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

Author

Hailong Yu ; Xiaolin Wang ; Pu Zhou ; Xiaojun Xu ; Jinbao Chen

Author_Institution

Coll. of Optoelectron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China

Volume

27

Issue

7

fYear

2015

fDate

April1, 1 2015

Firstpage

737

Lastpage

740

Abstract

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.

Keywords

fibre lasers; laser cavity resonators; laser mode locking; laser stability; laser tuning; optical fibre dispersion; optical fibre polarisation; optical pulse generation; optical pumping; optical rotation; optical solitons; ytterbium; DSR region; all-normal-dispersion passively mode-locked Yb-doped fiber laser; dissipative soliton resonance condition; energy 34 nJ; frequency 1.86 MHz; fundamental cavity repetition rate; high-energy square pulses; multistability; nonlinear polarization rotation technique; output average power; power 62.1 mW; pulse energy; pump power; square pulse generation; wave-breaking-free output square pulses; Cavity resonators; Erbium-doped fiber lasers; Laser mode locking; Optical fiber amplifiers; Optical fiber dispersion; Optical fiber polarization; Fiber lasers; dissipative soliton resonance; square pulses; wave-breaking-free;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2390911

Filename

7014275