Long wavelength, vertical cavity surface emitting laser with ver

Coherent light generators – Particular resonant cavity – Distributed feedback

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372 50, 372 75, H01S 319, H01S 3094

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055132049

ABSTRACT:
A long wavelength VCSEL according to the present invention is optically coupled to and optically pumped by a shorter wavelength, electrically pumped VCSEL. Short wavelength radiation emitted from the top surface of the underlying VCSEL is transmitted through the lower mirror of the long wavelength VCSEL. Long wavelength radiation is preferably emitted from the top surface of the long wavelength VCSEL. The two VCSELs are preferably joined together using a transparent optical adhesive, a wafer-fusing process, or a metal to metal bond.

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