Title :
Effect of Host Polymer on Microfiber Resonator
Author :
Vienne, Guillaume ; Li, Yuhang ; Tong, Limin
Author_Institution :
Zhejiang Univ., Hangzhou
Abstract :
We observe that changing the surrounding material from air to a low refractive index polymer can considerably alter the transmission spectrum of a microfiber knot around a given wavelength. We report on a silica microfiber knot resonator about 180 m in diameter. Using a supercontinuum source, we study its transmission when air and when a low index polymer are used as cladding. The resonator shows similar extinction ratio and Q-factor for both cladding materials. However, embedding the resonator in the polymer down-shifts the optimal operating wavelength by about 20%.
Keywords :
Q-factor; micro-optics; microcavities; optical fibre cladding; optical polymers; optical resonators; refractive index; Q -factor; SiO2; cladding materials; extinction ratio; host polymer; low refractive index polymer; microfiber knot; microfiber resonator; microfiber transmission; polymer down-shifts; silica microfiber knot resonator; size 180 mum; supercontinuum source; transmission spectrum; Extinction ratio; Fiber nonlinear optics; Nonlinear optics; Optical microscopy; Optical polymers; Optical refraction; Optical resonators; Optical variables control; Refractive index; Resonance; Microfibers; microresonators; optical fibers; optical resonators;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.903340
