Coherent light generators – Particular active media – Semiconductor
Reexamination Certificate
2005-12-15
2010-11-30
Harvey, Minsun (Department: 2828)
Coherent light generators
Particular active media
Semiconductor
C372S068000
Reexamination Certificate
active
07843982
ABSTRACT:
A method of avoiding device failure caused by facet heating is described. The method is particularly applicable to a semiconductor laser. In the method, a semiconductor laser facet including GaAsN is hydrogenated such that the bandgap within the facet is greater than the bandgap in the active region of the InGaAsN laser. The increased bandgap reduces absorption of light in the facet and the associated heating that results.
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Chua Christopher L.
Johnson Noble M.
Kiesel Peter
Kneissl Michael A.
Golub-Miller Marcia A.
Harvey Minsun
Palo Alto Research Center Incorporated
Small Jonathan A.
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