Investigation of SOA-based wavelength conversion at 80 Gb/s using bandpass filtering

Bramerie, Laurent; Clark, Andrew; Girault, Gwenaëlle; Lobo, Sébastien; Guignard, C.; Roncin, Vincent; Kennedy, Brendan F.; Maguire, P.J.; Fève, Sylvain; Clouet, Benoît; Ginovart, Frédéric; Barry, Liam P.; Simon, Jean‐Claude

doi:10.1109/cleo.2006.4627878

Cited by 3 publications

(6 citation statements)

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“…We can note that these observations are consistent with the results presented in the literature, demonstrating the RSF best performances at a bit rate not greater than 10 Gbit/s [19] and achieving high bit rate performances only with the BSF technique [12,13,17,23,27] or the combination of both techniques [24].…”

Section: Bit Error Rate Measurementssupporting

confidence: 91%

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Analysis of bit rate dependence up to 80Gbit/s of a simple wavelength converter based on XPM in a SOA and a shifted filtering

Girault

Clarke

Reid

et al. 2008

Optics Communications

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This paper provides the analysis of wavelength converted pulses obtained with a simple semiconductor optical amplifier (SOA)-based wavelength conversion scheme, which exploits cross phase modulation (XPM) in an SOA in conjunction with shifted filtering. The analysis includes experimental measurements of the back-to-back system performances as well as frequency-resolved optical gating (FROG) characterisations of the wavelength converted pulses. These measurements are implemented at different bit rates up to 80 Gbit/s and for both red and blue shifted filtering, particularly showing different patterning effect dependences of red and blue shifting techniques. This analysis is developed by the addition of a numerical study which corroborates the experimental results. A further understanding of the different performances of red and blue filtering techniques, presented in the literature, can thus be proposed.The placement of the filter to undertake red shifted filtering (RSF) allows us to achieve very short pulse widths but high bit rate operation is limited by pattern effects. The blue shifted filtering (BSF) technique shows optimum performance as regards to patterning effects even if the wavelength converted pulses can be larger . 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 thus be proposed. The placement of the filter to undertake red shifted filtering (RSF) allows us to achieve very short pulse widths but high bit rate operation is limited by pattern effects.

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Section: Bit Error Rate Measurementssupporting

confidence: 91%

“…A BER of less than 10 -9 was obtained at 80 Gbit/s with BSF as previously presented in [27]. A penalty of 2.5 dB compared to the back-to-back curve was observed at a BER of 10 -9 .…”

Section: Bit Error Rate Measurementssupporting

confidence: 68%

Analysis of bit rate dependence up to 80Gbit/s of a simple wavelength converter based on XPM in a SOA and a shifted filtering

Girault

Clarke

Reid

et al. 2008

Optics Communications

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“…The possibility to generate a non-inverted WC signal using XGM and XPM by directly filtering out either blue or red components out of the inverted probe signal at the output of an SOA based WC has been previously suggested [4] and demonstrated [5,6] at speeds up to 80Gb/s with considerable penalties (5dB OSNR penalty). In this method, the filter strongly suppresses the Continuous Wave (CW) component, dominating the inverted WC signal, replacing the need for a second stage notch filter used by schemes described earlier [2].…”

Section: Introductionmentioning

confidence: 99%

“…The filter further slices the optical spectrum of the inverted signal to leave only the spectral components at either lower or higher wavelengths, termed blue and red components respectively. The relatively large penalties, reported so far, were mainly due to the non availability of filters which have both a broad pass band and a sharp roll-off [5,6]. Thus larger than required detuning of the filter's center frequency from the original CW probe signal was needed in order to obtain the suppression of the CW component resulting in large attenuation of the remaining spectral components and a poor Optical Signal to Noise Ratio (OSNR).…”

Section: Introductionmentioning

confidence: 99%

Enhanced 40 and 80 Gb/s wavelength conversion using a rectangular shaped optical filter for both red and blue spectral slicing

