Patent ID: 7376165

Claim:
A laser diode system for propagating multiple laser beams of different wavelengths along the same optical axis, the system comprising: at least two broad-beam emitter laser diodes; and a laser support structure disposed in contact with each of said at least two laser diodes and configured to support each of said at least two laser diodes in a substantial abutting relationship, wherein each of said at least two laser diodes outputs a wavelength different from any other one of said at least two laser diodes and wherein an output of one of said at least two laser diodes provides a laser output containing beams from each of said at least two laser diodes, said contained beams retaining their original wavelengths and being aligned in the same optical axis, wherein each of said at least two laser diodes includes a first reflective coating on a back facet and a second reflective coating on a front facet; and wherein the first and second reflective coatings of the front facet and the rear facet provide very narrow band reflectivity with said coatings being transparent outside of said narrow band thereby allowing light of wavelengths outside said narrow band to pass directly through the at least two laser diodes.