Reflective optical amplifier array with shared drive

Abstract

An integrated optical device (20, 70, 80, 90, 100) includes an amplifier chip (22), which includes a plurality of multi-pass semiconductor optical gain media (60, 92) having respective reflective ends (61) and respective transmissive ends (63) and multiple first optical couplers (58) optically coupled respectively to the transmissive ends of the optical gain media. A photonics chip (24) includes multiple second optical couplers (50), which are aligned respectively with the first optical couplers on the amplifier chip, and optical circuitry (51), which directs a coherent seed beam through the second optical couplers for input via the first optical couplers to the multi-pass semiconductor optical gain media and to receive amplified beams from the multi-pass semiconductor optical gain media via the first and second optical couplers.

Dependencies are inferred from the claim text.