DocumentCode :
85480
Title :
2.4-W Narrow-Linewidth Q-Switched 
-Doped Double-Clad Fiber Laser
Author :
Qijie Huang ; Ting Yu ; Yameng Zheng ; Jifeng Zu ; Weibiao Chen
Author_Institution :
Res. Center of Space Laser Inf. Technol., Grad. Univ. of Chinese Acad. of Sci., Shanghai, China
Volume :
5
Issue :
2
fYear :
2013
fDate :
Apr-13
Firstpage :
1500406
Lastpage :
1500406
Abstract :
A narrow-linewidth 793-nm diode-pumped Tm3+ -doped double-clad silica fiber laser operated at 2 μm and actively Q-switched with an acousto-optic modulator is reported. Using a fiber Bragg grating as an output coupler, approximately 0.1-nm linewidth at 1996.8-nm pulses is derived at 80-kHz repetition rate. The maximum average output power is above 2 W for 11.6-W absorbed pump power. Less than 150-ns pulse is obtained at the repetition rate of 30 kHz. The laser is a promising seed laser for amplification in a master oscillator power amplifier system.
Keywords :
Bragg gratings; Q-switching; acousto-optical modulation; fibre lasers; optical pumping; power amplifiers; spectral line narrowing; acousto-optic modulator; diode pumped double clad silica fiber laser; double clad fiber laser; fiber Bragg grating; frequency 30 kHz; frequency 80 Hz; master oscillator power amplifier system; narrow linewidth Q-switching; power 11.6 W; power 2.4 W; seed laser; wavelength 1996.8 nm; wavelength 2 mum; wavelength 793 nm; Fiber lasers; Laser theory; Optical fiber amplifiers; Optical fiber communication; Optical fiber couplers; Optical fiber polarization; Pump lasers; $hbox{Tm}^{3+}$
fLanguage :
English
Journal_Title :
Photonics Journal, IEEE
Publisher :
ieee
ISSN :
1943-0655
Type :
jour
DOI :
10.1109/JPHOT.2013.2251875
Filename :
6476620
Link To Document :
