Broad spectrum emitter array and methods for fabrication thereof

An emitter array, comprising:

• a first plurality of emitters with each emitter of said first plurality of emitters being substantially identical and possessing a first quantum well characteristic;
• a second plurality of emitters with each emitter of said second plurality of emitters being substantially identical and possessing a second quantum well characteristic that is different that said first quantum well characteristic;
• and
• a monolithic substrate, wherein said first plurality of emitters and said second plurality of emitters are coupled to said monolithic substrate by being formed on said monolithic substrate.

A system for providing a Raman pump, comprising:

• an emitter array including:
• a first plurality of emitters with each emitter of said first plurality of emitters being substantially identical and possessing a first quantum well characteristic;
• a second plurality of emitters with each emitter of said second plurality of emitters being substantially identical and possessing a second quantum well characteristic that is different that said first quantum well characteristic;
• and
• a monolithic substrate, wherein said first plurality of emitters and said second plurality of emitters are coupled to said monolithic substrate by being formed on said monolithic substrate;
• a partially reflective component that provides feedback to said emitter array;
• and
• a diffraction grating that is operable to diffract output beams from said emitter array toward said partially reflective component and is operable to angularly separate feedback from said partially reflective component.