US Patent Application No: 2012/0039,606

Number of patents in Portfolio can not be more than 2000

LOW POWER OPTICAL TRANSCEIVER USING ORTHOGONAL POLARIZATION DETECTION TECHNIQUE

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ATTORNEY / AGENT: (SPONSORED)

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Abstract

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A method and apparatus for simultaneous processing of signals impressed on a horizontal polarization of a light wave and on a vertical polarization of the light wave is provided. In one embodiment, a horizontal polarization pilot tone is impressed on a data signal carried by the horizontal polarization and a vertical polarization pilot tone is impressed on a data signal carried by the vertical polarization. A receiver processes the dual-polarized light wave and converts it to an X channel signal and a Y channel signal. The X and Y channel signals are processed in separate channels to recover a phase and frequency offset between them and a local oscillator. The phase and frequency recovered and frequency de-multiplexed signals are further processed to polarization de-multiplex the data signal carried by the horizontal polarization and the data signal carried by the vertical polarization.

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Patent Owner(s)

Patent OwnerAddressTotal Patents
CIENA CORPORATIONLINTHICUM, MD1480

International Classification(s)

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Inventor(s)

Inventor Name Address # of filed Patents Total Citations
Frankel, Michael Y Baltimore, MD 83 170
Grigoryan, Vladimir S - 11 6
Pelekhaty, Vladimir Orlando, FL 17 56

Patent Citation Ranking

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Patent Info (Count) # Cites Year
 
ALCATEL LUCENT (1)
8,660,433 Pilot-assisted data transmission in a coherent optical-communication system 0 2010
 
INFINERA CORPORATION (1)
8,768,177 Wavelength division multiplexed optical communication system having variable channel spacings 0 2010