Cisco Prisma BWDM Filters Data Sheet
Data Sheet
Page 1 of 4
Data Sheet
Prisma Band Wave Division Multiplexer (BWDM) Filters
Prisma
®
BWDM Filters provide a basic building block for multiplexing two or more bands
of different optical wavelength signals on a single fiber. Typical applications include
“overlay” of narrowcast and broadcast CATV signals and bidirectional transmission of
signals. The Prisma BWDM 1310/1550 devices are designed to provide low insertion loss
over a broad window in both 1310 and 1550 nm bands and to provide high isolation
between the two bands. The fused 1310/1550 BWDM has lower insertion loss, and has a
smaller form factor suited for outside plant usage.
“overlay” of narrowcast and broadcast CATV signals and bidirectional transmission of
signals. The Prisma BWDM 1310/1550 devices are designed to provide low insertion loss
over a broad window in both 1310 and 1550 nm bands and to provide high isolation
between the two bands. The fused 1310/1550 BWDM has lower insertion loss, and has a
smaller form factor suited for outside plant usage.
The BWDM Red/Blue and Red/Blue/Purple are used to combine 2 groups of narrowcast optical
signals in different bands. The BWDM 2 band and 5 band filters can be used to add up to 5 groups
of 8-channel Mux/Demux to form a 40-channel 100 GHz system. The Prisma BWDM 1310/CWDM
devices operate over the window in both 1310 and CWDM (1420 - 1620 nm) bands.
signals in different bands. The BWDM 2 band and 5 band filters can be used to add up to 5 groups
of 8-channel Mux/Demux to form a 40-channel 100 GHz system. The Prisma BWDM 1310/CWDM
devices operate over the window in both 1310 and CWDM (1420 - 1620 nm) bands.
The Narrowcast/Broadcast (NC/BC) Combiner is an all-inclusive module used to simplify
installation, maintenance and overall operation of multi-wavelength division multiplexing systems.
This product has one common input for the broadcast signals and eight individual inputs for the
(red or blue band) narrowcast signals. The outputs are a combination of narrowcast and broadcast
signals and have a built-in non-intrusive 5% test point for verifying signal levels at each port. The
NC/BC Combiner comes in either a 4 LGX size or 6 LGX size module. Both modules are the same
optically, but the 6 LGX version has more space between the rows of connectors for easy access.
installation, maintenance and overall operation of multi-wavelength division multiplexing systems.
This product has one common input for the broadcast signals and eight individual inputs for the
(red or blue band) narrowcast signals. The outputs are a combination of narrowcast and broadcast
signals and have a built-in non-intrusive 5% test point for verifying signal levels at each port. The
NC/BC Combiner comes in either a 4 LGX size or 6 LGX size module. Both modules are the same
optically, but the 6 LGX version has more space between the rows of connectors for easy access.
The Prisma BWDMs are packaged in an industry standard LGX-style module for indoor
applications and in raw-filter style for outside plant usage.
applications and in raw-filter style for outside plant usage.
Figure 1.
3-Port BWDM (1 LGX, Left) and NC/BC Combiner (4 LGX, Right)