Coarse wavelength division multiplexing (CWDM) is a method of combining multiple signals on laser beams at various wavelengths for transmission along fiber optic cables, such that the number of channels is fewer than in dense wavelength division multiplexing (DWDM) but more than in standard wavelength division multiplexing (WDM). CWDM features low insertion loss, Low polarization dependent loss, high channel isolation and excellent environmental stability and epoxy free optical path. It’s been widely used for many applications, such as Line Monitoring, Metro WDM system, Telecommunication, Cellular Application, Fiber Optical Amplifier, access Network.
Specification
|
Parameter |
Unit |
Value |
|
Central wavelength |
nm |
1260~1620 |
|
Configuration |
|
1x18 |
|
Channel wavelength |
nm |
1271 1291 …… 1391 1411 1431
1451 1471 …… 1571 1591 1611 |
|
Passband Bandwidth |
nm |
≥13 |
|
Channel Insertion loss |
dB |
≤3.6 |
|
Channel Ripple |
dB |
≤0.5 |
|
Adjacent channel isolation |
dB |
≥30 |
|
Non-adjacent channel isolation |
dB |
≥45 |
|
Directivity |
dB |
≥55 |
|
Return loss |
dB |
≥45 |
|
Polarization Dependent Loss |
dB |
≤0.2 |
|
Polarization Mode Dispersion |
ps |
≤0.2 |
|
Power handling |
mW |
300 |
|
Operating temperature |
℃ |
0 ~ +70 |
|
Storage temperature |
℃ |
-40 ~ +85 |
|
Dimensions |
mm |
Stainless steel 50*38*6 |
The above specification is without connector
Other specifications can be made on customer request.
Fused Coupler
