Results 31 to 40 of about 4,005 (228)

High resolution fourier domain optical coherence tomography at 2 microns for painted objects [PDF]

, 2015
Optical Coherence Tomography has been successfully applied to the non-invasive imaging of subsurface microstructure of a variety of materials from biological tissues to painted objects of art.
Cheung, CS, Clarkson, WA, Daniel, JMO, Liang, H, Spring, M, Tokurakawa, M   +5 more
core   +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

Tm-Yb doped optical fiber performance with variation of host-glass composition [PDF]

, 2014
The fabrication process of Thulium-Ytterbium doped optical fiber comprising different host glass through the Modified Chemical Vapor Deposition (MCVD) coupled with solution doping technique is presented.
Das, Shyamal, Dhar, Anirban, Pal, Atasi, Sen, Ranjan   +3 more
core   +2 more sources

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

Advances in Lasers for the Treatment of Stones-a Systematic Review [PDF]

, 2018
PURPOSE OF REVIEW: Laser lithotripsy is increasingly used worldwide and is a continuously evolving field with new and extensive research being published every year.
Kronenberg, P, Somani, B
core   +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

Low noise all-fiber amplification of a coherent supercontinuum at 2 \mu m and its limits imposed by polarization noise [PDF]

, 2019
We report the amplification of an all-normal dispersion supercontinuum pulse in a Thulium / Holmium co-doped all-fiber chirped pulse amplification system.
Feurer, Thomas, Heidt, Alexander M., Hodasi, Joanna Modupeh, Klimczak, Mariusz, Rampur, Anupamaa, Ryser, Manuel, Spangenberg, Dirk-Mathys   +6 more
core   +3 more sources

Sub-kHz Narrow-Linewidth Single-Longitudinal-Mode Thulium-Doped Fiber Laser Utilizing Triple-Coupler Ring-Based Compound-Cavity Filter

Photonics, 2023
This paper proposes and demonstrates a single-longitudinal-mode thulium-doped fiber laser using a passive triple-coupler ring-based compound-cavity filter (TCR-CC) and a uniform fiber Bragg grating. For the first time, the TCR-CC filter is used to select
Biao Guan, Fengping Yan, Dandan Yang, Qi Qin, Ting Li, Chenhao Yu, Xiangdong Wang, Kazuo Kumamoto, Yuping Suo   +8 more
doaj   +1 more source

Emission Wavelength Limits of a Continuous-Wave Thulium-Doped Fiber Laser Source Operating at 1.94 µm, 2.09 µm or 2.12 µm

Photonics
We present a thulium-doped single-oscillator monolithic fiber laser emitting successively at three wavelengths, especially at unusual long wavelengths as 2.09 µm and even at 2.12 µm.
Christophe Louot, Félix Sanson, Arnaud Motard, Thierry Ibach, Inka Manek-Hönninger, Antoine Berrou, Nicolas Dalloz, Thierry Robin, Benoit Cadier, Anne Hildenbrand-Dhollande   +9 more
doaj   +1 more source

Repetition-Rate-Switchable and Self-Mode-Locked Pulses Generation From a Gain-Switched Thulium-Doped Fiber Laser and Their Amplification Properties

IEEE Photonics Journal, 2017
We report on repetition-rate-switchable and self-mode-locked pulses generation from a gain-switched thulium-doped fiber laser. Stable pulse trains were gain-switched by a home-made, pulsed Erbium/Ytterbium codoped fiber amplifier.
Deqin Ouyang, Junqing Zhao, Zhijian Zheng, Minqiu Liu, Shuangchen Ruan, Jihong Pei   +5 more
doaj   +1 more source