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可调马赫-曾德尔干涉仪型差分相移键控解调器 被引量：10

Tunable Differential Phase-Shift Keying Demodulator Using the Mach-Zehnder Interferometer
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摘要 研制了一种基于光纤马赫-曾德尔干涉仪(MZI)的可调差分相移键控(DPSK)解调器,其具有插入损耗低、隔离度高、稳定性强和相位连续可调的优点。从理论上对差分相移键控信号解调的工作原理进行了详细分析。温度控制系统对光纤臂进行温度控制,温控范围为20℃,精度可达0.1℃。实验中实现了40Gb/s差分相移键控信号的解调,解调信号消光比为14.5dB,温度控制实现了输出结果的长时间稳定,并可在相长干涉和相消干涉之间转换。 Tunable differential phase-shift keying （DPSK） demodulator based on fiber Mach-Zehnder interferometer （MZI） is investigated, which has advantages of low insertion loss, high isolation, good stability, and tunable phase. Operation principle for DPSK demodulation is analyzed. Temperature of the fiber arm is set by the temperature control system, in which the tuning range is 20 ℃ and the resolution is 0.1 ℃. In the experiment, 40 Gb/s DPSK signal was demodulated successfully, and the extinction of the demodulated signal is 14.5 dB. With the help of temperature control, the experimental results have a long-time stability and can be switched between constructive interference and destructive one.
作者 齐鸣 张新亮 黄德修
机构地区 华中科技大学武汉光电国家实验室(筹)和光电子科学与工程学院
出处 《中国激光》 EI CAS CSCD 北大核心 2006年第12期1643-1647,共5页 Chinese Journal of Lasers
基金 教育部新世纪优秀人才支持计划(NCET-04-0715)资助项目。
关键词 光通信 差分相移键控解调器 马赫-曾德尔干涉仪 温度控制 optical communication differential phase-shift keying demodulator Mach-Zehnder interferometer temperature control
分类号 TN929.11 [电子电信—通信与信息系统]
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参考文献15

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二级参考文献32

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中国激光
2006年 第12期

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