GD∕J 115-2020 有线电视系统光放大器技术要求和测量方法（高清）.pdf

GD/J 1152020 Technical requirements and measurement methods for optical amplifier of CATV system -GD/J 1152020 I .II 1 .1 2 .1 3 .2 4 .3 4.1 .3 4.2 .3 4.3 .3 4.4 .3 4.5 .4 4.6 .4 4.7 C/NC/CTBC/CSO.5 4.8 MER.6 .7 GD/J 1152020 II GB/T 1.12009 GD/J 1152020 1 1 2 2.1 output optical power 2.2 working bandwidth 0dBm 2.3 input optical power range 2.4 noise figure SNRSNR 2.5 return loss 2.6 pump leakage 2.7 GD/J 1152020 2 modulation error ratioMER GB/T 740020113.1002 2.8 carrier to composite second order beat ratioC/CSO GB/T 740020113.1297 2.9 carrier to composite triple beat ratioC/CTB GB/T 740020113.1298 2.10 carrier to noise ratioC/N GB/T 740020113.1303 3 1 1 1 18dBm 20dBm 22dBm 24dBm 0dBm 2 1535nm1565nm 3 -3dBm10dBm 4 5.0dB 0dBm 5 6 -30dBm 7 C/N 111MHz159MHz6PAL-D167MHz1000MHz1038MHz6dB0dBm10km0dBm 8 C/CTB 5dB 9 C/CSO 5dB 10 MER 64QAM256QAM 6.875Mbaud 39dB GD/J 1152020 3 4 4.1 4.1.1 1 1 4.1.2 a)11550nm b)0dBm c)4.2 4.2.1 1 4.2.2 a)10dBm b)1535nm1565nm2nm 4.3 4.3.1 1 4.3.2 a)11550nm b)-3dBm10dBm0.5dB 4.4 4.4.1 23 GD/J 1152020 4 2 3 4.4.2 a)21550nm0dBm b)c)3 4.5 4.5.1 4 4 4.5.2 a)b)4 c)4.6 4.6.1 56 GD/J 1152020 5 5 6 4.6.2 a)51550nm980nm1480nm b)61550nm0dBm c)980nm1480nm 4.7 C/NC/CTBC/CSO 4.7.1 7 210km1 7 C/NC/CTBC/CSO 4.7.2 a)7111MHz159MHz6PAL-D167MHz1000MHz1038MHz6dB b)10dBm c)20dBm d)C/NC/CTBC/CSO GD/J 1152020 6 4.8 MER 4.8.1 8 210km1 8 MER 4.8.2 a)8111MHz159MHz6PAL-D167MHz1000MHz1038MHz6dB b)10dBm c)20dBm d),GD/J 1152020 7 1 GB/T 74002011 2 GY/T 3002016 3 GD/J 0912020 _