Affordable Access

deepdyve-link
Publisher Website

Wearable SiPM-based NIRS Interface Integrated with Pulsed Laser Source.

Authors
  • Saha, Sreenil
  • Lu, Yuankang
  • Lesage, Frederic
  • Sawan, Mohamad
Type
Published Article
Journal
IEEE Transactions on Biomedical Circuits and Systems
Publisher
Institute of Electrical and Electronics Engineers
Publication Date
Nov 04, 2019
Identifiers
DOI: 10.1109/TBCAS.2019.2951539
PMID: 31689208
Source
Medline
Language
English
License
Unknown

Abstract

We present the design of a miniaturized probe integrating silicon photomultiplier and light-pulsing electronics in a single 2x2mm2 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.

Report this publication

Statistics

Seen <100 times