optical parametric oscillators in the infrared." Doctoral thesis, Universitat Politècnica de Catalunya, 2019. http://hdl.handle.net/10803/666941.

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High-repetition-rate femtosecond laser sources are essential laboratory tools for spectroscopy, microscopy, amongst other applications. With the relative length of one femtosecond to one second being similar to the length of 1 second compared to the age of the universe, such lasers enable scientists to probe physical processes at unimaginably short timescales. Furthermore, the high peak powers can excite strong nonlinear response in delicate material samples without delivering potentially damaging levels of energy. The infrared (IR) spectral region across 1–12 μmis rich in molecular absorpti
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9

Tillman, Karl Arthur. "Novel broadband high efficiency femtosecond optical parametric oscillators." Thesis, Heriot-Watt University, 2004. http://hdl.handle.net/10399/250.

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10

Robertson, Gordon. "Optical parametric oscillators : a comparison of new materials." Thesis, University of St Andrews, 1993. http://hdl.handle.net/10023/6487.

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A study of new materials for optical parametric oscillators (OPOs) was carried out using an XeCI excimer laser as a pump source. The three non-linear optical materials studied were lithium borate (LBO), deuterated L-arginine phosphate (d-LAP) and β-barium borate (BBO). These optical parametric oscillators were characterised for oscillation thresholds, tuning ranges, linewidths and efficiencies. A novel device in LBO was demonstrated, using the non-critically phase matched type II geometry. The device displayed a low oscillation threshold, which was independent of pump beam area thus made it at
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11

Hellström, Jonas. "Nanosecond optical parametric oscillators and amplifiers based on periodically poled KTiOPO4." Doctoral thesis, KTH, Physics, 2001. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-3269.

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<p>Optical parametric oscillators (OPOs) and optical parametricamplifiers (OPAs) constitute a class of optical frequencyconverting devices that have many possible applications, e.g.in range finding, molecular spectroscopy and medicine. They canconvert the frequency of the incident pump field with highefficiency, and generate two waves at new frequencies that willbe continuously tuneable over a wide spectral range. Virtuallyany wavelengths within the transparency region of the nonlinearmaterial can be generated if the material can bequasi-phasematched (QPM). In addition, QPM gives thepossibilit
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12

Feaver, Ryan K. "Cascaded Orientation-Patterned Gallium Arsenide Optical Parametric Oscillator for Improved Longwave Infrared Conversion Efficiency." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1493206535730182.

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13

Henriksson, Markus. "Nanosecond tandem optical parametric oscillators for mid-infrared generation." Licentiate thesis, KTH, Physics, 2007. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4261.

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<p>This thesis discusses a new scheme for generating radiation in the mid infrared spectral region, especially the 3.5-5 µm range. The scheme uses established Nd<sup>3+</sup>-lasers at 1.06 µm and down conversion in nonlinear optical crystals. The down conversion is made by two optical parametric oscillators (OPO) in series. The second OPO is a classical OPO using a zink germanium phosphide (ZGP) crystal. ZGP is the best nonlinear material available for the 4-8 µm spectral range, but it is absorbing below 2 µm. The new development presented in this thesis is the OPO used to convert the 1.06 µm
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14

Hewitt, Sarah Elaine. "Dynamics and stability of periodic spatial patterns in the optical parametric oscillator /." Thesis, Connect to this title online; UW restricted, 2004. http://hdl.handle.net/1773/6777.

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15

Lee, Chris J., and n/a. "Tuning mechanisms for quasi-phase-matched optical parametric oscillators." University of Otago. Department of Physics, 2005. http://adt.otago.ac.nz./public/adt-NZDU20070220.145817.

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Several pulsed optical oscillators (OPOs) based on periodically poled lithium niobate (PPLN) and pumped by single longitudinal mode Ti:sapphire lasers have been developed. These OPOs provide access to important spectroscopic regions in the 1 - 5.5 [mu]m region and can be rapidly turned by varying the pump wavelength. Previously many of the OPOs developed to take advantage of PPLN relied on a combination of period selection and temperature tuning and as a result were slow and cumbersome to tune. This problem my be avoided by using tunable pump sources or acoustically induced strain waves. Sev
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16

Liljestrand, Charlotte. "Spatial mode engineering in mid-infrared optical parametric oscillators." Thesis, KTH, Laserfysik, 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-42705.

