Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2011-02-15
2011-02-15
Vanderpuye, Ken N (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S082000, C398S083000, C398S084000, C398S086000, C398S087000, C385S016000, C385S018000, C385S037000
Reexamination Certificate
active
07889991
ABSTRACT:
The invention relates to a tunable optical add/drop module (TOADM) monolithically integrated on a single planar lightwave circuit (PLC). The present invention overcomes the shortcomings of the prior art by providing virtual pupils at the interface between the channel waveguides and the slab waveguide on the PLC for focusing each wavelength channel, and additional on-chip lenses on the PLC for transforming the focal plane of the spatially dispersive demultiplexer into a substantially flat plane at the edge of the PLC. On-chip lenses are realized as reflective surfaces within slab waveguiding regions having a surface curvature to provide optical power.
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JDS Uniphase Corporation
Ngo Tanya
Pequignot Matthew A.
Pequignot & Myers LLC
Vanderpuye Ken N
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