Relevant bibliographies by topics / Quantum electro-optic control

Academic literature on the topic 'Quantum electro-optic control'

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Published: 4 June 2021
Last updated: 28 January 2023

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Journal articles on the topic "Quantum electro-optic control"

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Luo, Kai-Hong, Sebastian Brauner, Christof Eigner, Polina R. Sharapova, Raimund Ricken, Torsten Meier, Harald Herrmann, and Christine Silberhorn. "Nonlinear integrated quantum electro-optic circuits." Science Advances 5, no. 1 (January 2019): eaat1451. http://dx.doi.org/10.1126/sciadv.aat1451.

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Future quantum computation and networks require scalable monolithic circuits, which incorporate various advanced functionalities on a single physical substrate. Although substantial progress for various applications has already been demonstrated on different platforms, the range of diversified manipulation of photonic states on demand on a single chip has remained limited, especially dynamic time management. Here, we demonstrate an electro-optic device, including photon pair generation, propagation, electro-optical path routing, as well as a voltage-controllable time delay of up to ~12 ps on a single Ti:LiNbO3waveguide chip. As an example, we demonstrate Hong-Ou-Mandel interference with a visibility of more than 93 ± 1.8%. Our chip not only enables the deliberate manipulation of photonic states by rotating the polarization but also provides precise time control. Our experiment reveals that we have full flexible control over single-qubit operations by harnessing the complete potential of fast on-chip electro-optic modulation.
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Carlson, David R., Daniel D. Hickstein, Wei Zhang, Andrew J. Metcalf, Franklyn Quinlan, Scott A. Diddams, and Scott B. Papp. "Ultrafast electro-optic light with subcycle control." Science 361, no. 6409 (September 27, 2018): 1358–63. http://dx.doi.org/10.1126/science.aat6451.

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Light sources that are ultrafast and ultrastable enable applications like timing with subfemtosecond precision and control of quantum and classical systems. Mode-locked lasers have often given access to this regime, by using their high pulse energies. We demonstrate an adaptable method for ultrastable control of low-energy femtosecond pulses based on common electro-optic modulation of a continuous-wave laser light source. We show that we can obtain 100-picojoule pulse trains at rates up to 30 gigahertz and demonstrate sub–optical cycle timing precision and useful output spectra spanning the near infrared. Our source enters the few-cycle ultrafast regime without mode locking, and its high speed provides access to nonlinear measurements and rapid transients.
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Rego, L. G. C., S. G. Abuabara, and V. S. Batista. "Coherent optical control of electronic excitations in functionalized semiconductor nanostructures." Quantum Information and Computation 5, no. 4&5 (July 2005): 318–34. http://dx.doi.org/10.26421/qic5.45-4.

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The feasibility of creating and manipulating coherent quantum states on surfaces of functionalized semiconductor nanostructures is computationally investigated. Quantum dynamics simulations of electron-hole transfer between catechol molecules adsorbed on TiO_2 -anatase nanostructures under cryogenic and vacuum conditions indicate that laser induced coherent excitations can be prepared and manipulated to exhibit controllable spatial Rabi oscillations. The presented computational methods and results are particularly relevant to explore the basic model components of quantum-information electro-optic devices based on inexpensive and readily available semiconductor materials.
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Imany, Poolad, Navin B. Lingaraju, Mohammed S. Alshaykh, Daniel E. Leaird, and Andrew M. Weiner. "Probing quantum walks through coherent control of high-dimensionally entangled photons." Science Advances 6, no. 29 (July 2020): eaba8066. http://dx.doi.org/10.1126/sciadv.aba8066.

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Control over the duration of a quantum walk is critical to unlocking its full potential for quantum search and the simulation of many-body physics. Here we report quantum walks of biphoton frequency combs where the duration of the walk, or circuit depth, is tunable over a continuous range without any change to the physical footprint of the system—a feature absent from previous photonic implementations. In our platform, entangled photon pairs hop between discrete frequency modes with the coupling between these modes mediated by electro-optic modulation of the waveguide refractive index. Through control of the phase across different modes, we demonstrate a rich variety of behavior: from walks exhibiting enhanced ballistic transport or strong energy confinement, to subspaces featuring scattering centers or local traps. We also explore the role of entanglement dimensionality in the creation of energy bound states, which illustrates the potential for these walks to quantify high-dimensional entanglement.
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Hui, Hunag Chun. "Study of Quantum Communication System with Coherent Light." Applied Mechanics and Materials 145 (December 2011): 104–8. http://dx.doi.org/10.4028/www.scientific.net/amm.145.104.

