Guo-Liang Shentu, Jason S. Pelc, Xiao-Dong Wang, Qi-Chao Sun, Ming-Yang Zheng, M. M. Fejer, Qiang Zhang, Jian-Wei Pan
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.
View original:
http://arxiv.org/abs/1304.7871
No comments:
Post a Comment