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The evolution versus pump power of the spectrum of a singly resonant optical parametric oscillator based on an MgO-doped periodically poled stoichiometric lithium tantalate crystal is observed. The onset of cascade Raman lasing due to…

Optics · Physics 2015-05-13 T-H. My , O. Robin , O. Mhibik , C. Drag , F. Bretenaker

We propose a scheme to enhance the single- and two-photon blockade effect significantly in a standard optomechanical system (OMS) via optical parametric amplification (OPA). The scheme does not rely on the strong single-photon…

Quantum Physics · Physics 2020-06-24 Dong-Yang Wang , Cheng-Hua Bai , Xue Han , Shutian Liu , Shou Zhang , Hong-Fu Wang

Optically induced breaking of symmetries plays an important role in nonlinear photonics, with applications ranging from optical switching in integrated photonic circuits to soliton generation in ring lasers. In this work we study for the…

We describe the application of Raman Optical-fiber Amplification (ROA) for the phase coherent transfer of optical frequencies in an optical fiber link. ROA uses the transmission fiber itself as a gain medium for bi-directional coherent…

Ultrafast lasers with simultaneously high average and peak power have become indispensable for driving a multitude of applications, including high-harmonic generation, strong-field physics, and particle source applications. Both parametric…

Optical parametric process occurring in a nonlinear planar waveguide can serve as a source of light with nonclassical properties. Properties of the generated fields are substantially modified by scattering of the nonlinearly interacting…

Quantum Physics · Physics 2007-08-16 Jan Perina , Concita Sibilia , Daniela Tricca , Mario Bertolotti

Many ion species commonly used for laser-cooled ion trapping studies have a low-lying metastable 2D3/2 state that can become populated due to spontaneous emission from the 2P1/2 excited state. This requires a repumper laser to maintain the…

Atomic Physics · Physics 2013-02-04 T. Lindvall , T. Fordell , I. Tittonen , M. Merimaa

We report on a {\mu}J-scale mid-infrared optical parametric amplifier (OPA) based on the recently developed wide-bandgap orthorhombic crystal, BaGa4S7 (BGS), and directly compare its performance to that of LiGaS2 (LGS) in the same OPA…

Optics · Physics 2020-10-28 Zsuzsanna Heiner , Valentin Petrov , Mark Mero

Two-photon coherent states are one of the main building pillars of non-linear and quantum optics. It is the basis for the generation of minimum-uncertainty quantum states and entangled photon pairs, applications not obtainable from standard…

Mesoscale and Nanoscale Physics · Physics 2022-05-30 A. A. Reynoso , G. Usaj , D. L. Chafatinos , F. Mangussi , A. E. Bruchhausen , A. S. Kuznetsov , K. Biermann , P. V. Santos , A. Fainstein

A new device to generate polarization-entangled light in the continuous variable regime is introduced. It consists of an Optical Parametric Oscillator with two type-II phase-matched non-linear crystals orthogonally oriented, associated with…

Quantum Physics · Physics 2016-08-16 Julien Laurat , Gaëlle Keller , Claude Fabre , Thomas Coudreau

The study of optical parametric amplifiers (OPAs) has been successful in describing and creating nonclassical light for use in fields such as quantum metrology and quantum lithography [Agarwal, et al., J. Opt. Soc. Am. B, 24, 2 (2007)]. In…

Degenerate optomechanical parametric oscillators are optical resonators in which a mechanical degree of freedom is coupled to a cavity mode that is nonlinearly amplified via parametric down-conversion of an external pumping laser. Below a…

We develop reduced models that describe half-harmonic generation in a synchronously-pumped optical parametric oscillator above threshold, where nonlinearity, dispersion, and group-velocity mismatch are all relevant. These models are based…

We demonstrate a new regime for mid-infrared optical parametric chirped pulse amplification (OPCPA) based on achromatic quasi-phase-matching. Our mid-infrared OPCPA system is based on collinear aperiodically poled lithium niobate (APPLN)…

We report a theoretical study of a quantum optical model consisting of an array of strongly nonlinear cavities incoherently pumped by an ensemble of population-inverted two-level atoms. Projective methods are used to eliminate the atomic…

Quantum Gases · Physics 2016-09-21 José Lebreuilly , Iacopo Carusotto , Michiel Wouters

We report on the study of the third-order nonlinear optical interactions in In$_{x}$Ga$_{1-x}$As$_{y}$P$_{1-y}$/InP strip-loaded waveguides. The material composition and waveguide structures were optimized for enhanced nonlinear optical…

The interplay of the non-equivalent corners in the Brillouin zone of transition metal dichalcogenides have been investigated extensively. While experimental and theoretical works contributed to a detailed understanding of the relaxation of…

Mesoscale and Nanoscale Physics · Physics 2023-10-13 Malte Selig , Dominik Christiansen , Manuel Katzer , Mariana V. Ballottin , Peter C. M. Christianen , Andreas Knorr

We discuss the concept of characteristic squeezing modes applied to a travelling-wave optical parametric amplifier pumped by an ultrashort pulse. The characteristic modes undergo decoupled single-mode squeezing transformations, and…

Quantum Physics · Physics 2007-05-23 A. I. Lvovsky , W. Wasilewski , K. Banaszek

We have shown earlier that hyperfine spectroscopy in a vapor cell using co-propagating pump-probe beams has many advantages over the usual technique of saturated-absorption spectroscopy using counter-propagating beams. The main advantages…

Atomic Physics · Physics 2010-09-01 Alok K. Singh , Sapam Ranjita Chanu , Dipankar Kaundilya , Vasant Natarajan

We analyze the impact of pump depletion in the generation of cavity solitons in a singly-resonant parametrical oscillator that includes a $\chi^{(3)}$ nonlinear section. We find an analytical expression that provides the soliton existence…