FEC enhanced system for an optical communication network

Details FEC enhanced system for an optical communication network FEC enhanced system for an optical communication network

2006-09-26

2006-09-26

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

With optical coupler

Plural

C385S014000, C385S037000, C398S140000, C398S141000, C398S162000, C398S164000

Reexamination Certificate

active

07113667

ABSTRACT:
A FEC enhanced system for an optical transport or communication network that includes an optical transmitter that has a transmitter photonic integrated circuit (TxPIC) chip having an integrated circuit comprising an array of modulated sources providing a plurality of optical modulated channel signals comprising digital bit data streams where each signal is at a wavelength on a wavelength grid. The modulated channel signal outputs from the modulated sources are provided to an integrated multiplexer in the circuit to provide a WDM output signal at a circuit output. At least one FEC encoder is coupled to the modulated sources to encode error-correcting code containing redundant information of the data bit stream for each channel signal. An optical receiver in the network includes a receiver photonic integrated circuit (RxPIC) chip having an integrated circuit comprising an input to a demultiplexer and an array of photodetectors coupled to outputs of the demultiplexer. At least one FEC decoder is coupled to the photodetectors to provide decoded data relating to the bit error rate (BER). Information relating to the BER is provided by a controller at the optical receiver to provide real-time information to the optical transmitter relating to optical characteristics of the modulated sources based upon the BER data.

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Kaminow and K

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