Miroslav Karásek Jiří Kaňka Pavel Honzátko Josef Vojtěch Jan Radil 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF.

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Presentation transcript:

Miroslav Karásek Jiří Kaňka Pavel Honzátko Josef Vojtěch Jan Radil 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF

May 30, 2006 CEF workshop, Prague, Czech Republic 2 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Outline Motivation Experimental results Conclusions

May 30, 2006 CEF workshop, Prague, Czech Republic 3 Current optical networks perform multicasting in network nodes in costly high-speed O-E-O transponders All-optical wavelength conversion (WC) is an attractive technology for WDM multicasting Optical multicasting is an important issue in optical grid networks Several methods for all-optical WC has been demonstrated based on cross-absorption in EA modulators, delay interferometers in SOA, FWM in SOA, pulsed pumped parametric amplification and slicing of SC generated in HNLF 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Motivation

May 30, 2006 CEF workshop, Prague, Czech Republic 4 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF

May 30, 2006 CEF workshop, Prague, Czech Republic 5 Signal source: passively mode-locked LD, PMLLD (with saturable absorber) generating sech 2 shaped pulses with FWHM  3ps AC autocorrelator High-power EDFA 1 and pre-amplifier EDFA 2 Optical Time Domain Multiplexer (OTDM) Digital sampling oscilloscope Infiniium 54855A with optical heads to 10 GHz 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF

May 30, 2006 CEF workshop, Prague, Czech Republic 6 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Autocorrelation traces before and after filtering Supercontinuum generated by propagating expanded pulses through 1500m of HNLF

May 30, 2006 CEF workshop, Prague, Czech Republic 7 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Optical power of the SC sliced at nm Eye diagram of the SC sliced at nm

May 30, 2006 CEF workshop, Prague, Czech Republic 8 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Results of numerical simulations

May 30, 2006 CEF workshop, Prague, Czech Republic 9 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF

May 30, 2006 CEF workshop, Prague, Czech Republic Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Autocorrelation trace at the HNLF input SC spectra for different HNLFs

May 30, 2006 CEF workshop, Prague, Czech Republic Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Optical power of the slice at nm Autocorrelation trace of the slice at nm

May 30, 2006 CEF workshop, Prague, Czech Republic Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF SC spectrum for different HNLFs simulation Sliced SC after demultiplexing/ multiplexing of 11 ITU channels

May 30, 2006 CEF workshop, Prague, Czech Republic 13 We investigated, both experimentally and by numerical simulation, all-optical multi-wavelength conversion of 10 Gb/s NRZ signals based on 2-pumps FWM 10 Gb/s and 40 Gb/s RZ all-optical multi-casting system was based on slicing the supercontinuum generated in HNLF. Simulations were performed with OptSim 3.5 and reasonable quantitative agreement between experimental and numerical results was achieved using realistic data given by the HNLF manufacturer 40 Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Conclusions

May 30, 2006 CEF workshop, Prague, Czech Republic Gb/s Multi-Wavelength Conversion Based on Nonlinear Effects in HNLF Thank you for your attention!