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新型结构的1.3μm GexSi(1-x)/Si MQW 波导探测器的优化设计
Authors
刘育梁
杨沁清
王启明
Publication date
1 January 1996
Publisher
Abstract
首次提出了一种新型的环形1.3μm Ge_xSi_(1-x)/Si波导探测器结构.器件的主体由3μm宽环形波导构成.器件的输入端是8μm宽的波导.这两部分通过劈形波导过渡连接.各部分经过优化设计,可以同时实现高的耦合效率和高内量子效率.对于器件的材料结构、电学和光学特性进行了仔细的分析与设计.结果表明,优化设计的器件其外量子效率可达28%,比已经报道的直波导探测器的外量子效率提高2~3倍.而上升下降时间仍然保持在110ps左右
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Last time updated on 15/03/2019