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The purpose of this thesis was to investigate the possibilities of enhancing the temporal and spatial coherence of parametric devices in the mid-infrared spectrum by exploiting inherent coherence selection of Bessel beams. Several optical parametric oscillators (OPO) were constructed and characterized for various types of resonators and pump lasers. In the first part of this work an OPO was constructed out of a periodically poled KTP (PPKTP) crystal within a stable resonator. It was pumped by a Q-switched Nd:YAG laser in transversal and longitudinal single mode operation. The OPO was pumped at
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17

Badarla, Venkata Ramaiah. "Ultrafast optical parametric oscillators : novel systems, techniques, and concepts." Doctoral thesis, Universitat Politècnica de Catalunya, 2014. http://hdl.handle.net/10803/283572.

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In this thesis, we have demonstrated various ultrafast optical parametric oscillators (OPOs) based on different nonlinear media. The thesis consists of OPO systems, novel techniques, designs, and concepts that has facilitated the wavelength accessibility from 1 µm in the near-infrared region to as far as 8 µm in the mid-infrared region. We developed a fs OPO based on BiB3O6 (BIBO) directly pumped the Kerr-lens mode-locked (KLM) Ti:sapphire laser. This system could provide broad and rapid tuning from 1420-1560 nm just by changing the cavity length. Also, by exploiting the unique optical proper
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18

Henriksson, Markus. "Nanosecond tandem optical parametric oscillators for mid-infrared generation /." Stockholm : Laser physics, Royal Institute of Technology, 2006. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4261.

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19

Thilmann, Nicky. "Highly efficient optical parametric oscillators in the mid-IR." Doctoral thesis, KTH, Laserfysik, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-156714.

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This thesis shows how sources of coherent radiation in the mid-infrared (mid-IR) region can be enhanced. To achieve this, optical parametric oscillators (OPOs) employing improved novel materials, new optical elements, and novel cavity designs have been implemented. Moreover, important measurements for the development of ultrashort-pulsed lasers were conducted. In turn, such lasers are suitable pump sources for the nonlinear conversion to the mid-IR. The mid-infrared spectral region is of interest for many applications in the areas of medicine, sensing, climate monitoring, and ranging. Here the
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20

Kovalchuk, Evgeny. "Optical parametric oscillators for precision IR spectroscopy and metrology." Doctoral thesis, Humboldt-Universität zu Berlin, Mathematisch-Naturwissenschaftliche Fakultät I, 2008. http://dx.doi.org/10.18452/15759.

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In der vorliegenden Doktorarbeit wird ein Dauerstrich Optisch Parametrischer Oszillator (cw OPO) vorgestellt, der speziell für die hochauflösende Dopplerfreie Molekülspektroskopie und Metrologie entwickelt wurde. Der kontrollierte Zugang zu jeder beliebigen Wellenlänge im breiten Emissionsspektrum von OPOs wie auch das präzise Abstimmen seiner Ausgangsfrequenz über zu untersuchende molekulare und atomare Übergänge stellten lange Zeit Probleme dar, deren Lösung die Grundzielsetzung dieser Arbeit war. Das im Laufe dieser Arbeit entwickelte System hat diese Ziele vollständig erreicht, was durch v
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21

Cuozzo, Domenico. "Theory and simulations of singly resonant optical parametric oscillators." Thesis, University of Strathclyde, 2014. http://oleg.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=24441.

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Optical parametric oscillators have been known and used for a long time as efficient sources of non-classical states of light both below threshold of oscillation, where they generate squeezed vacuum states and bi-partite entangled states, and above threshold of oscillation, where they generate intensity correlated twin beams. The singly-resonant cavity, where only one of the three field involved in the parametric amplification process is resonated (signal), is in principle a simpler configuration to realize experimentally but, to the best of our knowledge, theoretical investigations of non-cla
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22

Lamour, Tobias Paul. "High pulse energy near-infrared ultrafast optical parametric oscillators." Thesis, Heriot-Watt University, 2011. http://hdl.handle.net/10399/2509.

