1. Product overview
WS-WT1500 series external modulation optical transmitter is one of the independent 1550nm laser transmission equipment productions of Wan Shuo, which has a complete independent intellectual property. It has high performance, high reliability and excellent performance and price ratio. It can be widely used in all kinds of medium and long distance digital and analog signal communication. The application scene includes large and medium-sized cable TV. Trunk and distribution network, CWDM/DWDM system, optical fiber sensing and security monitoring system.
2. Characteristics
●Using 32 bit high performance ARM processor and perfect automatic monitoring system circuit, it can monitor the output power of light and all kinds of working state of laser in real time, ensure stable output power of light, and ensure the laser is in the best working environment.
●The good modulator servo system, the unique "wind swing" mode of the modulator phase tracking system, the control process is more precise and delicate, the whole machine is suitable for a wider range of temperature.
●Using the microwave source controlled by CPU, the frequency and amplitude of the signal can be adjusted dynamically. The microwave signals of any frequency and amplitude can be generated, with less harmonics and a threshold range of 13-19dBm for SBS.
●The ITU wavelength tunable laser can be used to select the appropriate wavelength for signal transmission according to the actual network. (customized according to customer requirements)
●The external modulation technology has no chirp effect, very low dispersion distortion, and has good characteristics in the band, and the working bandwidth is 47~1000MHz.
●The predistortion system of RF signal can accurately match the pre distortion volume and the signal quality according to the signal intensity and modulation amplitude.
●The narrow line width (1MHz), low noise, DFB CW laser and LiNBo3 external modulator do signal modulation. To ensure that the system COS performance index is excellent, the fiber power is increased and the transmission distance is increased.
●RF gain is optional, AGC/MGC mode, OMI + 7dB range adjustable.
●19 inch 1U high standard frame, the front panel is embedded with blue and white 144*32 dot matrix LCD display. It can accurately display the work parameters and fault information of the equipment, and is equipped with the national standard II transponder, which can monitor the network management through the network.
●Hot plug dual power supply, you can choose DC48V or AC110V or AC220V.
| Test project | Technical indicators | ||
| Model | WS-WT1500-A | WS-WT1500-B | WS-WT1500-C |
| Optical wavelength | 1540-1563nm Fixed wavelength | ITU-T 1550nm Wavelength step adjustable | |
| Recommended transmission distance | 50km(analog)75km(digital) | 75km(analog)100km(digital) | 100km(analog)150km(digital) |
| Laser linewidth | ≤2nm | ||
| Edge mode rejection ratio | ≥45 dB | ||
| Output power | 1*2-1*9dBm | 2*5-2*9dBm | 2*5-2*9dBm |
| Output number | 1 or 2 ports optional | 2 ports | 2 ports |
| Optical connection form | FC/APC，SC/APC | ||
| Radio frequency AGC control range | 10dBuv | ||
| Radio frequency range | 47-862/1000MHz | ||
| Flatness | ≤0.75 | ||
| RF input signal level | 75-90dBuV | ||
| RF input impedance | 75Ω | ||
| RF input reflection loss | ≥16dB | ||
| CNR | ≥53dB | ||
| CTB | ≥65dB | ||
| CSO | ≥65dB | ||
| SBS Value | 13~16dBm Continuous tunable | 13~19dBm Continuous tunable | 13~19dBm Continuous tunable |
| Network management interface | RJ45 | ||
| Supply voltage | AC220V(160V ~ 265V) /AC110V（90 ~130V）/DC48V（38- 58V） | ||
| Working temperature | -5℃~+65℃ | ||
| Relative humidity | Max 95%，no condensation | ||
| Product net size | 483×410×44mm | ||
| Product packaging size | 625×625×160nm | ||
| Product weight | 8kg | ||
| Weight of the whole box product | 10kg(1pc) | ||
Explanation: the above technical parameters are measured in accordance with the technical conditions and measurement methods specified in GY/T 143-2000.
