Title :
Tuning of an RF Optoelectronic Oscillator
Author :
Kotb, H.E. ; Safwat, A.E. ; Boghdady, H. ; Khalil, D.
Author_Institution :
Transmission Dept., Nat. Telecommun. Inst., Cairo
Abstract :
In this paper tunable RF optoelectronic oscillator based upon direct modulation of laser diode and an optical fiber RF filter is demonstrated using the dc driving current of the laser diode. The use of the optical fiber RF filter allows a sidemode suppression ratio of 30 dB at discrete oscillation frequencies with frequency step equals to the intrinsic modes of the feedback loop or the filter free spectral range. Experimental results are presented to verify the theoretical analysis
Keywords :
microwave filters; microwave oscillators; microwave photonics; optical fibre filters; optical modulation; semiconductor lasers; RF photonics; dc driving current; discrete oscillation frequency; feedback loop; laser diode modulation; optical fiber RF filter; sidemode suppression; tunable RF optoelectronic oscillator; Diode lasers; Feedback loop; Laser tuning; Optical fiber filters; Optical fibers; Optical filters; Optical modulation; Oscillators; Photodetectors; Radio frequency; Optoelectronic oscillators; RF Photonics; laser diode;
Conference_Titel :
Microwave Photonics, 2006. MWP '06. International Topical Meeting on
Conference_Location :
Grenoble
Print_ISBN :
1-4244-0203-4
Electronic_ISBN :
1-4244-0204-2
DOI :
10.1109/MWP.2006.346556
