All-fiber bandpass filter with adjustable transmission using cladding-mode coupling

被引:68
作者
Starodubov, DS [1 ]
Grubsky, V
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
[3] Univ So Calif, Dept Phys & Astron, Los Angeles, CA 90089 USA
关键词
bandpass filters; gratings; optical fiber cladding; optical fiber communication; optical fiber filters;
D O I
10.1109/68.726759
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 an all-fiber bandpass filter with 2-nm bandwidth and more than 25 dB of nonresonant light suppression (ignoring sidelobes) in a 60-nm-wide spectral range around its central wavelength, This novel device uses a pair of long-period gratings to couple resonant light from the fiber core into the cladding and then back into the core. The amplitude transmission through the filter is dynamically adjustable over a 20-dB range.
引用
收藏
页码:1590 / 1592
页数:3
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