Optical communications – Transmitter and receiver system – Including optical waveguide
Reexamination Certificate
2004-10-22
2009-06-30
Phan, Hanh (Department: 2613)
Optical communications
Transmitter and receiver system
Including optical waveguide
C398S148000, C398S149000, C398S158000, C398S159000, C398S160000, C398S081000, C398S082000, C385S024000, C385S037000, C385S027000, C385S123000, C385S124000, C385S129000, C385S031000, C385S011000
Reexamination Certificate
active
07555220
ABSTRACT:
An optical equalizer/dispersion compensator (E/CDC) comprises an input/output for receiving a multiplexed channel signal comprising a plurality of channel signals of different wavelengths. An optical amplifier may be coupled to receive, as an input/output, the multiplexed channel signals which amplifier may be a semiconductor optical amplifier (SOA) or a gain clamped-semiconductor optical amplifier (GC-SOA). A variable optical attenuator (VOA) is coupled to the optical amplifier and a chromatic dispersion compensator (CDC) is coupled to the variable optical attenuator. A mirror or Faraday rotator mirror (FRM) is coupled to the chromatic dispersion compensator to reflect the multiplexed channel signal back through these optical components The E/CDC components may be integrated in a photonic integrated circuit (PIC) chip.
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Grubb Stephen G.
Joyner Charles H.
Kish, Jr. Fred A.
Perkins Drew D.
Peters Frank H.
Carothers, Jr. W. Douglas
Infinera Corporation
Phan Hanh
Soltz David L.
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