An on-chip photon-pair source with negligible two-photon absoprtion

被引：5

作者：

Sugiura, Kenta ^{[1
]}

Okamoto, Ryo ^{[1
,2
]}

Zhang, Labao ^{[3
]}

Kang, Lin ^{[3
]}

Chen, Jian ^{[3
]}

Wu, Peiheng ^{[3
]}

Chu, Sai T. ^{[4
]}

Little, Brent E. ^{[5
]}

Takeuchi, Shigeki ^{[1
]}

机构：

[1] Kyoto Univ, Dept Elect Sci & Engn, Nishikyo Ku, Kyoto 6158510, Japan

[2] Japan Sci & Technol Agcy, PRESTO, 4-1-8 Honcho, Kawaguchi, Saitama 3320012, Japan

[3] Nanjing Univ, Res Inst Superconductor Elect, Nanjing 210023, Jiangsu, Peoples R China

[4] City Univ Hong Kong, Dept Phys, Tat Chee Ave, Hong Kong, Peoples R China

[5] Chinese Acad Sci, Xian Inst Opt & Precis Mech, State Key Lab Transient Opt & Photon, Xian, Shaanxi, Peoples R China

来源：

APPLIED PHYSICS EXPRESS | 2019年 / 12卷 / 02期

关键词：

MICRO-RING RESONATOR; SILICON-NITRIDE; GENERATION;

D O I：

10.7567/1882-0786/aafa0f

中图分类号：

O59 [应用物理学];

学科分类号：

摘要：

While photon-pair sources using silicon waveguides have shown great promise, strong two-photon absorption (TPA) may limit their brightness. Recently, high-index contrast doped glass (HICDG) has attracted attention because of its CMOS compatibility and low propagation loss. It is also expected that TPA in HICDG is small, though it has not yet been directly measured by conventionally used CW pumping. In this paper, we report that the estimated genuine coincidence events by photon-pairs increase quadratically as the pump power increased and do not show any saturation behavior up to 100 mW CW pump power. (C) 2019 The Japan Society of Applied Physics

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页数：3

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