Title :
A novel tunable microwave optical notch filter
Author :
You, Ningsi ; Minasian, Robert A.
Author_Institution :
Sch. of Electron. & Inf. Eng., Sydney Univ., NSW, Australia
fDate :
10/1/2001 12:00:00 AM
Abstract :
A new topology for a tunable microwave photonic notch filter, which achieves a wide and continuous tuning range of FSR/2, is presented. The novel principle of tuning is based on changing optical variable attenuators only; consequently, a fixed wavelength laser can be used as the optical source. Experimental filter tuning results demonstrate a wide fractional tuning range of 50%, continuous tuning capability, and a notch filter shape that does not change as it is tuned, in very good agreement with predictions
Keywords :
microwave filters; microwave photonics; notch filters; optical filters; optical tuning; fixed wavelength laser optical source; optical variable attenuator; tunable microwave optical notch filter; tuning range; Frequency; Laser tuning; Masers; Microwave filters; Optical attenuators; Optical fiber filters; Optical filters; Optical signal processing; Optical tuning; Tunable circuits and devices;
Journal_Title :
Microwave Theory and Techniques, IEEE Transactions on
