EFFECT OF ANNEALING ON PHOTOREFRACTIVE DAMAGE IN TITANIUM-INDIFFUSED LINBO(3) MODULATORS

被引:14
作者
BETTS, GE
ODONNELL, FJ
RAY, KG
机构
[1] Lincoln Laboratory, Massachusetts Institute of Technology, Lexington
关键词
D O I
10.1109/68.275431
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 have evaluated photorefractive effects at 1320-nm and 1064-nm optical wavelengths in interferometric modulators built using Ti-indiffused waveguides in lithium niobate. The sensitivity to photorefractive damage is substantially increased by anneals in non-oxygen atmospheres at temperatures greater-than-or-equal-to 200-degrees-C. The sensitivity can be reduced by an anneal in oxygen. Properly annealed modulators operated for 150 h with 400 mW at 1320 nm with no photorefractive effects other than a 3-degrees change in bias point.
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收藏
页码:211 / 213
页数:3
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