Study on high-speed all-optical clock extraction using an amplified feedback laser
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1.
State Key Laboratory of Integrated Optoelectronics, Department of Electronics Engineering, Tsinghua University, Beijing 100084, China;
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2.
Key Laboratory of Semiconductor Materials Science, Institute of Semiconductors, Chinese Academy of Science, Beijing 100083, China
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Corresponding author:
LOU Cai-yun, loucy_ee@mail.tsinghua.edu.cn
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Received Date:
2010-05-13
Accepted Date:
2010-05-17
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Abstract
In order to investigate the performance of all-optical clock extraction using an amplified feedback laser, the method of single sideband phase noise intensity integration was adopted. The clock extraction from not-degraded and noise-degraded 40Gbit/s signals was experimentally demonstrated and timing jitter of the extracted clock was calculated. Besides, the locking range of amplified feedback laser was measured. As a result, the clock extracted from the not-degraded and noise-degraded signal with timing jitter of 130fs and 150fs were obtained respectively. The measured locking range of amplified feedback laser was 234MHz. The experimental results show that the amplified feedback laser-based all-optical clock extraction has a high tolerance to the noise degradation and a wide locking range. The results are important for the further development of all-optical clock extraction technology.
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