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arXiv · 1304.7871

Ultralow noise up-conversion detector and spectrometer at telecom band

Guo-Liang Shentu·Jason S. Pelc·Xiao-Dong Wang·Qi-Chao Sun·Ming-Yang Zheng·M. M. Fejer·Qiang Zhang·Jian-Wei Pan
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Abstract

We demonstrate upconversion single-photon detection for the 1550-nm band using a PPLN waveguide, long-wavelength pump, and narrowband filtering using a volume Bragg grating. We achieve total-system detection efficiency of around 30% with noise at the dark-count level of a silicon APD. Based on the new detector, a single-pixel up-conversion infrared spectrometer with a noise equivalent power of -142 dBm was demonstrated, which was better than liquid nitrogen cooled InGaAs arrary.

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Guo-Liang Shentu, Jason S. Pelc, Xiao-Dong Wang, Qi-Chao Sun, Ming-Yang Zheng, M. M. Fejer, Qiang Zhang, Jian-Wei Pan. 2013-04-30. Ultralow noise up-conversion detector and spectrometer at telecom band. https://doi.org/10.1364/oe.21.013986

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