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Original scientific paper

Investigation of all-optical inverter system with NRZ and RZ modulation formats at 100 Gbit/s

Pallavi Singh ; Department of Electronics and Communication, University of Allahabad, Allahabad-211002, India
Devendra Kumar Tripathi ; Department of Electronics and Communication, University of Allahabad, Allahabad-211002, India
Narendra Kumar Shukla ; Department of Electronics and Communication, University of Allahabad, Allahabad-211002, India
Hemant Kumar Dixit ; Department of Electronics and Communication, University of Allahabad, Allahabad-211002, India


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Abstract

The paper presents the comparative investigation on non-return-to-zero and return-to-zero modulation formats for optical inverter gate at 100 Gbit/s. Various performances as eye pattern, extinction ratio and bit error rate at different bit-rate are compared based on suitability of data formats. It indicates that return-to-zero pulses are distorted in a similar pattern, therefore bit error rate is better than non-return-to-zero format. The non-return-to-zero is more affected by non-linearity of semiconductor optical amplifier hence the bit error rate is degraded and extinction ratio is improved.

Keywords

Bit error rate (BER), extinction ratio (ER), non-return-to-zero (NRZ), return-to-zero (RZ), semiconductor optical amplifier (SOA)

Hrčak ID:

126070

URI

https://hrcak.srce.hr/126070

Article data in other languages: croatian

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