Experimental Investigation of All-Optical NRZ-DPSK to RZ-DPSK Format Conversion Based on TOAD

We propose and experimentally demonstrate a novel all-optical non-return-to-zero differential-phase-shift-keying （NRZ-DPSK） to return-to-zero differentiM-phase-shift-keying （RZ-DPSK） format conversion scheme. This scheme is based on the terahertz optical asymmetric demultiplexer （TOAD）. A 10 Gb/s co...

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Bibliographic Details
Published inChinese physics letters Vol. 32; no. 11; pp. 56 - 62
Main Author 毛雅亚 盛新志 吴重庆 张天雍 王颖
Format Journal Article
LanguageEnglish
Published Chinese Physical Society and IOP Publishing 01.11.2015
Subjects
Conversion
DPSK信号
Eyes
Format
Optical asymmetric demultiplexers
Receivers
Spectra
TOAD
Tuning
全光
太赫兹光非对称解复用器
实验演示
差分相移键控
接收机灵敏度
格式转换
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ISSN0256-307X
1741-3540
DOI10.1088/0256-307X/32/11/114204

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Summary:We propose and experimentally demonstrate a novel all-optical non-return-to-zero differential-phase-shift-keying （NRZ-DPSK） to return-to-zero differentiM-phase-shift-keying （RZ-DPSK） format conversion scheme. This scheme is based on the terahertz optical asymmetric demultiplexer （TOAD）. A 10 Gb/s converted RZ-DPSK signal is obtained with a wide duty cycle tuning range from 16% to 66%. For all converted RZ-DPSK signals, the receiver sensitivities at BER of 10-9 are 0.4 to 1.7dB higher compared with the original NRZ-DPSK signal. The clear and open eye diagrams are presented to demonstrate the high quality format conversion performance. Moreover, the optical spectra show that this conversion is in a wavelength-preserving operation.
Bibliography:11-1959/O4
MAO Ya-Ya, SHENG Xin-Zhi, WU Chong-Qing , ZHANG Tian-Yong,WANG Ying（Institute of Optical Information, and Key Lab of Luminescence and Optical Information Technology （Ministry of Education）, Beijing Jiaotong University, Beijing 100044）
We propose and experimentally demonstrate a novel all-optical non-return-to-zero differential-phase-shift-keying （NRZ-DPSK） to return-to-zero differentiM-phase-shift-keying （RZ-DPSK） format conversion scheme. This scheme is based on the terahertz optical asymmetric demultiplexer （TOAD）. A 10 Gb/s converted RZ-DPSK signal is obtained with a wide duty cycle tuning range from 16% to 66%. For all converted RZ-DPSK signals, the receiver sensitivities at BER of 10-9 are 0.4 to 1.7dB higher compared with the original NRZ-DPSK signal. The clear and open eye diagrams are presented to demonstrate the high quality format conversion performance. Moreover, the optical spectra show that this conversion is in a wavelength-preserving operation.
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ISSN:0256-307X
1741-3540
DOI:10.1088/0256-307X/32/11/114204