Mode locked and Q modulation switched Yb3+ doped ring cavity fiber laser with low pump power

xiang wang-hua; cui yu; liu hao; ren kai; li nan; gan yu; zhou xiao fang; zhang gui-zhong

Volume 19 Issue 10

Oct. 2007

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xiang wang-hua, cui yu, liu hao, et al. Mode locked and Q modulation switched Yb3+ doped ring cavity fiber laser with low pump power[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

xiang wang-hua, cui yu, liu hao, et al. Mode locked and Q modulation switched Yb3+ doped ring cavity fiber laser with low pump power[J]. High Power Laser and Particle Beams, 2007, 19.

xiang wang-hua, cui yu, liu hao, et al. Mode locked and Q modulation switched Yb3+ doped ring cavity fiber laser with low pump power[J]. High Power Laser and Particle Beams, 2007, 19.

Citation:

xiang wang-hua, cui yu, liu hao, et al. Mode locked and Q modulation switched Yb3+ doped ring cavity fiber laser with low pump power[J]. High Power Laser and Particle Beams, 2007, 19.

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Mode locked and Q modulation switched Yb3+ doped ring cavity fiber laser with low pump power

1.
College of Precision Instrument and Optoelectronics Engineering Key Laboratory,Optoelectronics Information and Technical Science Ministry of Education,Tianjin University,Tianjin 300072,China

Publish Date: 2007-10-15

Abstract

Abstract

The experimental study of a passive mode locked Yb3+ doped fiber laser was reported, which utilized a 8 shaped ring cavity with semiconductor saturable absorber mirror(SESAM) as well as the polarizer and polarization controllers. Combining the effect of non-linear polarization rotation with the self starting of SESAM, stable operations of Q switched and CW mode locked regime at the low pump power were achieved. When the pump power was 18 mW, the Q switched pulse with a repetition of 16 kHz, a pulse width of 4 μs ,and an output spectrum width of 2.34 nm was obtained. When the pump power was 60 mW, the output power of mode locked pulses was 8 mW, the repetition was 20 MHz, the output spectrum width was 3.54 nm, and the pulse width was ps or sub ps orders. The tunable phenomenon with proper
- fiber laser,
- passive modelocked,
- ring cavity,
- semiconductor saturable absorber mirror,
- qmodulation

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