Automatic C+L Band
Bandwidth-Variable Tunable Filter <CVF-220CL>
CVF-220CL is the latest model of our popular CVF series of
advanced bandwidth-variable wavelength-tunable optical filter based on
our flexible optical filter tuning technologies. The filter is fully automatic
and can be operated in stand-alone mode via front panel control, or externally
controlled via the USB/RS232 or GPIB port. with a high wavelength precision
and repeatabilty. New features include automatic wavelength-tracking of
the input signal, wavelength meter, power meter and optical spectral analyzer
functions (down to 0.1nm resolution bandwidth.)
The center wavelength is tunable from 1525nm to 1610nm, and
the filter bandwidth is independently tunable from 0.1nm to 15nm. The filter
response of the CVF-220CL is an ideal flat-top profile with a very sharp
roll-off > 150dB/nm at the filter edges.
The CVF-220CL offers a relatively low insertion loss and polarization
sensitivity. More importantly, the CVF-200CL also exhibits an extremely
low chromatic dispersion within its passband, making it an ideal and flexible
tunable filter for various demanding laboratory or factory automation applications
requiring full tunability in optical filtering.
Bandwidth variable from 0.1nm to 15nm Wavelength tunning range from 1525nm to 1610nm Ideal flat-top filter response with sharp roll-off > 150dB/nm Side-mode suppression of typically 50dB Low chromatic dispersion within passband <1ps/nm Low insertion loss, low polarization
sensitivity Manually contolled via front panel or externally controlled with USB/GPIB.
Applications
Filter for factory automation and automated device tests Generation of ideal flat-top variable-band ASE for OSNR synthesis Flexigrid filtering, variable band filtering Narrow-band filtering for DWDM, CWDM channel filtering Optical signal selection/rejection with high suppression ratio Dispersion free spectral filtering for short pulses Adaptive and automated filtering of optical signals Channel or band filtering at high power (option upto 2W)
Typical Characteristics
Fig.1 Filter set at 0.1nm bandwidth tuning across C+L band.
Fig.2 Bandwidth tuned from 0.1nm to 15nm.
Typical Optical Performance
Fig.3 Spectral shape of the CVF-200CL at 0.1nm bandwidth.
Fig.4 Spectral shape at 6nm bandwidth with 45dB OBS.
Fig.5 Filter spectra tuned across C-band at 5nm bandwidth.
Fig.6
Filter in-band group delay dispersion at 10nm bandwidth.
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Bandwidth variable from 0.1nm to 15nm
