Phase-conjugated twin waves for communication beyond the Kerr nonlinearity limit

Liu, Xiang; Chraplyvy, A. R.; Winzer, Peter J.; Tkach, R.W.; Chandrasekhar, S.

doi:10.1038/nphoton.2013.109

Cited by 344 publications

(210 citation statements)

References 46 publications

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“…In contrast to the scheme presented here based on a degenerate vector FOPA, Liu et al [16] created both conjugated waves by electro-optic modulation within the transmitter. Thus, the scheme proposed in this paper has the capability to create such pair of conjugated waves all optically.…”

Section: Principle Of Operationmentioning

confidence: 98%

“…Creating a wave and its orthogonally polarized conjugated copy was experimentally achieved for the purpose of cancelling impairments due to the nonlinearities in the fiber transmission [16]. In contrast to the scheme presented here based on a degenerate vector FOPA, Liu et al [16] created both conjugated waves by electro-optic modulation within the transmitter.…”

Section: Principle Of Operationmentioning

confidence: 99%

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Quadrature demultiplexing using a degenerate vector parametric amplifier

et al. 2014

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Abstract:We report on quadrature demultiplexing of a quadrature phase-shift keying (QPSK) signal into two cross-polarized binary phaseshift keying (BPSK) signals with negligible penalty at bit-error rate (BER) equal to 10 −9 . The all-optical quadrature demultiplexing is achieved using a degenerate vector parametric amplifier operating in phase-insensitive mode. We also propose and demonstrate the use of a novel and simple phase-locked loop (PLL) scheme based on detecting the envelope of one of the signals after demultiplexing in order to achieve stable quadrature decomposition.

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Section: Principle Of Operationmentioning

confidence: 98%

Section: Principle Of Operationmentioning

confidence: 99%

Quadrature demultiplexing using a degenerate vector parametric amplifier

et al. 2014

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“…In this context, a renewed interest for nonlinear compensation has led to several demonstrations both in the digital and the optical domains [2][3][4] . Optical phase conjugation (OPC) is a well-known technique allowing inverting the signal spectrum, therefore enabling the compensation of dispersion and Kerr effect accumulated through propagation by further transmission of the conjugated signal.…”

Section: Introductionmentioning

confidence: 99%

Design and performance evaluation of an OPC device using a dual-pump polarization-independent FOPA

Sackey

Ros

Richter

et al. 2014

2014 the European Conference on Optical Communication (ECOC)

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“…However, inserting an OPC into the links significantly reduces the flexibility of the optical network. A breakthrough fibre nonlinearity compensation technique called phase-conjugated twin wave (PCTW) has been proposed recently by X. Liu et al 4 . In the PCTW scheme, the signal complex waveform and its phase-conjugate copy are simultaneously transmitted in x-and ypolarization states to achieve nonlinear noise cancellation at the receiver through coherent superposition of the two copies.…”

Section: Introductionmentioning

confidence: 99%

“…However, in a CO-OFDM transmission, the nonlinear distortions on neighbouring subcarriers are highly correlated, and thus, performance improvement can be achieved by encoding and processing neighbouring subcarriers simultaneously at the transmitter and receiver. In order to enhance the similarity of nonlinear distortions on neighbouring OFDM subcarriers, and thus, further improving the effectiveness of PCSC, pre-EDC is applied in this work to create a dispersion-symmetry along the transmission link [4,5].…”

Section: Introductionmentioning

confidence: 99%