1x2 CWDM Device
CWDM (Coarse Wavelength Division Multiplexer) is a sparse wavelength division multiplexer, also known as a coarse wavelength division multiplexer. CWDM has 18 different wavelength channels, each with different wavelengths separated by 20nm, using wavelengths from 1270 nm to 1610 nm. CWDM supports fewer channels than DWDM because it is compact and cost-effective, making it an ideal solution for short-range communications. The biggest advantage of CWDM system is the low cost, and the device cost is mainly reflected in the filter and laser.
Product Features：
- High Isolation & Return Loss
- Wide Pass Band
- High Channel Isolation
- High Stability and Reliability
- Epoxy free on optical path
Product Application：
- Line monitoring and WDM Network
- Telecommunication
- Fiber optical Amplifier and Access Network
Product Parameters：
|
Parameter |
|
Unit |
Specification |
|
Operating Wavelength |
nm |
1270 to 1610 |
|
|
Center Wavelength Accuracy |
nm |
±0.5 |
|
|
Channel Spacing |
nm |
20 |
|
|
Channel Passband (@-0.5dB bandwidth) |
nm |
>13 |
|
|
Pass Channel Insertion Loss |
dB |
≤0.6 |
|
|
Reflection Channel Insertion Loss |
dB |
≤0.4 |
|
|
Channel Ripple |
dB |
<0.3 |
|
|
Isolation |
Adjacent |
dB |
>30 |
|
Non-adjacent |
dB |
>40 |
|
|
Insertion Loss Temperature Sensitivity |
dB/℃ |
0.005 |
|
|
Wavelength Temperature Shifting |
dB/nm |
0.002 |
|
|
Polarization Dependent Loss |
dB |
<0.10 |
|
|
Polarization Mode Dispersion |
ps |
<0.1 |
|
|
Directivity |
dB |
>50 |
|
|
Return Loss |
dB |
>45 |
|
|
Maximum Power Handling |
mW |
300 |
|
|
Operating Temperature |
℃ |
-5~+70 |
|
|
Storage Temperature |
℃ |
-40~+85 |
|
|
Package Dimension |
mm |
Φ4.5x25 or Φ5.5x30 |
|
