Novel high-sensitivity coherent transceiver for optical DPSK/DQPSK signals based on heterodyne detection and electrical delay interferometer

被引：4

作者：

Kong, Deming ^{[1
]}

Li, Yan ^{[1
]}

Wu, Xia ^{[1
]}

Wang, Hui ^{[1
]}

Guo, Hongxiang ^{[1
]}

Hong, Xiaobin ^{[1
]}

Zuo, Yong ^{[1
]}

Xu, Kun ^{[1
]}

Li, Wei ^{[1
]}

Wu, Jian ^{[1
]}

Lin, Jintong ^{[1
]}

机构：

[1] Beijing Univ Posts & Telecommun, State Key Lab Informat Photon & Opt Commun, Beijing 100876, Peoples R China

来源：

CHINESE OPTICS LETTERS | 2012年 / 10卷 / 03期

基金：

中国国家自然科学基金;

关键词：

SYSTEMS; PERFORMANCE; MODULATION; QPSK; DPSK;

D O I：

10.3788/COL201210.030603

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We present a novel coherent transceiver for optical differential phase-shift keying/differential quadrature phase-shift keying (DPSK/DQPSK) signals based on heterodyne detection and electrical delay interferometer. A simulation framework is provided to predict a theoretical sensitivity level for the reported scheme. High sensitivity of -45.18 dBm is achieved for 2.5-Gb/s return-to-zero (RZ)-DPSK signal, and high sensitivities of -36.83 dBm (I tributary) and -35.90 dBm (Q tributary) are observed for 2.5-GBaud/s RZ-DQPSK signal in back-to-back configuration. Transmission for both signals over 100 km is also investigated. Experimental results are discussed and analyzed.

引用

页数：4

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