Title

High brightness spectral beam combination of high-power vertical-external-cavity surface-emitting lasers

Authors

Authors

Y. Kaneda; L. Fan; T. C. Hsu; N. Peyghambarian; M. Fallahi; A. R. Zakharian; J. Hader; J. V. Moloney; W. Stoltz; S. Koch; R. Bedford; A. Sevian;L. Glebov

Comments

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Abbreviated Journal Title

IEEE Photonics Technol. Lett.

Keywords

semiconductor laser; spectral combination; vertical-external-cavity; surface-emitting laser (VECSEL); volume Bragg grating (VBG); Engineering, Electrical & Electronic; Optics; Physics, Applied

Abstract

High brightness spectral beam combination of two high-power vertical-external-cavity surface-emitting laser (VECSEL) using volume Bragg grating in a photo-thermo-refractive (PTR) glass is demonstrated. High efficiency beam combination in excess of 90% is achieved, providing an efficient method for power scaling of diffraction limited beam. The beam quality of each starting lasers was 1.68 and 1.35, and that of combined beam was 1.9. Scaling opportunities based on the parameters of VECSELs and PTR Bragg gratings are discussed.

Journal Title

Ieee Photonics Technology Letters

Volume

18

Issue/Number

17-20

Publication Date

1-1-2006

Document Type

Article

Language

English

First Page

1795

Last Page

1797

WOS Identifier

WOS:000241438300001

ISSN

1041-1135

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