Study of spatial-temporal characteristics of optical fiber based on ultrashort-pulse interferometry

被引：18

作者：

Rokitski, R ^{[1
]}

Sun, PC ^{[1
]}

Fainman, Y ^{[1
]}

机构：

[1] Univ Calif San Diego, Dept Elect & Comp Engn, La Jolla, CA 92093 USA

来源：

OPTICS LETTERS | 2001年 / 26卷 / 15期

关键词：

Fiber modes;

D O I：

10.1364/OL.26.001125

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We demonstrate a method for reconstruction of the modal intensity distribution of light at the output of an optical fiber. Spatial modes of the optical fiber are separated in time as a result of differences in group velocity and are detected experimentally by observation of the interference of the modal field distribution with the time-gating reference field. The detected interference patterns of the modal fields are analyzed, providing the spatial impulse response of the fiber. We also use interferometric correlation to determine the spatiotemporal characteristics of the fiber modes, such as pulse width, linear chirp, and group velocity, for each mode. (C) 2001 Optical Society of America.

引用

页码：1125 / 1127

页数：3