Title :
A Quasi-Three-Level Acousto-Optics (AO) Q-Switched Yb-Doped Double Clad Photonic Crystal Fiber Laser
Author :
Li, Pingxue ; Chi, Junjie ; Yang, Chun ; Zhao, Ziqiang ; Liu, Zhi ; Zhang, Xuexia ; Zhong, Guoshun ; Li, Yao ; Wang, Xiongfei ; Zhao, Hong ; Jiang, Dongsheng
Author_Institution :
Inst. of Laser Eng. Beijing, China Beijing Univ. of Technol., Beijing, China
Abstract :
We demonstrate a acousto-optics (AO) Q-switched 980 nm Yb-doped photonic crystal fiber (PCF) laser, which generated an average output power of 731 mW from single end of the fiber when the fiber length was 30 cm. The laser pulse of 40 ns and pulse repetition frequency of 6 kHz was detected. This Q-switched 980 nm PCF laser reached a peak power of 3 kW. The linewidth of the laser was 3.5 nm arranging from 977 nm to 980.5 nm. A fiber coupled diode laser with the center wavelength of 915 nm was used as the pump source for the 980 nm pulsed PCF laser.
Keywords :
Q-switching; acousto-optical devices; fibre lasers; holey fibres; optical fibre cladding; optical pulse generation; optical pumping; photonic crystals; spectral line breadth; ytterbium; average output power; center wavelength; fiber coupled diode laser; fiber length; frequency 6 kHz; laser linewidth; laser pulse repetition frequency; power 3 kW; power 731 mW; pulsed AO PCF laser; pump source; quasithree-level acousto-optics Q-switched Yb-doped double clad photonic crystal fiber laser; size 30 cm; wavelength 915 nm; wavelength 977 nm to 980.5 nm; Fiber lasers; Laser excitation; Optical fiber amplifiers; Power amplifiers; Power generation; Power lasers; Pump lasers;
Conference_Titel :
Photonics and Optoelectronics (SOPO), 2012 Symposium on
Conference_Location :
Shanghai
Print_ISBN :
978-1-4577-0909-8
DOI :
10.1109/SOPO.2012.6271122
