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Optical frequency combs have the potential to become key building blocks of optical communication subsystems. The strictly equidistant, narrow-band spectral lines of a frequency comb can serve both as carriers for massively parallel data…

Signal Processing · Electrical Eng. & Systems 2019-07-03 Pablo Marin-Palomo , Juned N. Kemal , Wolfgang Freude , Sebastian Randel , Christian Koos

We identify a new class of time periodic attractor solutions in scalar field cosmology, which we term Cosmological Frequency Combs (CFC). These solutions arise in exponential quintessence models with a phantom matter background and exhibit…

Cosmology and Nongalactic Astrophysics · Physics 2025-07-03 Oem Trivedi , Madhurendra Mishra , Adarsh Ganesan

Femtosecond frequency combs have boosted progress in various fields of precision metrology. Nevertheless, demanding applications such as front-end frequency and time standards, ultrastable microwave generation or high-resolution…

We report on the experimental demonstration of a tunable monolithic optical frequency comb generator. The device is based on the four-wave mixing in a crystalline calcium fluoride whispering gallery mode resonator. The frequency spacing of…

Optical frequency combs generated in normally dispersive Kerr microresonators have been observed to correspond to dark temporal structures, and theoretically explained as interlocked switching waves (also known as domain walls or fronts).…

An optical frequency comb is a spectrum of optical radiation which consists of evenly spaced and phase-coherent narrow spectral lines and is initially invented in laser for frequency metrology purposes. A direct analogue of frequency combs…

Applied Physics · Physics 2023-06-16 Guan-Ting Xu , Mai Zhang , Yu Wang , Zhen Shen , Guang-Can Guo , Chun-Hua Dong

Multimode nonclassical states of light are an essential resource in quantum computation with continuous variables, for example in cluster state computation. They can be generated either by mixing different squeezed light sources using…

A detailed experimental study of antiphase dynamics in a two-mode semiconductor laser with optical injection is presented. The device is a specially designed Fabry-Perot laser that supports two primary modes with a THz frequency spacing.…

Optics · Physics 2009-11-13 S. Osborne , A. Amann , K. Buckley , G. Ryan , S. P. Hegarty , G. Huyet , S. O'Brien

We report a comprehensive study of low-power, octave-bandwidth, single-soliton microresonator frequency combs in both the 1550 nm and 1064 nm bands. Our experiments utilize fully integrated silicon-nitride Kerr microresonators, and we…

Electro-optic frequency combs were employed to rapidly interrogate an optomechanical sensor, demonstrating spectral resolution substantially exceeding that possible with a mode-locked frequency comb. Frequency combs were generated using an…

Optics · Physics 2022-04-01 D. A. Long , B. J. Reschovsky , F. Zhou , Y. Bao , T. W. LeBrun , J. J. Gorman

For the growing demand of frequency combs in mid-infrared (mid-IR), known as the "molecular fingerprint" region of the spectrum [1], down conversion of near-IR frequency combs through half- harmonic generation offers numerous benefits…

Optics · Physics 2015-10-14 Alireza Marandi , Kirk A. Ingold , Marc Jankowski , Robert L. Byer

Optical frequency comb, with precisely controlled spectral lines spanning a broad range, has been the key enabling technology for many scientific breakthroughs. In addition to the traditional implementation based on modelocked lasers,…

Optics · Physics 2023-01-02 Mingming Nie , Yijun Xie , Bowen Li , Shu-Wei Huang

Optical frequency comb generation by continuous-wave-pumped cascaded quadratic nonlinearities (CQN) appears a promising alternative to well-established modelocked lasers, especially if access to the mid-infrared spectral region is needed.…

Optics · Physics 2020-04-17 Ville Ulvila , Markku Vainio

Phononic frequency combs have been attracting an increasing attention both as a qualitatively new type of nonlinear phenomena in vibrational systems and from the point of view of applications. It is commonly believed that at least two modes…

Mesoscale and Nanoscale Physics · Physics 2022-07-11 J. S. Ochs , D. K. J. Boness , G. Rastelli , M. Seitner , W. Belzig , M. I. Dykman , E. M. Weig

We analyze experimentally and theoretically the spatio-temporal dynamics of a highly multimode semiconductor laser with coherent optical injection. Due to the particular geometry of the device (a 1~m long ring cavity), the multimode…

Pattern Formation and Solitons · Physics 2016-06-29 F. Gustave , L. Columbo , G. Tissoni , M. Brambilla , F. Prati , S. Barland

Quantum cascade lasers (QCLs) facilitate compact optical frequency comb sources that operate in the mid-infrared and terahertz spectral regions, where many molecules have their fundamental absorption lines. Enhancing the optical bandwidth…

We provide a full quantum description of the optomechanical system formed by a Fabry-Perot cavity with a movable micro-mechanical mirror whose center-of-mass and internal elastic modes are coupled to the driven cavity mode by both radiation…

Quantum Physics · Physics 2013-02-15 Mehdi Abdi , Ali Reza Bahrampour , David Vitali

The linewidth enhancement factor (LEF) has recently moved into the spotlight of research on frequency comb generation in semiconductor lasers. Here we present a novel modulation experiment, which enables the direct measurement of the…

Temporal correlations of radiation intensities of a multimode Fabry-Perot semiconductor laser are investigated. Strong intensity correlations with a fixed phase shift between different longitudinal modes of the laser are revealed. The…

Quantum Physics · Physics 2019-02-27 M. Lebedev , A. Demenev , A. Parakhonsky , O. Misochko

We systematically study the influence of simultaneously modulating the input laser intensity and quantum dot (QD) resonance frequecy on the mean-field dynamics, fluctuation energy transfer and entanglement in a optomechanical semi-conductor…

Quantum Physics · Physics 2020-07-24 Vijay Bhatt , Pradip K. Jha , Aranya B. Bhattacherjee , Souri Banerjee