| All-optical clock recovery from 10-Gb/s NRZ data and NRZ to RZ format conversion |
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| 作者姓名： | 尹丽娜 闫玉梅 周云峰 伍剑 林金桐 |
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| 作者单位： | Key Laboratory of Optical Communication and Lightwave Technologies of MOE Beijing University of Posts and Telecommunications，Beijing 100876，Key Laboratory of Optical Communication and Lightwave Technologies of MOE，Beijing University of Posts and Telecommunications，Beijing 100876，Key Laboratory of Optical Communication and Lightwave Technologies of MOE，Beijing University of Posts and Telecommunications，Beijing 100876，Key Laboratory of Optical Communication and Lightwave Technologies of MOE，Beijing University of Posts and Telecommunications，Beijing 100876，Key Laboratory of Optical Communication and Lightwave Technologies of MOE，Beijing University of Posts and Telecommunications，Beijing 100876 |
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| 基金项目： | This work was supported by the National Natural Science Foundation of China (No. 90401025)
Key Project of MOE (No. 105036) |
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| 摘 要： | A non-return-to-zero (NRZ) to pseudo-return-to-zero (PRZ) converter consisting of a semiconductor optical amplifier (SOA) and an arrayed waveguide grating (AWG) is proposed, by which the enhancement of clock frequency component and clock-to-data suppression ratio of the NRZ data are evidently achieved. All-optical clock recovery from NRZ data at 10 Gb/s is successfully demonstrated with the proposed NRZ-to-PRZ converter and a mode-locked SOA fiber laser. Furthermore, NRZ-to-RZ format conversion of 10 Gb/s is realized by using the recovered clock as the control light of terahertz optical asymmetric demultiplexer (TOAD), which further proves that the proposed clock recovery scheme is applicable.
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