Theoretical and experimental research of lens duct as coupling system for LDA

Author

Xiaojuan, Liu ; Shenggui, Fu

Author_Institution

School of Science, Shandong University of Technology, Zibo China. 255049

Volume

2009-Supplement

fYear

2009

fDate

2-6 Nov. 2009

Firstpage

1

Lastpage

7

Abstract

The optimum parameters´ expressions of the lens duct are theoretically deduced with the help of numerical analysis of ray tracing. Based on the theoretical analysis, we simulated the rays´ transmission trace in the duct and calculated the intensity distribution of the output beam. The influence of the parameter´ s value on coupling efficiency is also analyzed in the paper. With the optimum parameters lens duct, we implemented the coupling experiment. A smooth and symmetric beam with high quality is obtained. The coupling efficiency of the lens duct is larger than 91%. The experimental results agree well with the theoretical analysis. More important, the duct´ s coupling efficiency is better than the results reported previously.

Keywords

Ducts; Laser beams; Laser theory; Lenses; Linear discriminant analysis; Optical arrays; Optical coupling; Pump lasers; Ray tracing; Semiconductor laser arrays; coupling efficiency; laser diode array; laser technique; lens duct;

fLanguage

English

Publisher

ieee

Conference_Titel

Communications and Photonics Conference and Exhibition (ACP), 2009 Asia

Conference_Location

Shanghai, China

Print_ISBN

978-1-55752-877-3

Electronic_ISBN

978-1-55752-877-3

Type

conf

Filename

5405269