Liquid crystal variable optical attenuators integrated on planar lightwave circuits

被引：32

作者：

Hirabayashi, K ^{[1
]}

Wada, M ^{[1
]}

Amano, C ^{[1
]}

机构：

[1] NTT, Photon Labs, Kanagawa 2430198, Japan

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2001年 / 13卷 / 06期

关键词：

liquid crystal; modulator; planar lightwave circuit; switch; variable optical attenuators; WDM;

D O I：

10.1109/68.924039

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：

Variable optical attenuators using polymer-network liquid crystal have been integrated with the pitch of 250 mum on planar lightwave circuits. Trenches are cut in the direction perpendicular to the parallel light waveguides into planar lightwave circuits, transparent electrode is deposited inside the trenches, and the trenches are filled with polymer-network liquid crystal, The typical attenuation range is 18 dB when the driving voltage is < 20 Vrms at 1.55-mum wavelength. The power consumption is estimated to be very low (200 nW/ch).

引用

页码：609 / 611

页数：3

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