At the core of quantum photonic information processing and sensing, two major building
pillars are single-photon emitters and single-photon detectors. In this review, we …

Lidar has already achieved long-distance and high-accuracy detection due to the improved
sensitivity and timing accuracy of single-photon detectors (SPDs). However, single-photon …

Infrared imaging is a crucial technique in a multitude of applications, including night vision,
autonomous vehicle navigation, optical tomography, and food quality control. Conventional …

Mid-infrared (MIR) imaging has emerged as a valuable tool to investigate biological
samples, such as tissue histological sections and cell cultures, by providing non-destructive …

We present a fully integrated InGaAs/InP negative feedback avalanche diode (NFAD) based
free-running single-photon detector (SPD) designed for accurate lidar applications. A free …

We demonstrate a high-speed photon-counting laser ranging system with laser pulses of
multiple repetition rates to extend the unambiguous range. In the experiment, the laser …

The detection of oil in water is of great importance for maintaining subsurface infrastructures
such as oil pipelines. As a potential technology for oceanic application, an oceanic lidar has …

The monitor of sea fogs become more important with the rapid development of marine
activities. Remote sensing through laser is an effective tool for monitoring sea fogs, but still …

Atmospheric depolarization ratio and wind velocity are measured simultaneously by a single
versatile coherent Doppler lidar (CDL). Backscattering components at parallel and …

An all-fiber, micro-pulse and eye-safe high spectral resolution wind lidar (HSRWL) at 1.5 μm
is proposed and demonstrated by using a pair of upconversion single-photon detectors and …