Title :
Micro-Fabry–Pérot Interferometer With High Contrast Based on an In-Fiber Ellipsoidal Cavity
Author :
Wang, Tingting ; Wang, Ming ; Ni, Haibin
Author_Institution :
Jiangsu Key Lab. of Opto-Electron. Technol., Nanjing Normal Univ., Nanjing, China
fDate :
6/1/2012 12:00:00 AM
Abstract :
We present a high-contrast extrinsic Fabry-Pérot interferometer (HCEFPI) with an in-fiber ellipsoidal cavity. The ellipsoidal air-microcavity is formed by splicing together a single-mode fiber and a photonic crystal fiber with the simple arc-discharge technique. The propagation loss in the cavity can be very low due to the confocal cavity and very short cavity. Experiments have shown that the HCEFPI has a fringe contrast of ~ 30 dB. Temperature insensitivity, high contrast, and high robustness make it appropriate for high-resolution and long-range sensing without temperature compensation.
Keywords :
Fabry-Perot interferometers; holey fibres; optical fibre fabrication; photonic crystals; splicing; confocal cavity; ellipsoidal air-microcavity; fringe contrast; high-contrast extrinsic Fabry-Perot interferometer; in-fiber ellipsoidal cavity; microFabry-Perot interferometer; photonic crystal fiber; propagation loss; simple arc-discharge technique; single-mode fiber; temperature compensation; temperature insensitivity; Cavity resonators; Optical fiber sensors; Reflection; Strain; Temperature measurement; Temperature sensors; Fabry–Pérot interferometer; high-contrast; photonic crystal fiber; temperature insensitivity;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2185841
