通过单个准分子脉冲制备的光纤布拉格反射器。

Fiber Bragg reflectors prepared by a single excimer pulse.

作者信息

Askins C G, Tsai T E, Williams G M, Putnam M A, Bashkansky M, Friebele E J

出版信息

Opt Lett. 1992 Jun 1;17(11):833-5. doi: 10.1364/ol.17.000833.

DOI:10.1364/ol.17.000833

PMID:19794647

Abstract

Narrow-line, permanent Bragg reflection gratings have been created in Ge-doped silica-core optical fibers by interfering beams of a single 20-ns pulse of KrF excimer laser light. Of the fibers studied, the highest reflectance value of ~2% was observed with a linewidth (FWHM) of 0.1 nm, which corresponds to a 2-mm grating length with an index modulation of ~3 x 10(-5).

摘要

通过单脉冲20纳秒的KrF准分子激光束干涉，在掺锗石英纤芯光纤中制作出了窄线宽、永久性布拉格反射光栅。在所研究的光纤中，观察到最高反射率值约为2%，其线宽（半高宽）为0.1纳米，这对应于长度为2毫米、折射率调制约为3×10⁻⁵的光栅。