Title :
Active recirculating structures for UMTS noise and interference suppression
Author :
Ortega, B. ; Mora, J. ; Capmany, J. ; Pastor, D.
Author_Institution :
Inst. de Telecomun. y Aplicaciones, Univ. Politecnica de Valencia
Abstract :
We present a tunable microwave photonic filter based on an erbium doped fiber cavity formed by two chirped fiber Bragg gratings for noise and interference suppression in UMTS base stations. Experimental results demonstrate the feasibility of these filters for UMTS applications, and also show a large flexibility on their response based on the critical role of EDF gain in these systems. Tunability of the filters has been employed for UMTS channels selection and EDF gain has been tuned in order to achieve appropriate filter bandwidths. In this way, high Q multifunctional tunable filters are easily implemented
Keywords :
3G mobile communication; Bragg gratings; erbium; interference suppression; laser cavity resonators; microwave filters; microwave photonics; optical communication equipment; optical fibre amplifiers; optical fibre filters; wireless channels; EDF gain; Q multifunctional tunable filter; UMTS base station; UMTS channels selection; UMTS noise suppression; active recirculating structure; chirped fiber Bragg gratings; erbium doped fiber cavity; filter bandwidth; interference suppression; tunable microwave photonic filter; 3G mobile communication; Active noise reduction; Bandwidth; Fiber gratings; Finite impulse response filter; Interference suppression; Microwave filters; Optical fiber filters; Optical filters; Tunable circuits and devices; Erbium Doped Fiber; Fiber Bragg gratings; Microwave photonics; UMTS systems; recirculating structures;
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.2006.346532
