Chinese Optics Letters, 2013, 11 (8): 082302, Published Online: Aug. 6, 2013
Tunable high-Q tapered silica microcylinder filter Download: 616次
230.7408 Wavelength filtering devices 230.3990 Micro-optical devices 230.4685 Optical microelectromechanical devices 230.5750 Resonators
Abstract
We propose and demonstrate a tunable optical filter based on a tapered silica microcylinder, whose diameter is gradually varied along its longitudinal axis. The tapered microcylinder comprises a slowly varying transition zone fabricated through the fiber drawing technique. Given the tapered diameter of the microcylinder, the resonant wavelengths can be tuned by displacing the tapered microcylinder. This tunable filter exhibits a high Q-factor (~106) and a large tuning range (>1 free spectral range (FSR)).
Chenglong Yin, Jinyi Gu, Mi Li, Yuejiang Song. Tunable high-Q tapered silica microcylinder filter[J]. Chinese Optics Letters, 2013, 11(8): 082302.