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We report on the experimental observation of induced solitons in a passively mode-locked fiber ring laser with birefringence cavity. Due to the cross coupling between the two orthogonal polarization components of the laser, it was found…

Optics · Physics 2015-05-14 H. Zhang , D. Y. Tang , L. M. Zhao , H. Y. Tam

We report on the linear polarization of polariton condensates in a codirectional coupler that allows evanescent coupling between adjacent waveguides. We observe polarization-dependent intensity oscillations in the output terminal of the…

The dissipative properties of an optical cavity can be effectively controlled by placing it in a feedback loop where the light at the cavity output is detected and the corresponding signal is used to modulate the amplitude of a laser field…

Vertical external-cavity surface-emitting lasers (VECSELs) augmented by intra-cavity nonlinear optical frequency conversion have emerged as an attractive light source of ultraviolet to visible light for demanding scientific applications,…

Photonic realizations of neural network computing hardware are a promising approach to enable future scalability of neuromorphic computing. In this review we provide an overview on vertical-cavity surface-emitting lasers (VCSELs) and how…

Emerging Technologies · Computer Science 2021-12-16 Anas Skalli , Joshua Robertson , Dafydd Owen-Newns , Matej Hejda , Xavier Porte , Stephan Reitzenstein , Antonio Hurtado , D. Brunner

We present a theoretical study of the slow and fast light propagation in semiconductor optical amplifiers based on coherent population oscillations. By modulating the injection current to force the population oscillations we can modify the…

A semiconductor laser subject to delayed optical feedback is investigated in the limit of extremely intense feedback power. In a range of feedback polarization rotation angles the emission spectra of the laser reveal a giant gap with width…

Optics · Physics 2007-10-10 Noam Gross , Zav Shotan , Tal Galfsky , Lev Khaykovich

Multimode optical fibers have seen increasing applications in communication, imaging, high-power lasers and amplifiers. However, inherent imperfections and environmental perturbations cause random polarization and mode mixing, making the…

Chiral coupling between quantum emitters and evanescent fields allows directional emission into nanophotonic devices and is now considered to be a vital ingredient for the realization of quantum networks. However, such coupling requires a…

Quantum Physics · Physics 2024-04-04 Lucas Ostrowski , Scott Parkins , Morito Shirane , Mark Sadgrove

We report a strong experimental evidence of the optical anisotropy in a CdTe-based microcavity: the polarization of light is pinned to one of the crystallographic axes independently on the polarization of the excitation. The polarization…

Materials Science · Physics 2009-12-03 L. Klopotowski , M. D. Martin , A. Amo , L. Vina , I. A. Shelykh , M. M. Glazov , G. Malpuech , A. V. Kavokin , R. Andre

We develop a fully quantized model of a Bose-Einstein condensate driven by a far off-resonant pump laser which interacts with a single mode of an optical ring cavity. In the linear regime, the cavity mode exhibits spontaneous exponential…

Quantum Physics · Physics 2009-10-31 M. G. Moore , P. Meystre

Recently, on-chip single-mode laser emission has attracted considerable research attention due to its wide applications. While most of single-mode lasers in coupled microdisks or microrings have been qualitatively explained by either…

Optics · Physics 2015-04-15 Meng Li , Nan Zhang , Kaiyang Wang , Jiankai Li , Shumin Xiao , Qinghai Song

A low-cost single frequency laser emitting in the mid-infrared spectral region and dissipating minimal electrical power is a key ingredient for the next generation of portable gas sensors for high-volume applications involving chemical…

A new technique based on superposition of two speckle patterns is proposed and demonstrated for controlled modulation of the spatial polarization distribution of the resultant speckle. It is demonstrated both theoretically and…

Optics · Physics 2021-11-15 Abhijit Roy , Rakesh K. Singh , Maruthi M. Brundavanam

Light emitters in a single-mode nanolaser interact with the same cavity field, that gives rise to polarization correlations which transform the cavity mode. Usually these correlations are ignored, however, collective phenomena can lead to…

Optics · Physics 2022-02-23 Andrey A. Vyshnevyy

Here we demonstrate that photocurrent noise reduction below the standard quantum limit and modal anticorrelation can arise in two mode coupled two-VECSEL system with common pump. This effect occurs due to correlated loss of laser modes. It…

Quantum Physics · Physics 2015-01-09 D. Mogilevtsev , D. B. Horoshko , Yu. M. Golubev , M. I. Kolobov

If an atom is able to exhibit macroscopic dark periods, or electron shelving, then a driven system of two atoms has three types of fluorescence periods (dark, single and double intensity). We propose to use the average durations of these…

Quantum Physics · Physics 2008-12-18 Almut Beige , Gerhard C. Hegerfeldt

The limits of applicability of the Lang-Kobayashi (LK) model for a semiconductor laser with optical feedback are analyzed. The model equations, equipped with realistic values of the parameters, are investigated below solitary laser…

A single transverse mode high pulse-energy VECSEL was developed. The GaSb based VECSEL emits at a wavelength of 2.04 microns with a peak power exceeding 500W while maintaining good beam quality. The cavity employs a Pockels cell combined…

Optics · Physics 2021-10-05 Jacob Hoehler , Ricky Gibson , Jennifer Reed , Robert Bedford

We further elaborate the theory of quantum fluctuations in vertical-cavity surface-emitting lasers (VCSELs), developed in Ref. \cite{Hermier02}. In particular, we introduce the quantum Stokes parameters to describe the quantum self- and…

Quantum Physics · Physics 2013-12-24 Yu. M. Golubev , T. Yu. Golubeva , M. I. Kolobov , E. Giacobino
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