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A source-demand in the near- and mid-IR wavelength spectrum exists for various applications such as waveguide inscription, multiphoton imaging, and nonlinear spectroscopy. All of the applications seek for higher repetitions rates for faster processing speed, better signal to noise ratios or to improve the results for applications like laser waveguide inscription. This is in contrast to the high pulse energies, required to drive the nonlinear processes involved with these applications. Available systems are either based on low-energy, high-repetition-rate optical parametric oscillators or high-
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23

Rae, Cameron Francis. "Novel configurations for pulsed optical parametric oscillators and their pump sources." Thesis, University of St Andrews, 1998. http://hdl.handle.net/10023/14948.

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The development of all-solid-state, diode-laser pumped neodymium (Nd) lasers and optical parametric oscillators (OPOs) is described, which realise practical sources of coherent radiation with a high degree of frequency agility, are efficient, reliable and potentially compact. A comparison of various neodymium doped host materials reveals yttrium lithium fluoride (YLF) to be an appropriate replacement for the more widely known host yttrium aluminium garnet (YAG) in diode-laser pumped devices. The development of an end-pumped Nd:YLF laser that utilises a 12-mJ, 60W, quasi-CW diode-laser bar is i
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24

Henriksson, Markus. "Tandem optical parametric oscillators using volume Bragg grating spectral control." Doctoral thesis, KTH, Laserfysik, 2010. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-12864.

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This thesis describes research on near degenerate quasi phase-matched opticalparametric oscillators (OPO) where volume Bragg gratings (VBG) are used toproduce narrow oscillation bandwidth. These OPOs are then used to pump a secondOPO to generate mid-infrared radiation. The atmospheric transmission windows in the 3.5 to 5 μm wavelength region areused for seekers on infrared homing missiles. These missiles are available to guerrillaand terrorist groups and have been used in a number of attacks on military and civilianaircraft. Laser sources at the same wavelengths are an important component inco
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25

Henderson, Angus. "Studies of optical parametric oscillators for the ultraviolet and visible spectral regions." Thesis, University of St Andrews, 1993. http://hdl.handle.net/10023/14951.

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The work described herein concerns the characterisation and development of optical parametric oscillators (OPOs) tunable in the ultraviolet, visible and near infrared regions. These devices were pumped by the 308nm output from line-narrowed Xenon Chloride excimer lasers of pulse energy up to 150mJ. The behaviour of Type 2 phase-matched Urea, and Type 1 phase-matched Barium Borate OPOs in terms of oscillation threshold and conversion efficiency, has been explored. The detrimental effects of pump beam walkoff on the threshold of the critically phase-matched Barium Borate OPO have been quantified
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26

Colville, Finlay G. "An analysis of the performance characteristics of continuous-wave optical parametric oscillators." Thesis, University of St Andrews, 1995. http://hdl.handle.net/10023/14887.

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This thesis gives a description of studies relating to the development of continuous-wave (cw) optical parametric oscillators (OPOs) and their application to schemes that require high-precision, narrow-linewidth, and frequency-tunable radiation. There are three separate aims to the work presented within this thesis. First, the requirements on pump sources, nonlinear materials, OPO cavity resonances and phase-matching geometries are analysed with a view to operating cw OPOs with stability above threshold. Second, the results of four distinct experiments are outlined, compared to theory, and dis
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27

Malik, Rohit. "Experimental investigation of high-power continuous-wave fiber optical parametric amplifiers and oscillators." Thesis, Swansea University, 2010. https://cronfa.swan.ac.uk/Record/cronfa42491.

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Fiber optical parametric amplifiers (OPAs) are based on a highly-efficient four-wave mixing process. Their capability to give very high gain and large bandwidths have made them an attractive candidate for providing higher bandwidths for future telecommunication systems, such as wavelength-division multiplexed (WDM) photonics networks. In dynamic photonic networks a where number of channels are dropped and/or added all the time, the OPA gain for the other channels is affected. In this thesis we employed a well-known gain control technique, all-optical gain clamping (AOGC), and reduced the gain
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28

Zhou, Yue, and 周月. "Fiber optical parametric generation of widely tunable source: continuous-wave to sub-pricosecondregime." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2012. http://hub.hku.hk/bib/B49617722.