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In this paper， we introduced a system of coherent optical detection with homodyne， which implementing coherent optical communication，our own design based on the principle of coherent optical communication. IN the system, PCI6111E was useed as a data acquisition(DAQ) module. Alice and Bob’s control procedure by their computers under the LabVIEW. The synchronous detection and DAQ were carried out on the system. The signals were processed, displayed and measured. The Experimental results show that by light-synchronization and LabVIEW procedure control, each function module work together in cooperation, include Alice’s acousto-optic modulator and electro-optical modulator, Bob’s data acquisition and phase adjustment by PZT. The coherent optical information could be transitted by Alice and real-time demodulated by Bob.
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Chen, Wen-Fen, Zheng-Jun Wei, Li Guo, Li-Yan Hou, Geng Wang, Jin-Dong Wang, Zhi-Ming Zhang, Jian-Ping Guo, and Song-Hao Liu. "An autobias control system for the electro—optic modulator used in a quantum key distribution system." Chinese Physics B 23, no. 8 (July 31, 2014): 080304. http://dx.doi.org/10.1088/1674-1056/23/8/080304.

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Guha Majumdar, Mrittunjoy, and C. M. Chandrashekar. "Polarization-path-frequency entanglement using interferometry and frequency shifters." Journal of Physics B: Atomic, Molecular and Optical Physics 55, no. 4 (February 16, 2022): 045501. http://dx.doi.org/10.1088/1361-6455/ac5261.

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Abstract Higher dimensional Hilbert space along with ability to control multiple degrees of freedom of photon and entangle them has enabled new quantum protocols for various quantum information processing applications. Here, we propose a scheme to generate and control polarization-path-frequency entanglement using the operative elements required to implement a polarization-controlled quantum walk in the path (position) space and frequency domain. Hyperentangled states manifests in the controlled dynamics using an interferometric setup where half-wave plates, beam-splitters and frequency shifters such as those based on the electro-optic effect are used to manipulate the polarization, path and frequency degrees of freedom respectively. The emphasis is on utilizing the polarization to influence the movement to a specific value in the frequency and position space. Negativity between the subspaces is calculated to demonstrate the controllability of the entanglement between the three degrees of freedom and the effect of noise on the entanglement is modelled using the depolarizing channel. Progress reported with experimental demonstration of realization of quantum walk using quantum states of light makes quantum walks a practical approach to generate hyperentangled states.
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Yue, Jian, Anqi Cui, Fei Wang, Lei Han, Jinguo Dai, Xiangyi Sun, Hang Lin, Chunxue Wang, Changming Chen, and Daming Zhang. "Design of Monolithic 2D Optical Phased Arrays Heterogeneously Integrated with On-Chip Laser Arrays Based on SOI Photonic Platform." Micromachines 13, no. 12 (November 30, 2022): 2117. http://dx.doi.org/10.3390/mi13122117.

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In this work, heterogeneous integration of both two-dimensional (2D) optical phased arrays (OPAs) and on-chip laser arrays based on a silicon photonic platform is proposed. The tunable multi-quantum-well (MQW) laser arrays, active switching/shifting arrays, and grating antenna arrays are used in the OPA module to realize 2D spatial beam scanning. The 2D OPA chip is composed of four main parts: (1) tunable MQW laser array emitting light signals in the range of 1480–1600 nm wavelengths; (2) electro-optic (EO) switch array for selecting the desired signal light from the on-chip laser array; (3) EO phase-shifter array for holding a fixed phase difference for the uniform amplitude of specific optical signal; and (4) Bragg waveguide grating antenna array for controlling beamforming. By optimizing the overall performances of the 2D OPA chip, a large steering range of 88.4° × 18° is realized by tuning both the phase and the wavelength for each antenna. In contrast to the traditional thermo-optic LIDAR chip with an external light source, the overall footprint of the 2D OPA chip can be limited to 8 mm × 3 mm, and the modulation rate can be 2.5 ps. The ultra-compact 2D OPA assembling with on-chip tunable laser arrays using hybrid integration could result in the application of a high-density, high-speed, and high-precision lidar system in the future.
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Zhu, Di, Changchen Chen, Mengjie Yu, Linbo Shao, Yaowen Hu, C. J. Xin, Matthew Yeh, et al. "Spectral control of nonclassical light pulses using an integrated thin-film lithium niobate modulator." Light: Science & Applications 11, no. 1 (November 17, 2022). http://dx.doi.org/10.1038/s41377-022-01029-7.

