Optical waveguides – Planar optical waveguide
Reexamination Certificate
2007-03-13
2007-03-13
Font, Frank G. (Department: 2883)
Optical waveguides
Planar optical waveguide
C385S130000, C359S333000, C359S341100, C359S342000, C359S344000, C359S345000, C359S346000, C372S076000, C372S083000, C372S098000, C372S099000, C372S101000
Reexamination Certificate
active
11375466
ABSTRACT:
The present invention provides a polarization dependency-free, gain-saturated high function semiconductor optical amplifier and optical module at industrially low cost. The gist of the present invention is to structurally separate the optical signal propagating waveguide from another optical waveguide which serves as a lasing optical cavity for optical amplification in such a manner that the two optical waveguides are formed in the same plane but not parallel to each other.
REFERENCES:
patent: 6928099 (2005-08-01), Ledentsov et al.
Kamiyama Hiroyuki
Sumi Seiji
Uchida Kenji
Font Frank G.
Lepisto Ryan
OpNext Japan, Inc.
Townsend and Townsend / and Crew LLP
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