High Power Coherent Addition in an Improved Michelson Cavity

Author

Peng, Qinjun ; Cui, Dafu ; Bo, Yong ; Yang, Xiaodong ; Xu, Zuyan

Author_Institution

Inst. of Phys., Chinese Acad. of Sci., Beijing

fYear

2006

fDate

June 29 2006-July 1 2006

Firstpage

8

Lastpage

14

Abstract

The coherent combining with an output power of 41.5 W for two side-pumped Nd:YAG lasers was demonstrated by use of an improved Michelson cavity (IMC). And the coherent combining efficiency exceeded 80% and the beam quality was significantly improved. What is more, it can directly realize a single beam output after coherent combining. Moreover, it can withstand environmental perturbations without alteration in beam quality and output power. The experiment showed an efficient approach for high power coherent combining by use of the IMC. At last, the further development for the high-power IMC coherent addition was discussed in detail. It is possible to develop an ultra-high power (e.g. 100 kW-class) laser system by the IMC coherent addition technique

Keywords

laser beams; laser cavity resonators; light coherence; optical pumping; solid lasers; 41.5 W; Nd:YAG lasers; YAG:Nd; YAl5O12:Nd; beam quality; coherent combining; environmental perturbations; high power coherent addition; improved Michelson cavity; side-pumped lasers; ultrahigh power laser; Fiber lasers; Laser beams; Laser excitation; Laser theory; Optical distortion; Optical fiber couplers; Power generation; Power lasers; Pump lasers; Solid lasers; Michelson cavity; Nd:YAG; coherent combining; side pumping;

fLanguage

English

Publisher

ieee

Conference_Titel

Laser and Fiber-Optical Networks Modeling, 8-th International Conference on

Conference_Location

Kharkiv

Print_ISBN

1-4244-0233-6

Electronic_ISBN

1-4244-0234-4

Type

conf

DOI

10.1109/LFNM.2006.252099

Filename

4018318