Title :
High-order tunable filters based on a chain of coupled crystalline whispering gallery-mode resonators
Author :
Savchenkov, Anatoliy A. ; Ilchenko, Vladimir S. ; Matsko, Andrey B. ; Maleki, Lute
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
Abstract :
We demonstrate experimentally a tunable third-order optical filter fabricated from the three voltage-controlled lithium niobate whispering gallery-mode resonators. The filter operates at 1550 nm with 30-MHz bandwidth and can be electrooptically tuned by 12 GHz in the linear regime with approximately 80-MHz/V tuning rate. With this filter, we have demonstrated 6-dB fiber-to-fiber insertion loss and 30-ns tuning speed, limited by the resonator buildup time.
Keywords :
electro-optical devices; lithium compounds; optical fibre losses; optical filters; optical resonators; optical tuning; whispering gallery modes; 1550 nm; 30 MHz; 30 ns; 6 dB; LiNbO3; electrooptical tuning; fiber-to-fiber insertion loss; lithium niobate whispering gallery mode resonators; third-order tunable filters; Bandwidth; Crystallization; Linear approximation; Lithium niobate; Nonlinear filters; Optical fiber filters; Optical filters; Optical resonators; Resonator filters; Voltage; High-order optical filters; nonlinear optics; optical filters; optical resonators; tunable filters; whispering gallery-mode (WGM) resonators;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2004.836906
