Simultaneous spectral recovery of long-period grating sensor array using optical time-division multiplexing

• Main Authors: Lin H.S., Mokhtar M.R., Rahman F.A., Rashid H.A.A., Roslina M., Arif N.A.M.
• Other Authors: 55549639500
• Format: Article
• Published: 2023
• Subjects: Fiber optic sensor; Long period grating; Optical sensor network; Fiber optic sensors; Optical sensors; Refractive index; Sensor networks; Time division multiplexing; Long Period Gratings; LPG sensors; Optical time division multiplexing; STAR network; Transmission spectrums; Sensor arrays

A novel sensor network based on optical time-division multiplexing (OTDM) is proposed and demonstrated for simultaneous sensing of long-period grating (LPG) sensor array with overlapping spectra. A star network is configured by pairing a circulator with each of the LPG sensors. Experiments are condu...