Title
Wireless, Portable Fiber Bragg Grating Interrogation System Employing Optical Edge Filter.
Abstract
A small-size, high-precision fiber Bragg grating interrogator was developed for continuous plethysmograph monitoring. The interrogator employs optical edge filters, which were integrated with a broad-band light source and photodetector to demodulate the Bragg wavelength shift. An amplifier circuit was designed to effectively amplify the plethysmograph signal, obtained as a small vibration of optical power on the large offset. The standard deviation of the measured Bragg wavelength was about 0.1 pm. The developed edge filter module and amplifier circuit were encased with a single-board computer and communicated with a laptop computer via Wi-Fi. As a result, the plethysmograph was clearly obtained remotely, indicating the possibility of continuous vital sign measurement.
Year
DOI
Venue
2019
10.3390/s19143222
SENSORS
Keywords
Field
DocType
fiber bragg grating,vital sign monitoring,optical edge filter,pulse wave,plethysmograph
Optical power,Demodulation,Fiber Bragg grating,Wireless,Optics,Electronic engineering,Photodetector,Pulse wave,Engineering,Wavelength,Amplifier
Journal
Volume
Issue
Citations 
19
14.0
1
PageRank 
References 
Authors
0.38
0
6
Name
Order
Citations
PageRank
Ken Ogawa110.72
Shouhei Koyama243.46
Yuuki Haseda310.38
Keiichi Fujita410.38
hiroaki ishizawa553.89
Keisaku Fujimoto610.38