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

    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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