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In this paper, we demonstrate a dual-wavelength mode-locked thulium-doped fiber laser. The single-wall carbon nanotube is used as the mode-locker due to its large and ultrafast nonlinear optical responses. By tuning the pump power and adjusting the PC properly, stable dual-wavelength output can be achieved. The center wavelength of the dual-wavelength pulses are 1894 nm and 1907 nm, respectively....
We report on a 200W, 2mJ, 25ns MOPA fiber laser, the last stage of which has a hybrid gain fiber composed of large-core-diameter and small-core diameter Yb doped fibers.
A linearly polarized Q-switching large-mode-area photonic crystal fiber laser at 978 nm is demonstrated. Short pulse of 14 ns duration is achieved with 36 dB polarization extinction ratio at 10 kHz repetition rate and 2 W output power.
We report our recent works on suppression of stimulated-Brillouin-scattering in high power, single frequency, linearly polarized, 1178 nm Raman fiber amplifiers and 1064 nm ytterbium-doped fiber amplifiers by applying longitudinally varied strain in the gain fibers.
Ho:YAG laser is widely used in medical area. Double laser rods system can effectively improve the Ho:YAG laser output power. Holmium laser cavity length and the transmittance of the laser resonator mirrors make great influence on the output power . In the particle, simulate the design of the laser. Integrated optimization of various parameters which affecting the laser output efficiency to make it...
An all-fiber pulsed laser based on master-oscillator power amplifier (MOPA) architecture is demonstrated. At pulse repetition rate of 100 kHz, amplified laser with output power of 2.3 W, pulse width of 10 ns is generated.
The Beam quality of multimode fiber lasers is studied. Coiling technique is ineffective for fibers with too large core diameter or NA. The influence of coiling on the performance of fiber lasers is discussed.
The change of pulse shape in a MOFPA system was experimentally demonstrated. Through optimized the pulse shape, the amplifier can provide 59-W 1064 nm laser with pulse duration of 22.7 ns at 50 kHz repetition rate.
KW level CW high power output and 20 W high repetition rate pulsed output are obtained with China made multimode core fibers. The laser structure and pulse amplifier technology are given in detail.
KW level CW high power output and 150 W high repetition rate pulsed output are obtained with China made multimode core fibers. The laser structure and pulse amplifier technology are given in detail.
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