Results 41 to 50 of about 64,947 (285)
Raman suppression in high-power fiber laser oscillator by long period fiber grating
Results in Physics, 2021 Stimulated Raman scattering (SRS) is a major limiting factor for better performance of high-power fiber lasers. Several spectral filtering methods have been used for Raman suppression, among which long period fiber grating (LPFG) is relatively simple and
Qihao Hu +5 more
doaj +1 more source
Dysprosium-doped ZBLAN fiber laser tunable from 2.8 {\mu}m to 3.4 {\mu}m, pumped at 1.7 {\mu}m
, 2018 We demonstrate a mid-infrared dysprosium-doped fluoride fiber laser with a continuously tunable output range of 573 nm, pumped by a 1.7 {\mu}m Raman fiber laser. To the best of our knowledge, this represents the largest tuning range achieved to date from
Jackson, S. D. +2 more
core +1 more source
Single-frequency Raman Distributed-feedback Fiber Laser [PDF]
Conference on Lasers and Electro-Optics 2012, 2012 We report a 30cm-long Raman Distributed-feedback laser with ∼450mW threshold in a commercial Ge/Si fiber. The laser is pumped with up to 1.3W-CW at 1064nm and exhibits single-frequency performance with a linewidth
Shi, J.D., Alam, S.-U., Ibsen, M.
openaire +2 more sources
IEEE Photonics Journal, 2011 We theoretically analyze and experimentally optimize an O-band mixed-cascaded multiwavelength phosphosilicate Raman fiber laser (MRFL). The theoretical analyses show that the output power is insensitive to the variation of Raman fiber length when it ...
J. Z. Wang +5 more
doaj +1 more source
NanomaterialsHollow-core photonic crystal fibers (HC-PCFs) provide an ideal transmission medium and experimental platform for laser–matter interaction. Here, we report a cascaded all-fiber gas Raman laser based on deuterium (D2)-filled HC-PCFs.
Hao Li +6 more
doaj +1 more source
119-W Monolithic Single-Mode 1173-nm Raman Fiber Laser
IEEE Photonics Journal, 2013 We report a high-power high-efficiency single-mode all-fiber Raman fiber laser (RFL) operating at 1173 nm. With the core pumped by a 144-W 1120-nm Yb-doped fiber laser, an output power of 119 W at a wavelength of 1173 nm was obtained, corresponding to an
Hanwei Zhang +4 more
doaj +1 more source
A High Efficiency Architecture for Cascaded Raman Fiber Lasers
, 2013 We demonstrate a new high efficiency architecture for cascaded Raman fiber lasers based on a single pass cascaded amplifier configuration. Conversion is seeded at all intermediate Stokes wavelengths using a multi-wavelength seed source.
Headley, Clifford E. +5 more
core +1 more source
Laser‐Induced Graphene from Waste Almond Shells
Advanced Functional Materials, EarlyView.Almond shells, an abundant agricultural by‐product, are repurposed to create a fully bioderived almond shell/chitosan composite (ASC) degradable in soil. ASC is converted into laser‐induced graphene (LIG) by laser scribing and proposed as a substrate for transient electronics.
Yulia Steksova +9 more
wiley +1 more source
Pure Passive Fiber Enabled Highly Efficient Raman Fiber Amplifier With Record Kilowatt Power
IEEE Access, 2019 Kilowatt-level high-efficiency all-fiberized Raman fiber amplifier based on pure passive fiber is proposed for the first time in this paper. The laser system is established on master oscillator power amplification configuration, while a piece of graded ...
Yizhu Chen +4 more
doaj +1 more source
Erbium-doped and Raman microlasers on a silicon chip fabricated by the sol–gel process [PDF]
, 2005 We report high-Q sol–gel microresonators on silicon chips, fabricated directly from a sol–gel layer deposited onto a silicon substrate. Quality factors as high as 2.5×10^7 at 1561 nm were obtained in toroidal microcavities formed of silica sol–gel ...
Carmon, Tal +4 more
core +1 more source