Demonstration of 100 GHz electrically tunable liquid-crystal bragg gratings for application in dynamic optical networks

被引：12
|
作者：
Mahamd Adikan, F. R. [1 ]
Gates, J. C.
Dyadyusha, A.
Major, H. E.
Gawith, C. B. E.
Sparrow, I. J. G.
Emmerson, G. D.
Kaczmarek, M.
Smith, P. G. R.
机构：
[1] Univ Southampton, Optoelectron Res Ctr, Southampton SO17 1BJ, Hants, England
[2] Univ Southampton, Sch Phys & Astron, Southampton SO17 1BJ, Hants, England
[3] Stratophase Ltd, Unit A7, Premier Ctr, Romsey SO15 9DG, Hants, England
来源：
OPTICS LETTERS | 2007年 / 32卷 / 11期
关键词：
D O I：
10.1364/OL.32.001542
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate liquid-crystal-based integrated optical devices with >140 GHz electrical tuning for potential applications in dynamic optical networks. Bragg wavelength tuning covering five 25 GHz wavelength-division multiplexing channel spacing has been achieved with 170 V (peak-to-peak) sinusoidal voltages applied across electropatterned indium. tin oxide-covered glass electrodes placed 60 urn apart. This tunability range was limited only by the initial grating strength and supply voltage level. We also observed two distinct threshold behaviors that manifest during increase of supply voltage, resulting in a hysteresis in the tuning curve for both TE and TM input light. (C) 2007 Optical Society of America
引用
收藏
页码：1542 / 1544
页数：3
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