Master oscillator power amplifier, fiber laser system and lidar

Abstract

A master oscillator power amplifier for a Lidar is provided. The master oscillator power amplifier includes: a housing; a pump chip configured to provide first optical energy having a first wavelength and propagation along an optical path; a first optical element group, disposed in the housing and configured to pre-process the first optical energy; a gain fiber collimator, coupled to a gain fiber and configured to couple the pre-processed first optical energy into the gain fiber; and a dichroic mirror, disposed on the optical path between the first optical element group and the gain fiber collimator, and configured to direct the pre-processed first optical energy toward the gain fiber collimator. By coupling and integrating discrete optical devices into the housing, the integration level and stability are improved. The dichroic mirror shortens a fiber length, reduces fiber fusion splicing points, and enhances manufacturability.

Dependencies are inferred from the claim text.