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AbstractManipulating the frequency and bandwidth of nonclassical light is essential for implementing frequency-encoded/multiplexed quantum computation, communication, and networking protocols, and for bridging spectral mismatch among various quantum systems. However, quantum spectral control requires a strong nonlinearity mediated by light, microwave, or acoustics, which is challenging to realize with high efficiency, low noise, and on an integrated chip. Here, we demonstrate both frequency shifting and bandwidth compression of heralded single-photon pulses using an integrated thin-film lithium niobate (TFLN) phase modulator. We achieve record-high electro-optic frequency shearing of telecom single photons over terahertz range (±641 GHz or ±5.2 nm), enabling high visibility quantum interference between frequency-nondegenerate photon pairs. We further operate the modulator as a time lens and demonstrate over eighteen-fold (6.55 nm to 0.35 nm) bandwidth compression of single photons. Our results showcase the viability and promise of on-chip quantum spectral control for scalable photonic quantum information processing.
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Benea-Chelmus, Ileana-Cristina, Maryna L. Meretska, Delwin L. Elder, Michele Tamagnone, Larry R. Dalton, and Federico Capasso. "Electro-optic spatial light modulator from an engineered organic layer." Nature Communications 12, no. 1 (October 11, 2021). http://dx.doi.org/10.1038/s41467-021-26035-y.

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AbstractTailored nanostructures provide at-will control over the properties of light, with applications in imaging and spectroscopy. Active photonics can further open new avenues in remote monitoring, virtual or augmented reality and time-resolved sensing. Nanomaterials with χ(2) nonlinearities achieve highest switching speeds. Current demonstrations typically require a trade-off: they either rely on traditional χ(2) materials, which have low non-linearities, or on application-specific quantum well heterostructures that exhibit a high χ(2) in a narrow band. Here, we show that a thin film of organic electro-optic molecules JRD1 in polymethylmethacrylate combines desired merits for active free-space optics: broadband record-high nonlinearity (10-100 times higher than traditional materials at wavelengths 1100-1600 nm), a custom-tailored nonlinear tensor at the nanoscale, and engineered optical and electronic responses. We demonstrate a tuning of optical resonances by Δλ = 11 nm at DC voltages and a modulation of the transmitted intensity up to 40%, at speeds up to 50 MHz. We realize 2 × 2 single- and 1 × 5 multi-color spatial light modulators. We demonstrate their potential for imaging and remote sensing. The compatibility with compact laser diodes, the achieved millimeter size and the low power consumption are further key features for laser ranging or reconfigurable optics.
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Dissertations / Theses on the topic "Quantum electro-optic control"

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Buchler, Benjamin Caird. "Electro-optic control of quantum measurements." View thesis entry in Australian Digital Theses Program, 2001. http://thesis.anu.edu.au/public/adt-ANU20020527.131758/index.html.

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Buchler, Benjamin Caird, and ben buchler@anu edu au. "Electro-optic control of quantum measurements." The Australian National University. Faculty of Science, 2002. http://thesis.anu.edu.au./public/adt-ANU20020527.131758.

