Near infrared operation of femtosecond laser micro-machined in-fiber Mach Zehnder interferometers (uIMZI) for refractive index sensing
Monika Janik , Tinko Eftimov , Marcin Koba , Mateusz Jakub Śmietana , Wojtek J. Bock
AbstractThis paper discusses refractive index (n) measurement capabilities of interferometers based on micro-cavities of various diameters (d = 50 and 60 μm) fabricated in optical fibers by a femtosecond laser. In comparison to previously presented structures, the reported sensor operates in the near-infrared spectral range. Bottom of the cavity intersected the fiber’s core (5.2 μm in diameter), which induced the Mach-Zehnder interferometer effect. After filling the cavity, a set of minima can be observed in the transmission spectrum, and they shift in wavelength with a change in n. The fabricated sensors exhibit high and linear sensitivity and can measure sub-nanoliter volumes of liquids, what make this sensor perfect for various diagnostic medical or biochemical applications.
|Publication size in sheets||0.5|
|Book||Freymann Georg von, Schoenfeld Winston V., Rumpf Raymond C. (eds.): Proceedings on Advanced Fabrication Technologies for Micro/Nano Optics and Photonics XI, vol. 10544, 2018, SPIE, ISBN 9781510615731, 120 p.|
|project||x. Project leader: Śmietana Mateusz Jakub,
, Phone: (22) 234 63 64, start date 25-02-2015, planned end date 24-02-2018, IMIO/2015/NCN/1, Implemented
|Score|| = 15.0, 11-03-2019, BookChapterMatConf|
= 15.0, 11-03-2019, BookChapterMatConf
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