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2015•Acta Scientiarum Naturalium Universitatis SunyatseniRequires access

Theoretical study of all-optical RZ-OOK to NRZ-OOK format conversion in uniform FBG for mixed line-rate DWDM systems

Oskars, Ozolins, Vjaceslavs, Bobrovs

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Abstract

In this work we study all-optical multi-channel return-to-zero(RZ)–on-off keying(OOK) to nonreturn-to-zero(NRZ)–OOK format conversion in single uniform fiber Bragg grating(FBG) for mixed line-rate dense wavelength-division multiplexing systems using mathematical simulations. Forty and 20 Gbit/s RZ–OOK signals with 33% and 50% duty cycles are converted to NRZ–OOK signals in single uniform FBG with 21% reflectivity.Impact of amplitude noise from FBG contrast profile on modulation format conversion efficiency is also studied.

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What this paper is about

In this work we study all-optical multi-channel return-to-zero(RZ)–on-off keying(OOK) to nonreturn-to-zero(NRZ)–OOK format conversion in single uniform fiber Bragg grating(FBG) for mixed line-rate dense wavelength-division multiplexing systems using mathematical simulations. Forty and 20 Gbit/s RZ–OOK signals with 33% and 50% duty cycles are converted to NRZ–OOK signals in single uniform FBG with 21% reflectivity.Impact of amplitude noise from FBG contrast profile on modulation format conversion efficiency is also studied.

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Available abstract

In this work we study all-optical multi-channel return-to-zero(RZ)–on-off keying(OOK) to nonreturn-to-zero(NRZ)–OOK format conversion in single uniform fiber Bragg grating(FBG) for mixed line-rate dense wavelength-division multiplexing systems using mathematical simulations. Forty and 20 Gbit/s RZ–OOK signals with 33% and 50% duty cycles are converted to NRZ–OOK signals in single uniform FBG with 21% reflectivity.Impact of amplitude noise from FBG contrast profile on modulation format conversion efficiency is also studied.

Key concepts: Amplitude-shift keying, On-off keying, Keying, Wavelength-division multiplexing, Optics, Duty cycle, Modulation (music), Fiber Bragg grating

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Theoretical study of all-optical RZ-OOK to NRZ-OOK format conversion in uniform FBG for mixed line-rate DWDM systems — Research Paper | ScholarLens