Title :
A Novel Photonic Microwave Filter With Infinite Impulse Response
Author :
Cheng, Linghao ; Aditya, Sheel
Author_Institution :
Nanyang Technol. Univ., Singapore
Abstract :
A novel design of a photonic microwave filter with infinite impulse response is presented and demonstrated experimentally, ft overcomes the problems due to optical coherence. The design exhibits substantial flexibility, permitting easy and continuous tunability of the free spectral range. In particular, when a Mach-Zehnder modulator is used in the filter, the passband of the filter response can be changed to stopband and vice versa. The design also provides scope for cascading more stages. Theoretical analysis and measured results are presented, showing a very good match between them.
Keywords :
microwave filters; microwave photonics; optical filters; optical modulation; transient response; Mach-Zehnder modulator; free spectral range tunability; infinite impulse response; optical coherence; passband filter; photonic microwave filter; stopband filter; Band pass filters; Electrooptic modulators; Finite impulse response filter; IIR filters; Microwave filters; Optical feedback; Optical filters; Optical modulation; Optical noise; Signal processing; Infinite impulse response (IIR); Mach–Zehnder modulator (MZM); photonic microwave filter;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2007.903546
