TEM_00 mode content of a two stage single-frequency Yb-doped PCF MOPA with 246 W of output power | Zendy

Malte Karow | Zendy; Chandrajit Basu | Zendy; Dietmar Kracht | Zendy; Jörg Neumann | Zendy; P. Weßels | Zendy

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TEM_00 mode content of a two stage single-frequency Yb-doped PCF MOPA with 246 W of output power

Author(s) -

Malte Karow,

Chandrajit Basu,

Dietmar Kracht,

Jörg Neumann,

P. Weßels

Publication year - 2012

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.20.005319

Subject(s) - optics , materials science , laser beam quality , amplifier , fiber laser , laser , photonic crystal fiber , single mode optical fiber , polarization (electrochemistry) , mode field diameter , optoelectronics , optical fiber , polarization maintaining optical fiber , physics , laser beams , fiber optic sensor , chemistry , cmos

Gravitational wave detectors require linearly polarized single-frequency laser sources with a high fractional TEM 00 mode content. We investigated the modal decomposition of a polarization maintaining photonic crystal fiber with a mode field diameter of 29 µm, operating in a single-frequency master-oscillator power-amplifier scheme, with respect to the TEM nm modes. Low degradation of the beam quality with increasing pump power could be observed, while a maximum power in the TEM 00 mode of 203 W was achieved.

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