Efficient Second Harmonic Generation in a Si3N4 Microring

Xiyuan Lu,Gregory Moille,Ashutosh Rao,Daron Westly,Qing Li,Kartik Srinivasan

2020 Conference on Lasers and Electro-Optics (CLEO)（2020）

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摘要

We demonstrate efficient second harmonic generation in a silicon nitride microring, through perfect phase matching of a photogalvanic DC-field-induced χ ⁽²⁾ process. The efficiency of 2, 500 %/W is > 100 × larger than the previous record in silicon photonics.

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关键词

photogalvanic DC-field-induced χ(2) process,phase matching,silicon nitride microring,second harmonic generation,Si3N4

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