Abstract
Fabrication of various microfiber structures such as loop, knot, mach-zenhder interferometer and coil resonators have been successfully demonstrated using a flame brushing technique. A compact inline microfiber Mach-Zehnder interferometer (MMZI) is also demonstrated for high temperature sensing. The temperature sensitivity of the device was measured to be 13.4 pm/°C with an excellent linearity for temperature measurement up to 800 °C. Another MMZI structure is also proposed for application in tunable Erbium-doped fiber laser (EDFL). The operating wavelength of the laser can be tuned from 1530.2 nm to 1532.7 nm by changing the path length difference inside the MMZI from 1.6 mm to 2.7 mm at room temperature.
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