Suppression of stimulated Brillouin scattering in optical fibers using a linearly chirped diode laser | Zendy

Jeffrey O. White | Zendy; Arseny Vasilyev | Zendy; James P. Cahill | Zendy; Naresh Satyan | Zendy; Olukayode Okusaga | Zendy; George Rakuljic | Zendy; Carl E. Mungan | Zendy; A. Yariv | Zendy

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Suppression of stimulated Brillouin scattering in optical fibers using a linearly chirped diode laser

Author(s) -

Jeffrey O. White,

Arseny Vasilyev,

James P. Cahill,

Naresh Satyan,

Olukayode Okusaga,

George Rakuljic,

Carl E. Mungan,

A. Yariv

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.20.015872

Subject(s) - brillouin scattering , optics , chirp , materials science , amplifier , laser diode , fiber laser , optical fiber , laser , diode , physics , optoelectronics , cmos

The output of high power fiber amplifiers is typically limited by stimulated Brillouin scattering (SBS). An analysis of SBS with a chirped pump laser indicates that a chirp of 2.5 × 10(15) Hz/s could raise, by an order of magnitude, the SBS threshold of a 20-m fiber. A diode laser with a constant output power and a linear chirp of 5 × 10(15) Hz/s has been previously demonstrated. In a low-power proof-of-concept experiment, the threshold for SBS in a 6-km fiber is increased by a factor of 100 with a chirp of 5 × 10(14) Hz/s. A linear chirp will enable straightforward coherent combination of multiple fiber amplifiers, with electronic compensation of path length differences on the order of 0.2 m.

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