Single contact tailored gain chirped arrays of diode lasers for supermode control with single-lobed farfield patterns
In a phase-locked array of diode laser channels fabricated in a body of semiconductor material cleaved at opposite ends to provide facet mirrors which form resonant cavities in the channels, and having a contact for current injection into each channel along at least a majority of its entire length, the improvement is described of supermode control for a single-lobed farfield pattern comprising means for spatially segregating the supermodes of the array to concentrate the fundamental supermode at one part of the array. Means for tailoring the spatial gain profile so as to favor the fundamental supermode, and means for increasing interchannel coupling sufficiently to bring about a single-lobed farfield pattern for spatially segregating the fundamental supermode from the other supermodes is comprised of the channels being nonuniform in width.
- Assignee:
- California Institute of Technology, Pasadena, CA
- Patent Number(s):
- US 4719632
- OSTI ID:
- 5276189
- Country of Publication:
- United States
- Language:
- English
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