Realization of high interference visibility based on silica-on-silicon planar lightwave circuit

Jin You; Yue Wang; Shaoyang LiJunming AnQin Han

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Realization of high interference visibility based on silica-on-silicon planar lightwave circuit

机译：Realization of high interference visibility based on silica-on-silicon planar lightwave circuit

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摘要

Quantum key distribution can realize unconditional security of communication. Here, a quantum decoding chip based on silica-on-silicon planar lightwave circuit (PLC) platform, which is compatible for multiprotocol has been demonstrated. PLC technology provides stability, high integration, and practicality for the chip, whereas silica-on-silicon material makes it low loss and low cost. The chip is integrated with three variable optical splitters, two asymmetric Mach-Zehnder interferometers, and four variable directional couplers. The interference visibility is investigated by self-interfering method, and the results showed it is high to 98.2% under temperature control. The extinction ratio for the phase states is kept between 23 and 25 dB for 6 h without active phase correction.

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来源
《Optical Engineering》 |2021年第12期|125105-1-125105-10|共10页
作者
Jin You; Yue Wang; Shaoyang LiJunming AnQin Han;
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作者单位

Chinese Academy of Sciences, State Key Laboratory of Integrated Optoelectronics, Institute of Semiconductors, Beijing, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
关键词
silica-on-silicon; variable optical splitter; asymmetric Mach-Zehnder interferometer; interference visibility; extinction ratio;

Realization of high interference visibility based on silica-on-silicon planar lightwave circuit

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