Abstract
We present a low-cost acoustic sensor using tapered fiber structure attached to a nitrile polymer-based diaphragm. The tapered fiber is attached in the line of symmetry of a circular diaphragm of optimized thickness and diameter. The applied acoustic pressure deforms the diaphragm, which bends the tapered fiber attached with it. The bending induced change in transmission power is utilized to detect the applied acoustic pressure. The acoustic sensitivity and minimum detectable pressure at 2500 Hz are 36 mV/kPa and 21.11 Pa/√Hz, respectively, for the sensor setup with tapered fiber waist diameter of 18.37 μm. The sensor shows a reasonably flat response from 250 to 2500 Hz. The performance parameters of the sensor, such as sensitivity, minimum detectable pressure, and flat response range can be easily tailored by changing the dimensions of diaphragm and tapered fiber.
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a callSimilar Papers
More From: Journal of Lightwave Technology
Disclaimer: All third-party content on this website/platform is and will remain the property of their respective owners and is provided on "as is" basis without any warranties, express or implied. Use of third-party content does not indicate any affiliation, sponsorship with or endorsement by them. Any references to third-party content is to identify the corresponding services and shall be considered fair use under The CopyrightLaw.
