CWDM 1x2 device (Multimode)
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 |
Mux |
Demux |
Operating Wavelength |
nm |
1270, 1290, 1310,….1590,1610
1271, 1291, 1311,.…1591,1611 |
Center Wavelength Accuracy |
nm |
±0.5 |
Channel space |
GHz |
20 |
Channel Passband (@-0.5dB bandwidth) |
nm |
≥ 13 |
Channel Ripple |
dB |
≤0.3 |
Transmission insertion loss |
dB |
≤0.6 |
Reflection insertion loss |
dB |
≤0.4 |
Adjacent channel isolation |
dB |
NONE |
≥30 |
Non-adjacent channel isolation |
dB |
NONE |
≥40 |
Directivity |
dB |
≥35 |
Return loss |
dB |
≥35 |
Polarization Dependent Loss |
dB |
≤0.1 |
Polarization Mode Dispersion |
ps |
≤0.1 |
Wavelength thermal stability |
nm/℃ |
≤0.002 |
Insertion loss thermal stability |
dB/℃ |
≤0.005 |
Power handling |
mW |
300 |
Fiber type |
|
50/125um, 62.5/125um or customized |
Operating temperature |
℃ |
0 ~ +70 |
Storage temperature |
℃ |
-40 ~ +85 |
Package dimension |
mm |
5.5*34, 5.5*38 |
Above specification is for device without connector.
Devices with connectors, IL will be 0.3dB higher and RL will be 5dB lower.
Other specifications can be made on customer request.