Photonic crystal fiber based Mach-Zehnder interferometer for DPSK signal demodulation

被引：23

作者：

Du, Jiangbing ^{[1
,2
]}

Dai, Yongheng ^{[1
,2
]}

Lei, Gordon K. P. ^{[1
,2
]}

Tong, Weijun ^{[3
]}

Shu, Chester ^{[1
,2
]}

机构：

[1] Chinese Univ Hong Kong, Dept Elect Engn, Shatin, Hong Kong, Peoples R China

[2] Chinese Univ Hong Kong, Adv Photon Res Ctr, Shatin, Hong Kong, Peoples R China

[3] Yangtze Opt Fiber & Cable Co Ltd, Wuhan 430073, Peoples R China

来源：

OPTICS EXPRESS | 2010年 / 18卷 / 08期

关键词：

D O I：

10.1364/OE.18.007917

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a novel fiber-based in-line DPSK demodulator using an in-fiber Mach-Zehnder interferometer (MZI). The device is fabricated by mismatch splicing of a photonic crystal fiber (PCF) with standard single mode fibers. The spectral characteristics at different PCF lengths are analyzed. The envelope of the interference fringes show a period that is inversely proportional to the PCF length, and is attributed to the periodic coupling between the core mode and the cladding mode. Error free demodulations of 10-Gb/s RZ- and NRZ-DPSK signals have been demonstrated using the in-fiber PCF-MZI demodulator with only 3-m PCF to introduce 91-ps delay. Wideband DPSK demodulation has also been achieved. (C) 2010 Optical Society of America

引用

页码：7917 / 7922

页数：6

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