| Item type |
学術雑誌論文 / Journal Article(1) |
| 公開日 |
2020-02-01 |
| タイトル |
|
|
タイトル |
A waveguide-integrated superconducting nanowire single-photon detector with a spot-size converter on a Si photonics platform |
|
言語 |
en |
| 言語 |
|
|
言語 |
eng |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
SSPD |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
SNSPD |
| キーワード |
|
|
言語 |
en |
|
主題Scheme |
Other |
|
主題 |
Si waveguide |
| 資源タイプ |
|
|
資源 |
http://purl.org/coar/resource_type/c_6501 |
|
タイプ |
journal article |
| アクセス権 |
|
|
アクセス権 |
open access |
|
アクセス権URI |
http://purl.org/coar/access_right/c_abf2 |
| その他のタイトル |
|
|
その他のタイトル |
Waveguide‐integrated SNSPD with spot‐size converter on Si photonics platform |
|
言語 |
en |
| 著者 |
Shibata, Hiroyuki
Hiraki, Tatsurou
Tsuchizawa, Tai
Yamada, Koji
Tokura, Yasuhiro
Matsuo, Sinji
|
| 抄録 |
|
|
内容記述タイプ |
Abstract |
|
内容記述 |
We report a high system-detection-efficiency superconducting nanowire single-photon detector (SNSPD) with a spot-size converter (SSC) on a Si photonics platform. The NbNSNSPD is evanescently coupled to the Si waveguide and connected to the optical fibre through the low-loss SSC comprising a Si inverse taper and large silica-based core. The fabricated SNSPD chip was assembled on a low-loss fibre-coupled module. The fibrecoupling loss of the module is remarkably small (1.9 dB/facet). The fabricated SNSPD module shows system detection efficiency of 32% with the dark count rate of 95 Hz and
timing jitter of 75 ps. The measured system detection efficiency is over ten times larger than that of previous waveguide-integrated SNSPDs on the Si platform. The noise equivalent power (NEP) reaches 3.6 × 10-18 WHz-1/2, and the figure of merit (FOM) reaches 1.9 × 108. |
|
言語 |
en |
| 書誌情報 |
en : Superconductor Science and Technology
巻 32,
p. 034001,
発行日 2019-01
|
| ISSN |
|
|
収録物識別子タイプ |
PISSN |
|
収録物識別子 |
0953-2048 |
| DOI |
|
|
|
識別子タイプ |
DOI |
|
|
関連識別子 |
https://doi.org/10.1088/1361-6668/aaf84f |
| 出版者 |
|
|
出版者 |
IOP Publishing |
| 著者版フラグ |
|
|
言語 |
en |
|
値 |
author |
| 出版タイプ |
|
|
出版タイプ |
AM |
|
出版タイプResource |
http://purl.org/coar/version/c_ab4af688f83e57aa |
Waveguide‐integrated SNSPD with spot‐size converter on Si photonics platform (818.1 kB)
