Metal-assisted DBRs for thermal management in VCSELs

Coherent light generators – Particular resonant cavity – Specified cavity component

Reexamination Certificate

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Details

C372S043010, C372S046012, C372S050124, C372S096000, C372S098000, C257S098000, C257SE33069, C257SE33072, C257SE51021

Reexamination Certificate

active

07860143

ABSTRACT:
A VCSEL includes a substrate having a partially removed portion; a metal-assisted DBR having a metal layer and a first mirror stack, wherein the metal layer is located at the partially removed portion of the substrate; an active region having a plurality of quantum wells over the metal-assisted DBR; and a second mirror stack over the active region, wherein a number of alternating layers of the first mirror stack is substantially smaller than a number typically required for a VCSEL without the integrated metal reflector. Such a metal-assisted DBR is especially useful for a long-wavelength VCSEL on a InP substrate or a red-color VCSEL on a GaAs substrate.

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