Document Type
Article (Restricted)
Publication Date
1-1-2013
Abstract
A compact inline microfiber Mach–Zehnder interferometer (MMZI) is proposed for high temperature sensing. The MMZI is fabricated using a flame-brushing technique in which both transition parts of a microfiber are tapered to reduce the waist diameter and form an interference region. Since the refractive index of the fiber core exhibits a different temperaturencoefficient from that of air, the interferometer is sensitive to temperature variation. The temperature sensitivity of the device with a length of 40 mm was measured to be 13.4 pm/°C with an excellent linearity for temperature measurement up to 800 °C.
Keywords
Flame-brushing technique, High-temperature sensor, Inline Mach–Zehnder interferometer (MZI), Microfiber
Divisions
fac_eng
Publication Title
IEEE Sensors Journal
Volume
13
Issue
2
Publisher
Institute of Electrical and Electronics Engineers (IEEE)
Additional Information
University of Malaya, 50603 Kuala Lumpur, MALAYSIA