Results 281 to 290 of about 6,116 (319)
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High-power all-fiberized thulium-doped fiber MOPA
Laser Physics Letters, 2013We demonstrate a high-power all-fiberized thulium-doped fiber laser in a master oscillator power amplifier (MOPA) architecture giving output powers up to 100.4 W. A large-mode-area double-clad active fiber is employed as the gain medium. The laser is pumped by pigtailed laser diodes (LD) with a central wavelength of 792 nm.
H B Lü +4 more
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Spectral hole burning measurement thulium-doped fiber amplifiers
Optics Letters, 2002An accurate technique was implemented to measure spectral hole burning in rare-earth amplifiers at room temperature, showing that thulium-doped fiber amplifiers exhibit hole depths four times lower than those of C -band erbium-doped fiber amplifiers.
Fabien, Roy +4 more
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Lasing in thulium-doped polarizing photonic crystal fiber
Optics Letters, 2011We describe lasing of a thulium-doped polarizing photonic crystal fiber. A 4 m long fiber with 50 μm diameter core, 250 μm diameter cladding, and d/Λ ratio of 0.18 was pumped with a 793 nm diode and produced a polarized output with a polarization extinction ratio (PER) of 15 dB and an M(2) of
Modsching N. +6 more
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Q-switched thulium-doped photonic crystal fiber laser
Optics Letters, 2012We report a novel, Tm-doped photonic crystal fiber (PCF) actively Q-switched oscillator that provides ~8.9 kW peak power with 435 µJ, 49 ns pulses at 10 kHz repetition rate at 2 μm wavelength. This fiber has a mode-field area >1000 μm2, the largest of any flexible PCF providing diffraction-limited beam quality to the best of our knowledge.
Pankaj, Kadwani +6 more
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Switchable multiwavelength thulium-doped fiber ring lasers
Optical Engineering, 2013Two kinds of thulium-doped fiber ring lasers based on a spatial mode beating filter and comb filtering effect are presented and experimen- tally demonstrated, which all show multiwavelength laser spectrum around 2 μm. In the implementation of the first type of experiment configuration by the use of a piece of multimode fiber (MMF) as a spatial mode ...
Shui Zhao +3 more
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Q-switched thulium-doped fiber laser
Optical Engineering, 1993A tunable Q-switched thulium-doped single-mode silica fiber laser is presented for the first time. Its performance is analyzed as a function of pulse repetition rate and pumping power. The optimization of laser parameters resulted in 4 W/1 30 ns, 1 .92-jrm wavelength pulses generated at a 4-kHz repetition rate. From the measured values of small- signal
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Fabrication of thulium-doped silica optical fiber
SPIE Proceedings, 1998In this article, we mainly describe the preparation of the silica optical fiber doped with rare earth ion Tm3+ by utilizing solution-doped technique, and the control of relevant parameters of the fiber. The control and the measurement method of dopantion concentration of Tm3+ have also been discussed.
Ling Ruan +5 more
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Mode-locked tunable thulium-doped fiber laser
SPIE Proceedings, 2017We report on an all-fiber, actively mode-locked, tunable, Thulium-doped, fiber laser based on a 20-GHz bandwidth electro-optic intensity modulator (EOM) and a voltage driven 2-μm, intra-cavity, fiber-coupled, Fabry-Perot tunable filter (FFP-TF). The repetition rate of output pulses was 47 MHz and the shortest measured output pulse width was 445 ps.
Wenyan Tian, Eric D. Park
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Linearly polarized thulium doped all-fiber laser
2015 11th Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2015We report an all-fiber, linearly polarized Thulium doped fiber laser operating at 1950 nm. In the experiment, as high as 14.2 Watts power is generated from the laser with slope efficiency of 48.4%.
Jiachen Wang, Sang Bae Lee, Kwanil Lee
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High Performance Ultrafast Thulium-Doped Fiber Lasers
2019 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC), 2019Ultrafast lasers that deliver intense femtosecond pulses at carrier wavelengths beyond the well-established emission bands of Yb- or Ti:Sa-based sources have become extremely popular drivers for scientific applications. It is widely known that the long wavelength is a key property to enable new strong-field experiments or to significantly improve ...
J. Limpert +5 more
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