CWDM就是利用光复用器将不同波长的光信号复用至单根光纤进行传输,在链路的接收端,借助光解复用器将光纤中的混合信号分解为不同波长的信号,连接到相应的接收设备.
Type
2 Channels 4 Channels 8 Channels 16 Channels
Insertion Loss(dB)
<0.60 <1.80 <2.50 <3.50
Return Loss(dB)
>50
Operating Wavelength(nm)
(1270 ~ 1610) ±10, ±20,±20,±40
Channel bandwidth (nm)
λc ± 6.5
Channel flatness (dB)
<0.40
Directivity(dB)
>55
Channel uniformity (dB)
<1.0
Isolation (dB) - Demux adjacent channel
>30
Isolation (dB) - Mux or Reflection channel
>15
PDL (dB)
<0.15
PMD (ps)
<0.10
Wavelength thermal stability (nm/°C)
<0.003
Insertion loss thermal stability (dB/°C)
<0.005
Isolation (dB) - Demux non-adjacent channel
>40
Power handling (mW)
<500
Operating temperature
0 ~ +70
Storage temperature
-40 ~ +85
Dimensions (mm)
φ 5.5xL34 or φ 5.5xL31