A Whispering-Gallery-Mode Microsphere Resonator on a No-Core Fiber Tip Liu, Jing ; Chen, W. P. ; Wang, D. N. ; Xu, Ben ; Wang, Z. W. Abstract Publication: IEEE Photonics Technology Letters Pub Date: March 2018 DOI: 10.1109/LPT.2018.2803060 Bibcode: 2018IPTL...30..537L