Внешне кабельного телевидения модуляцией оптического передатчика

CATV Externally Modulated optical Transmitter Specification Description HCWT-1550nm external modulation optical transmitter is a common technology with the current international standard 1550nm external modulation optical transmitter, a light source machine with narrow line width (Typ. = 0.65MHz), low noise, continuous wavelength DFB laser help reduce the impact of dispersion. Modulation machine, using the United States JDSU CATV company dedicated LiNbO3 external modulator, to back to back CNR ≥ 53dB, CTB ≤-65dB, CSO ≤-65dB, SBS: 13, 16, 18dBm adjustable high targets. Machine is equipped with RS232 communication interface, and complete SNMP network management software, 1 +1 power backup, chassis temperature control can be achieved. Native built-in microcomputer automatic control circuit complete, accurate real-time monitoring laser output power and a variety of working conditions, to ensure stable output power, and effectively extend the working life of the laser HCWT-1550nm External Modulation Optical Transmitter for its high index, high reliability and excellent cost-effective for large and medium cable front-end, and the main trunk lines and distribution networks.