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Optical source generation has attracted significant attention recently, especially in fiber optical communications. Today there is a growing a demand for optical source generation beyond conventional telecommunication wavelength bands. However, high quality and versatile optical source is generally not available over those wavelength bands due to the lack of efficient gain medium. Thanks to fiber optical parametric amplifier (FOPA), which is based on the third order nonlinear susceptibility of optical fibers, offers ultrafast response, wide-gain bandwidth, high gain and large frequency detune
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29

Kane, Daniel John. "Intracavity optical parametric oscillators based on orientation-patterned gallium arsenide." Thesis, University of Strathclyde, 2016. http://digitool.lib.strath.ac.uk:80/R/?func=dbin-jump-full&object_id=27499.

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30

French, Steven. "High-power, high-repetition-rate picosecond optical parametric oscillators for the visible to mid-infrared." Thesis, University of St Andrews, 1997. http://hdl.handle.net/10023/14890.

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This thesis describes the design, configuration and operation of picosecond optical parametric oscillators (OPOs) tunable from the visible to mid infrared. These systems were based on the materials LiB3O5 (LBO) and KTiOAsO4 (KTA), and were pumped by a self-mode-locked Ti:sapphire laser at a repetition rate of 81 MHz. The initial design of the picosecond parametric oscillator was based on a 16 mm long crystal of LBO. This system produces transform-limited signal pulses with durations of -720 fs. Total average output powers of up to 90 mW over a signal (idler) tuning range of 1.374-1.530 mum (1.
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31

Reid, Derryck T. "Novel nonlinear techniques for femtosecond pulse generation in the visible and near-infrared." Thesis, University of St Andrews, 1995. http://hdl.handle.net/10023/14885.

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The work presented in this thesis describes the design, configuration and operation of femtosecond optical parametric oscillators based on the materials KTiOPO4 (KTP) and RbTiOAsO4 (RTA) and pumped by a self- modelocked Ti:sapphire laser. The alignment of the pump laser is detailed and thermal effects in the Ti:sapphire rod are examined in the context of a general technique which optimises modelocked performance at any pump power. A KTP-based femtosecond parametric oscillator is described which produces 400-fs-duration signal pulses at an average output power of 150 mW when operated in the abs
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32

Tang, Yan. "Applications of nonlinear optics to the development of all-solid-state sources of tunable light." Thesis, University of St Andrews, 1997. http://hdl.handle.net/10023/14949.

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This thesis describes the development of singly-resonant optical parametric oscillators (OPOs) based on the nonlinear material KTP (potassium titanyl phosphate), and used to provide tunable light in the infrared, with low oscillation threshold and high efficiency. Further, the generation of tunable red light by the frequency mixing of the signal wave from the OPO with the pump wave in a non-critical temperature phase-matched lithium triborate crystal (LBO) is reported. We believe this is the first demonstration of such an application of LBO. Two diode-pumped solid-state lasers were used as the
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33

Jacobsson, Björn. "Spectral control of lasers and optical parametric oscillators with volume Bragg gratings." Doctoral thesis, KTH, Laserfysik, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4691.

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I den här avhandlingen visas hur lasrar och optiska parametriska oscillatorer (OPO:er) kan styras spektralt med hjälp av volymbraggitter. Volymbraggitter utgörs av ett periodiskt varierande brytningsindex som skrivits i ett fototermorefraktivt glas. Gittret reflekterar därmed en specifik våglängd som bestäms av perioden hos modulationen, och kan tillverkas med smal bandbredd och hög reflektans beroende på modulationens längd och styrka. En teoretisk modell har utvecklats för reflektiva volymbraggitters egenskaper om den infallande strålen har en större vinkelspridning än gittrets vinkeltoleran
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34

Sinclair, Scott. "Pattern formation and control of spatial structures in optical parametric oscillators." Thesis, University of Strathclyde, 2002. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.249142.

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35

Lang, Tino [Verfasser]. "Ultrashort laser pulses from optical parametric amplifiers and oscillators / Tino Lang." Hannover : Technische Informationsbibliothek und Universitätsbibliothek Hannover (TIB), 2014. http://d-nb.info/106300280X/34.

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36

Gibson, Graham Martin. "Continuously frequency-tunable CW optical parametric oscillators and their application to spectroscopy." Thesis, University of St Andrews, 1999. http://hdl.handle.net/10023/14950.