Raz¹,

Herrera²,

Dorren³

2009

Opt. Express

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By using a tunable filter with tunability of both bandwidth and wavelength and a very sharp filter roll-off, considerable improvement of all optical Wavelength Conversion, based on Cross Gain and Phase Modulation effects in a Semiconductor Optical Amplifier and spectral slicing, is shown. At 40 Gb/s slicing of blue spectral components is shown to result in a small penalty of 0.7 dB, with a minimal eye broadening, and at 80 Gb/s the low demonstrated 0.5 dB penalty is a dramatic improvement over previously reported wavelength converters using the same principal. Additionally, we give for the first time quantitative results for the case of red spectral slicing at 40 Gb/s which we found to have only 0.5 dB penalty and a narrower time response, as anticipated by previously published theoretical papers. Numerical simulations for the dependence of the eye opening on the filter characteristics highlight the importance of the combination of a sharp filter roll-off and a broad passband.

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“…It has been previously suggested [ 3] and demonstrated [ 4] that 80Gb/s direct non-inverted wavelength conversion can be achieved by filtering of only blue components out of the inverted probe signal coming out of an SOA based Wavelength Conversion (WC). However, limitation due to spectral shape of filters applied resulted in high penalties as the moderate roll-off and limited bandwidth of the filter resulted in poor Optical Signal to Noise Ratio (OSNR) [ 4]. Since the process of WC can be repeated many times during the flight of the optical signal in an all optical network, it is imperative that power penalty incurred after each WC is minimized.…”

Section: Introductionmentioning

confidence: 99%

Low penalty 80Gb/s non-inverted wavelength conversion using a broad rectangular shaped optical filter

Raz

Calabretta

Herrera

et al. 2008

2008 34th European Conference on Optical Communication

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Low penalty 80 Gb/s non-inverted wavelength conversion using a broad rectangular shaped optical filter Raz, O.; Calabretta, N.; Herrera Llorente, J.; Tangdiongga, E.; Dorren, H.J.S. 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 Citation for published version (APA):Raz, O., Calabretta, N., Herrera Llorente, J., Tangdiongga, E., & Dorren, H. J. S. (2008). Low penalty 80 Gb/s non-inverted wavelength conversion using a broad rectangular shaped optical filter. In Proceedings of the 34th European Conference and Exhibition on Optical Communication (ECOC 2008), 21-25 September 2008 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. AbstractWe demonstrate non-inverted wavelength conversion at 80Gb/s based on cross-phase modulation in a SOA. Using a flat-top 6nm broad filter with sharp roll-off we achieve a penalty of only 0.5dB IntroductionAll-optical wavelength converters (AOWCs) are likely to become essential building blocks for future dynamic high-capacity optical networks [ 1]. Semiconductor optical amplifiers (SOAs) have attracted considerable research interest for wavelength conversion due to their integration potential and power efficiency. Error-free wavelength conversion based on cross-gain and cross-phase modulation in a single SOA has been demonstrated at 320 Gb/s at the expense of a large penalty mainly caused by the excessive losses by a polarity inverter required for realizing non-inverted wavelength conversion [ 2]. It has been previously suggested [ 3] and demonstrated [ 4] that 80Gb/s direct non-inverted wavelength conversion can be achieved by filtering of only ...

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Investigation of SOA-based wavelength conversion at 80 Gb/s using bandpass filtering

Cited by 3 publications

References 4 publications

Analysis of bit rate dependence up to 80Gbit/s of a simple wavelength converter based on XPM in a SOA and a shifted filtering

Analysis of bit rate dependence up to 80Gbit/s of a simple wavelength converter based on XPM in a SOA and a shifted filtering

Enhanced 40 and 80 Gb/s wavelength conversion using a rectangular shaped optical filter for both red and blue spectral slicing

Low penalty 80Gb/s non-inverted wavelength conversion using a broad rectangular shaped optical filter

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