Optical phase conjugation for ultra long-haul phase-shift-keyed transmission

Jansen, S.L.; Borne, D. van den; Spinnler, Bernhard; Calabrò, Stefano; Suche, H.; Krummrich, Peter M.; Sohler, W.; Khoe, G.D.; Waardt, H. de

doi:10.1109/jlt.2005.862481

Cited by 120 publications

(49 citation statements)

References 26 publications

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“…In the absence of noise, it can be proved that back-propagation method can fully compensate the linear and nonlinear fibre impairments to arbitrary precision, provided that sufficient steps are taken in each fibre span. Note that this method is similar to that of propagating the signal along an identical link after optical phase conjugation [10][11][12], but with added benefits that the impact of third order (and other odd ordered) dispersion may be accommodated. It is also noted that although precise calculation of the SSFM for back-propagation is still complicated, especially for multi-channel cases and higher sampling rate, various methods have been proposed to simplify the electronic signal processing [19][20][21][22][23].…”

Section: Back-propagation Modelmentioning

confidence: 99%

“…The information rate in an optical transmission system is limited by the interplay between amplified spontaneous emission (ASE) noise, chromatic dispersion (CD), and Kerr fibre nonlinearity. The recent revival of coherent detection with the availability of high speed digital signal processing (DSP) technologies has enabled electronic mitigation of these effects [5,6], as an alternative to traditional techniques like dispersion management [7][8][9] and optical phase conjugation (OPC) [10][11][12]. In particular, electronic signal processing using back-propagation with inverse fibre parameters or time inversion has been applied to the compensation of intraand inter-channel nonlinearities [13][14][15][16][17][18].…”

Section: Introductionmentioning

confidence: 99%

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Compensation of Nonlinear Fibre Impairments in Coherent Systems Employing Spectrally Efficient Modulation Formats

Rafique

Zhao

Ellis

2011

IEICE Trans. Commun.

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SUMMARYWe investigate electronic mitigation of linear and nonlinear fibre impairments and compare various digital signal processing techniques, including electronic dispersion compensation (EDC), single-channel back-propagation (SC-BP) and backpropagation with multiple channel processing (MC-BP) in a ninechannel 112 Gb/s PM-mQAM (m=4,16) WDM system, for reaches up to 6,320 km. We show that, for a sufficiently high local dispersion, SC-BP is sufficient to provide a significant performance enhancement when compared to EDC, and is adequate to achieve BER below FEC threshold. For these conditions we report that a sampling rate of two samples per symbol is sufficient for practical SC-BP, without significant penalties.

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Section: Back-propagation Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Compensation of Nonlinear Fibre Impairments in Coherent Systems Employing Spectrally Efficient Modulation Formats

Rafique

Zhao

Ellis

2011

IEICE Trans. Commun.

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“…2 presents on the left a scheme of a fully fiber connected optical subsystem with a Ti:PPLN channel guide as core component for polarization-independent wavelength conversion by cSHG/DFG. This device was the key component in a 21.4 Gbit/s (per channel) differential quadrature phase-shift keying (DQPSK) transmission experiment with 22 WDM channels over more than 10000 km [5]; it was used in the middle of the span for compensation of chromatic dispersion and nonlinear impairments. Figure 2 shows on the right the output spectrum of the converter of about -9 dB conversion efficiency.…”

Section: All-optical Wavelength Convertersmentioning

confidence: 99%

All-Optical Signal Processing Devices with (Periodically Poled) Lithium Niobate Waveguides

Grundkötter

Herrmann

et al. 2007

OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference

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Document VersionPublisher's PDF, also known as Version of Record (includes final page, issue and volume numbers)Please check the document version of this publication:• A submitted manuscript is the author's version of the article upon submission and before peer-review. There can be important differences between the submitted version and the official published version of record. People interested in the research are advised to contact the author for the final version of the publication, or visit the DOI to the publisher's website.• The final author version and the galley proof are versions of the publication after peer review.• The final published version features the final layout of the paper including the volume, issue and page numbers. Link to publication General rightsCopyright and moral rights for the publications made accessible in the public portal are retained by the authors and/or other copyright owners and it is a condition of accessing publications that users recognise and abide by the legal requirements associated with these rights.• Users may download and print one copy of any publication from the public portal for the purpose of private study or research.• You may not further distribute the material or use it for any profit-making activity or commercial gain • You may freely distribute the URL identifying the publication in the public portal ? Take down policyIf you believe that this document breaches copyright please contact us providing details, and we will remove access to the work immediately and investigate your claim. IntroductionDuring the last years a variety of efficient integrated optical devices for ultra-fast all-optical signal processing in the 1.5-μm wavelength range has been developed. By exploiting quasi phase matched second order nonlinear interactions in Ti-indiffused or proton exchanged waveguides in periodically poled Lithium Niobate (Ti:PPLN, pe:PPLN) wavelength conversion, dispersion compensation, parametric amplification, -selective time division multiplexing, phase-and polarization-switching as well as spatial switching have been demonstrated [1]. Moreover, a whole family of Er-doped waveguide lasers has been developed in LN emitting in the wavelength range 1530 nm < < 1603 nm [2]. In particular, the new integrated frequency shifted feedback lasers are attractive devices for all-optical signal processing and allow e.g. optical frequency domain ranging with high accuracy. To improve the performance of nonlinear and laser devices, new waveguide structures such as ridge guides, photonic crystal guides and bent PPLN structures have been developed.It is the aim of this contribution to review the state of the art of integrated nonlinear and laser devices in LN for all-optical signal processing. Applications in the field of optical communications and metrology are emphasized.

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“…However, accurate DBP requires a substantial increase in DSP complexity, proportional to the number of spans. Fibre nonlinear impairments can also be effectively mitigated using optical phase conjugators 3 (OPC). However, inserting an OPC into the links significantly reduces the flexibility of the optical network.…”

Section: Introductionmentioning

confidence: 99%

Phase-conjugated subcarrier coding for fibre nonlinearity mitigation in CO-OFDM transmission

Doran

Ellis

et al. 2014

2014 the European Conference on Optical Communication (ECOC)

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Optical phase conjugation for ultra long-haul phase-shift-keyed transmission

Cited by 120 publications

References 26 publications

Compensation of Nonlinear Fibre Impairments in Coherent Systems Employing Spectrally Efficient Modulation Formats

Compensation of Nonlinear Fibre Impairments in Coherent Systems Employing Spectrally Efficient Modulation Formats

All-Optical Signal Processing Devices with (Periodically Poled) Lithium Niobate Waveguides

Phase-conjugated subcarrier coding for fibre nonlinearity mitigation in CO-OFDM transmission

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