Results 71 to 80 of about 61,302 (288)

Recent developments and advances in artificial saturable absorber for mode-locking in fiber lasers

Results in Engineering
In this work, we review recent work developments in artificial saturable absorbers (SAs) for ultrafast fiber lasers. The working principles of each technique, namely nonlinear polarization rotation (NPR), nonlinear optical loop mirror (NOLM) and ...
Yu Chen, Sin Jin Tan, Sulaiman Wadi Harun, G. Vinitha, Truong Khang Nguyen, Zian Cheak Tiu   +5 more
doaj   +1 more source

Ultrafast optical switching based on nonlinear polarization rotation in silicon waveguides

Optics Express, 2010
We experimentally realize ultrafast all-optical switching in the 1.5-microm spectral region using cross-phase modulation inside a 5-mm long silicon waveguide. Modulation depths of up to 90% and switching window durations approximately 1 ps are achieved using 500-fs pump pulses with energies below 10 pJ.
Jonathan Y, Lee, Lianghong, Yin, Govind P, Agrawal, Philippe M, Fauchet   +3 more
openaire   +2 more sources

Stochastic theory of polarized light in nonlinear birefringent media: An application to optical rotation

, 2018
A stochastic theory is developed for the light transmitting the optical media exhibiting linear and nonlinear birefringence. The starting point is the two--component nonlinear Schr{"o}dinger equation (NLSE).
Kuratsuji, Hiroshi, Tsuchida, Satoshi
core   +1 more source

2D Nanomaterials Toward Function‐Ready Superlubricity in Advanced Microsystems

Advanced Materials, EarlyView.
A unified framework links structural and transformation superlubricity with microsystem functions and deployment requirements. Mechanisms, device architectures, integration strategies, AI‐guided discovery, and benchmarking protocols are connected to define function‐ready superlubricity in advanced microsystems.
Yushan Geng, Jun Yang, Yong Yang
wiley   +1 more source

Arbitrarily rotating polarization direction and manipulating phases in linear and nonlinear ways using programmable metasurface

Light: Science & Applications
Independent controls of various properties of electromagnetic (EM) waves are crucially required in a wide range of applications. Programmable metasurface is a promising candidate to provide an advanced platform for manipulating EM waves. Here, we propose
Wei Liu, Si Ran Wang, Jun Yan Dai, Lei Zhang, Qiao Chen, Qiang Cheng, Tie Jun Cui   +6 more
doaj   +1 more source

Study of all-optical sampling using a semiconductor optical amplifier

Photonic Sensors, 2016
All-optical sampling is an important research content of all-optical signal processing. In recent years, the application of the semiconductor optical amplifier (SOA) in optical sampling has attracted lots of attention because of its small volume and ...
Chen Wu, Yongjun Wang, Lina Wang, Fu Wang   +3 more
doaj   +1 more source

All-normal-dispersion nonlinear polarization rotation mode-locked Tm:ZBLAN fiber laser

Optics Express, 2019
We demonstrated an all-normal-dispersion nonlinear polarization rotation mode-locked Tm:ZBLAN fiber laser in the 2 μm wavelength band. All fibers in the experiment were ZBLAN fibers with normal dispersion in the wavelength band. An average power of 63 mW with a characteristic cat-ear shaped optical spectrum of an ANDi laser was obtained.
Masaki, Tokurakawa, Hiromu, Sagara, Henrik, Tünnermann   +2 more
openaire   +2 more sources

Dissipative Dynamics of Collisionless Nonlinear Alfven Wave Trains

, 1997
The nonlinear dynamics of collisionless Alfven trains, including resonant particle effects is studied using the kinetic nonlinear Schroedinger (KNLS) equation model.
A. Barnes, A. Rogister, B. J. Vasquez, B. J. Vasquez, B. J. Vasquez, B. J. Vasquez, B. T. Tsurutani, B. T. Tsurutani, C. M. Ho, E. J. Smith, E. Mjolhus, G. P. Zank, J. V. Hollweg, J. Wyller, M. A. Malkov, M. A. Malkov, M. V. Medvedev, M. V. Medvedev, M. V. Medvedev, P. H. Diamond, R. H. Cohen, R. P. Lepping, S. Oughton, S. R. Spangler, V. I. Shevchenko, V. L. Galinsky   +25 more
core   +1 more source

Neuromorphic Electronics for Intelligence Everywhere: Emerging Devices, Flexible Platforms, and Scalable System Architectures

Advanced Materials, EarlyView.
The perspective presents an integrated view of neuromorphic technologies, from device physics to real‐time applicability, while highlighting the necessity of full‐stack co‐optimization. By outlining practical hardware‐level strategies to exploit device behavior and mitigate non‐idealities, it shows pathways for building efficient, scalable, and ...
Kapil Bhardwaj, Roshni Satheesh Babu, Yuxin Xia, Eva Bestelink, Radu Sporea, Nikos Hastas, Ioannis Zeimpekis, Dimitra G. Georgiadou, Sayani Majumdar   +8 more
wiley   +1 more source

Generation of 27 nm Spectral Bandwidth, Two-Port Output Pulses Directly from a Yb-Doped Fiber Laser

Photonics
We reported on a generation of 27 nm spectral bandwidth, two-port output ultrashort pulses directly from an all-normal-dispersion passively mode-locked Yb-fiber laser.
Junyu Chen, Mengyun Hu, Jianing Chen, Chixuan Zou, Zichen Zhao, Gantong Zhong, Shuai Yuan   +6 more
doaj   +1 more source