Results 181 to 190 of about 4,005 (228)
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Thulium-doped ZBLAN fiber laser
SPIE Proceedings, 1999The thulium-doped ZBLAN fiber laser is emitting visible radiation through an upconversion process which allows for the generation of hundreds of milliwatts of output power at 480 nm. The main features of this laser are presented and analyzed on the basis of an equation rate analysis.
Pierre Laperle +2 more
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Bidirectional mode-locked thulium-doped fiber laser
Applied Optics, 2018We report a bidirectional mode-locked thulium-doped fiber laser. Mode-locking is enabled by the combination of semiconductor saturable absorption and nonlinear polarization rotation. Two stable mode-locked picosecond pulse trains in opposite directions are generated with a fundamental repetition rate of ∼16.57 MHz.
Nurmemet Abdukerim +3 more
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Thulium-doped optical fibers for fiber lasers
Photonics, Devices, and Systems VII, 2017We present preparation and characterization of thulium-doped silica-based optical fibers for fiber lasers. The fibers were prepared by modified chemical vapor deposition process and doped with alumina and thulium ions. Alumina co-doping was achieved through two different methods – solution doping and nanoparticle doping method.
Ivan Kašík +8 more
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High Power Thulium Doped Fiber Lasers
Optical Fiber Communication Conference and National Fiber Optic Engineers Conference, 2009Thulium-doped silica fiber lasers and amplifiers offer a route to very high average power in the two-micron wavelength regime. This presentation reviews recent progress and considers the prospects for further improvement in performance.
W. A. Clarkson +7 more
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Tunable thulium-doped all-fiber laser
IEEE Photonics Technology Letters, 1998We demonstrate a tunable thulium-doped fiber ring laser wherein a single fused coupler acts simultaneously as the wavelength-division multiplexing for pump radiation, a lasing wavelength selective element, and output mirror. Temperature tuning of up to 2 nm//spl deg/C over a range of 40 nm and polarization tuning of over 100 nm within the spectral ...
R.L. Shubochkin +3 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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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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Scaling Bottlenecks in Thulium-doped Fiber Lasers
Frontiers in Optics 2013, 2013Thulium offers novel applications at 2 μm, and with continued developments, peak and average powers will increase to that of rival rare-earth dopants. Limitations that impede growth are namely; nonlinearities, thermal management, and fiberized components.
Alex Sincore +5 more
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