Results 251 to 260 of about 984,932 (306)

Fiber lasers with regular and random distributed feedback

Optical Fiber Communication Conference (OFC) 2021, 2021
We review our recent results on fiber lasers with distributed feedback based on π-shifted or random fiber Bragg gratings, and random index structures inscribed by femtosecond pulses in singlemode or multicore/multimode fibers.
S. Babin, A. Kuznetsov, A. Wolf, M. Skvortsov, A. Dostovalov, S. Kablukov, E. Podivilov, S. Wabnitz   +7 more
semanticscholar   +3 more sources

Random distributed feedback fibre laser

Nature Photonics, 2010
I will overview our recent results on ultra-long lasers and will discuss the concept of a fiber laser with an open cavity that operates using random distributed feedback provided by Rayleigh scattering amplified through the Raman effect.
Sergei K. Turitsyn, Sergey A. Babin, Atalla E. El-Taher, Paul Harper, Dmitriy V. Churkin, Sergey I. Kablukov, Juan Diego Ania-Castañón, Vassilis Karalekas, Evgenii V. Podivilov   +8 more
openaire   +3 more sources

ROGUE-based, random distributed feedback lasers (Conference Presentation)

Fiber Lasers XVII: Technology and Systems, 2020
In this work, we show that the enhanced backscatter originating from the recently discovered ROGUE (Random Optical Grating by Ultraviolet or ultrafast laser Exposure) increases the performance of random distributed feedback lasers.
F. Monet, V. Lambin-Iezzi, J. Boisvert, Billie Maubois, R. Kashyap   +4 more
semanticscholar   +3 more sources

Poisson distribution of extreme events in radiation of random distributed feedback fiber laser.

Optics Letters, 2020
In the present Letter, we experimentally investigate extreme events in the time dynamics of the random distributed feedback fiber laser. We find that the probability of extreme events depends on the wavelength of the generated light.
O. Gorbunov, S. Sugavanam, I. Vatnik, D. Churkin   +3 more
semanticscholar   +3 more sources

Tunable random distributed feedback Raman fiber laser with Fourier spectral shaper for feedback control

Fiber Lasers XVIII: Technology and Systems, 2021
Cascaded Raman Fiber Lasers (CRFL) bridges the gap between conventional fiber lasers emission bands by providing output in the intermediate wavelengths by cascaded Raman stokes conversion.
Sarthak Dash, Rashmita Deheri, Vishal Choudhury, V. Supradeepa   +3 more
semanticscholar   +2 more sources

Switchable multi-wavelength random distributed feedback fiber laser

Optik, 2019
A novel switchable multi-wavelength erbium-doped fiber laser based on random distributed feedback is demonstrated in this paper. Based on loop mirror to form a half-opened laser cavity, typical random laser radiation is achieved with an obvious threshold
Di Zhu, Xiaodong Sun, Junfa Zhao, Jinjun Bai   +3 more
semanticscholar   +2 more sources

Ultrafast Raman fiber Laser with Random Distributed Feedback

Laser & Photonics Reviews, 2018
AbstractUltrafast Raman fiber lasers are wavelength‐agile light sources for various scientific and medical applications. Pulse pumping is an efficient way to generate a high power ultrafast Raman fiber laser, which however requires real‐time synchronization between the pump pulses and laser cavity.
Weiwei Pan, Lei Zhang, Huawei Jiang, Xuezong Yang, S. Cui, Yan Feng   +5 more
semanticscholar   +2 more sources

Random Distributed Feedback Fiber Laser Generating Cylindrical Vector Beams

Physical Review Applied, 2019
The invention discloses a random distributed feedback fiber laser generating cylindrical vector beams. Because of the existence of random distributed feedback in the laser, the output cylindrical vector beam has the characteristic of low coherence.
Jinghao Wang, Ruishan Chen, Junna Yao, H. Ming, Anting Wang, Q. Zhan   +5 more
semanticscholar   +2 more sources

Common-cavity ytterbium/Raman random distributed feedback fiber laser

Laser Physics Letters, 2017
In this letter, a common-cavity random distributed feedback fiber laser which can generate both 1064 nm ytterbium-doped random lasing and 1115 nm ytterbium-Raman random lasing is proposed and experimentally demonstrated for the first time. The common cavity is based on the combination of the double-cladding ytterbium-doped fiber and the standard single
Han Wu, Zinan Wang, Q. He, Wei Sun, Y. Rao   +4 more
semanticscholar   +2 more sources

Intensity dynamics and statistical properties of random distributed feedback fiber laser

Optics Letters, 2015
We present first experimental investigation of fast-intensity dynamics of random distributed feedback (DFB) fiber lasers. We found that the laser dynamics are stochastic on a short time scale and exhibit pronounced fluctuations including generation of extreme events.
Oleg A. Gorbunov, Srikanth Sugavanam, Dmitry V. Churkin   +2 more
openaire   +4 more sources