Share Email Print
cover

Proceedings Paper

Investigations on fibers for high-peak power pulsed Nd:YAG-lasers for laser detonator
Author(s): Yang Gao; Xing-hai Zhao; Wei Su; Yong-sheng Cheng; Mei-jian Xu; Wen-tao Duan; Hai-wu Yu
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

For laser detonator application, high-peak power pulsed Nd:YAG laser is transmitted through all-silica optical fiber. The transmission properties of step-index fibers are investigated, using a high-peak power pulsed Nd: YAG rod laser with beyond 1MW power and Q-switch mode. The fibers are step-index multimode fibers with 400 or 600 μm core diameters, 440 or 660 μm cladding diameters. The power delivery characteristics were studied by theory and experiments. The results show that the fiber core diameter, NA, length and so on affect the transmission efficiency for high power laser. When the laser power is beyond a certain threshold, the SRS and SBS will be serious; the quantity of fiber end-face limits to the raising of laser power passing through fibers; the zero-probability damage threshold is calculated according to ISO/DIS standard 11254-1.2, which is 58.6J/cm2. Energy distribution of output beam from fibers will be uniform. Even the fiber end-face was partly damaged, laser power is still deliverable, and the transmission efficiency is related to the fiber damage grade.

Paper Details

Date Published: 16 April 2008
PDF: 7 pages
Proc. SPIE 6998, Solid State Lasers and Amplifiers III, 69981C (16 April 2008); doi: 10.1117/12.779701
Show Author Affiliations
Yang Gao, China Academy of Engineering Physics (China)
Xing-hai Zhao, China Academy of Engineering Physics (China)
Wei Su, China Academy of Engineering Physics (China)
Yong-sheng Cheng, China Academy of Engineering Physics (China)
Mei-jian Xu, China Academy of Engineering Physics (China)
Wen-tao Duan, China Academy of Engineering Physics (China)
Hai-wu Yu, China Academy of Engineering Physics (China)


Published in SPIE Proceedings Vol. 6998:
Solid State Lasers and Amplifiers III
Jonathan A. Terry; Thomas Graf; Helena Jelínková, Editor(s)

© SPIE. Terms of Use
Back to Top