High performance 1550 nm direct modulated inter-cut (narrow-bandwidth multiplex) fiber optical transmitter specially for realizing two-way television interactive operation (VOD) for CATV network, mainly used in second service area to inter-cut IP/QAM or local program.
Full optical 1550nm, video data inter-cut operation
1550 nm 2-way (VOD) CATV external modulation fiber optical transmitter is a high performance 1550nm direct modulated inter-cut (narrow-bandwidth multiplex) optical transmitter which design and manufacture specially for realizing two-way television interact operation (VOD) for CATV network, mainly used in second service area to inter-cut IP/QAM or local program. In the content distribute network system (CON), this model is the VOD flow rate loading equipment, also often called the edge IP/QAM optical transmitter.
Fiberbit according to the multi-year application experience in inter-cut system designed all the functions for VOD1504 that Overlay need, which make it convenient for customers to apply and debug.
Build-in WDM, realizing the multiplex of main signal and inter-cut optical. The panel with main signal optical input port and join-wave output port can extra simplify the connection.
Build-in electronic-control VOA, customer can set the optical power ratio of inter-cut and main signal according to system demand. After setting, the whole unit system software can in line with the change of main signal optical power, via VOA, adjust the inter-cut output optical power automatically that can make the difference controlled in the range of customer set, extra simplify the system debugging.
Excellent optical modulation degree controlled automatically, can in line with inter-cut channels automatically, keep the modulation degree consistent. For convenient adjustment, inside equipment adds one set manual operation modulate level control circuit (MGC).
This model adopts high linearity DFB laser. ITU standard wavelength ±1.6nm adjustable. Excellent predistortion compensation, perfect APC,ATC, AWC control, 1+1 power backup, support hot plug. The advanced SNMP network management function, support remote management and control.
ITU standard wavelength, ±1.6nm adjustable
Build-in WDM, the panel with main signal optical input port and join-wave output port, offer simple connection
The difference of main signal input optical power and inter-cut optical power can be set by panel and SNMP
Identify and track the main signal optical power automatically, adjust the inter-cut output optical power automatically via VOD, to keep the difference in the range set by customer
High performance optical modulation degree auto-control, can keep the modulation degree consistent, in line with inter-cut channels
Independent manual operation modulate level control circuit (MGC), make the system convenient to debug
High linearity 1550nm DFB laser
High performance predistortion correction, excellent APC,ATC, AWC control
High performance SNMP network management function, support remote management and control
1+1 power backup, support hot plug
Industrial excellent cost performance
CATV fiber optical transmitter general specifications
Main signal work wavelength
CR ( Red-Band )
XX ( ITU wavelength code )
DW, CW, BW
Input optical power range
Optical power ratio setting range
The main, vice opitcal power ratio
Inter-out optical operating wavelength
Laser OFF when main signal low than this value
Inter-cut optical operating wavelengthh
XX ( ITU wavelength code )
CB ( Bule-Band )
Wavelength adjustable range
wavelength adjustable mode
± 0.05nm stepping
(Pm/ ℃ )
Side suppression ratio
Equivalent noise intensity
Output optical power
VOA insertion loss
VOA adjustable range
VOA adjustable accuracy
VOA polarization relative loss
MGC adjustable range
MGC adjustable step
F - Female
Single power works
Machine temp. control automatically
Operating relative humidity
VOD Overlay 1550nm Direct Modulated Optical Transmitter, Optical Power Range Ordering Options: -2 ~ +3dbm, -5 ~ +5dbm, 0 ~ +7dbm, working wavelength choices are 1528 - 1543 nm, 1548 - 1563, connector choice any of SC/APC. LC/APC or FC/APC
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