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The performance of optical measurement systems is ultimately limited by the quantum nature of light. In this thesis, two techniques for circumventing the standard quantum measurement limits are modelled and tested experimentally. These techniques are electro-optic control and the use of squeezed light. An optical parametric amplifier is used to generate squeezing at 1064nm. The parametric amplifier is pumped by the output of a second harmonic generation cavity, which in turn is pumped by a Nd:YAG laser. By using various frequency locking techniques, the quadrature phase of the squeezing is stabilised, therefore making our squeezed source suitable for long term measurements. The best recorded squeezing is 5.5dB (or 70\%) below the standard quantum limit. The stability of our experiment makes it possible to perform a time domain measurement of photocurrent correlations due to squeezing. This technique allows direct visualisation of the quantum correlations caused by squeezed light. On the road to developing our squeezed source, methods of frequency locking optical cavities are investigated. In particular, the tilt locking method is tested on the second harmonic generation cavity used in the squeezing experiment. The standard method for locking this cavity involves the use of modulation sidebands, therefore leading to a noisy second harmonic wave. The modulation free tilt-locking method, which is based on spatial mode interference, is shown to be a reliable alternative. In some cases, electro-optic control may be used to suppress quantum measurement noise. Electro-optic feedback is investigated as a method for suppressing radiation pressure noise in an optical cavity. Modelling shows that the `squashed' light inside a feedback loop can reduce radiation pressure noise by a factor of two below the standard quantum limit. This result in then applied to a thermal noise detection system. The reduction in radiation pressure noise is shown to give improved thermal noise sensitivity, therefore proving that the modified noise properties of light inside a feedback loop can be used to reduce quantum measurement noise. Another method of electro-optic control is electro-optic feedforward. This is also investigated as a technique for manipulating quantum measurements. It is used to achieve noiseless amplification of a phase quadrature signal. The results clearly show that a feedforward loop is a phase sensitive amplifier that breaks the quantum limit for phase insensitive amplification. This experiment is the first demonstration of noiseless phase quadrature amplification. Finally, feedforward is explored as a tool for improving the performance of quantum nondemolition measurements. Modelling shows that feedforward is an effective method of increasing signal transfer efficiency. Feedforward is also shown to work well in conjunction with meter squeezing. Together, meter squeezing and feedforward provide a comprehensive quantum nondemolition enhancement package. Using the squeezed light from our optical parametric amplifier, an experimental demonstration of the enhancement scheme is shown to achieve record signal transfer efficiency of $T_{s}+T_{m}=1.81$.
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Lam, Ping Koy, and Ping Lam@anu edu au. "Applications of Quantum Electro-Optic Control and Squeezed Light." The Australian National University. Faculty of Science, 1999. http://thesis.anu.edu.au./public/adt-ANU20030611.170800.

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In this thesis, we report the observations of optical squeezing from second harmonic generation (SHG), optical parametric oscillation (OPO) and optical parametric amplification (OPA). Demonstrations and proposals of applications involving the squeezed light and electro-optic control loops are presented. ¶ In our SHG setup, we report the observation of 2.1 dB of intensity squeezing on the second harmonic (SH) output. Investigations into the system show that the squeezing performance of a SHG system is critically affected by the pump noise and a modular theory of noise propagation is developed to describe and quantify this effect. Our experimental data has also shown that in a low-loss SHG system, intra-cavity nondegenerate OPO modes can simultaneously occur. This competition of nonlinear processes leads to the optical clamping of the SH output power and in general can degrade the SH squeezing. We model this competition and show that it imposes a limit to the observable SH squeezing. Proposals for minimizing the effect of competition are presented. ¶ In our OPO setup, we report the observation of 7.1 dB of vacuum squeezing and more than 4 dB of intensity squeezing when the OPO is operating as a parametric amplifier. We present the design criteria and discuss the limits to the observable squeezing from the OPO.We attribute the large amount of squeezing obtained in our experiment to the high escape efficiency of the OPO. The effect of phase jitter on the squeezing of the vacuum state is modeled. ¶ The quantum noise performance of an electro-optic feedforward control loop is investigated. With classical coherent inputs, we demonstrate that vacuum fluctuations introduced at the beam splitter of the control loop can be completely cancelled by an optimum amount of positive feedforward. The cancellation of vacuum fluctuations leads to the possibility of noiseless signal amplification with the feedforward loop. Comparison shows that the feedforward amplifier is superior or at least comparable in performance with other noiseless amplification schemes. When combined with an injection-locked non-planar ring Nd:YAG laser, we demonstrate that signal and power amplifications can both be noiseless and independently variable. ¶ Using squeezed inputs to the feedforward control loop, we demonstrate that information carrying squeezed states can be made robust to large downstream transmission losses via a noiseless signal amplification. We show that the combination of a squeezed vacuum meter input and a feedforward loop is a quantum nondemolition (QND) device, with the feedforward loop providing an additional improvement on the transfer of signal. In general, the use of a squeezed vacuum meter input and an electro-optic feedforward loop can provide pre- and post- enhancements to many existing QND schemes. ¶ Finally, we proposed that the quantum teleportation of a continuous-wave optical state can be achieved using a pair of phase and amplitude electro-optic feedforward loops with two orthogonal quadrature squeezed inputs. The signal transfer and quantum correlation of the teleported optical state are analysed. We show that a two dimensional diagram, similar to the QND figures of merits, can be used to quantify the performance of a teleporter.
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Buchler, Benjamin. "Electro-optic control of quantum measurements." Phd thesis, 2001. http://hdl.handle.net/1885/46232.

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The performance of optical measurement systems is ultimately limited by the quantum nature of light. In this thesis, two techniques for circumventing the standard quantum measurement limits are modelled and tested experimentally. These techniques are electro-optic control and the use of squeezed light. ...
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Lam, Ping Koy. "Applications of Quantum Electro-Optic Control and Squeezed Light." Phd thesis, 1998. http://hdl.handle.net/1885/47657.

