title: Microwave photonic notch filter based on a dual-Sagnac-loop structure.
abstract: A new single-wavelength, coherence-free microwave photonic notch filter is presented. The concept is based on a dual-Sagnac-loop structure that functions with a new principle in which the two loops operate with different free spectral ranges, and which generate noncommensurate taps. It has the ability to generate a narrow notch response and can operate to high frequencies. Experimental results demonstrate a notch filter with a narrow notch width, a flat passband, and high stop-band attenuation of over 40dB.
authors.affiliation: School of Electrical and Information Engineering, Institute of Photonics and Optical Science, University of Sydney, New South Wales, 2006, Australia. xudong@ee.usyd.edu.au
authors.forename: Xudong
authors.initials: X
authors.lastname: Wang
authors.forename: Erwin H W
authors.initials: EH
authors.lastname: Chan
authors.forename: Robert A
authors.initials: RA
authors.lastname: Minasian