High efficiency, wavelenght stabilized laser diode using arrayed waveguide gratings (AWG) and architecture for combining same with brightness conservation

摘要

The invention relates to high power semiconductor lasers based on a laser diode array waveguide grating (DAWG;300) in which the wavelength is stabilized using an array waveguide grating (AWG;302) in an external cavity configuration. Another aspect of the present invention relates to techniques for efficiently coupling optical gain element arrays to an AWG. Another feature provides for the efficient and brightness-conserving combination of multiple high power DAWG lasers into a single output.