Patent ID: 8531772
Filing Date: 2013-09-10
Classification: H01S

Abstract:
1. A multi-wavelength beam combiner comprising: a laser stack comprising a plurality of laser arrays arranged along a stacking dimension of the laser stack, each laser array configured to generate optical radiation having a unique wavelength, and each of the plurality of laser arrays comprising at least one optical gain element arranged along an array dimension of the laser stack; an optical imaging element configured to image the at least one optical gain element of each laser array along a slow axis of the optical gain elements; an optical focusing element arranged to intercept the optical radiation from each of the plurality of laser arrays and combine the optical radiation along the stacking dimension of the laser stack to form a multi-wavelength optical beam; and a diffraction element positioned at a region of overlap of the optical radiation to receive and transmit the multi-wavelength optical beam; wherein the optical imaging element is configured to image the at least one optical gain element of each laser array onto the diffraction element.