Title :
Tunable filter based on whispering gallery modes
Author :
Savchenkov, A.A. ; Ilchenko, V.S. ; Matsko, A.B. ; Maleki, L.
Author_Institution :
Jet Propulsion Lab., California Inst. of Technol., Pasadena, CA, USA
fDate :
2/20/2003 12:00:00 AM
Abstract :
A narrowband, widely tunable filter based on a whispering gallery mode LiNbO3 cavity with 10 GHz free spectral range is proposed and demonstrated. The filter operates at 1.55 μm with 30 MHz bandwidth and can be electro-optically tuned at 10 GHz in the linear regime with approximately 40 MHz/V tuning rate. With this filter, we have demonstrated 12 dB fibre-to-fibre insertion loss and 30 μs tuning speed.
Keywords :
cavity resonator filters; electro-optical filters; lithium compounds; microwave photonics; optical communication equipment; optical fibre filters; optical tuning; 1.55 micron; 10 GHz; 10 GHz free spectral range; 12 dB; 30 MHz; LiNbO3; electro-optical tuning; fibre-to-fibre insertion loss; high-density telecommunication networks; linear regime; microwave photonics communication systems; miniature resonant electro-optically tunable filter; narrowband widely tunable filter; tuning rate; tuning speed; whispering gallery mode LiNbO3 cavity;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:20030229
