Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Reexamination Certificate
2006-08-01
2006-08-01
Lee, John D. (Department: 2874)
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
C385S015000, C385S024000, C398S043000, C398S048000, C398S053000
Reexamination Certificate
active
07085438
ABSTRACT:
An optical multi/demultiplexing circuit includes at least one phase generating optical coupler and an optical delay line coupled to the phase generating optical coupler. The phase generating optical coupler consists of at least one input and at least two outputs. At least one of the phase generating optical coupler has a wavelength dependent or frequency dependent output phase difference in the passband of the circuit so that it can change the transmittance characteristics of the optical multi/demultiplexing circuit.
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Inoue Yasuyuki
Kitoh Tsutomu
Mizuno Takayuki
Oguma Manabu
Lee John D.
Nippon Telegraph and Telephone Corporation
Stein James D.
Workman Nydegger
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