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This thesis describes the development and applications of single-frequency, continuously tunable, continuous-wave (cw), optical parametric oscillators (OPOs). Two doubly-resonant OPOs (DROs) are presented, one providing tunable light around 1?m, the other specifically designed as a spectroscopic source for methane near 1649nm. Once stabilised, the frequency-selective nature of the DRO ensures operation on a single mode-pair without the need for additional intracavity frequency-selective components. Both DROs are smoothly tunable by smoothly tuning the pump laser. The 1mum DRO is based on a bul
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Hall, Gavin John. "Non-linear frequency conversion of diode-pumped, all-solid-state lasers." Thesis, University of Strathclyde, 1998. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.367032.

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38

Samanta, Goutam Kumar. "High-power, continuous-wave optical parametric oscillators from visible to near-infrared." Doctoral thesis, Universitat Politècnica de Catalunya, 2009. http://hdl.handle.net/10803/29963.

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This thesis presents the development of a new class of high-power, continuous-wave (cw) optical parametric oscillators (OPOs) with extended tunability from visible to near-infrared (near-IR). While lasers have been in use for nearly 50 years, it is still difficult to develop laser systems that can cover many regions of the optical spectrum, from ultraviolet (UV) and visible to the near and mid-infrared wavelength range, with potential applications in the fields such as spectroscopy, remote sensing, trace gas detection, and many more. Development of cw OPOs in singly-resonant oscillator (SRO
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39

Zhang, Xinping. "High-repetition-rate femtosecond optical parametric oscillators based on KTP and PPLN." [S.l.] : [s.n.], 2002. http://archiv.ub.uni-marburg.de/diss/z2002/0388.

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40

Jacobsson, Björn. "Spectral control of lasers and optical parametric oscillators with volume Bragg gratings /." Stockholm : Tillämpad fysik Applied Physics, 2008. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-4691.

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41

Stothard, David James Mark. "Continuous-wave, singly-resonant optical parametric oscillators pumped internal to Nd:YVO4 lasers." Thesis, University of St Andrews, 2002. http://hdl.handle.net/10023/15579.

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The advent of new quasi phase matched materials and high spectral/spatial quality pump sources has led to a renaissance in the development of continuous-wave optical parametric oscillators for the coherent generation of broadly tunable light in the mid infrared spectral region. This thesis describes a novel technique which overcomes the threshold constraints of the singly resonant oscillator (SRO) and stability constraints of the doubly resonant oscillator (DRO) traditionally associated with these devices by placing a singly resonant optical parametric oscillator in the high circulating field
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42

Watson, Malcolm A. "Agile tuning and long-wavelength tuning of synchronously pumped optical parametric oscillators." Thesis, University of Southampton, 2003. https://eprints.soton.ac.uk/15470/.

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This thesis reports investigations of several configurations of high pump power, cw-mode-locked synchronously pumped optical parametric oscillator (SPOPO). The focus is on singly resonant, picosecond-domain systems, including: (1) a SPOPO based on periodically poled lithium niobate (PPLN), equipped with a diffraction grating to tune within the gain bandwidth; (2) a PPLN SPOPO designed to operate at long idler wavelengths, where the idler experiences strong attenuation; (3) a SPOPO based on cadmium selenide (CdSe), pumped in tandem by a 1-μm-pumped PPLN SPOPO. The primary pump source used is a
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43

Kemlin, Vincent. "Parametric infrared generation : from crystals to devices." Thesis, Grenoble, 2013. http://www.theses.fr/2013GRENT114.

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Ce manuscrit porte sur la génération de lumière infrarouge paramétrique dans la gamme de longueurs d'onde 1-12 microns, et qui reste à ce jour un défi à l'interface entre les disciplines de l'optique non-linéaire et des sciences des matériaux. Historiquement, c'est la stratégie de l'accord de phase par biréfringence (APB) dans les matériaux anisotropes qui s’est avérée la plus efficace. Mais depuis les années 1990, le succès du quasi-accord de phase (QAP) a permis l’obtention rendements de conversion plus élevés tout en ouvrant de nombreuses possibilités d'accordabilité en longueur d'onde du r
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Kienle, Florian. "Advanced high-power optical parametric oscillators synchronously pumped by ultrafast fibre-based sources." Thesis, University of Southampton, 2012. https://eprints.soton.ac.uk/210235/.

