975-nm single-mode laser source: external coherent combining of two pigtailed laser diodes

Abstract

We report on the efficient coherent combining up to 85% of two single-mode fiber coupled laser diodes emitting at 975 nm. The combining is performed by an external feedback on the two laser diode cavities through an all-fiber interferometric arrangement based on standard components.Index Terms-Coherent combining, interferometer resonator, laser diode, 975-nm single-mode laser source.