Coherent light generators – Particular pumping means – Pumping with optical or radiant energy
Reexamination Certificate
2011-08-16
2011-08-16
Van Roy, Tod T (Department: 2828)
Coherent light generators
Particular pumping means
Pumping with optical or radiant energy
C372S071000, C372S072000, C372S075000, C372S050110
Reexamination Certificate
active
08000371
ABSTRACT:
A semiconductor light emitting device includes a pump light source, a gain structure, and an out-coupling mirror. The gain structure is comprised of InGaN layers that have resonant excitation absorption at the pump wavelength. Light from the pump light source causes the gain structure to emit light, which is reflected by the out-coupling mirror back to the gain structure. A distributed Bragg reflector causes internal reflection within the gain structure. The out-coupling mirror permits light having sufficient energy to pass therethrough for use external to the device. A frequency doubling structure may be disposed between the gain structure and the out-coupling mirror. Output wavelengths in the deep-UV spectrum may be achieved.
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Chua Christopher L.
Johnson Noble M.
Kiesel Peter
Strittmatter Andre
Palo Alto Research Center Incorporated
Roy Tod T Van
Small Jonathan A.
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