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Bandwidth-Variable Tunable Filter |
Bandwidth-Variable Tunable Filter <BVF-200CL>
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BVF-200CL is the latest C+L-band extended model for the popular
BVF-200 series of advance tunable optical filters based on our flexible
optical filter tuning technologies. The filter center wavelength is completely
tunable over the entire C+L-band, from 1530nm - 1610nm, with independently
tunable bandwidth from 0.1nm to 13nm. The filter response of the BVF-200CL
is an ideal flat-top profile with extremely sharp roll-off at the filter
edges, together with a strong out-of-band suppression of typically 50dB
readily achievable.
The BVF-200CL allows very narrowband filtering down to 0.1nm
which is ideal for stringent filtering of 10Gb/s DWDM signals, and a wideband
operation upto 13nm (larger bandwidths are possible as a custom option).
It also exhibits an extremely low chromatic dispersion within its passband
of <1ps/nm which is important for filtering of short optical pulses
at large bandwidth setting. All these properties makes the BVF-100CL an
ideal and flexible tunable filter for various demanding applications requiring
full tunability in optical filtering.
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Datasheets
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Key Features
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 Bandwidth variable from 0.1nm to 13nm
Center wavelength tunning range over 80nm from 1530nm to 1610nm
Ideal flat-top filter response with
sharp roll-off
Out-of-band suppression of >40dB, typically 50dB
Low chromatic dispersion within passband <1ps/nm
Low insertion loss, low polarization
sensitivity
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Applications
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WDM, CWDM channel filtering
Optical signal selection/rejection
Narrowband DWDM signal extraction
Noise rejection for ultra-low-noise amplification
Dispersion free spectral filtering for short pulses
Applications requiring variable
passband
Adaptive filtering of optical signals
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Typical Characteristics
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| Fig.1 Filter set at 0.2nm bandwidth tuning across 80nm range. |
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Fig.2 Bandwidth tuned from 0.1nm to 13nm. |
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Typical Optical Performance
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| Fig.3 Spectral shape of the BVF-200CL at 0.1nm bandwidth. |
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Fig.4 Spectral shape at 6nm bandwidth with >45dB out-of-band suppression. |
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| Fig.5 Filter spectra tuned across C+L-band at 5nm bandwidth. |
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Fig.6
Filter in-band group delay dispersion at 10nm bandwidth. |
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