All-optical RZ to NRZ data format and wavelength conversion using an injection locked laser

Chi-Wai Chow; C. S. Wong; H. K. Tsang

doi:10.1016/S0030-4018(03)01691-2

All-optical RZ to NRZ data format and wavelength conversion using an injection locked laser

Chi-Wai Chow^*, C. S. Wong, H. K. Tsang

^*Corresponding author for this work

Department of Photonics

Research output: Contribution to journal › Article › peer-review

13 Scopus citations

Abstract

All-optical RZ-to-NRZ data format conversion using a repetition-rate doubler and an injection-locked Fabry-Perot laser diode is demonstrated at 10 Gb/s. Conversion of signal wavelength is achieved simutaneouly. At a bit-error-rate of 10^-9, a power penalty of 2.5 dB was observed in the format conversion. The spectral width of the data-format converted NRZ signal (14 GHz) was reduced compared with the input RZ signal (25 GHz), making the converted signal more spectrally efficient for use in dense-wavelength-division-multiplexed (DWDM) access networks. We also describe numerical analysis which indicates the optimum delay in the repetition-rate doubler for format conversion.

Original language	English
Pages (from-to)	309-313
Number of pages	5
Journal	Optics Communications
Volume	223
Issue number	4-6
DOIs	https://doi.org/10.1016/S0030-4018(03)01691-2
State	Published - 1 Aug 2003

Keywords

Format conversion
Injection-locked laser
Wavelength conversion
WDM communications

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title = "All-optical RZ to NRZ data format and wavelength conversion using an injection locked laser",

abstract = "All-optical RZ-to-NRZ data format conversion using a repetition-rate doubler and an injection-locked Fabry-Perot laser diode is demonstrated at 10 Gb/s. Conversion of signal wavelength is achieved simutaneouly. At a bit-error-rate of 10-9, a power penalty of 2.5 dB was observed in the format conversion. The spectral width of the data-format converted NRZ signal (14 GHz) was reduced compared with the input RZ signal (25 GHz), making the converted signal more spectrally efficient for use in dense-wavelength-division-multiplexed (DWDM) access networks. We also describe numerical analysis which indicates the optimum delay in the repetition-rate doubler for format conversion.",

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AU - Chow, Chi-Wai

AU - Wong, C. S.

AU - Tsang, H. K.

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N2 - All-optical RZ-to-NRZ data format conversion using a repetition-rate doubler and an injection-locked Fabry-Perot laser diode is demonstrated at 10 Gb/s. Conversion of signal wavelength is achieved simutaneouly. At a bit-error-rate of 10-9, a power penalty of 2.5 dB was observed in the format conversion. The spectral width of the data-format converted NRZ signal (14 GHz) was reduced compared with the input RZ signal (25 GHz), making the converted signal more spectrally efficient for use in dense-wavelength-division-multiplexed (DWDM) access networks. We also describe numerical analysis which indicates the optimum delay in the repetition-rate doubler for format conversion.

AB - All-optical RZ-to-NRZ data format conversion using a repetition-rate doubler and an injection-locked Fabry-Perot laser diode is demonstrated at 10 Gb/s. Conversion of signal wavelength is achieved simutaneouly. At a bit-error-rate of 10-9, a power penalty of 2.5 dB was observed in the format conversion. The spectral width of the data-format converted NRZ signal (14 GHz) was reduced compared with the input RZ signal (25 GHz), making the converted signal more spectrally efficient for use in dense-wavelength-division-multiplexed (DWDM) access networks. We also describe numerical analysis which indicates the optimum delay in the repetition-rate doubler for format conversion.

KW - Format conversion

KW - Injection-locked laser

KW - Wavelength conversion

KW - WDM communications

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