Results 21 to 30 of about 9,667 (268)
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 +7 more
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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 +6 more
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Tunable 30W all-fiber laser emitting around 1850 nm [PDF]
EPJ Web of ConferencesWe 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 +4 more
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Isolator-free unidirectional thulium-doped fiber laser [PDF]
Light: Science & Applications, 2015 We report the first demonstration of a unidirectional, isolator-free 2-mmthulium-doped fiber (TDF) laser, relying on the properties of the theta cavity (ring resonator with S-shaped feedback). The core pumped theta cavity TDF laser provides sub-Watt output power with a slope efficiency of 25%, a 2 dB flat tuning range of 1900–2050 nm, and a linewidth ...
Svyatoslav Kharitonov +1 more
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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 +8 more
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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 +9 more
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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 +6 more
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Fiber design for high-power low-cost Yb:Al-doped fiber laser operating at 980nm [PDF]
, 2007 We investigated an Yb:Al-doped depressed-clad hollow optical fiber (DCHOF) for cladding-pumped 980nm laser operation. With a careful design, the nonzero fundamental-mode cutoff characteristics of a DCHOF allows the competing 1030-1060nm emission to be ...
Kim, J. +4 more
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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 +8 more
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High power tandem-pumped thulium-doped fiber laser
Optics Express, 2015 We propose a cascaded tandem pumping technique and show its high power and high efficient operation in the 2-μm wavelength region, opening up a new way to scale the output power of the 2-μm fiber laser to new levels (e.g. 10 kW). Using a 1942 nm Tm(3+) fiber laser as the pump source with the co- (counter-) propagating configuration, the 2020 nm Tm(3 ...
Yao, Wang +6 more
openaire +2 more sources