HIGH-SPEED WAVELENGTH TUNABLE LIQUID-CRYSTAL FILTER

被引：20
|
作者：
SNEH, A
JOHNSON, KM
LIU, JY
机构：
[1] University of Colorado, Department of Electrical and Computer Engineering, Optoelectronic Computing Systems Center, Boulder, CO 80309–0425
来源：
IEEE PHOTONICS TECHNOLOGY LETTERS | 1995年 / 7卷 / 04期
关键词：
D O I：
10.1109/68.376808
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 describe the first high-speed, continuously tunable liquid crystal optical filter suitable for wavelength division multiaccess (WDMA) optical networks. The filter utilizes chiral smectic A electroclinic liquid crystal as the active cavity material in a Fabry-Perot etalon to obtain microsecond switching speed. Using the commercially available BDH764E liquid crystal material, we demonstrate a tunable optical filter with a switching speed of less than 10 mus and a tuning range of approximately 30 nm, when the filter passband is centered at 1.55 mum.
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页码：379 / 381
页数：3
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