Packaged inline cascaded optical micro-resonators for multi- parameter sensing

Kavungal, Vishnu, Farrell, Gerald, Wu, Qiang, Kumar Mallik, Arun, Shen, Changyu and Semenova, Yuliya (2019) Packaged inline cascaded optical micro-resonators for multi- parameter sensing. Optical Fiber Technology, 50. pp. 50-54. ISSN 1068-5200

Preview

Text Revised Paper-6_Multiple resonators.pdf - Accepted Version Available under License Creative Commons Attribution Non-commercial No Derivatives 4.0. Download (530kB) | Preview

Abstract

A novel design principle and fabrication method for whispering gallery mode optical multiple-resonator arrays have been proposed and demonstrated. The proposed design involves an inline cascade of optical micro-resonators (ICOMRs) coupled to multiple tapered sections along a single optical fiber. The multiple micro-resonators can be used for sensing of several parameters or a single parameter at multiple locations simultaneously. A simple and robust packaging technique has been developed ensuring stable and repeatable operation of the device. In order to demonstrate the capability of simultaneous multi- parameter sensing of the proposed ICOMRs structure, strain and temperature measurements were carried out using an inline cascade of two cylindrical micro-resonators: a tapered polymer optical fiber based micro-cylinder and a polydimethylsiloxane coated silica cylindrical micro-resonator. An Axial tensile strain sensitivity of 1.4 ± 0.04 pm/με and temperature sensitivity of 330 ± 18 pm/°C have been demonstrated experimentally. The proposed ICOMRs design has many potential applications in distributed sensing, lab-on-a-fiber technology and optical communications.

Actions (login required)

View Item

Downloads