Share Email Print
cover

Proceedings Paper

Modeling analysis of a passive coherent beam combining using fused-taper fiber laser arrays
Author(s): Jie Li; Wei Li; Jianqiu Cao; Zilun Chen; Hang Zhou
Format Member Price Non-Member Price
PDF $14.40 $18.00

Paper Abstract

Passive coherent beam combining, which uses optical feedback from the fibers to force all to lock in phase, seems to be a promising way for high power output. Fused-taper fiber laser array is one of the passive methods, in which phase locking is realized by mutual energy coupling, without any active phase control. In this paper, we use a dynamical model to express phase-locking evolution of the fused-taper fiber laser array theoretically. In the numerical analysis of 3- and 7- fused-taper fiber arrays, we start the simulations beginning with each laser in an off-state, that is, the initial electric fields are chosen at random of order 0.1 and the phases are uniformly distributed. The results show that the array can achieve a relative in-phase state. The coupling degree varies with the distance between the two neighbor fibers. The simulations also show that the fiber grating reflectivity, the pumping parameters and the coupling length have significant effect on the stability of the coherent combing.

Paper Details

Date Published: 20 August 2011
PDF: 7 pages
Proc. SPIE 8192, International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging, 81922F (20 August 2011); doi: 10.1117/12.900594
Show Author Affiliations
Jie Li, National Univ. of Defense Technology (China)
Wei Li, China South Industry Academy (China)
Jianqiu Cao, National Univ. of Defense Technology (China)
Zilun Chen, National Univ. of Defense Technology (China)
Hang Zhou, National Univ. of Defense Technology (China)


Published in SPIE Proceedings Vol. 8192:
International Symposium on Photoelectronic Detection and Imaging 2011: Laser Sensing and Imaging; and Biological and Medical Applications of Photonics Sensing and Imaging
Farzin Amzajerdian; Weibiao Chen; Chunqing Gao; Tianyu Xie, Editor(s)

© SPIE. Terms of Use
Back to Top