1550 Lichtwellenleiter-Sender

the external modulated 1550 Fiber Optic transmitter, adopts DFB laser diode light sources; with the help of modulator, it can transfer video, sound, telephone, and data signals; combining with the optical amplifier,it is widely used in ring network, distribution network, and long-distance transmission of countryside. 1550nm transmits the signal to poled glass fiber after SBS suppression process, and finally the signal will transfers to the high-performance external Lithium niobate modulator. RF signal, which is controlled by biasing circuit and SBS suppression circuit, passes through AGC, amplifier,pre-distortion process, and finally transmits to the external modulator. The maximum SBS suppression is 18dBm. Product feature Adopts low-noise, DFB original light; adopt high-linear LiNb03 Modulator for signal modulation. Advanced pre-distortion circuit design, when it reaches CNR, CTB and CSO are well performance. Advanced SBS suppression circuit, adjustable SBS threshold (13, 16, 18 dBm) Auto-gain AGC control, maintain stable output performance with changeable RF input power level. Automatic case temperature control. This machine is with processor software, which provides laser monitoring, data display, trouble warning, and network management, etc. once the machines works abnormal, the system will send out the error warning. Providing RS-485 and RJ45 network management port, which is for PC network management and monitoring; optical features link features:wavelength1550±5nmC/N ≥53dBoptical reflection loss≥45dBCTB ≥65dBcoutput optical power≥7dBmCSO ≥65dBcRF features:Other parameter.working bandwidth 45870MHzworking temperature: 0+50RF in-band flatness±0.75dBstorage temperature: -40+85RF input power level.80±5dBμV(77 NTSC channels)power supply: AC 90260V,50/60HzRF input reflection loss≥16dBconsumption: 20W(typical) RF input impedance75Ωweight5.5Kg