Stabilized pump laser output system and method

A stabilized pump laser source (300, 500) includes a semiconductor laser source (310, 520) that generates a coherent output signal and a light stabilizer. The light stabilizer comprises an optical fiber configured to pass at least one polarization component to a Bragg grating to provide decoherent external reflections and to generate a stabilized pump output signal. The fiber may be a single mode fiber (320) mounted with the laser source (310) on a common temperature stabilized substrate (330). Alternatively, the fiber may be a polarizing fiber (540, 560) with sufficient extinction ratio to reject light of an incorrect polarization.