With the development of DWDM systems, high isolation channel is necessary to avoid crosstalk. Based on Raysung’s FBG, our athermal DWDM FBG filter features for flat top response and a steep roll down spectral range, which is available in an individual package or combined with multiple filters to form a complete add/drop module. The specifications for Raysung's Athermal DWDM FBG filter are listed in the tables below.
Features
- Low insertion loss
- Athermal package
- High channel isolation
- Accurate ITU grid
- Excellent long-term stability
Applications
- DWDM system 50/100/200 GHz in fiber narrowband signal filtering
- OADM module, mux/demux
- Wavelength selection or rejection filter
Parameters | Specifications |
Reflection Band Center Wavelength Range | C&L Band |
Reflection Band FWHM Bandwidth | 10GHz~200GHz |
Reflectivity at Reflection Band | >50%~99.9% |
Adjacent Channel Isolation | >15dB.>20dB |
Pass Band Insertion Loss(Without connector) | <0.1dB |
Center Wavelength Thermal Dependence | <1.0pm/°C |
Termination | Bare fiber or connector |
Operation Temperature | -5°c~70°c |
Storage Temperature | -45°c~85°c |
Package Dimension | Φ8mm*89mm |