Title :
Comparison of externally and directly modulated AM-VSB CATV EDFA-repeatered supertrunking systems using split-band and WDM techniques
Author :
Liu, Y.L. ; Lee, C.C. ; Wang, C.S. ; Tu, Y.K. ; Chen, Y.K.
Author_Institution :
Inst. of Electro-Optical Eng., Nat. Sun Yat-Sen Univ., Kaohsiung, Taiwan
Abstract :
In this paper, the externally modulated (EM) and directly modulated (DM) 80-channel AM-VSB video EDFA-repeatered systems using band-split and WDM techniques for CATV long-span supertrunking application are investigated and compared. We find that similarly high CNR with CSO/CTB values after 110 km of conventional single mode fibre (SMF) can be achieved for both such systems. Furthermore, the DM one is more simple and cost-effective than the EM one
Keywords :
amplitude modulation; cable television; optical fibre subscriber loops; optical modulation; optical repeaters; wavelength division multiplexing; 110 km; AM-VSB CATV EDFA-repeatered supertrunking systems; AM-VSB video EDFA-repeatered systems; CATV long-span supertrunking application; WDM techniques; directly modulated; high CNR; single mode fibre; split-band techniques; Brillouin scattering; Delta modulation; Fiber nonlinear optics; Optical attenuators; Optical filters; Optical receivers; Optical transmitters; Phase modulation; Stimulated emission; Wavelength division multiplexing;
Conference_Titel :
Lasers and Electro-Optics Society Annual Meeting, 1997. LEOS '97 10th Annual Meeting. Conference Proceedings., IEEE
Conference_Location :
San Francisco, CA
Print_ISBN :
0-7803-3895-2
DOI :
10.1109/LEOS.1997.630661
