An efficient all-fiber variable optical attenuator via acoustooptic mode coupling

被引：45

作者：

Li, Q ^{[1
]}

Au, AA ^{[1
]}

Lin, CH ^{[1
]}

Lyons, ER ^{[1
]}

Lee, HP ^{[1
]}

机构：

[1] Univ Calif Irvine, Dept Elect & Comp Engn, Henry Samueli Sch Engn, Irvine, CA 92697 USA

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2002年 / 14卷 / 11期

关键词：

acoustooptic mode coupling; single-mode fiber; variable optical attenuator;

D O I：

10.1109/LPT.2002.803895

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：

A novel broad-band variable optical attenuator is realized using acoustooptic mode coupling on a cladding etched single-mode fiber. Broad-band coupling bandwidth with low attenuation ripples is achieved by matching both the group index and dispersion parameter between the core and the LP11cl cladding modes. A single-section device exhibits a 10-dB dynamic range with attenuation ripples of <0.5 dB over a spectral range of >100 nm, a response time of 20 mus, an insertion loss of 0.3 dB, and a maximum power consumption of only 3.4 mW. Attenuation of 22 dB is obtained for a cascaded two-section device.

引用

页码：1563 / 1565

页数：3

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