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Proceedings Paper

A monolithic readout circuit for high-frequency sine wave gating single-photon detection
Author(s): Wen-Hao Jiang; Jian-Hong Liu; Ge Jin; Jun Zhang; Jian-Wei Pan
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Paper Abstract

Single-photon avalanche diodes (SPADs) are widely used for practical applications requiring single-photon detection. The readout circuit, or quenching electronics, plays an important role for the operations of SPADs. Sine wave gating (SWG) is one of the key techniques for synchronous single-photon detection that can easily operate SPADs with a gating frequency as high as GHz level. Here we present a monolithic readout circuit for 1.25 GHz SWG SPADs. The monolithic chip, including a low-noise amplifier and two low-pass filters inside, is designed for weak avalanche extraction in the SWG scheme and fabricated using the technology of low temperature co-fired ceramic with a size of 15 mm × 15 mm. We then apply the monolithic chip into an InGaAs/InP single-photon detector (SPD). After the characterization both on the monolithic chip and the InGaAs/InP SPD, the functionality of the monolithic readout circuit is effectively verified. Implementing the monolithic integration of readout circuit is a key step towards developing miniaturized InGaAs/InP SPDs.

Paper Details

Date Published: 9 November 2018
PDF: 7 pages
Proc. SPIE 10825, Quantum and Nonlinear Optics V, 108251F (9 November 2018); doi: 10.1117/12.2502329
Show Author Affiliations
Wen-Hao Jiang, Univ. of Science and Technology of China (China)
Jian-Hong Liu, QuantumCTek Co., Ltd. (China)
Ge Jin, Univ. of Science and Technology of China (China)
Jun Zhang, Univ. of Science and Technology of China (China)
Jian-Wei Pan, Univ. of Science and Technology of China (China)


Published in SPIE Proceedings Vol. 10825:
Quantum and Nonlinear Optics V
Qihuang Gong; Guang-Can Guo; Byoung S. Ham, Editor(s)

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