Title :
Crosstalk reduction by using chirped fiber grating in a two-wavelength WDM transport system
Author :
Hai-Han Lu ; Wen-Xing Tsai ; Chien-Chih Liu
Author_Institution :
Dept. of Photonics, Nat. Taipei Univ. of Technol., Taiwan
Abstract :
Summary form only given. AM-VSB CATV transport systems can use a wavelength-division-multiplexing (WDM) technique to increase channel capacity. Crosstalk exists which is mainly caused by stimulated Raman scattering (SRS) and cross-phase modulation (XPM) interaction. This study presents a two-wavelength WDM externally modulated transport system which used a chirped fiber grating (CFG) as a dispersion compensation device to reduce the XPM-induced crosstalk. Good performances of carrier-to- noise ratio (CNR), composite second order (CSO) and composite triple beat (CTB) were obtained in this proposed system over a 100-km SMF transport. This technique will benefit the deployment of WDM transport systems.
Keywords :
cable television; channel capacity; chirp modulation; diffraction gratings; optical crosstalk; optical fibre dispersion; optical noise; phase modulation; wavelength division multiplexing; 100 km; AM-VSB CATV transport systems; SMF transport; XPM-induced crosstalk; carrier-to- noise ratio; channel capacity; chirped fiber grating; composite second order; composite triple beat; cross-phase modulation; crosstalk reduction; dispersion compensation device; externally modulated transport system; stimulated Raman scattering; two-wavelength WDM transport system; wavelength-division-multiplexing; Channel spacing; Chirp; Crosstalk; Fiber gratings; Frequency; Loss measurement; Numerical simulation; Optical scattering; Pulse measurements; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics, 2002. CLEO '02. Technical Digest. Summaries of Papers Presented at the
Conference_Location :
Long Beach, CA, USA
Print_ISBN :
1-55752-706-7
DOI :
10.1109/CLEO.2002.1034206
