Compact Fast Optode-Based Probe for Single-Photon Counting Applications
| Autor: | Yuankang Lu, Frédéric Lesage, Sascha Weyers, Sreenil Saha, Mohamad Sawan |
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| Přispěvatelé: | Publica |
| Rok vydání: | 2018 |
| Předmět: |
photonic
Photon Avalanche diode Materials science detector business.industry 020208 electrical & electronic engineering Detector Physics::Optics 02 engineering and technology Atomic and Molecular Physics and Optics Photon counting Electronic Optical and Magnetic Materials Vertical-cavity surface-emitting laser 020210 optoelectronics & photonics Picosecond 0202 electrical engineering electronic engineering information engineering Optoelectronics single-photon avalanche diode (SPAD) Electrical and Electronic Engineering Optode Photonics business |
| Zdroj: | IEEE Photonics Technology Letters. 30:1515-1518 |
| ISSN: | 1941-0174 1041-1135 |
| Popis: | We present a compact standalone optode probe integrated with a pulsed vertical cavity surface emitting laser (VCSEL) and a fast-gated single-photon counting module. The single-photon counting module is fabricated in the 0.35- $\mu \text{m}$ HV CMOS technology and coupled to a silicon-photon avalanche diode (SPAD). The integrated 10- $\mu \text{m}$ diameter SPAD has a photon detection efficiency of 5% at a wavelength of 850 nm and a very low dark count rate of 60 cps at room temperature. A compact and very high modulation rate top-emitting GaAs-based VCSEL chip is used to deliver pulsed picosecond light. High-intensity short-time reflections, occurring due to the close proximity of the light source and detector, are avoided by fast-gating of the detector, which enables the detection of photons in some specified time-windows. A full characterization of the module is done without any cooling, testing both its electric and optical properties. The compactness of the module paves the way for its utilization in a wide variety of single-photon counting applications. |
| Databáze: | OpenAIRE |
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