Results 21 to 30 of about 2,082,533 (233)

A Passively Q-Switched Holmium-Doped Fiber Laser with Graphene Oxide at 2058 nm

Applied Sciences, 2021
This study reports a Q-switching-based, 2058-nm holmium (Ho) fiber laser incorporating a saturable absorber (SA) based on graphene oxide (GO). The SA was prepared with a side-polished fiber, while GO particles were deposited onto the fiber-polished ...
Jinho Lee, Ju Han Lee
doaj   +1 more source

Ultra-short wavelength operation of thulium-doped fiber amplifiers and lasers [PDF]

Optics Express, 2019
We fabricate and characterize a germanium/thulium (Ge/Tm) co-doped silica fiber in order to enhance the gain at the short wavelength edge of the thulium emission band (i.e. 1620-1660 nm). The Ge/Tm doped fiber shows an intrinsic blue-shifted absorption/emission cross-section compared to aluminum/thulium (Al/Tm) co-doped fiber, which greatly improves ...
Chen, Shaoxiang, Jung, Yongmin, Alam, Shaif-Ul, Richardson, David, Sidharthan, Raghuraman, Ho, Daryl, Yoo, Seongwoo, Daniel, Jae M.O.   +7 more
openaire   +3 more sources

Mid-infrared Spectral Intensity Enhanced Supercontinuum Generation Based on Nanosecond Thulium-Doped Fiber Laser

IEEE Photonics Journal, 2016
We report a mid-infrared (MIR) spectral intensity-enhanced supercontinuum (SC) generation from a ZrF4-BaF 2-LaF3-AlF3-NaF fiber pumped by a nanosecond thulium-doped fiber laser.
Deqin Ouyang, Junqing Zhao, Zhijian Zheng, Minqiu Liu, Chunbo Li, Shuangchen Ruan, Peiguang Yan, Jihong Pei   +7 more
doaj   +1 more source

2.56 W Single‐Frequency All‐Fiber Oscillator at 1720 nm

Advanced Photonics Research, 2022
The saturable absorption effect of unpumped, rare earth‐doped fiber can be used as a method of achieving single‐frequency operation in fiber lasers.
Junxiang Zhang, Quan Sheng, Lu Zhang, Chaodu Shi, Shuai Sun, Wei Shi, Jianquan Yao   +6 more
doaj   +1 more source

Tunable single-frequency ytterbium-sensitized erbium-doped fiber MOPA source with 150W (51.8 dBm) of output power at 1563 nm [PDF]

, 2005
A single-frequency, single-mode ytterbium-sensitized erbium-doped fiber master-oscillator power-amplifier generated 150 W of continuous-wave output power at 1563 nm with 33% slope efficiency and was tuned in the range of 1546 to 1566 nm at >125 ...
Jeong, Y., J. Nilsson, Nilsson, J., Codemard, C.A., Y. Jeong, Soh, D.B.S., D.B.S. Soh, C.A. Codemard, Sahu, J.K., J.K. Sahu   +9 more
core   +1 more source

Tunable 30W all-fiber laser emitting around 1850 nm [PDF]

EPJ Web of Conferences
We have demonstrated a tunable polarization maintaining thulium-doped fiber laser spanning the 1830nm-1880nm range with a fiber-coupled output power as high as 30W CW. The high- power booster stage is made using double clad fibers pumped with 793nm laser
Poncelet Kentin, Guiraud Germain, Traynor Nick, Hilico Adèle, Santarelli Giorgio   +4 more
doaj   +1 more source

Thulium-Doped Silica Fibers with Enhanced Fluorescence Lifetime and Their Application in Ultrafast Fiber Lasers

Fibers, 2018
In this work we report on the thulium-doped silica-based optical fibers with increased fluorescence lifetime of the 3F4 level thanks to the modification of the local environment of thulium ions by high content of alumina.
Jakub Cajzl, Pavel Peterka, Maciej Kowalczyk, Jan Tarka, Grzegorz Sobon, Jaroslaw Sotor, Jan Aubrecht, Pavel Honzátko, Ivan Kašík   +8 more
doaj   +1 more source

Stable Multi-Wavelength Thulium-Doped Fiber Laser With Two Cascaded Single-Mode-Four-Mode-Single-Mode Fiber Interferometers

IEEE Access, 2021
We propose and experimentally demonstrate a multi-wavelength thulium-doped fiber laser using two cascaded single-mode-four-mode-single-mode (SFS) fiber interferometers and a 150-m-long highly nonlinear fiber.
Ying Guo, Fengping Yan, Ting Feng, Qi Qin, Luna Zhang, Biao Guan, Wenguo Han, Zhuoya Bai, Hong Zhou, Yuping Suo   +9 more
doaj   +1 more source

Switchable Multi-Wavelength Thulium-Doped Fiber Laser Employing a Polarization-Maintaining Sampled Fiber Bragg Grating

IEEE Access, 2019
A continuous wave, switchable multi-wavelength, thulium-doped fiber laser (TDFL) with a polarization-maintaining sampled fiber Bragg grating (PM-SFBG) is proposed and demonstrated for the first time.
Luna Zhang, Fengping Yan, Ting Feng, Ying Guo, Qi Qin, Hong Zhou, Yuping Suo   +6 more
doaj   +1 more source

Continuous wave and modelocked femtosecond novel bulk glass lasers operating around 2000 nm [PDF]

, 2010
This thesis reports on the development of glass-based femtosecond laser sources around 2 µm wavelength. In order to be able to produce 2 µm radiation the dopants used were trivalent Thulium (Tm³⁺) and trivalent Holmium (Ho³⁺) that could be optically ...
Fusari, Flavio, Brown, C. T. A., C. T. A. Brown, F. Fusari, Lagatsky, A. A., Calvez, S., S. Calvez, Dawson, M. D., W. Sibbett, J.A. Gupta, G. Jose, A. Jha, M.D. Dawson, Fusari, F., Gupta, J. A., Sibbett, W., Jha, A., Jose, G., A. A. Lagatsky   +18 more
core   +1 more source