Curved Waveguide Array Diode Lasers for High-Brightness Applications

Author

Elarde, C. ; Tobin, K.E. ; Price, R.K. ; Verma, V.B. ; Coleman, J.J.

Author_Institution

Dept. of Electr. & Comput. Eng., Illinois Univ., Urbana, IL

Volume

20

Issue

13

fYear

2008

fDate

7/1/2008 12:00:00 AM

Firstpage

1085

Lastpage

1087

Abstract

We have developed a novel structure for achieving high-brightness output from a semiconductor laser array using coherent spatial beam combination. The structure consists of an array of curved ridge waveguides with in-phase, coherent output. Interference of the multiple outputs leads to a narrow, bright, on-axis, far-field beam shape. Experimental results demonstrate a diffraction limited output beam width, ideal for high-brightness applications.

Keywords

brightness; ridge waveguides; semiconductor laser arrays; waveguide lasers; coherent spatial beam combination; curved ridge waveguides; diffraction limited output beam width; far-field beam shape; high-brightness output; semiconductor laser array; waveguide array diode lasers; Diode lasers; Interference; Laser beams; Optical arrays; Optical coupling; Optical waveguides; Phased arrays; Semiconductor laser arrays; Semiconductor waveguides; Waveguide lasers; Coherent array; high-brightness; semiconductor laser; spatial beam combination;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2008.924299

Filename

4531623