Coherent light generators – Particular resonant cavity – Distributed feedback
Reexamination Certificate
2006-01-17
2006-01-17
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular resonant cavity
Distributed feedback
C372S045013, C372S046012
Reexamination Certificate
active
06987791
ABSTRACT:
Long-wavelength VCSELs having top DBR mirrors with multiple levels. The individual levels of the DBR are comprised of different materials. The top DBR mirror level(s) forms a pillar structure and/or are defined by trenches. Top contacts are formed on the top DBR mirror below that mirror's top level. An aperture is formed in one of the DBR layers. An ion implanted region is formed in the top DBR and may extend into the active region and into part of a bottom DBR. The top DBRs are beneficially fabricated by etching parts of upper level(s) down to the lower level(s).
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patent: 6185241 (2001-02-01), Sun
patent: 6534331 (2003-03-01), Liao et al.
patent: 6577658 (2003-06-01), Lee et al.
patent: 6618414 (2003-09-01), Wasserbauer et al.
Finisar Corporation
Harvey Minsun Oh
Jackson Cornelius H
Workman Nydegger
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