Title :
Low-Timing-Jitter Single-Photon Detection Using 1-GHz Sinusoidally Gated InGaAs/InP Avalanche Photodiode
Author :
Liang, Yan ; Wu, E. ; Chen, Xiuliang ; Ren, Min ; Jian, Yi ; Wu, Guang ; Zeng, Heping
Author_Institution :
State Key Lab. of Precision Spectrosc., East China Normal Univ., Shanghai, China
fDate :
7/1/2011 12:00:00 AM
Abstract :
We demonstrate an efficient way to improve the timing jitter of sine-wave gated InGaAs/InP avalanche photo diode (APD) by combining sinusoidally balanced differencing and low-pass filtering techniques to minimize detrimental waveform distortion of the avalanche signal, and realize a 1-GHz gated InGaAs/InP single-photon detector with the timing jitter as low as 60 ps. The detection efficiency could reach 10.4% at 1550 nm with the maximum count rate ~100 MHz, after pulse probability ~3.0%, and dark count rate ~6.1 × 10-6 per gate. Such low timing jitter single-photon detectors offer facility for quantum key distribution at gigahertz clock rate.
Keywords :
III-V semiconductors; avalanche photodiodes; gallium arsenide; indium compounds; low-pass filters; optical distortion; photodetectors; timing jitter; InGaAs-InP; avalanche signal; dark count rate; frequency 1 GHz; gigahertz clock rate; low-pass filtering techniques; low-timing-jitter single-photon detection; quantum key distribution; sine-wave gated avalanche photodiode; single-photon detector; sinusoidally balanced differencing techniques; sinusoidally gated avalanche photodiode; waveform distortion; wavelength 1550 nm; Detectors; Indium gallium arsenide; Indium phosphide; Logic gates; Low pass filters; Photonics; Timing jitter; Avalanche photodiode (APD); photon detector;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2011.2141982