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This thesis is concerned with investigating the generation of ultra short, tunable pulses at high average power and / or high pulse energy using synchronously pumped optical parametric oscillators (OPO) and appropriate power-scalable fibre-amplifier pump sources. Two types of pump sources with average powers up to ≈ 100W are considered: (1) a picosecond, allfiberised, high-power, variable-repetition-rate, Yb:fibre-amplified, gain-switched laser diode system and (2) a femtosecond, high-power, chirped-pulse amplification Yb:fibre laser system incorporating a pulse shaper module. Such OPO systems
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Chaitanya, Kumar Suddapalli. "High-power, fiber-laser-pumped optical parametric oscillators from the visible to mid-infrared." Doctoral thesis, Universitat Politècnica de Catalunya, 2012. http://hdl.handle.net/10803/83528.

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High-power, continuous-wave (cw), mid-infrared (mid-IR) laser sources are of interest for variety of applications such as trace gas detection and remote sensing, which require broad spectral coverage to address the most prominent absorption features of a wide range of molecular species particularly in the mid-IR fingerprint region. On the other hand, surgical applications require high energy sources with unique pulse structure at specific wavelength in the mid-IR ranging from 6-6.5 m. Optical parametric oscillators (OPOs) offer potential sources for all the above applications. The outp
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Lecomte, Steve. "Diode-pumped solid-state lasers and optical parametric oscillators with gigahertz pulse repetition rates /." [S.l.] : [s.n.], 2005. http://e-collection.ethbib.ethz.ch/show?type=diss&nr=15900.

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Wan, Chenchen. "Low Noise Frequency Comb Sources Based on Synchronously Pumped Doubly Resonant Optical Parametric Oscillators." University of Dayton / OhioLINK, 2017. http://rave.ohiolink.edu/etdc/view?acc_num=dayton1493915721069409.

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Lindsay, Ian D. "High spatial and spectral quality diode-laser-based pump sources for solid-state lasers and optical parametric oscillators." Thesis, University of St Andrews, 1999. http://hdl.handle.net/10023/15030.

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In this thesis the use of high spatial- and spectral-quality diode-laser pump sources for solid-state lasers and continuous-wave optical parametric oscillators (cw OPOs) is investigated. While diode lasers are potentially attractive, compact, low-cost pump sources for solid-state lasers and cw OPOs, the difficulty in obtaining moderate output powers, while retaining high spatial beam quality and spectral purity, often limits the potential of such lasers in these applications. Techniques for obtaining high-power, high spatial- and spectral-quality output from diode lasers are reviewed and the d
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Devi, Kavita. "Continuous-wave optical parametric oscillators and frequency conversion sources from the ultraviolet to the mid-infrared." Doctoral thesis, Universitat Politècnica de Catalunya, 2013. http://hdl.handle.net/10803/130392.

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High-power, continuous-wave (cw) optical parametric oscillators (OPOs), from the ultraviolet (UV) and visible to the near- and mid-infrared (IR) wavelength range, are of interest for a variety of applications such as spectroscopy, trace-gas detection and remote sensing. As such, it is desired to investigate OPOs and different frequency conversion techniques, to cover the spectral regions that are inaccessible to lasers, and that too in a compact and low-cost design. This thesis presents the development of high-power cw OPOs, and frequency conversion sources, spanning the UV to mid-IR spectra
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Moutzouris, Konstantinos. "Nonlinear frequency conversion in isotropic semiconductor waveguides." Thesis, University of St Andrews, 2003. http://hdl.handle.net/10023/13117.

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This thesis describes an experimental investigation of optical frequency conversion in isotropic semiconductor waveguides by use of several phase-matching approaches. Efficient, type I second harmonic generation of femtosecond pulses is reported in birefringently-phase-matched GaAs/Alox waveguides pumped at 2.01 μm. Practical second harmonic average powers of up to ~ 650 μW are obtained, for an average launched pump power of ~ 5 mW. This corresponds to a waveguide conversion efficiency of ~ 20 % and a normalized conversion efficiency of greater than 1000 % W−1cm−2. Pump depletion of more than
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