High-Energy Square Pulses in a Mode-Locked Yb-Doped Fiber Laser Operating in DSR Region

We report the experimental observation of high-energy square pulses in all-normal-dispersion passively mode-locked Yb-doped fiber laser under dissipative soliton resonance (DSR) condition using a nonlinear polarization rotation technique. The generated square pulses are mode locked with fundamental...

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Bibliographic Details
Published in:IEEE photonics technology letters 2015-04, Vol.27 (7), p.737-740
Main Authors: Yu, Hailong, Wang, Xiaolin, Zhou, Pu, Xu, Xiaojun, Chen, Jinbao
Format: Article
Language:English
Subjects:
Cavity resonators
dissipative soliton resonance
Erbium-doped fiber lasers
Fiber lasers
Laser mode locking
Optical fiber amplifiers
Optical fiber dispersion
Optical fiber polarization
square pulses
wave-breaking-free
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Summary:We report the experimental observation of high-energy square pulses in all-normal-dispersion passively mode-locked Yb-doped fiber laser under dissipative soliton resonance (DSR) condition using a nonlinear polarization rotation technique. The generated square pulses are mode locked with fundamental cavity repetition rate of 1.86 MHz. The maximum output average power and the corresponding pulse energy are 62.1 mW and 34 nJ, respectively. The output square pulses are wave-breaking-free and can be tuned in pulsewidth from hundreds of picoseconds to several nanoseconds by changing the pump power. The multistability of DSR in all-normal-dispersion cavity has been first demonstrated in experiment, which is in agreement with theoretical prediction. The observed experimental results will enhance the understanding of fundamental physics of DSR phenomenon.
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2015.2390911