1550nm Direct Modulated optical transmitter uses 1550nm DFB laser
as its light source.
Mainly used in the 20-25KM transmission of television signal, digital TV signal,
cable telephone and data signal, it is the important equipment in building large
and
middle-scale CATV optical fiber network.
Performance
|
Index
|
Supplement
|
Optic feature
|
Wavelength
|
(nm)
|
1548~1563
|
|
Equivalent noise intensity
|
(dB/Hz)
|
≤-160
|
RIN (20~1000MHz)
|
Output power
|
(dBm)
|
8
|
|
Return loss
|
(dB)
|
≥55
|
|
optical fiber connector
|
|
SC/APC
|
SC/APC
|
RF feature
|
Work bandwidth
|
(MHz)
|
45-862
|
|
Input level
|
(dBuV)
|
20
|
±2
|
Flatness
|
(dB)
|
≤±0.75
|
45~862MHz
|
Return loss
|
(dB)
|
>16
|
|
Input impedance
|
(Ω)
|
75
|
RF/INPUT
|
RF test
|
(dB)
|
0±1
|
|
CNR
|
(dB)
|
≥50
|
-1dBm receive
|
CTB
|
(dB)
|
≤-63
|
|
CSO
|
(dB)
|
≤-57
|
|
Power supply
|
(V)
|
90~265Vac
|
-48VDC optional
|
Work temp.
|
(°C)
|
-5~65
|
|
Size
|
(mm)
|
423×330×45
|
|