Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system

doi:10.1364/OE.17.023557

Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system

Shigehito Miki, Masanori Takeda, Mikio Fujiwara, Masahide Sasaki, and Zhen Wang »View Author Affiliations

Optics Express, Vol. 17, Issue 26, pp. 23557-23564 (2009)
http://dx.doi.org/10.1364/OE.17.023557

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Abstract

We developed superconducting nanowire single-photon detectors with an optical cavity (OC-SNSPDs) for multichannel systems. For efficient coupling, the devices were installed in compact fiber-coupled packages after their substrate thickness was reduced from 400 to 45 μm. The measured detection efficiency (DE) measurement at different substrate thicknesses and the estimation of optical coupling efficiency indicated that ~98% of the input light beam could be radiated on a 15 × 15 μm² nanowire area from behind the substrate. The DEs of a NbN OC-SNSPD system were observed to be 9.5% and 25% at 1550 nm and 1310 nm, respectively (dark-count rate: 100 c/s).

OCIS Codes
(040.5160) Detectors : Photodetectors
(270.5570) Quantum optics : Quantum detectors

ToC Category:
Detectors

History
Original Manuscript: June 30, 2009
Revised Manuscript: September 11, 2009
Manuscript Accepted: September 18, 2009
Published: December 9, 2009

Citation
Shigehito Miki, Masanori Takeda, Mikio Fujiwara, Masahide Sasaki, and Zhen Wang, "Compactly packaged superconducting nanowire single-photon detector with an optical cavity for multichannel system," Opt. Express 17, 23557-23564 (2009)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-17-26-23557

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References

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