Lasing in thulium-doped polarizing photonic crystal fiber

    Authors

    N. Modsching; P. Kadwani; R. A. Sims; L. Leick; J. Broeng; L. Shah;M. Richardson

    Comments

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    Abbreviated Journal Title

    Opt. Lett.

    Keywords

    MU-M; SINGLE-FREQUENCY; LASER; AMPLIFIER; ENERGY; Optics

    Abstract

    We describe lasing of a thulium-doped polarizing photonic crystal fiber. A 4m long fiber with 50 mu m diameter core, 250 mu m diameter cladding, and d/Lambda ratio of 0.18 was pumped with a 793nm diode and produced a polarized output with a polarization extinction ratio ( PER) of 15 dB and an M(2) of < 1.15. An intracavity polarizer and half-wave plate minimally increased the PER to 16 dB. The output power had 35% slope efficiency relative to the absorbed pump power. The maximum cw output power was limited to 4W due to the quantum defect heating of the fiber. (C) 2011 Optical Society of America

    Journal Title

    Optics Letters

    Volume

    36

    Issue/Number

    19

    Publication Date

    1-1-2011

    Document Type

    Article

    Language

    English

    First Page

    3873

    Last Page

    3875

    WOS Identifier

    WOS:000295415600053

    ISSN

    0146-9592

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