All-optical, wavelength and bandwidth preserving, pulse delay based on parametric wavelength conversion and dispersion.
All-optical, wavelength and bandwidth preserving, pulse delay based on parametric wavelength conversion and dispersion.
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DOI：
10.1364/opex.13.007872
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发表时间：
2005-10
期刊：
影响因子：
3.8
通讯作者：
J. Sharping;Yoshitomo Okawachi;J. van Howe;Chris Xu;Yan Wang;A. Willner;A. Gaeta
中科院分区：
文献类型：
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作者：
J. Sharping;Yoshitomo Okawachi;J. van Howe;Chris Xu;Yan Wang;A. Willner;A. Gaeta
我们提出了一种基于波长转换、群速度色散和波长再转换的全光可调谐光纤延迟器。该器件在1550 nm附近工作，产生大于800 ps的延迟。我们的延迟技术具有的综合优势，连续控制的范围广泛的延迟从皮秒到纳秒，为宽范围的信号脉冲持续时间（ps至10 ns），和输出信号的波长和带宽是相同的输入。该方案可以潜在地产生1000的分数延迟，并且适用于幅度和相移键控数据。
We demonstrate an all-optical tunable delay in fiber based on wavelength conversion, group-velocity dispersion, and wavelength reconversion. The device operates near 1550 nm and generates delays greater than 800 ps. Our delay technique has the combined advantages of continuous control of a wide range of delays from picoseconds to nanoseconds, for a wide range of signal pulse durations (ps to 10 ns), and an output signal wavelength and bandwidth that are the same as that of the input. The scheme can potentially produce fractional delays of 1000 and is applicable to both amplitude- and phase-shift keyed data.