Pulse-Shaping With Digital, Electrical, and Optical Filters—A Comparison

Schmogrow, R.; Ben-Ezra, Shalva; Schindler, Philipp; Nebendahl, B.; Koos, C.; Freude, W.; Leuthold, Juerg

doi:10.1109/jlt.2013.2271513

Cited by 58 publications

(27 citation statements)

References 22 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…In the latter case, the complexity and cost of the transmitter is increased due to the requirements in terms of electrical bandwidth and sampling rate for the DAC. The above mentioned techniques cannot provide an ideal rectangular shape due to technology limitations [8]. OFDM provides spectral efficiency performances comparable to Nyquist-WDM techniques, but at the expense of more complex DSP; as extensively detailed in [6].…”

Section: Introductionmentioning

confidence: 99%

Sub-Nyquist field trial using time frequency packed DP-QPSK super-channel within fixed ITU-T grid

Potì¹,

Meloni²,

Berrettini³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

Section: Introductionmentioning

confidence: 99%

Sub-Nyquist field trial using time frequency packed DP-QPSK super-channel within fixed ITU-T grid

Potì¹,

Meloni²,

Berrettini³

et al. 2015

Opt. Express

View full text Add to dashboard Cite

“…Adaptive filtering operations are particularly of interest, enabling tuning of the center wavelength, bandwidth, dispersion compensation level and signal formats. Performing these operations with a spatial light modulator (SLM) operating on spatially dispersed light has been demonstrated [1][2][3]. These and similar experiments are based on a WSS platform, using a dispersive free-space optics arrangement with a bulk diffraction grating and lenses, and replacing a micro-mirror SLM [4] with a liquid-crystal on silicon (LCoS) SLM [5].…”

Section: Introductionmentioning

confidence: 99%

Sub-banded / single-sub-carrier drop-demux and flexible spectral shaping with a fine resolution photonic processor

Rudnick

Толмачев

Sinefeld

et al. 2014

2014 the European Conference on Optical Communication (ECOC)

View full text Add to dashboard Cite

Spectral processor based on arrayed waveguide grating and free-space manipulation is capable of arbitrary filtering at record metrics of 0.8GHz resolution over 200GHz span. Narrowband coherent drop-demultiplexing and controlled optical shaping is demonstrated in unison with digital sub-banding. IntroductionLinear optical signal processing operations can assist optical communications in performing myriads of operations such as wavelength multiplexing, wavelength selective switching (WSS), and complex spectral filtering for channel selection, dispersion compensation, and signal shaping. Adaptive filtering operations are particularly of interest, enabling tuning of the center wavelength, bandwidth, dispersion compensation level and signal formats. Performing these operations with a spatial light modulator (SLM) operating on spatially dispersed light has been demonstrated [1-3]. These and similar experiments are based on a WSS platform, using a dispersive free-space optics arrangement with a bulk diffraction grating and lenses, and replacing a micro-mirror SLM [4] with a liquid-crystal on silicon (LCoS) SLM [5]. The performance of these instruments is set by the spectral resolution of the dispersing arrangement (typically 8-10GHz) and the pixel pitch determining spectral addressability (few GHz). Improved performance metrics can be obtained by replacing the bulk diffraction grating with an arrayed waveguide grating (AWG) [6,7], which is designed to provide higher dispersion values over a finite free spectral range (FSR). In this work we demonstrate ×10 improvement in the photonic spectral processor performance,

show abstract

“…Increasing the cardinality of the modulation format comes at the expense of requiring a higher received optical-signal-tonoise-ratio (OSNR) and stronger forward error correction (FEC) codes, while reducing the WDM channel spacing can cause significant performance penalties due to linear crosstalk. Optical, electrical or digital filtering can be employed to constrain the bandwidth (BW) of WDM channels, thus avoiding inter-channel interference and it has been shown that digital filtering currently provides the optimum performance 1 . A root-raised cosine (RRC) filter is typically employed at the transmitter for pulseshaping, with a corresponding matched RRC filter at the receiver.…”

Section: Introductionmentioning

confidence: 99%

“…Linear and Nonlinear Impairment Mitigation in a Nyquist Spaced DP-16QAM WDM Transmission System with Full-Field DBP Robert Maher (1) , Lidia Galdino (1) , Masaki Sato (1,2) , Tianhua Xu (1) , Kai Shi (1) , Sean Kilmurray (1) , Seb J. Savory (1) , Benn C. Thomsen (1) , Robert I. Killey (1) and Polina Bayvel (1) …”

mentioning

confidence: 99%

Linear and nonlinear impairment mitigation in a Nyquist spaced DP-16QAM WDM transmission system with full-field DBP

Maher

Galdino

Sato

et al. 2014

2014 the European Conference on Optical Communication (ECOC)

View full text Add to dashboard Cite

Copies of full items can be used for personal research or study, educational, or not-for profit purposes without prior permission or charge. Provided that the authors, title and full bibliographic details are credited, a hyperlink and/or URL is given for the original metadata page and the content is not changed in any way.Publisher's statement: "© 2014 IEEE. Personal use of this material is permitted. Permission from IEEE must be obtained for all other uses, in any current or future media, including reprinting /republishing this material for advertising or promotional purposes, creating new collective works, for resale or redistribution to servers or lists, or reuse of any copyrighted component of this work in other works." A note on versions:The version presented here may differ from the published version or, version of record, if you wish to cite this item you are advised to consult the publisher's version. Please see the 'permanent WRAP URL' above for details on accessing the published version and note that access may require a subscription.

show abstract

Pulse-Shaping With Digital, Electrical, and Optical Filters—A Comparison

Cited by 58 publications

References 22 publications

Sub-Nyquist field trial using time frequency packed DP-QPSK super-channel within fixed ITU-T grid

Sub-Nyquist field trial using time frequency packed DP-QPSK super-channel within fixed ITU-T grid

Sub-banded / single-sub-carrier drop-demux and flexible spectral shaping with a fine resolution photonic processor

Linear and nonlinear impairment mitigation in a Nyquist spaced DP-16QAM WDM transmission system with full-field DBP

Contact Info

Product

Resources

About