From D-shaped to D-shape optical fiber – A universal solution for sensing and biosensing applications: Drawn D-shape fiber and its sensing applications
AUTHORS:
Stepniewski G., Filipkowski A., Pysz D., Warszewski J., Buczynski R., Smietana M., Kasztelanic R.
ABSTRACT:
We verified experimentally a new method of development of well know D-shape fibers. Instead of mechanical or chemical postprocessing of standard fibers, we have developed a D-shaped preform and further processed it on a fiber drawing tower Inversion of the fabrication process allows to obtain hundreds of meters of uniform sensing fiber with a thermodynamically flattened sensing surface. We have developed fibers with a core of 7 by 8 µm, a 2 µm distance between the core and sensing surface, and its roughness of RMS = 40 nm. As a proof-of-concept, we have developed a lossy-mode resonant sensor with a 320 nm ITO layer and demonstrated its sensitivity of 550 nm/RIE.
Measurement, 2023, vol. 222, art. 113642, doi: 10.1016/j.measurement.2023.113642
Originally published on - Oct. 5, 2023, 11:57 a.m.
Last update on - Oct. 16, 2023, 10:51 a.m.
Publisher - Sekretariat IGF