Wearable SiPM-Based NIRS Interface Integrated With Pulsed Laser Source
| Autor: | Mohamad Sawan, Frédéric Lesage, Yuankang Lu, Sreenil Saha |
|---|---|
| Rok vydání: | 2019 |
| Předmět: |
Silicon
Materials science Biomedical Engineering 02 engineering and technology Integrated circuit 7. Clean energy 01 natural sciences law.invention Vertical-cavity surface-emitting laser 010309 optics Wearable Electronic Devices 020210 optoelectronics & photonics Silicon photomultiplier law 0103 physical sciences 0202 electrical engineering electronic engineering information engineering Humans Electronics Electrical and Electronic Engineering Monitoring Physiologic Photons Miniaturization Spectroscopy Near-Infrared business.industry Lasers Equipment Design Laser Photon counting Semiconductors Optoelectronics Light emission Photonics business |
| Zdroj: | IEEE transactions on biomedical circuits and systems. 13(6) |
| ISSN: | 1940-9990 |
| Popis: | We present the design of a miniaturized probe integrating silicon photomultiplier and light-pulsing electronics in a single 2 × 2 mm2 complementary metal-oxide-semiconductor (CMOS) chip which includes functional blocks such as a fast pulse-laser driver and synchronized single-photon detection circuit. The photon pulses can be either counted on-chip or processed by an external high-speed electronic module such as time-corelated single photon counting (TCSPC) unit. The integrated circuit was assembled on a printed circuit board (PCB) and also on a 2.5D silicon interposer platform of size 1 cm and interfaced with a silicon photomultiplier (SiPM), vertical cavity surface emitting laser (VCSEL) and other ancillary components such as capacitors and resistors. Our approach of integrating an optical interface to optimize light collection on the small active area and light emission from the vertical-cavity surface-emitting laser (VSCEL) will facilitate clinical adoption in many applications and change the landscape of Near Infrared Spectroscopy (NIRS) hardware commercially due to significant optode-size reduction and the elimination of optical fibers. |
| Databáze: | OpenAIRE |
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