Results 21 to 30 of about 984,932 (306)

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, Rota Rodrigo, Sergio, Ardanaz, Diego, López-Amo Sáinz, Manuel   +3 more
openaire   +3 more sources

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, Zhijun Yan, Vladimir Kamynin, Andrew S. Kurkov, Lin Zhang, Dmitry Churkin   +5 more
openaire   +1 more source

1.7 μm self-synchronized picosecond pulsed random Raman fiber laser

Shenzhen Daxue xuebao. Ligong ban, 2022
Aiming at the structural complexity of the current 1.7 μm band short pulse lasers, we propose and implement a self-synchronized picosecond pulsed random Raman fiber laser.
ZHU Yihuai, SHEN Pengsheng, ZHENG Shukai, YU Lingpeng, LUO Xing, WANG Jinzhang, YAN Peiguang, LÜ Qitao, DONG Fanlong, GUO Chunyu, RUAN Shuangchen   +10 more
doaj   +1 more source

An Ytterbium-Doped Narrow-Bandwidth Randomly Distributed Feedback Laser Emitting at a Wavelength of 976 nm

Photonics, 2023
All-fiber, polarization maintaining, narrow-bandwidth, Yb-doped fiber lasers with randomly distributed feedback operated near 976 nm were realized for the first time.
Danila A. Davydov, Andrey A. Rybaltovsky, Svetlana S. Aleshkina, Vladimir V. Velmiskin, Mikhail E. Likhachev, Sergei M. Popov, Dmitry V. Ryakhovskiy, Yuriy K. Chamorovskiy, Andrey A. Umnikov, Denis S. Lipatov   +9 more
doaj   +1 more source

Limited-Feedback-Based Channel-Aware Power Allocation for Linear Distributed Estimation [PDF]

, 2013
This paper investigates the problem of distributed best linear unbiased estimation (BLUE) of a random parameter at the fusion center (FC) of a wireless sensor network (WSN).
Fanaei, Mohammad, Schmid, Natalia A., Valenti, Matthew C.   +2 more
core   +1 more source

Tunable Erbium-Doped Fiber Laser Based on Random Distributed Feedback

IEEE Photonics Journal, 2014
A tunable erbium-doped fiber (EDF) laser based on random distributed feedback through backward Rayleigh scattering in a 20-km-long single-mode fiber and a tunable fiber Fabry-Perot interferometer filter is demonstrated.
Lulu Wang, Xinyong Dong, Perry Ping Shum, Haibin Su   +3 more
doaj   +1 more source

Reflectivity variation in asymmetric random distributed feedback Raman fiber laser [PDF]

, 2015
This paper demonstrates and discusses the effect of reflectivity on the intracavity power development and spectral profile of a 41.1 km asymmetric (half-opened cavity) random distributed feedback fiber laser with different pumping schemes.
Abu Bakar, Muhammad Hafiz, Mahamd Adikan, Faisal Rafiq, Mahdi, Mohd Adzir, Tamchek, Nizam, Zainol Abidin, Nadiah   +4 more
core   +2 more sources

Gaussian Multiple and Random Access in the Finite Blocklength Regime [PDF]

, 2020
This paper presents finite-blocklength achievabil- ity bounds for the Gaussian multiple access channel (MAC) and random access channel (RAC) under average-error and maximal-power constraints. Using random codewords uniformly distributed on a sphere and a
Effros, Michelle, Kostina, Victoria, Yavas, Recep Can   +2 more
core   +2 more sources

Random raman fiber laser based on a twin-core fiber with FBGs inscribed by femtosecond radiation [PDF]

, 2019
Narrowband Raman lasing in a polarization-maintaining two-core fiber (TCF) is demonstrated. Femtosecond point-by-point inscription of fiber Bragg gratings (FBGs) in individual cores produces a half-open cavity with random distributed feedback.
Abdullina, S. R., Babin, S. A., Dostovalov, A. V., Lobach, I. A., Skvortsov, M. I., Vlasov, A. A., Wabnitz, S., Wolf, A. A.   +7 more
core   +1 more source

Open-Cavity Spun Fiber Raman Lasers with Dual Polarization Output [PDF]

, 2017
Random distributed feedback fiber Raman lasers, where the feedback mechanism is provided by Rayleigh backscattering, have attracted a good deal of attention since they were first introduced in 2010.
Ania castanon, Juan D., Corredera, Pedro, Gallazzi, Francesca, Nuño, Javier, Prieto, Francisco, Pulido, Concepción, Rizzelli, Giuseppe, Wabnitz, Stefan   +7 more
core   +3 more sources