Fabrication of long-period fiber gratings with no harmonics

被引：34

作者：

Grubsky, V ^{[1
]}

Skorucak, A

Starodubov, DS

Feinberg, J

机构：

[1] D STAR Technol Inc, Manhattan Beach, CA 90266 USA

[2] Univ So Calif, Dept Phys, Los Angeles, CA 90089 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 1999年 / 11卷 / 01期

关键词：

fiber gratings; index of refraction; optical fiber filters; optical fibers;

D O I：

10.1109/68.736403

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We demonstrate a method to fabricate spectrally clean long-period gratings in optical fibers. Because the photosensitivity of glass is nonlinear, even a sinusoidal light pattern will generate harmonic gratings, and these higher order gratings can cause unwanted resonances. We solve this problem by first measuring the photosensitivity of the glass and then scanning the fiber across an ultraviolet light beam at a variable speed under computer control. The resulting spectra are free from extraneous resonances caused by harmonics of the fundamental grating period.

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页码：87 / 89

页数：3

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