DocumentCode :
65119
Title :
2- 
Tm-Doped All-Fiber Pulse Laser With Active Mode-Locking and Relaxation Oscillation Modulating
Author :
Xiong Wang ; Pu Zhou ; Xiaolin Wang ; Rumao Tao ; Lei Si
Author_Institution :
Coll. of Optoelectron. Sci. & Eng., Nat. Univ. of Defense Technol., Changsha, China
Volume :
5
Issue :
6
fYear :
2013
fDate :
Dec. 2013
Firstpage :
1502206
Lastpage :
1502206
Abstract :
We report on the actively mode-locked and relaxation-oscillation-modulated 2- μm all-fiber laser, using an electronic optical phase modulator with fiber pigtail. Linear-cavity and ring-cavity fiber lasers with Tm-doped fiber were set up with a center wavelength around 1.95 μm. Actively mode-locked stable pulse train was generated with a repetition rate of 11.884 MHz (linear cavity) and 12.099 MHz (ring cavity), and the duration of the pulse was 816 ps and 446 ps, respectively. The stable pulse train with a duration of 5.885 μs and a repetition rate of 4-18 kHz was generated by actively modulating the relaxation oscillation of the linear-cavity fiber laser. Similar results for the ring-cavity fiber laser were 1.554 μs and 6-26 kHz, respectively. All the stable pulse trains´ energy fluctuations were less than 7%.
Keywords :
fibre lasers; laser beams; laser cavity resonators; laser mode locking; laser stability; optical modulation; optical pulse generation; phase modulation; thulium; Tm-doped all-fiber pulse laser; actively mode-locked stable pulse train; electronic optical phase modulator; fiber pigtail; frequency 11.884 MHz; frequency 12.099 MHz; frequency 4 kHz to 26 kHz; linear-cavity fiber laser; relaxation oscillation modulation; repetition rate; ring-cavity fiber laser; stable pulse train energy fluctuations; time 446 ps; time 816 ps; wavelength 1.95 mum; wavelength 2 mum; Fiber lasers; Frequency modulation; Laser excitation; Laser mode locking; Optical fiber couplers; Pump lasers; Fiber lasers; infrared lasers; mode-locked lasers;
fLanguage :
English
Journal_Title :
Photonics Journal, IEEE
Publisher :
ieee
ISSN :
1943-0655
Type :
jour
DOI :
10.1109/JPHOT.2013.2285726
Filename :
6646190
Link To Document :
