Several examples of double-pass fiber amplifiers including a polarization maintaining (PM) gain-fiber are disclosed. In each example, input and twice-amplified output are separated by an all-fiber, polarization-maintaining polarization splitter combiner. The examples include double-pass fiber amplifiers not including any bulk components and double pass fiber amplifiers including a bulk component or a Faraday rotating mirror located in a position in the amplifier wherein the component is exposed only to radiation amplified on the first pass through the gain-fiber.
申请公布号
WO2008016579(A3)
申请公布日期
2008.12.11
申请号
WO2007US17065
申请日期
2007.07.31
申请人
COHERENT, INC.;STARODOUMOV, ANDREI;CRITTENDEN, PAUL