Results 31 to 40 of about 388,335 (278)
Narrow-Linewidth Multi-Wavelength Random Distributed Feedback Laser [PDF]
Journal of Lightwave Technology, 2015 In this work, narrow-band emission lines are generated by means of two random distributed feedback fiber laser schemes. Spectral line-widths as narrow as 3.2 pm have been measured, which significantly improves previous reported results. The laser is analyzed with the aim of obtaining a spectral line-width as narrow as possible. Additionally a variation
Leandro González, Daniel +3 more
openaire +3 more sources
Detached Error Feedback for Distributed SGD with Random Sparsification
, 2020 The communication bottleneck has been a critical problem in large-scale distributed deep learning. In this work, we study distributed SGD with random block-wise sparsification as the gradient compressor, which is ring-allreduce compatible and highly computation-efficient but leads to inferior performance.
An Xu, Heng Huang 0001
openaire +3 more sources
High‐power random distributed feedback fiber laser: From science to application
Annalen Der Physik, 2016 Xiao-Lin Wang, Pu Zhou
exaly +2 more sources
Laser physics, 2020 A low-threshold and simple structure switchable multi-wavelength fiber laser based on random distributed feedback (RDFB) is presented. The experiment setup incorporates a two-stage Sagnac fiber loop mirror, an 8 m long erbium-doped fiber (EDF), and a 25 ...
Jingwei Liu +4 more
semanticscholar +1 more source
Random distributed feedback fiber laser of ultimate efficiency [PDF]
Advanced Photonics, 2014 We demonstrate a random fiber laser of ultimate efficiency. More than 2 Watts are generated from 0.5W of pump excess over the generation threshold. At higher power, an optical efficiency corresponds to the quantum limit.
Ilya D. Vatnik +3 more
openaire +1 more source
Temporally Stable Random Fiber Laser Operates at 1070 nm
IEEE Photonics Journal, 2015 We experimentally demonstrate a temporally stable random fiber laser (RFL) operating at 1070-nm wavelength. A piece of 25-km passive fiber pumped by a 1018-nm ytterbium-doped fiber laser provides both Raman amplification from stimulated Raman scattering ...
Xueyuan Du +4 more
doaj +1 more source
Distributed Event Triggering Algorithm for Multi-Agent System over a Packet Dropping Network
Sensors, 2021 The availability of wireless networked control systems (WNCSs) has increased the interest in controlling multi-agent systems. Multiple feedback loops are closed over a shared communication network in such systems.
Ali Bemani, Niclas Björsell
doaj +1 more source
Optics Express, 2020 Owing to the special power distribution property, a random distributed feedback Raman fiber laser can achieve a high power spectrally flexible output with a low power spectrally tuning device.
Yang Zhang +5 more
semanticscholar +1 more source
Lyot-filter-based multiwavelength random distributed feedback fiber laser [PDF]
SPIE Proceedings, 2014 Multiwavelength lasing in the random distributed feedback fiber laser is demonstrated by employing an all fiber Lyot filter. Stable multiwavelength generation is obtained, with each line exhibiting sub-nanometer line-widths. A flat power distribution over multiple lines is also obtained, which indicates the contribution of nonlinear wave mixing towards
Srikanth Sugavanam +5 more
openaire +1 more source
Broadband random optoelectronic oscillator
Nature Communications, 2020 Optoelectronic oscillators (OEOs) are used to generate low-noise microwave oscillations for many technologies but typically operate in a limited frequency range.
Zengting Ge +5 more
doaj +1 more source