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May 16, 2006TERENA Networking Conference 2006, Catania, Italy1 Parametric Amplification and Multiple Wavelength Conversion in HNLF: Experimentation and.

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Presentation on theme: "May 16, 2006TERENA Networking Conference 2006, Catania, Italy1 Parametric Amplification and Multiple Wavelength Conversion in HNLF: Experimentation and."— Presentation transcript:

1 May 16, 2006TERENA Networking Conference 2006, Catania, Italy1 Parametric Amplification and Multiple Wavelength Conversion in HNLF: Experimentation and Modelling Miroslav KARÁSEK, Jiří Kaňka, Jan Radil Josef Vojtěch experimentation modelling

2 May 16, 2006TERENA Networking Conference 2006, Catania, Italy2 Parametric Amplification and Wavelength Conversion in HNLF third- order parametric processes involve non-linear interactions among 4 optical waves and include 3 rd harmonic generation, FWM and parametric amplification 3 rd - order non-linear polarization P NL =ε 0 χ (3) :EEE χ (3) …. tensor of 3 rd – order susceptibility significant FWM occurs only if the phase mismatch Θ=(k 1 +k 2 -k 3 -k 4 )z-(ω 1 + ω 2 - ω 3 - ω 4 )t vanishes, or when Δk=k 3 +k 4 -k 1 -k 2 = (n 3 ω 3 +n 4 ω 4 - n 1 ω 1 - n 2 ω 2 )/c≈0

3 May 16, 2006TERENA Networking Conference 2006, Catania, Italy3 Parametric Amplification and Wavelength Conversion in HNLF frequency amplitude ω1ω1 ω 331 ω 221 ω 113 ω 321 ω3ω3 ω2ω2 ω 231 ω 223 ω 332 ω 112 ω 223 ω 231 ω 321 ω 123 ω 132 ω 221 ω 331 ω 113 ω 112 strong pumps signal idler

4 May 16, 2006TERENA Networking Conference 2006, Catania, Italy4 Parametric Amplification and Wavelength Conversion in HNLF λ p1 EDFA RFG 1 PC OBPF λ p2 λsλs phase modul. (λ p1 + λ p2 )/2 OSA RFG 2 PC HNLF PM OSC DEMUX 10% 95% 5% 90% 1%

5 May 16, 2006TERENA Networking Conference 2006, Catania, Italy5 Parametric Amplification and Wavelength Conversion in HNLF experiment 4 spools of HNLF, λ 0 =1532nm, 1546nm, 1560nm, and 1560nm, length 500m, 500m, 1000m, and 1500m, D’= ps/(nm 2 km),  =10.5 W -1 km -1 2 RF generators Agilent HP E8257D and E4436B RF power combiners and RF amplifier, Mini-Circuits: ZFSC , ZHL-42W Oscilloscope Infinniun 86100C 10 Gbit/s multipurpose platform Cisco Pump seeds: LC25W WDM LDs EDFA Keopsys

6 May 16, 2006TERENA Networking Conference 2006, Catania, Italy6 Parametric Amplification and Wavelength Conversion in HNLF experiment amplification of 4 WDM channels #31 - #34 signals pump idlers

7 May 16, 2006TERENA Networking Conference 2006, Catania, Italy7 Parametric Amplification and Wavelength Conversion in HNLF experiment signals idlers pump amplification of 4 WDM channels #35 - #38

8 May 16, 2006TERENA Networking Conference 2006, Catania, Italy8 Parametric Amplification and Wavelength Conversion in HNLF experiment

9 May 16, 2006TERENA Networking Conference 2006, Catania, Italy9 Parametric Amplification and Wavelength Conversion in HNLF experiment signal #35 ( nm) copy #37 ( nm)

10 May 16, 2006TERENA Networking Conference 2006, Catania, Italy10 Parametric Amplification and Wavelength Conversion in HNLF experiment Copy #33 ( nm) copy #31 ( nm)

11 May 16, 2006TERENA Networking Conference 2006, Catania, Italy11 Parametric Amplification and Wavelength Conversion in HNLF experiment parametric amplified spontaneous emission effect of pump power

12 May 16, 2006TERENA Networking Conference 2006, Catania, Italy12 Parametric Amplification and Wavelength Conversion in HNLF experiment signal in anomalous dispersion region

13 May 16, 2006TERENA Networking Conference 2006, Catania, Italy13 Parametric Amplification and Wavelength Conversion in HNLF simulations Parametric amplification and single wavelength conversion have been simulated by numerical solution of coupled-wave equations For numerical simulations of Multiple Wavelength Conversion we have used commercial packages, OptSim 3.5 (ARTIS) and OptiSystem 4.0 (Optiwave)

14 May 16, 2006TERENA Networking Conference 2006, Catania, Italy14 Parametric Amplification and Wavelength Conversion in HNLF simulations

15 May 16, 2006TERENA Networking Conference 2006, Catania, Italy15 Parametric Amplification and Wavelength Conversion in HNLF simulations effect of pump power signal gain parametric conversion gain

16 May 16, 2006TERENA Networking Conference 2006, Catania, Italy16 Parametric Amplification and Wavelength Conversion in HNLF simulations effect of pump wavelength off-set from zero dispersion wavelength

17 May 16, 2006TERENA Networking Conference 2006, Catania, Italy17 Parametric Amplification and Wavelength Conversion in HNLF simulations effect of signal power on spectral dependence of gain

18 May 16, 2006TERENA Networking Conference 2006, Catania, Italy18 Parametric Amplification and Wavelength Conversion in HNLF simulations SPM split of pumps

19 May 16, 2006TERENA Networking Conference 2006, Catania, Italy19 Parametric Amplification and Wavelength Conversion in HNLF simulation parametric amplified spontaneous emission effect of pump power

20 May 16, 2006TERENA Networking Conference 2006, Catania, Italy20 Parametric Amplification and Wavelength Conversion in HNLF Conclusions We have verified that simulation results based on numerical solution of coupled-wave equations and commercial simulation packages are in qualitative agreement with experiments of parametric amplification and wavelength conversion in HNL fibres Problems to be solved: suppression of SBS ASE elimination


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