Gigahertz sine-wave gate-control low-pass filtering ultrared single-photon detector
A single-photon detector and low-pass filtering technology, which is applied in the direction of instruments, can solve the problems of weak avalanche photoelectric signal and interference of photoelectric avalanche signal detection, achieve good suppression effect, reduce post-pulse effect, and improve detection efficiency.
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
Method used
Image
Examples
Embodiment Construction
[0014] The present invention will be further described below in conjunction with the accompanying drawings.
[0015] The principle of the invention is: the peak noise generated by the junction capacitance differential effect of InGaAs / InP APD will cause extremely serious interference to the weak avalanche photoelectric signal, how to effectively suppress the interference of the gate signal is the key technology of GHz single photon detection. For the peak noise generated by the GHz sine wave gating signal passing through the junction capacitance of InGaAs / InP APD, its energy is mainly distributed on the fundamental frequency and double frequency components of the gating signal. For the existing InGaAs / InP APD, its response time is on the order of ns, and the energy distribution of the avalanche signal is mainly concentrated below 1 GHz. For GHz sine wave gated infrared single photon detectors, the energy of the gated interference signal is mainly concentrated above GHz, while ...
PUM
Abstract
Description
Claims
Application Information
- R&D Engineer
- R&D Manager
- IP Professional
- Industry Leading Data Capabilities
- Powerful AI technology
- Patent DNA Extraction
Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.
© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com