Optical transceivers for use in fiber optic communication networks
AssigneeCiena Corporation
InventorsVladimir S. GRIGORYAN, Michael Y. Frankel, Michael J. Wingrove
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Abstract
The present disclosure provides a polarization multiplexed transceiver, including: a transmitter; a receiver; circuitry within the transmitter configured to insert pilot tones as a reference state of polarization for a polarization multiplexed signal; and circuitry within the receiver configured to de-multiplex the polarization multiplexed signal using the pilot tones. The transmitted signal is constructed in such a manner as to facilitate the division of the receiver processing between the analog and digital domains such that the implementation may be simultaneously both highly spectrally efficient and power efficient.
Claims20
A polarization multiplexed optical system, comprising:
- a transmitter configured to transmit a polarization multiplexed signal and to insert a pilot tone as a state of polarization reference for the polarization multiplexed signal;
- and
- a receiver communicatively coupled to the transmitter and configured to extract the pilot tone and correspondingly polarization demultiplex the polarization multiplexed signal based on the extracted pilot tone.
A polarization multiplexed optical method, comprising:
- inserting a pilot tone as a state of polarization reference for a polarization multiplexed signal;
- transmitting the polarization multiplexed signal with the pilot tone;
- receiving the polarization multiplexed signal with the pilot tone;
- and
- demultiplexing the polarization multiplexed signal using the pilot tone.
A polarization multiplexed transceiver, comprising:
- a transmitter;
- a receiver;
- circuitry within the transmitter configured to insert a pilot tone as a state of polarization reference for a polarization multiplexed signal;
- and
- circuitry within the receiver configured to demultiplex the polarization multiplexed signal using the pilot tone.
Dependencies are inferred from the claim text.