Optical microfiber-based photonic crystal cavity

5th International Conference on Advances in Optoelectronics and Micro/Nano-optics

Sun, Yi-Zhi^1 ; Yu, Yang^2 ; Liu, Hui-Lan^1 ; Li, Zhi-Yuan^2 ; Ding, Wei^2

School of Instrumentation Science and Opto-electronics Engineering, Beihang University, Beijing

100191, China^1

Laboratory of Optical Physics, Institute of Physics, Chinese Academy of Sciences, Beijing

100190, China^2

关键词: Focused ion beam milling;    Light-matter interactions;    Micro-fiber;    Photonic crystal cavities;    Radiation loss;    Silica fibers;    Stop-bands;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/680/1/012029/pdf
DOI  :  10.1088/1742-6596/680/1/012029

来源: IOP

【 摘 要 】

Using a focused ion beam milling technique, we fabricate broad stop band (∼10% wide) photonic crystal (PhC) cavities in adiabatically-tapered silica fibers. Abrupt structural design of PhC mirrors efficiently reduces radiation loss, increasing the cavity finesse to ∼7.5. Further experiments and simulations verify that the remaining loss is mainly due to Ga ion implantation. Such a microfiber PhC cavity probably has potentials in many light-matter interaction applications.