DWDM modules are mainly used in passive wavelength division multiplexing system module products, low insertion loss, low polarization, high channel isolation and high environmental stability and reliability.
1. Low insertion loss
2. Wide operating wavelength range
3. High isolation
4. High stability and reliability
5. Ultra flat wide pass band
1. CWDM/DWDM systems
2. System monitoring
3. Transmetters and Fiber lasers
4. Fiber optic instruments
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 |