Fundamental mode operation of a ribbon fiber laser by way of volume Bragg gratings

    Authors

    B. Anderson; G. Venus; D. Ott; I. Divliansky; J. W. Dawson; D. R. Drachenberg; M. J. Messerly; P. H. Pax; J. B. Tassano;L. B. Glebov

    Comments

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    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    OPTICAL PARAMETRIC OSCILLATOR; HIGH-ORDER MODE; NARROW-BAND; POWER; Optics

    Abstract

    Selection of the fundamental mode of an active large mode area "ribbon" fiber laser with core dimensions of 107.8 mu m by 8.3 mu m was produced by a transmitting Bragg grating (TBG) in a free-space resonator. The multimode performance of the original laser was characterized to have an M-2 of 11.3 with an absorbed power slope efficiency of 76%. With the TBG aligned to provide maximum diffraction efficiency for the fundamental mode, the M-2 improved to 1.45 at an absorbed power slope efficiency of 54% and enhanced the brightness by 5.1 times. (C) 2014 Optical Society of America.

    Journal Title

    Optics Letters

    Volume

    39

    Issue/Number

    22

    Publication Date

    1-1-2014

    Document Type

    Article

    Language

    English

    First Page

    6498

    Last Page

    6500

    WOS Identifier

    WOS:000344986000036

    ISSN

    0146-9592

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