Title :
Analysis and experimental measurement of the Q factor of hexagonal microcavities fabricated with crystal growth
Author :
Kudo, Hiroyuki ; Suzuki, Ryo ; Kato, Toshihiko ; Yokoo, A. ; Tanabe, Takasumi
Author_Institution :
Dept. of Electron. & Electron. Eng., Keio Univ., Yokohama, Japan
fDate :
June 30 2013-July 4 2013
Abstract :
We investigated a whispering gallery mode cavity with a hexagonal cross-section using the two-dimensional finite-difference time-domain method. We studied the dependence of Q on the curvature radius of the polygonal cavities and found two different modes; “perturbed-WGM” and “quasi-WGM”, of which the former exhibits the higher Q. We also fabricated a cavity by employing laser heated pedestal growth and demonstrated a high Q.
Keywords :
Q-factor; finite difference time-domain analysis; micro-optics; microcavities; optical fabrication; whispering gallery modes; Q factor; crystal growth; curvature radius; experimental measurement; hexagonal cross-section; hexagonal microcavity; laser heated pedestal growth; perturbed-WGM; polygonal cavity; quasiWGM; two-dimensional finite-difference time-domain method; whispering gallery mode cavity; Cavity resonators; Crystals; Fiber lasers; Laser modes; Microcavities; Optical variables measurement; Shape;
Conference_Titel :
Lasers and Electro-Optics Pacific Rim (CLEO-PR), 2013 Conference on
Conference_Location :
Kyoto
DOI :
10.1109/CLEOPR.2013.6600128
