具有可调带宽和频率间隔的扁平矩形频率梳生成。

Flat, rectangular frequency comb generation with tunable bandwidth and frequency spacing.

作者信息

Preussler Stefan, Wenzel Norman, Schneider Thomas

出版信息

Opt Lett. 2014 Mar 15;39(6):1637-40. doi: 10.1364/OL.39.001637.

DOI:10.1364/OL.39.001637

Abstract

The generation of flat, rectangular frequency combs with tunable frequency spacing and bandwidth is demonstrated. Therefore, several lines or sidebands are extracted out of an existing frequency comb, for example a femtosecond fiber laser. Subsequently, these lines are processed via two Mach-Zehnder modulators in order to generate a flat frequency comb with tunable frequency spacing. Optical frequency combs with various spacing and a maximum bandwidth of 260 GHz are generated. However, much higher bandwidth can be reached easily. The overall flatness of the generated combs is within 0.6 dB.

摘要

本文展示了具有可调频率间隔和带宽的扁平矩形频率梳的产生。具体而言，从现有的频率梳（例如飞秒光纤激光器）中提取出若干谱线或边带。随后，通过两个马赫-曾德尔调制器对这些谱线进行处理，以生成具有可调频率间隔的扁平频率梳。产生了具有各种间隔且最大带宽为260 GHz的光学频率梳。然而，很容易实现更高的带宽。所产生频率梳的整体平坦度在0.6 dB以内。