Experimental and Theoretical Studies of Phase Modulation in Yb-doped Fiber Amplifiers
Abstract
We present detailed studies of the effect of sinusoidal phase modulation on stimulated Brillouin scattering (SBS) in ytterbium-doped fiber amplifiers. Based on a time-dependent SBS model, SBS enhancement factor versus pump linewidth for different modulation depths ranging from 0 to, and modulation frequencies ranging from 30 MHz to 500 MHz were analyzed. In addition, experimental validation of SBS suppression via sinusoidal phase modulation is presented with experimental results agreeing well with the model and simulations. Furthermore, narrow linewidth coherent beam combining (CBC) of 5 sinusoidal phase modulated lasers is demonstrated via LOCSET.
Document Details
- Document Type
- Technical Report
- Publication Date
- Apr 01, 2012
- Accession Number
- ADA627959
Entities
People
- Angel Flores
- Christopher Vergien
- Chunte Lu
- Craig Robin
- Iyad Dajani
- Shadi Naderi
Organizations
- Air Force Research Laboratory