Compact vertically stacked master oscillator power amplifier based on grating coupled laser diodes

    Authors

    O. V. Smolski; J. K. O'Daniel;E. G. Johnson

    Comments

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    Abbreviated Journal Title

    IEEE Photonics Technol. Lett.

    Keywords

    integrated optoelectronics; optical coupling; semiconductor lasers; semiconductor optical amplifiers (SOAs); SURFACE-EMITTING LASER; Engineering, Electrical & Electronic; Optics; Physics, Applied

    Abstract

    A new design of hybrid master oscillator power amplifier (MOPA) has been proposed and realized by vertically stacking laser diodes with optical coupling provided by identical in-plane integrated gratings. Low beam divergence, large emitting and input areas of the grating coupled devices simplify the assembling technique over the fabrication of MOPA devices based on edge-emitting laser diodes. The master oscillator also incorporates a dual-grating reflector providing a wavelength-selective feedback resulting in a narrow emission spectrum of 0.2 nm at a wavelength of 975.4 nm. The power amplifier is a tapered chip with two integrated grating couplers. The operational characteristics of the MOPA were evaluated in the pulse regime demonstrating an output peak power of 32 W with a total amplification factor of 9.3 dB.

    Journal Title

    Ieee Photonics Technology Letters

    Volume

    18

    Issue/Number

    17-20

    Publication Date

    1-1-2006

    Document Type

    Article

    Language

    English

    First Page

    1931

    Last Page

    1933

    WOS Identifier

    WOS:000241438300046

    ISSN

    1041-1135

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