Analysis of special fibres for light generation

Abstract

Suspended core fiber (SCF) is one of the key classes of microstructured optical fibers

(MOFs), which incorporate three air holes within their cross-section. The holes within

SCFs can offer significant overlap between guided mode of the fiber and the air holes

and can be used to control the interactions between guided light and matter located

within the holes.

We report a silica optical fiber sensor using quantum dot (Qdot) filled Suspended Core

Fiber (SCF). We explored the dipping sensing of SCF using shorter excitation

wavelength and numerically and experimentally proved that shorter excitation

wavelength gives a better fluorescence excitation and capture. In addition, we found a

clearer distinction between glass fluorescence and Quantum Dot fluorescence which can

reduce the crosstalk of them and increase the sensitivity of SCFs. Selective filling

method to investigate the guidance performance concludes that filling all the holes in the

SCF has the best outcome.