Results 51 to 60 of about 2,979 (187)

Broadband Parametric Amplification in AlGaAs‐on‐Insulator Nanowaveguides

Laser &Photonics Reviews, EarlyView.
Harnessing the exceptional nonlinearity of AlGaAs‐on‐insulator nanowaveguides, four‐wave‐mixing parametric amplification achieves a record net on‐chip gain of 56 dB and a gain bandwidth exceeding 415 nm at telecom wavelengths. These results establish AlGaAsOI as a powerful platform for compact, high‐performance integrated nonlinear optical ...
Yanjing Zhao, Chanju Kim, Yi Zheng, Chaochao Ye, Yueguang Zhou, Kresten Yvind, Minhao Pu   +6 more
wiley   +1 more source

Frontiers of Bright CEP‐Stable Broadband Infrared Sources

Laser &Photonics Reviews, EarlyView.
Bright CEP‐stable broadband infrared sources push the limits of ultrafast science by delivering exceptional brightness alongside few‐cycle durations and multi‐octave spectral coverage. This review highlights emerging architectures and nonlinear conversion strategies that scale power while preserving phase stability.
Ugaitz Elu, Jens Biegert
wiley   +1 more source

Advances in Soliton Crystal Microcombs

Photonics
Soliton crystal microcombs, as a new type of Kerr frequency comb, offer advantages such as higher energy conversion efficiency and a simpler generation mechanism compared to those of traditional soliton microcombs.
Zhihui Liu, Haoran Zhang, Yuhang Song, Xiaotian Zhu, Caitlin E. Murray, Yunping Bai, Mengxi Tan, Sai T. Chu, David J. Moss, Xingyuan Xu, Kun Xu   +10 more
doaj   +1 more source

Two-Dimensional Discrete Cavity Solitons: Switching and All-Optical Gates

IEEE Photonics Journal, 2012
Light propagation in a 2-D array of coupled optical cavities with Kerr nonlinearity driven by a plane holding beam is numerically studied. Optical bistability together with its modulational instability (MI) are investigated, and 2-D discrete cavity ...
K. M. Aghdami, M. Golshani, R. Kheradmand   +2 more
doaj   +1 more source

Quasinormal Modes of Optical Solitons

Physical Review Letters
Quasinormal modes (QNMs) are essential for understanding the stability and resonances of open systems, with increasing prominence in black hole physics. We present here the first study of QNMs of optical potentials. We show that solitons can support QNMs, deriving a soliton perturbation equation and giving exact analytical expressions for the QNMs of ...
Christopher Burgess, Sam Patrick, Theo Torres, Ruth Gregory, Friedrich König   +4 more
openaire   +6 more sources

Harnessing Optical Limiting in Saturable Absorbers for Reconfigurable Spectral Engineering of Ultrafast Fiber Lasers

Laser &Photonics Reviews, EarlyView.
Optical limiting in a nanomaterial‐polymer saturable absorber is harnessed as a functional intracavity degree of freedom, where pump‐controlled photothermal loss continuously reshapes the gain spectrum of rare‐earth ions, enabling non‐mechanical spectral engineering in an ultrafast fiber laser.
Maolin Dai, Weitao Wang, Masahiro Nomura, Sze Yun Set, Shinji Yamashita   +4 more
wiley   +1 more source

Soliton sheets of Bose–Einstein condensates in optical lattices

New Journal of Physics
Soliton sheets are observed in Bose–Einstein condensates in optical lattice which are formed by superposition of condensates occupying different single-particle states. These structures consist of one-dimensional stationary solitons distributed in the x -
Shu-Song Wang, Su-Ying Zhang
doaj   +1 more source

Simulation of optical fiber power amplification via higher-order soliton generation using the extended nonlinear Schrödinger equation

Recent Advances in Natural Sciences
This study seeks to simulate the amplification of the optical fiber power by the generation of higher order solitons. This was achieved by solving an extended form of the nonlinear Schrödinger equation (NLSE) using the split step Fourier method (SSFM ...
E. V. Tikyaa, E. S. Nyiyongo , M. B. Ochang, S. D. Igba   +3 more
doaj   +1 more source

Numerical stability of solitons waves through splices in quadratic optical media

Acta Scientiarum: Technology, 2020
The propagation of soliton waves is simulated through splices in quadratic optical media, in which fluctuations of dielectric parameters occur. A new numerical scheme was developed to solve the complex system of partial differential equations (PDE) that
Camila Fogaça de Oliveira, Paulo Laerte Natti, Eliandro Rodrigues Cirilo, Neyva Maria Lopes Romeiro, Érica Regina Takano Natti   +4 more
doaj   +1 more source

Visible Octave Frequency Combs in Silicon Nitride Nanophotonic Waveguides Driven by Ti:Sapphire Lasers

Laser &Photonics Reviews, EarlyView.
Chip‐based frequency combs are usually pumped from telecom wavelengths, far from the visible. This work instead pumps close to the visible with a Ti:sapphire laser ‐ the source behind the original optical frequency combs and now becoming chip‐integrable‐ and lets silicon‐nitride waveguides convert it into efficient, octave‐spanning visible‐to‐infrared ...
Abdullah Alabbadi, Ewan Allan, Hanna Ostapenko, Pablo Castro‐Marín, Derryck T. Reid, Pascal Del'Haye   +5 more
wiley   +1 more source