A simple and robust 40-Gb/s wavelength converter using fiber cross-phase modulation and optical filtering

Olsson, B.-E.; Öhlen, P.; Rau, L.; Blumenthal, D.J.

doi:10.1109/68.853522

Cited by 142 publications

(54 citation statements)

References 9 publications

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“…The proposed wavelength conversion scheme is based on the well-known frequency shifting effect of SPM in a highly non-1041-1135/$25.00 © 2008 IEEE linear fiber (HNLF) (see for example [7] and [8]), which can be mathematically described by (1) where is the SPM frequency shift induced on the signal itself, and are the nonlinear coefficient and effective length of the fiber, respectively, is the signal peak power, and is its corresponding normalized pulse envelope. Equation (1) shows that the leading (trailing) edge of a saw-tooth pulse, which has a linear slope, induces a constant red (blue) frequency shift in its spectrum due to SPM.…”

Section: Principle Of Operationmentioning

confidence: 99%

See 1 more Smart Citation

An Efficient Wavelength Converter Exploiting a Grating-Based Saw-Tooth Pulse Shaper

Parmigiani

Ibsen

et al. 2008

IEEE Photon. Technol. Lett.

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Abstract-We experimentally demonstrate the generation of picosecond triangular optical pulses using a superstructured fiber Bragg grating and show experimentally that use of this pulse shape can provide a three-fold improvement in conversion efficiency relative to the use of Gaussian pulses with similar pulsewidths when used in a wavelength conversion scheme based on self-phase modulation and subsequent offset filtering.Index Terms-Fiber Bragg grating, highly nonlinear fiber (HNLF), optical Kerr effect, optical pulse shaping, self-phase modulation (SPM).

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Section: Principle Of Operationmentioning

confidence: 99%

“…Note that this pulse shape, which can be used to generate constant wavelength shifts for signals through both SPM and cross-phase modulation effects, is of great interest for various other applications. Amongst these, optical time-division add-drop multiplexing is an important example [7], [8].…”

Section: Introductionmentioning

confidence: 99%

An Efficient Wavelength Converter Exploiting a Grating-Based Saw-Tooth Pulse Shaper

Parmigiani

Ibsen

et al. 2008

IEEE Photon. Technol. Lett.

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“…All these functionalities can be achieved through all optical fast nonlinearities as cross-phase modulation (XPM), four wave mixing (FWM) and self phase modulation (SPM) in optical devices. Several approaches, in fact, have been proposed based on transferring the modulation to a carrier [3][4][5] or on broad spectrum generation with new carries [5], in semiconductor optical amplifiers [3] and optical fibers [3][4][5][6]. In this paper we present experimental results on high speed demultiplexing from 40 and 80 GHz to 10 GHz by means of XPM.…”

Section: Introductionmentioning

confidence: 94%

All-Optical Signal Processing Subsystems Based on Highly Non-linear Fibers and Their Limitations for Networking Applications

Karásek¹,

Teixeira

Beleffi

et al. 2007

Optical Network Design and Modeling

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Abstract. All optical signal processing is a fundamental concept on which the next generation networks will be based. Implementation of key functionalities as multiwavelength regeneration, frequency conversion and high data rate demultiplexing performed all optically becomes a primary target in current research scenario. In this work, demultiplexing of high data rate signals is demonstrated. The base for the functionality is the cross phase modulation occurring in a span of highly non linear fiber. This fiber is designed to have low birefringence, therefore quite adapted for processing polarization dependent processes, which are the base for the achieved functionality. Demultiplexing from 40GHz and 80GHz to 10GHz is demonstrated.

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“…However the output data polarity is still inverted and the extinction ratio is insufficient. Cho et al [14] presented a similar scheme but the proposed setup preserves the polarity of the input data by spectrally shifting the filter further from the continuous wave probe signal, thus primarily exploiting XPM in the SOA, in the same way as using phase modulation in a fibre associated with a shifted filter [15,16]. This kind of device gives an enhanced extinction ratio and has enabled operation at high bit rates [17].…”

Section: Introductionmentioning

confidence: 99%

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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A simple and robust 40-Gb/s wavelength converter using fiber cross-phase modulation and optical filtering

Cited by 142 publications

References 9 publications

An Efficient Wavelength Converter Exploiting a Grating-Based Saw-Tooth Pulse Shaper

An Efficient Wavelength Converter Exploiting a Grating-Based Saw-Tooth Pulse Shaper

All-Optical Signal Processing Subsystems Based on Highly Non-linear Fibers and Their Limitations for Networking Applications

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

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