We present high power results of a Yb-doped fiber amplifier seeded with a combination of broad and single- frequency laser signals. This two-tone concept was used in conjunction with externally applied or intrinsically formed thermal gradients to demonstrate combined stimulated Brillouin scattering suppression in a copumped monolithic, polarization-maintaining (PM) fiber. Depending on the input parameters and the thermal gradient, the output power of the single-frequency signal ranged from 80 to with slope efficiencies from 70% to 80%. The amplifier was pump limited and is, to the best of our knowledge, the highest reported in the literature for monolithic, PM single-frequency fiber amplifiers.
© 2011 Optical Society of AmericaFull Article | PDF Article
Iyad Dajani, Clint Zeringue, T. Justin Bronder, Thomas Shay, Athanasios Gavrielides, and Craig Robin
Opt. Express 16(18) 14233-14247 (2008)
Iyad Dajani, Christopher Vergien, Craig Robin, and Clint Zeringue
Opt. Express 17(26) 24317-24333 (2009)
Iyad Dajani, Clint Zeringue, Chunte Lu, Christopher Vergien, Leanne Henry, and Craig Robin
Opt. Lett. 35(18) 3114-3116 (2010)