Share Email Print

Proceedings Paper

Pseudo-random binary sequency phase modulation in high power Yb-doped fiber amplifiers
Author(s): Craig Robin; Iyad Dajani; Clint Zernigue; Angel Flores; Ben Pulford; Ann Lanari; Shadi Naderi
Format Member Price Non-Member Price
PDF $17.00 $21.00

Paper Abstract

We present experimental and theoretical studies on the stimulated Brillouin scattering (SBS) threshold in fiber amplifiers seeded with a spectrally broadened single-frequency laser source. An electro-optic phase modulator is driven with various pseudo-random binary sequence (PRBS) patterns to highlight the unique characteristics of this linewidth broadening technique and its facility in SBS mitigation. Theoretical predictions show a variation in SBS suppression based on PRBS pattern and modulation frequency. These predictions are experimentally investigated in a kilowatt level monolithic fiber amplifier operating with near diffraction-limited beam quality. We also show Rayleigh scattering and other sources of back reflected light in phase modulated signals can seed the SBS process and significantly reduce the nonlinear threshold.

Paper Details

Date Published: 22 March 2013
PDF: 9 pages
Proc. SPIE 8601, Fiber Lasers X: Technology, Systems, and Applications, 86010Z (22 March 2013); doi: 10.1117/12.2004486
Show Author Affiliations
Craig Robin, Air Force Research Lab. (United States)
Iyad Dajani, Air Force Research Lab. (United States)
Clint Zernigue, ZModDynamics LLC (United States)
Angel Flores, Air Force Research Lab. (United States)
Ben Pulford, Air Force Research Lab. (United States)
Ann Lanari, Air Force Research Lab. (United States)
Shadi Naderi, Air Force Research Lab. (United States)

Published in SPIE Proceedings Vol. 8601:
Fiber Lasers X: Technology, Systems, and Applications
Sami T. Hendow, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?