With the deployment of DWDM systems, high isolation channel is necessary to avoid the cross talk and Technica offers reflection filters based on fiber Bragg gratings featuring flat top response and steep roll down spectral that are available individually packaged or be combined with multiple filters to form a complete add/drop module.
Applications
DWDM system 50/100/200 GHz in fiber narrow band signal filtering
ASE filtering and wavelength blocking
OADM module
Key Features
High spectral efficiency and low insertion loss
Good Dispersion characteristics
Low cladding mode loss
Specifications
Center Wavelength: C +L band or custom
Reflectivity: 10 - 99.99% Top flat: typical >99.5 %
FWHM Bandwidth: 50/100/200 GHz Spacing ITU Grid at 100 & 50 GHz
FWHM Bandwidth Tolerance:
Bandwidth: 100Ghz :
Reflection @ - 0.5 dB :> 0.4nm
Reflection @ - 25 dB: 0.75 nm
Bandwidth: 50Ghz :
Reflection @ - 0.5 dB :> 0.25nm
Reflection @ - 25 dB: 0.5 nm
Adjacent Channel Isolation: >25 dB
Insertion loss: Typical 0.2 dB ( <0.1 with radiation mode suppressed fiber)
Cladding mode loss: <0.4dB (With double cladding suppressed fiber)
Fibe...
