Optical waveguides – With optical coupler – Input/output coupler
Reexamination Certificate
2006-08-29
2006-08-29
Connelly-Cushwa, Michelle (Department: 2874)
Optical waveguides
With optical coupler
Input/output coupler
Reexamination Certificate
active
07099538
ABSTRACT:
Apparatus for dispersion compensating a signal (18) that propagates along a signal path (19), which apparatus comprises a grating (1) and a tuning means (2). The grating (1) is characterized by a wavelength operating range (3) and a group delay (4) that varies with wavelength (5), wherein the group delay (4) is equal at a plurality of pairs of wavelengths (6), (7) that are separated within the wavelength operating range (3), and wherein the grating (1) reflects each wavelength pair (6) from the same region (8) of the grating (1), and different wavelength pairs (7) from different regions (9) of the grating (1).
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Connelly-Cushwa Michelle
Reid John S.
Reidlaw, L.L.C.
SPI Lasers UK Ltd
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