[1] Vahala K J. Optical microcavities[J]. Nature, 424, 839-846(2003).
[2] Zou C L, Dong C H, Cui J M et al. Whispering gallery mode optical microresonators: fundamentals and applications[J]. Scientia Sinica (Physica, Mechanica & Astronomica), 42, 1155-1175(2012).
[3] Zhuang S J, Huang Y T, Peng L X et al. Realization of an O-waveband laser based on cascaded stimulated Raman scattering of microspheres[J]. Applied Optics, 56, 7572-7576(2017).
[4] Liu W Y, Li W, Wang R et al. Magnetic sensor based on WGM hollow microbubble resonator filled with magnetic fluid[J]. Optics Communications, 497, 127148(2021).
[5] Chen Y F, Shen X, Zhou Q et al. All-optical tunable fiber filter based on phosphate glass microspheres[J]. Chinese Journal of Lasers, 48, 0106003(2021).
[6] Li H T, Liu W Y, Pan Z W et al. Suppression of backscattering noise in resonant micro optic gyroscope with two laser frequencies locking-in[J]. Laser & Infrared, 49, 886-890(2019).
[7] Wang P F, Li A Z. Packaging and integration of whispering gallery modes optical microcavity devices[J]. Acta Photonica Sinica, 48, 1148008(2019).
[8] Shang C L, Tang J, Pi H L et al. Temperature coefficient of high-Q microsphere cavity[J]. Chinese Journal of Lasers, 42, 0302005(2015).
[9] Yan Y Z, Zou C L, Yan S B et al. Packaged silica microsphere-taper coupling system for robust thermal sensing application[J]. Optics Express, 19, 5753-5759(2011).
[10] Wang M Y, Jin X Y, Li F et al. Analysis for coupling characteristics of optical microsphere cavity in waveguide coupled whispering gallery mode[J]. Journal of Infrared and Millimeter Waves, 37(2018).
[11] Wang M Y, Meng L J, Yang Y et al. Selection of whispering-gallery modes and Fano resonance of prolate microbottle resonators[J]. Acta Physica Sinica, 69, 234203(2020).
[12] Yan Y Z, Zou C L, Yan S B et al. Robust spot-packaged microsphere-taper coupling structure for in-line optical sensors[J]. IEEE Photonics Technology Letters, 23, 1736-1738(2011).
[13] Wang P F, Ding M, Lee T et al. Packaged chalcogenide microsphere resonator with high Q-factor[J]. Applied Physics Letters, 102, 131110(2013).
[14] Tang T, Wu X, Liu L Y et al. Packaged optofluidic microbubble resonators for optical sensing[J]. Applied Optics, 55, 395-399(2016).
[15] Yang D Q, Duan B, Wang A Q et al. Packaged microbubble resonator for versatile optical sensing[J]. Journal of Lightwave Technology, 38, 4555-4559(2020).
[16] Wang Z J, Zhang X B, Zhao S C et al. High-sensitivity flow rate sensor enabled by higher order modes of packaged microbottle resonator[J]. IEEE Photonics Technology Letters, 33, 599-602(2021).
[17] Monifi F, Friedlein J, Ozdemir Ş K et al. A robust and tunable add-drop filter using whispering gallery mode microtoroid resonator[J]. Journal of Lightwave Technology, 30, 3306-3315(2012).
[18] Vanier F, Peter Y A, Rochette M. Cascaded Raman lasing in packaged high quality As2S3 microspheres[J]. Optics Express, 22, 28731-28739(2014).
[19] Herter J, Wunderlich V, Janeczka C et al. Experimental demonstration of temperature sensing with packaged glass bottle microresonators[J]. Sensors, 18, 4321(2018).
[20] Kavungal V, Farrell G, Wu Q et al. A packaged whispering gallery mode strain sensor based on a polymer-wire cylindrical micro resonator[J]. Journal of Lightwave Technology, 36, 1757-1765(2018).
[21] Ke C Z, Xu C H, Huang Y T et al. High-order whispering gallery modes in TiO2-SiO2 hybrid microsphere cavity prepared with sol-gel method[J]. Chinese Journal of Lasers, 46, 0213002(2019).
[22] Zhang Y N, Zhu N S, Zhou T M et al. Research on fabrication and sensing properties of fiber-coupled whispering gallery mode microsphere resonator[J]. IEEE Sensors Journal, 20, 833-841(2020).
[23] Wen Q, Qin J H, Zhou H et al. Controllable excitation of whispering gallery mode micro-rod resonator[J]. Acta Optica Sinica, 40, 1919001(2020).
[24] Vassiliev V V, Velichansky V L, Ilchenko V S et al. Narrow-line-width diode laser with a high-Q microsphere resonator[J]. Optics Communications, 158, 305-312(1998).
[25] Wang M Y, Zeng S F, Meng L J et al. Experimental observation of dynamic transmission lineshapes in a robust SNAP microbottle-taper coupling system[J]. IEEE Photonics Journal, 11, 7105412(2019).