Single-photon detection timing jitter in a visible light photon counter

Details Single-photon detection timing jitter in a visible light photon counter Single-photon detection timing jitter in a visible light photon counter

2009-11-30

arxiv.org/abs/0911.5691v2

Physics

Instrumentation and Detectors

Scientific paper

Visible light photon counters (VLPCs) offer many attractive features as photon detectors, such as high quantum efficiency and photon number resolution. We report measurements of the single-photon timing jitter in a VLPC, a critical performance factor in a time-correlated single-photon counting measurement, in a fiber-coupled closed-cycle cryocooler. The measured timing jitter is 240 ps full-width-at-half-maximum at a wavelength of 550 nm, with a dark count rate of 25 000 counts per second. The timing jitter increases modestly at longer wavelengths to 300 ps at 1000 nm, and increases substantially at lower bias voltages as the quantum efficiency is reduced.

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