Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2006-01-17
2006-01-17
Lee, Diane I. (Department: 2876)
Optical waveguides
With optical coupler
Input/output coupler
C385S123000
Reexamination Certificate
active
06987908
ABSTRACT:
A grating dispersion compensator (GDC), including: a substrate; a dielectric grating layer; a planar waveguide; and a passivation layer. The dielectric grating layer may be formed on the substrate and includes a variation in refractive index. This variation in refractive index defines a grating period. The grating period may vary along the longitudinal axis of the GDC according to a predetermined function. A selected center wavelength and dispersion curve may be created. The chirp of the grating period may be controlled by current, voltage, temperature, or pressure. The planar waveguide is formed on the dielectric grating layer and includes an input/output (I/O) surface normal to the longitudinal axis of the planar waveguide. The passivation layer is formed on the planar waveguide. Alternatively, a GDC may be formed with the dielectric grating layer on top of the planar waveguide rather then beneath it.
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Bond Aaron
Frateschi Newton C.
Jambunathan Ram
Koyama Kumiko C.
Lee Diane I.
T-Networks, Inc.
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