ECE Department, Purdue University, 465 Northwestern Avenue, West Lafayette, Indiana 47907, USA.
Opt Lett. 2009 Dec 15;34(24):3875-7. doi: 10.1364/OL.34.003875.
We present an electric-field cross-correlation technique that uses a pair of frequency combs to sweep phase and group delays independently without a mechanical stage. We demonstrate this technique for characterization of optical arbitrary waveforms composed of ~30 spectral lines from a 10 GHz frequency comb. Rapid data acquisition (tens of microseconds) enables interferometric spectral phase measurement of pulses subject to propagation over 20 km of optical fiber.
我们提出了一种电场互相关技术，该技术使用一对频率梳来独立地扫频相移和群延迟，而无需机械台。我们演示了这种技术用于表征由 10GHz 频率梳产生的约 30 条光谱线组成的光学任意波形。快速的数据采集（数十微秒）使得能够对经过 20 公里光纤传输的脉冲进行干涉光谱相位测量。
