China CATV 1550nm Intelligent Direct Modulated Optical Transmitter

Product Description
WT-1550-DM intelligent directly modulated optical transmitter is mainly used in 1550nm optical fiber transmission system. Adopt advanced electronic dispersion compensation technology, accurately compensate according to the actual transmission distance by 1km stepping. The maximum compensated distance up to 50km.
WT-1550-DM intelligent directly modulated optical transmitter is the most important equipment to construct the CATV network. It mainly used for the value-
Added services of TV image signal, digital television signal, telephone voice signal and data (or compressed data) signal. By built-in WDM, multiplex the inter-cut optical signal and the main optical signal then output. After setting required optical difference, the perfect adjustable optical attenuation function can automatic control the inserted optical signal according to the main optical signal, realize inter-cut system full automatic adjustment. Provide high quality low cost solution for all-optical relay 1550 optical fiber CATV system, and local value-added services inter-cut.
Characteristics:
1. Patent pre-distortion circuit.
2. The optical fiber distance is adjustable according to the actual use condition by 1km stepping
3. WT-1550-DMII: Built-in WDM, multiplex the inserted optical signal and the main optical signal then output.
4. WT-1550-DM III: Built-in WDM and adjustable ATT.

ItemUnitTechnique ParametersOutput optical powermW10Optical wavelengthnm 1550±10 (have to be ITU wavelength when with inter-cut function)Dispersion compensation distanceKm≤50Laser type DFB laserOptical modulation mode Direct optical intensity modulationOptical connector type FC/APC or SC/APCFrequency rangeMHz47-862/1003RF input leveldBuV75-85Flatness in banddB±0.75RF input impedanceΩ75Input return lossdB≥ 16C/CSOdB≥ 6025Km optical fiber, 0dB receivedC/CTBdB≥ 65C/NdB≥ 51AGC control rangedB±5MGC control rangedB0-20Supply voltageVAC 110V-250V (50Hz)ConsumptionW30Operating temperatureº C0 -- 45Storage temperatureº C-20 -- +65Relative humidity%Max 95% no condensationDimensionmm483(L)x380(W)x44(H)