Simultaneous temporal characterization of telecommunication optical pulses and modulators by use of spectrograms
Simultaneous temporal characterization of telecommunication optical pulses and modulators by use of spectrograms
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DOI：
10.1364/ol.27.001315
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发表时间：
2002-08-01
期刊：
影响因子：
3.6
通讯作者：
Kang, I
中科院分区：
文献类型：
--
作者：
Dorrer, C;Kang, I
我们展示了一种简单的技术，用于同时和完整地表征电信中常用的光脉冲和时间调制器。通过对调制器选通脉冲的二维谱图的分析，得到了脉冲的电场和调制器的响应。与传统的非线性光学技术相比，测量灵敏度有了很大提高。用电吸收调制器作为时间门，精确地表征了微弱到10(-17)J的皮秒脉冲序列。文中还给出了调制器的时间分辨传输和相位。(C)2002年美国光学学会。
We demonstrate a simple technique for simultaneous and complete characterization of the optical pulses and temporal modulators commonly used in telecommunication. The electric field of a pulse and the response of a modulator are obtained from the analysis of the two-dimensional spectrogram of the pulse gated by the modulator. The measurement sensitivity is greatly improved compared with the conventional nonlinear optical techniques. Trains of picosecond pulses as weak as 10(-17) J are accurately characterized with an electroabsorption modulator as the temporal gate. The time-resolved transmission and phase of the modulator are also presented. (C) 2002 Optical Society of America.