Nanosecond response of Bragg deflectors in periodically poled LiNbO3

被引:34
作者
Gnewuch, H [1 ]
Pannell, CN
Ross, GW
Smith, PGR
Geiger, H
机构
[1] Univ Kent, Sch Phys Sci, Canterbury CT2 7NZ, Kent, England
[2] Univ Southampton, Optoelect Res Ctr, Southampton SO17 1BJ, Hants, England
基金
英国工程与自然科学研究理事会;
关键词
acoustic resonators; electrooptic deflectors; electrooptic switches; gratings; transient analysis;
D O I
10.1109/68.730484
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
For the first time, transients are measured for a bulk-optical Bragg-deflector based on an electrooptically (EO) induced grating in periodically poled LiNbO3 (PPLN). Optical pulse risetimes of 1.2 ns are reported with a first-order diffraction efficiency of 76% for circular Gaussian beams, The fast risetime is accounted for by a substantially suppressed elicitation of acoustic thickness modes and careful electrode design. For many applications, the device could replace both acoustooptical Bragg-deflectors and conventional EO amplitude modulators due to a fivefold reduction in risetime and fourfold reduction in drive power, respectively.
引用
收藏
页码:1730 / 1732
页数:3
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