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The third-order non-linearity of silicon gives rise to a spontaneous four-wave mixing process in which correlated photon pairs are generated. Sources based on this effect can be used for quantum computation and cryptography, and can in…

Optics · Physics 2016-04-20 Momchil Minkov , Vincenzo Savona

We theoretically propose and experimentally demonstrate coherent wavelength conversion of optical photons using photon-phonon translation in a cavity-optomechanical system. For an engineered silicon optomechanical crystal nanocavity…

Optics · Physics 2013-02-06 Jeff T. Hill , Amir H. Safavi-Naeini , Jasper Chan , Oskar Painter

Electromagnetic radiation in the mid- to far-infrared spectral range represents an indispensable tool for the study of numerous types of collective excitations in solids and molecules. Short and intense pulses in this THz spectral range…

Mesoscale and Nanoscale Physics · Physics 2022-05-03 T. Janssen , C. S. Davies , M. Gidding , V. Chernyy , J. M. Bakker , A. Kirilyuk

Dual-comb generation from a single laser cavity provides a simple and high-performance solution to time sampling applications. We demonstrate a compact single-cavity dual-comb laser operating at gigahertz repetition rates and high…

We demonstrate broadband tuning of an optomechanical microcavity optical resonance by exploring the large optomechanical coupling of a double-wheel microcavity and its uniquely low mechanical stiffness. Using a pump laser with only 13 mW at…

We propose a scheme generating robust squeezed light by using double cavity optomechanical system driven by a blue detuned laser in one cavity and by a red detuned laser in the other. This double cavity system is shown to mimic effectively…

Quantum Physics · Physics 2014-11-14 Kenan Qu , G. S. Agarwal

We report the generation of squeezed vacuum states of light at 1550 nm with a broadband quantum noise reduction of up to 4.8 dB ranging from 5 MHz to 1.2 GHz sideband frequency. We used a custom-designed 2.6 mm long biconvex…

Quantum Physics · Physics 2013-10-17 Stefan Ast , Moritz Mehmet , Roman Schnabel

Based on the dual-chirped optical parametric amplification and type-I BiB$_3$O$_6$(BiBO) crystals, the generation of $>$100 mJ, 10.4 fs, 10 Hz, carrier-to-envelope phase (CEP)-stable laser pulses, which are centered at 1.7 $\mu$m, is…

A compact frequency-doubled diode-pumped Nd:YAG master-oscillator power-amplifier laser system with programmable microsecond pulse length has been developed. Analog pulse shaping of the output from a single-frequency continuous-wave Nd:YAG…

Optics · Physics 2021-06-17 Maximilian Beyer , Jack C. Roth , Eustace Edwards , David DeMille

We propose an experimental set up allowing to convert an input light of wavelengths about $1-2 \mu m$ into an output light of a lower frequency. The basic principle of operating relies on the nonlinear optical properties exhibited by a…

Quantum Physics · Physics 2009-11-07 Patrick Navez

Frequency-stabilized mid-infrared lasers are valuable tools for precision molecular spectroscopy. However, their implementation remains limited by complicated stabilization schemes. Here we achieve optical self-locking of a quantum cascade…

Optics · Physics 2021-06-29 Gang Zhao , Jianfei Tian , Joseph T. Hodges , Adam J. Fleisher

Photonic quantum technologies require efficient sources of pure single photons. We present a heralded single-photon source based on spontaneous parametric down-conversion in a monolithic cavity optimized for high spectral and spatial…

Quantum Physics · Physics 2026-05-11 Xavier Barcons Planas , Helen M. Chrzanowski , Janik Wolters

We demonstrate a two-crystal mid-infrared dual-wavelength optical parametric oscillator, synchronously pumped by a high power femtosecond Yb:fiber laser. The singly-resonant ring cavity, containing two periodically poled lithium niobate…

Optics · Physics 2015-08-19 Yuwei Jin , Simona M. Cristescu , Frans J. M. Harren , Julien Mandon

We present a design for a high-energy single stage mid-IR difference frequency generation adapted to a two-color Ti:sapphire amplifier system. The optimized mixing process is based on chirped pulse difference frequency generation (CP-DFG),…

Optics · Physics 2015-06-17 Christian Erny , Christoph P. Hauri

With the proposal of dual-wavelength pumping (DWP) scheme, DWP Er:ZBLAN fiber lasers at 3.5 um have become a fascinating area of research. However, limited by the absence of suitable saturable absorber, passively Q-switched and mode-locked…

We report 100% duty cycle generation of sub-MHz single photon pairs at the Rubidium D$_1$ line using cavity-enhanced spontaneous parametric downconversion. The temporal intensity crosscorrelation function exhibits a bandwidth of $666 \pm…

Quantum Physics · Physics 2020-10-02 Markus Rambach , Aleksandrina Nikolova , Till J. Weinhold , Andrew G. White

We propose and investigate a scheme for the steady-state emission of quantum-correlated, telecom-band light from a single multilevel atom. By appropriately tuning the frequency of a pair of lasers, a two-photon transition is continually…

Quantum Physics · Physics 2026-02-02 Alex Elliott , Takao Aoki , Scott Parkins

Using a nondegenerate four-wave mixing (FWM) process based on a double-{\Lambda} scheme in hot cesium vapor, we demonstrate a compact diode-laser-pumped quantum light source for the generation of quantum correlated twin beams with a maximum…

Quantum Physics · Physics 2018-03-09 Rong Ma , Wei Liu , Zhongzhong Qin , Xiaolong Su , Xiaojun Jia , Junxiang Zhang , Jiangrui Gao

We have performed the harmonic analysis of the steady-state coherent pulse-stacking process in a high-Q Fabry-Perot cavity. The expression for the stacked pulse shape is obtained as a function of both the laser cavity and pulse-stacking…

Accelerator Physics · Physics 2007-05-23 V. P. Androsov , I. M. Karnaukhov , Yu. N. Telegin

We derive general conditions for 100 percent frequency conversion in any doubly resonant nonlinear cavity, for both second- and third-harmonic generation via chi2 and chi3 nonlinearities. We find that conversion efficiency is optimized for…