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Frontiers of Optoelectronics

Front Optoelec Chin    2008, Vol. 1 Issue (3-4) : 219-222     DOI: 10.1007/s12200-008-0003-7
Research Article |
2500 km-10 Gbps RZ transmission system based on dispersion compensation CFBGs without electric regenerator
Jihong CAO1,2(), Yong CHEN1,2, Ting CHEN1,2, Shuisheng JIAN1,2
1. Key Lab of All Optical Network and Advanced Telecommunication Network of EMC, Beijing Jiaotong University; 2. Institute of Lightwave Technology, Beijing Jiaotong University
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Abstract

The characteristics of chirped fiber Bragg gratings (CFBGs) are optimized so that the ripple coefficient of the power reflectivity spectrum and group time delay are less than 1 dB and |± 15| ps, group delay is about 2600 ps/nm, polarization module dispersion is very small, PMD < 2 ps, -3 dB bandwidth is about 0.35 nm, and insertion loss is about 4–5 dBm. Using dispersion compensation CFBG, a 2500 km-10 Gbps RZ optical signal transmission system on G.652 fiber was successfully demonstrated without an electric regenerator by optimizing dispersion management and loss management. The RZ optical signal was generated through a two-stage modulation method. At 2081 km, the power penalty of transmission is about 3 dB (conditions: RZ signal, BER = 10-12, PRBS = 1023 - 1); At 2560 km, the power penalty is about 5 dB. It is superior to the system using NRZ under the same conditions.

Keywords return to zero (RZ) signal, chirped fiber Bragg grating (CFBG), dispersion compensation, power penalty     
Corresponding Authors: CAO Jihong,Email:cjhjohn@tom.com   
Issue Date: 05 September 2009
 Cite this article:   
Jihong CAO,Yong CHEN,Ting CHEN, et al. 2500 km-10 Gbps RZ transmission system based on dispersion compensation CFBGs without electric regenerator[J]. Front Optoelec Chin, 2008, 1(3-4): 219-222.
 URL:  
http://journal.hep.com.cn/foe/EN/10.1007/s12200-008-0003-7
http://journal.hep.com.cn/foe/EN/Y2008/V1/I3-4/219
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Jihong CAO
Yong CHEN
Ting CHEN
Shuisheng JIAN
Fig0  NRZ and RZ signal.(a) Pulses; (b) spectrums
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