03609nas|a2200457 i 4500 20260817162923.0 010799s1998 th uzm rtt 00| a1eng d .b11754151 AIT RSPR no. TC-98-6 Sun, Xue Application of multilevel quadrature amplitude modulation (M-QAM) to hybrid fibre/coaxial communication systems using erbium doped fiber amplifiers Bangkok : Asian Institute of Technology, 1998 60 p. Research studies project report ; no. TC-98-6 A research study submitted in partial fulfillment of the requirement for the degree of Master of Engineering, School of Advanced Technologies Research Studies Project Report (M. Eng.) - Asian Institute of Technology, 1998 This research work has described some of the fundamental features of M-QAM SCM optical transmission systems by using EDF As. This includes a short description of construction of lumped EDF A models and theoretical calculation results on the system performance. It was pointed out that the passive splitter plus inline amplifier network schemes are particularly interesting for the distribution of digital TV signals due to their compatibility with current receivers and higher distribution ratio. A key parameter of M-QAM-SCM system is the CNDR. We have therefore theoretically discussed the special effects of EDF As in M QAM-SCM communication systems with special focus on noise, distortion and intermodulation items. To achieve a higher CNDR, the power budgets of M-QAM-SCM optical systems are generally much tighter. So the best selection is the use low-cost TV receivers directly which is also following the basic aim for cost-effective system. The application of optical amplifiers is therefore mainly in terms of achieving an increased power budget. Even if so many noise and distortion items to prevent the realization of high distribution system, such properties may not limit the potential application of EDF As in M QAM-SCM systems, and theoretical results show that significant large scale distribution still can be reached. Telecommunication Fiber optics Zhang, Jian-Guo, Chairperson Sharma, A.B., Examination Committee Makelainen, Kimmo, Examination Committee AIT Partial Scholarship, Scholarship donor Asian Institute of Technology. Research studies project report ; no. TC-98-6 Full-Text http://203.159.5.9/ait-thesis/detail.php?q=B13076 .b11754151 mnait y 240503 0 990701 m a y 0 mnait mnait mnarc mnarc 22 40 20 Barcode : 30050120552806 CREATED : 2013-11-06 RECORD # : i12732096 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050120369672 CREATED : 2016-03-06 RECORD # : i1301769x LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211020812 CREATED : 2022-02-21 RECORD # : i13367845 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 Barcode : 30050211020804 CREATED : 2022-02-21 RECORD # : i13367857 LPATRON : 0 LCHKIN : - # RENEWALS : 0 # OVERDUE : 0 IUSE3 : 0 TOT CHKOUT : 0 TOT RENEW : 0 6721 6721 0 0 0 0 MAIN MAIN mnarc 2026-08-17 50.00 0 AIT RSPR no. TC-98-6 30050120552806 2026-08-17 16:29:23 3 2026-08-17 22 0 0 0 0 MAIN MAIN mnarc 2026-08-17 0 AIT RSPR no. TC-98-6 30050120369672 2026-08-17 16:29:23 2026-08-17 40 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT RSPR no. TC-98-6 30050211020812 2026-08-17 16:29:23 1 2026-08-17 20 0 0 0 0 MAIN MAIN mnait 2026-08-17 50.00 0 AIT RSPR no. TC-98-6 30050211020804 2026-08-17 16:29:23 2 2026-08-17 20