HIGH SPEED VERTICAL-CAVITY SURFACE-EMITTING LASER
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United States of America Patent
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Issued Date -
Jan 31, 2013
app pub date -
Mar 9, 2012
filing date -
Jul 27, 2011
priority date (Note) -
Abandoned
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Abstract
There is described a high speed vertical-cavity surface-emitting laser (VCSEL) comprising a substrate and first and second distributed Bragg reflectors (DBRs) disposed on the substrate, each comprising a stack of layers of alternating refractive index. A resonant cavity is disposed between the DBRs and an active region disposed in the resonant cavity. The resonant cavity is formed of material having low refractive index and has an optical thickness in a direction perpendicular to the substrate of ½λ, where λ is the wavelength of light emitted by the VCSEL.
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