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In this thesis, we report the observations of optical squeezing from second harmonic generation (SHG), optical parametric oscillation (OPO) and optical parametric amplification (OPA). Demonstrations and proposals of applications involving the squeezed light and electro-optic control loops are presented. ¶ ...
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Conference papers on the topic "Quantum electro-optic control"

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Gobert, Olivier, Pierre-Mary Paul, Jean-Francois Hergott, Olivier Tcherbakoff, Fabien Lepetit, Francois Viala, and Michel Comte. "Carrier-envelope phase control by linear electro-optic effect in LiNbO3." In 12th European Quantum Electronics Conference CLEO EUROPE/EQEC. IEEE, 2011. http://dx.doi.org/10.1109/cleoe.2011.5942996.

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Smirl, Arthur L., M. J. Snelling, X. R. Xuang, D. R. Harken, and E. Towe. "Electro-Optic Polarization Modulation in [110]-Oriented GaAs-InGaAs Multiple Quantum Wells." In Spatial Light Modulators. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.smd.6.

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Normal incidence electro-optic spatial light modulators are desirable for applications in computing and communications. Ideally, such devices should be capable of high speed operation, have a large dynamic range, and accommodate broad spectral bandwidths. They should also be insensitive to small ambient and device temperature fluctuations and should be integrable with detector and control electronics. To date, most research on semiconductor modulators has focused on amplitude modulation and has relied on the quantum-confined-Stark effect (QCSE) to produce the required change in absorption. However, limitations on the number of quantum wells that realistically can be incorporated into multiple quantum well (MQW) amplitude modulators prevents the contrast ratio from exceeding ~10:1 (and more typically it is ~4:1). In addition, QCSE modulators with a narrow optical bandwidth inherently have a narrow operating temperature range.1
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Torregrosa, A. J., H. Maestre, M. L. Rico, and J. Capmany. "Electro-Optic Control of Intra-Cavity Image Up-Conversion for Fast Range-Gated Systems." In 2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). IEEE, 2019. http://dx.doi.org/10.1109/cleoe-eqec.2019.8871586.

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Canoglu, Ergun, Elsa Garmire, I. Lahiri, D. D. Nolte, and M. R. Melloch. "Pre-illumination to Control The Active Trap Density in a Semi-Insulating MQW Device." In Spatial Light Modulators. Washington, D.C.: Optica Publishing Group, 1997. http://dx.doi.org/10.1364/slmo.1997.smc.4.

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Semiconductor photorefractive quantum well devices are prime candidates for high speed real-time image processing applications because of their high speed, small thickness and large electro-optic nonlinearities1,2,3. When used in the Stark geometry, where a field is applied perpendicular to MQW layers, the optical nonlinearity arises from longitudinal field screening in the illuminated areas. Lateral spatial modulation of the field screening is translated to lateral spatial modulation of refractive index and absorption by the quantum confined Stark effect. Device performance is characterized by spatial resolution and sensitivity, both of which strongly depend on carrier transport. The spatial resolution decreases with increased lateral carrier transport4,5, while the sensitivity increases with increased longitudinal transport. Highly trapping materials have been successfully used to increase the device resolution down to 5-7 μm6,7.
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Breuer, S., L. Drzewietzki, and W. Elsasser. "Extended ground-state and excited-state carrier dynamics control in a mode-locked two-section quantum dot laser: Joining absorber reverse-bias and resistor self-electro-optic effect (SEED) emission-state regimes." In 12th European Quantum Electronics Conference CLEO EUROPE/EQEC. IEEE, 2011. http://dx.doi.org/10.1109/cleoe.2011.5942558.

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Krol, Mark F., Kent E. Hulick, and Michael J. Hayduk. "Electro-optic (Ga,In)As/(Al,In)As coupled quantum well materials and devices." In Aerospace/Defense Sensing and Controls, edited by Andrew R. Pirich. SPIE, 1996. http://dx.doi.org/10.1117/12.243110.

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Oksenhendler, Thomas, Daniel Kaplan, Pierre Tournois, Gregory M. Greetham, and Frederic Estable. "Ultrawideband regenerative amplifiers via intracavity Acousto-Optic Programmable Gain Control." In 2006 Conference on Lasers and Electro-Optics and 2006 Quantum Electronics and Laser Science Conference. IEEE, 2006. http://dx.doi.org/10.1109/cleo.2006.4628149.

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