Electrically Controllable, C+L Band
Bandwidth-Variable Tunable Filter <CVF-200CL>
CVF-200CL is the motorized and C+L band version of the latest
advance tunable optical filters, BVF-200, based on our flexible optical
filter tuning technologies. It can be operated in stand-alone mode via
front panel control, or externally controlled via the USB/RS232 port with
a high wavelength precision and repeatabilty.
The center wavelength is tunable over the entire C+L band from
1525nm to 1610nm, and the filter bandwidth is independently tunable from
0.1nm to 13nm. The filter response of the CVF-200CL is an ideal flat-top
profile with a very sharp roll-off > 150dB/nm at the filter edges.
The CVF-200CL 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 13nm 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 Narrow-band filtering for DWDM, CWDM channel filtering Optical signal selection/rejection with high suppression ratio Dispersion free spectral filtering for short pulses Applications requiring variable passband Adaptive and automated filtering of optical signals
Typical Characteristics
Fig.1 Filter set at 0.2nm bandwidth tuning across C+L band.
Fig.2 Bandwidth tuned from 0.1nm to 13nm.
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.
Bandwidth variable from 0.1nm to 13nm
