基于透射频光栅的皮秒光信号处理。

Picosecond optical signal processing based on transmissive fiber Bragg gratings.

机构信息

Institut National de la Recherche Scientifique—Énergie, Matériaux et Télécommunications, Montréal (QC) H5A 1K6, Canada.

出版信息

Opt Lett. 2013 Apr 15;38(8):1247-9. doi: 10.1364/OL.38.001247.

DOI:10.1364/OL.38.001247

Abstract

We report the experimental realization of an ultrafast (terahertz-bandwidth) linear optical signal processor, particularly a picosecond flat-top optical pulse shaper, based on a fiber Bragg grating (FBG) working in transmission. The used FBG design technique, based on a specially apodized linearly chirped FBG, enables the synthesis of readily feasible devices with processing bandwidths well in the terahertz range. The specific device reported here is successfully demonstrated for reshaping ultrashort (400 fs FWHM) optical Gaussian-like pulses into 2 ps flat-top pulses.

摘要

我们报告了一种超快（太赫兹带宽）线性光信号处理器的实验实现，特别是基于光纤布拉格光栅（FBG）在传输中工作的皮秒平顶光脉冲整形器。所使用的 FBG 设计技术基于特殊的变迹线性啁啾 FBG，可实现具有太赫兹范围内处理带宽的易于实现的器件的综合。这里报道的特定器件成功地演示了将超短（400fs FWHM）光学高斯脉冲整形为 2ps 平顶脉冲。