Optical cross-coupling mitigation system for multi-wavelength beam combining systems

摘要

A system and method for increasing efficiency and power output of a multi-wavelength beam combining system through providing a common output coupler to reflect feedback that stabilizes or individually seeds each emitter, and wherein the individual feedback is preserved by mitigating cross-coupling, wherein a multi-wavelength beam comprised of radiation having a plurality of wavelengths, high brightness and power.

主权项

1. A multi-wavelength beam combining laser system comprising:
a dispersive element, positioned along a beam combining dimension, to receive a plurality of converging beams emitted by a plurality of diode elements, and transmit the beams; a cross-coupling mitigation system positioned to receive and transmit the beams; and a partially-reflecting output coupler positioned within the Rayleigh range of the beams transmitted by the cross-coupling mitigation system and arranged to receive the beams from the cross-coupling mitigation system, to reflect a portion of the beams toward the cross-coupling mitigation system, and to transmit the beams as a multi-wavelength beam, wherein the cross-coupling mitigation system is configured to receive the reflected beams and direct the reflected beams onto the dispersive element at an angle that reduces cross coupling into the plurality of diode elements.