Abstract: Nanophotonic ring resonators have emerged as promising candidates for sensing applications due to their high sensitivity and compact footprint. In this study, we investigated a 3-D ...
Abstract: Long-period fiber grating (LPFG) is a promising curvature sensor due to its high bending sensitivity. In this article, a fiber ring laser (FRL)-based curvature sensor with an LPFG was ...
The Mailbox Guard is a device that detects when a new letter or package has been delivered to your mailbox using a PIR sensor and door reed switch. It can send a signal to your LoRa gateway, then the ...