| 利用NOLM实现连续光到归零码脉冲和波长的同时变换 |
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| 引用本文： | 余建军,陈树强,管克俭,杨伯君.利用NOLM实现连续光到归零码脉冲和波长的同时变换[J].光子学报,1999,28(3):271-275. |
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| 作者姓名： | 余建军 陈树强 管克俭 杨伯君 |
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| 作者单位： | 1. 北京邮电大学电信工程学院光通信中心,北京,100876
2. 北京邮电大学基础科学部,北京,100876 |
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| 基金项目： | 国家自然科学基金,邮电部重点基金,霍英东青年教师基金 |
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| 摘 要： | 利用非线性光学环路镜成功地实现了连续光到超短光脉冲和波长的同时变换.最大波长变换间距大于35nm.实验系统中采用增益开关分布反馈半导体激光器(GSDFB-LD)产生的超短光脉冲作为控制光,采用波长可调半导体激光器作为信号光.在变换过程中在1.55μm附近首次观测到了波长的反相变换.当信号光和控制光脉冲走离大于40.7ps时,变换信号脉冲发生畸变,变换脉冲展宽.
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| 关 键 词： | 全光波长变换 非线性光纤环路镜 光纤通信 波分复用 |
| 收稿时间： | 1998-12-15 |
| 修稿时间： | 1998-12-15 |
SIMULTANEOUS CONVERSION FOR THE CONTINUE WAVEFORM TO RETURN-TO-ZERO OPTICAL PULSE AND WAVELENGTH BASED ON NOLM |
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| Yu Jianjun,Chen Shuqiang,Guan Kejian,Yang Bojun.SIMULTANEOUS CONVERSION FOR THE CONTINUE WAVEFORM TO RETURN-TO-ZERO OPTICAL PULSE AND WAVELENGTH BASED ON NOLM[J].Acta Photonica Sinica,1999,28(3):271-275. |
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| Authors: | Yu Jianjun Chen Shuqiang Guan Kejian Yang Bojun |
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| Institution: | 1. Optical Communication Center, Beijing University of Posts and Telecommunications, P. O. Box57, Beijing 100876, China;2. The Department of Basic Science, Beijing University of Posts and Telecommunications, Beijing 100876, China |
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| Abstract: | Simultaneous conversion for the continue waveform to return to zero and wavelength
based on nonlinear optical loop mirror was achieved for the first time in China.The maximum
separation of the wavelength conversion between the control laser and the signal laser is larger
than 35nm.In our system,the gain switched distribute feed back laser diode is used as the
control pulse with the pulse width of 20nm,the wavelength tunable laser diode is used as the
signal laser.The out phase wavelength conversion was measured at 1550nm wavelength for
the first time.When the walk off time between the signal pulse and the control pulse is larger
than 40.7ps,the converted signal pulse waveform is degraded,and the width of the converted is
broadened. |
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| Keywords: | All optical wavelength conversion Nonlinear optical loop mirror Optical fiber communications Wavelength division multiplexer Probe optical pulse |
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