Self-Coherent Decision-Feedback-Directed 40-Gb/s DQPSK Receiver

Self-Coherent Decision-Feedback-Directed 40-Gb/s DQPSK Receiver

A novel 40-Gb/s differential quadrature phase-shift keying receiver is theoretically proposed, improving direct detection by 4.2 dB for self-phase-modulation-limited single-channel transmission, approaching ideal coherent homodyne performance using a recirculating delay line interferometric integrat...

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Veröffentlicht in:IEEE photonics technology letters 2007-06, Vol.19 (11), p.828-830
Hauptverfasser: Nazarathy, M., Xiang Liu, Christen, L., Lize, Y., Willner, A.
Format: Artikel
Sprache:eng
Schlagworte:
Circuits
Coherence
Decision feedback
Delay lines
differential phase-shift keying (DPSK)
Fiber nonlinear optics
integrated optics
maximum likelihood decoding
Noise levels
Nonlinear optics
Nonlinearity
Optical feedback
optical fiber communication
Optical filters
Optical interferometry
Optical modulation
Optical receivers
Optical transmitters
Phase detection
phase modulation
Photonics
Quadrature phase shift keying
Quadratures
Receivers
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Beschreibung
Zusammenfassung:A novel 40-Gb/s differential quadrature phase-shift keying receiver is theoretically proposed, improving direct detection by 4.2 dB for self-phase-modulation-limited single-channel transmission, approaching ideal coherent homodyne performance using a recirculating delay line interferometric integrated-optical circuit front-end combining decision feedback and nonlinear phase-noise compensation
ISSN:1041-1135
1941-0174
DOI:10.1109/LPT.2007.896576