Integrated multi-wavelength and wideband lasers

Details Integrated multi-wavelength and wideband lasers Integrated multi-wavelength and wideband lasers

H - Electricity

01

S

H01S 5/062 (2006.01) G02B 6/12 (2006.01) H01S 5/0625 (2006.01) H01S 5/34 (2006.01) H01S 5/50 (2006.01) G02B 6/34 (2006.01) H01S 5/10 (2006.01) H01S 5/40 (2006.01)

Patent

CA 2372910

A laser has a spatially varying absorption spectrum formed in a monolithic InGaAsP structure whose quantum well active structure has modified effective bandgap properties. The spatially varying emission spectrum allows emission at multiple wavelengths or emission in a broad band. The effective bandgap properties can be modified by rapid thermal annealing to cause the diffusion of defects from one or two InP defect layers into the quantum well active structure. The laser can be implemented variously as a Fabry-Perot laser and a laser array.

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