|
篇目详细内容 |
|
【篇名】 |
All-optical clock extraction for CSRZ modulation data |
|
【刊名】 |
Frontiers of Optoelectronics in China |
|
【刊名缩写】 |
Front. Optoelectron. China |
|
【ISSN】 |
1674-4128 |
|
【EISSN】 |
1674-4594 |
|
【DOI】 |
10.1007/s12200-009-0009-9 |
|
【出版社】 |
Higher Education Press and Springer-Verlag |
|
【出版年】 |
2009 |
|
【卷期】 |
2
卷1期 |
|
【页码】 |
21-27
页,共
7
页 |
|
【作者】 |
Zhixin CHEN;
Xin JIN;
Huaihu CAO;
Jian WANG;
|
|
【关键词】 |
all-optical signal processing; all-optical clock extraction; semiconductor optical amplifier (SOA); cross gain modulation (XGM); carrier-suppressed return-to-zero (CSRZ) modulation |
【摘要】 |
|
This paper demonstrates a theoretical investigation on clock extraction from carrier-suppressed return-to-zero (CSRZ) modulation format data at 40Gbit/s by using a semiconductor optical amplifier (SOA)-based ring laser. A completely numerical analysis about the clock characteristics at 40Gbit/s is done, which is an effective guide for the experiment and necessary to optimize system performance. The crucial parameters, including the pulse width, energy of the CSRZ data signals and influence of SOA bias current, are analyzed because they determine the quality of the recovered clock pulses. Meanwhile, simulation results show that high-quality clock extraction from 27─1 pseudo-random binary sequence (PRBS) CSRZ data at 40Gbit/s can be achieved by using higher power assisting continuous-wave (CW) light into a SOA-based ring laser. |
