Title :
Graphene-Based
-Switched Erbium-Doped Fiber Laser With Wide Pulse-Repetition-Rate Range
Author :
Wei, Li ; Zhou, Da-Peng ; Fan, Helen Y. ; Liu, Wing-Ki
Author_Institution :
Dept. of Phys. & Comput. Sci., Wilfrid Laurier Univ., Waterloo, ON, Canada
Abstract :
We demonstrated a novel graphene Q-switched erbium-doped fiber laser with wide pulse-repetition-rate range. The Q-switched fiber laser is constructed with a 37-cm linear cavity formed by two fiber Bragg gratings, a section of highly doped erbium fiber, and a graphene saturable absorber. The laser has a low pump threshold of 16.9 mW, a wide range of repetition rate from 31.7 to 236.3 kHz, and minimum pulse duration of 206 ns. The short-cavity laser structure enables laser action free of self-mode-locking effects.
Keywords :
Bragg gratings; Q-switching; erbium; fibre lasers; graphene; laser cavity resonators; laser mode locking; optical saturable absorption; C; fiber Bragg gratings; frequency 31.7 kHz to 236.3 kHz; graphene saturable absorber; graphene-based Q-switched erbium-doped fiber laser; linear cavity; power 16.9 mW; self-mode-locking; short-cavity laser; size 37 cm; wide pulse-repetition-rate; Cavity resonators; Erbium-doped fiber lasers; Laser excitation; Laser mode locking; Optical fibers; Pump lasers; $Q$ -switched erbium-doped fiber laser (EDFL); graphene; wide pulse-repetition-rate range;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2178821