摘要
A 473-nm-laser-tuned whispering gallery mode(WGM) silica microbubble resonator integrated with iron oxide particles is demonstrated in this paper. Owing to the photo-induced thermal effect, the WGM resonance wavelength could be tuned by adjusting laser power density of the illuminating light absorbed by the iron oxide particles. A wavelength tuning sensitivity of 0.03 nm/(mW·mm^(-2)) and a tuning range of 0.18 nm are experimentally achieved. Moreover, the influence of ambient temperature on the WGM spectral characteristics is experimentally studied, and a silica-microbubble-based reference scheme is demonstrated to compensate for the temperature-caused resonance wavelength variation. The proposed laser-tuned microresonator has great potential in optical modulation and high-precision optical filtering applications.
作者
LIANG Cong-zhou
ZHANG Hao
WANG Yu-jia
WU Ji-xuan
LIN Wei
LIU Bo
LIU Hai-feng
梁从周;张昊;王羽佳;吴继旋;林炜;刘波;刘海峰(Tianjin Key Laboratory of Optoelectronic Sensor and Sensing Network Technology,Institute of Modern Optics,Nankai University,Tianjin 300350,China;Tianjin Key Laboratory of Optoelectronic Detection Technology and Systems,College of Electronic and Information Engineering,Tianjin Polytechnic University,Tianjin 300387,China)
基金
This work has been supported by the National Natural Science Foundation of China(Nos.11774181,61875091,11904262,11904180,61727815 and 11274182)
the Natural Science Foundation of Tianjin(No.19JCYBJC16700)。
