We propose and experimentally demonstrate the first tunable whispering gallery mode (WGM) photonic device based on side-hole microstructured optical fiber (SH-MOF) with internal electrodes, in which the WGM quality factors do not decrease significantly during the tuning process. The resonant modes are redshifted simply by increasing the temperature. A description of the thermal tuning properties of the WGMs in SH-MOF with internal electrodes is performed by using a two-stage computational methodology, where the effects of metal filling process are considered. SH-MOF devices with internal electrodes are tested and the experimental results show excellent agreement with the theory. A linear relationship between the shift rate of the WGM modes and temperature is observed. The tunable SH-MOF microresonator with internal electrodes is anticipated to find potential applications in optical filtering, optical switching, and highly integrated tunable photonic devices.

我们提出并实验证明了第一个基于带有内部电极的侧孔微结构光纤（SH-MOF）的可调谐耳语画廊模式（WGM）光子器件，其中在调谐过程中WGM品质因数不会显着降低。只需增加温度即可使谐振模式发生红移。通过使用两阶段计算方法对带有内部电极的SH-MOF中WGM的热调谐特性进行了描述，其中考虑了金属填充过程的影响。对带有内部电极的SH-MOF装置进行了测试，实验结果与理论相吻合。观察到WGM模式的移动速率与温度之间存在线性关系。