DocumentCode :
1759900
Title :
Diode-Pumped Passively Mode-Locked Tm: 
Laser at 2- 
Wavelength
Author :
Zhipeng Qin ; Guoqiang Xie ; Lingchen Kong ; Peng Yuan ; Liejia Qian ; Xiaodong Xu ; Jun Xu
Author_Institution :
Dept. of Phys. & Astron., Shanghai Jiao Tong Univ., Shanghai, China
Volume :
7
Issue :
1
fYear :
2015
fDate :
Feb. 2015
Firstpage :
1
Lastpage :
5
Abstract :
We report on a diode-pumped passively mode-locked picosecond Tm:CaGdAlO4 (Tm:CALGO) laser using a semiconductor saturable absorber mirror as the mode locker. With Tm:CALGO disordered crystal as gain medium, the mode-locked laser generated pulses with pulse duration of 27 ps, repetition rate of 128.6 MHz, and maximum average power of 330 mW at 1949.5 nm. To the best of our knowledge, this is the first demonstration of a mode-locked Tm:CALGO disordered crystal laser. The continuous-wave (CW) laser performance of Tm:CALGO was also investigated, and the maximum CW power was 730 mW. Our research results show that Tm:CALGO crystal is an excellent bulk medium for picosecond pulse generation at 2-μm wavelength.
Keywords :
calcium compounds; gadolinium compounds; laser mirrors; laser mode locking; optical pulse generation; optical pumping; optical saturable absorption; solid lasers; thulium; CaGdAlO4:Tm; continuous-wave laser performance; diode-pumped passively mode-locked laser; disordered crystal; frequency 128.6 MHz; gain medium; maximum average power; picosecond laser; picosecond pulse generation; power 330 mW to 730 mW; pulse duration; repetition rate; semiconductor saturable absorber mirror; time 27 ps; wavelength 2 mum to 1949.5 nm; Crystals; Laser excitation; Laser mode locking; Mirrors; Optimized production technology; Pump lasers; Semiconductor lasers; Laser diode; mode-locked; picosecond laser; semiconductor saturable absorber mirror;
fLanguage :
English
Journal_Title :
Photonics Journal, IEEE
Publisher :
ieee
ISSN :
1943-0655
Type :
jour
DOI :
10.1109/JPHOT.2014.2381638
Filename :
6987220
Link To Document :
