Simultaneous multichannel carrier-suppressed return-to-zero to non-return-to-zero format conversion using a fiber Bragg grating

被引：7

作者：

Cao, Hui ^{[1
]}

Atai, Javid ^{[2
]}

Zuo, Jun ^{[1
]}

Yu, Yu ^{[3
,4
]}

Gbadebo, Adenowo ^{[5
]}

Xiong, Bangyun ^{[1
]}

Hou, Jie ^{[3
,4
]}

Liang, Peiying ^{[1
]}

Gao, Yao ^{[3
,4
]}

Shu, Xuewen ^{[3
,4
]}

机构：

[1] Foshan Univ, Sch Elect & Informat Engn, Foshan 528000, Peoples R China

[2] Univ Sydney, Sch Elect & Informat Engn, Sydney, NSW 2006, Australia

[3] Huazhong Univ Sci & Technol, Wuhan Natl Lab Optoelect, Wuhan 430074, Peoples R China

[4] Huazhong Univ Sci & Technol, Sch Optoelect Sci & Engn, Wuhan 430074, Peoples R China

[5] Aston Univ, Aston Inst Photon Technol, Birmingham B4 7ET, W Midlands, England

来源：

APPLIED OPTICS | 2015年 / 54卷 / 20期

基金：

中国国家自然科学基金;

关键词：

OPTICAL MODULATION FORMATS; PDM-CSRZ-QPSK; WDM TRANSMISSION; NRZ; RZ; INTERFEROMETERS; SIGNALS;

D O I：

10.1364/AO.54.006344

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel multichannel carrier-suppressed return-to-zero (CSRZ) to non-return-to-zero (NRZ) format conversion scheme based on a single custom-designed fiber Bragg grating (FBG) with comb spectra is proposed. The spectral response of each channel is designed according to the algebraic difference between the CSRZ and NRZ spectra outlines. The tailored group delays are introduced to minimize the maximum refractive index modulation. Numerical results show that four-channel 200-GHz-spaced CSRZ signals at 40 Gbits/s can be converted into NRZ signals with high Q-factor and wide-range robustness. It is shown that our proposed FBG is robust to deviations of bandwidth and central wavelength detuning. Another important merit of this scheme is that the pattern effects are efficiently reduced owing to the well-designed spectra response. (C) 2015 Optical Society of America

引用

页码：6344 / 6350

页数：7

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