DocumentCode :
2044660
Title :
Analysis of Microwave Photonic Notch Filter with Tunable Parameters
Author :
Khosroabadi, Saeed ; Salehi, Mohammad Reza
Author_Institution :
Dept. of Electr. & Electron. Eng., Shiraz Univ. of Technol., Shiraz, Iran
fYear :
2007
fDate :
24-27 Nov. 2007
Firstpage :
860
Lastpage :
863
Abstract :
In this paper a tunable photonic notch filter based on all-optical mixing using a single narrow-linewidth optical source and a variable time delay line is presented. In the proposed filter, the optical carrier emitted from a laser source is externally intensity modulated by a subcarrier signal and then applied to a second intensity modulator. By using a variable polarization beamsplitter, a Hi-Bi coupler, a variable time delay line; a two-tap photonic microwave notch filter with a tunable free spectral range (FSR) is numerically demonstrated. An expression for the filter transfer function is derived. Numerical results show a notch rejection greater than 30 dB.
Keywords :
light coherence; light interference; microwave filters; microwave photonics; multiwave mixing; notch filters; optical fibre couplers; optical fibre polarisation; optical filters; all-optical mixing; laser source; microwave photonic notch filter; second intensity modulator; single narrow-linewidth optical source; transfer function; tunable free spectral range; tunable parameters; variable polarization beamsplitter; variable time delay line; Delay effects; Intensity modulation; Masers; Microwave filters; Optical filters; Optical mixing; Optical modulation; Optical polarization; Stimulated emission; Tunable circuits and devices; chirped Bragg grating; optical filters; optical mixing; photonic microwave notch filter;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Signal Processing and Communications, 2007. ICSPC 2007. IEEE International Conference on
Conference_Location :
Dubai
Print_ISBN :
978-1-4244-1235-8
Electronic_ISBN :
978-1-4244-1236-5
Type :
conf
DOI :
10.1109/ICSPC.2007.4728455
Filename :
4728455
Link To Document :
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