Optical communications – Multiplex – Polarization
Reexamination Certificate
2008-03-11
2011-11-22
Liu, Li (Department: 2613)
Optical communications
Multiplex
Polarization
C398S076000, C398S079000, C398S081000, C398S147000, C398S152000, C398S158000, C398S159000, C398S184000, C398S192000, C398S205000, C398S208000
Reexamination Certificate
active
08064767
ABSTRACT:
The present invention provides a system and method of optical communications that utilize coherent detection technique and optical orthogonal frequency division multiplexing for phase encoded data transmission. In particular the invention addresses a device and method for digital polarization compensation of optical signals with up to 100 Gb/s transmission rate received via an optical link. The polarization compensation operates in two modes: acquisition mode and tracking mode. The polarization recovery is performed at the receiver side using the received digital signal conversion into frequency domain and separate reconstruction of the polarization state in each spectral component.
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Authors(s): Leonid G. Kazovsky, Georgios Kalogerakis and Wei-Tao Shaw, Title: Homodyne Phase-Shift-Keying Systems; Past Challenges and Future Opportunities, Date: Dec. 2006, Publisher: Journal of Lightwave Technology, vol. 24, No. 12.
Jasen: “20 Gb/s OFDM Transmission over 4,160-km SSMF Enabled by RF-Pilot Tone Phase Noise Compensation”, OFC 2007, Mar. 25-29, 2007, postdeadline paper PDP15.
Shieh: “Coherent optical orthogonal frequency division multiplexing”, Electronics Letters: vol. 42., No. 10, May 11, 2006.
Lowery: “Orthogonal-Frequency-Division Multiplexing for Optical Dispersion Compensation”, OFC 2007, Mar. 25-29, 2007, paper OTuA4.
Genusov Alexander
Khurgin Jacob
Meiman Yehouda
Shpantzer Isaac
CeLight, Inc.
Liu Li
Reingand Nadya
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