Cisco Prisma BWDM Filters Data Sheet

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Data Sheet 
Prisma
®
 CWDM Filters 
Coarse Wave Division Multiplexing (CWDM) has gained prevalence in multi-wavelength 
digital transport architectures because it enables the use of very low cost un-cooled DFB 
laser transmitters.  Moreover, powering requirements are reduced and reliability is 
increased. 
Prisma
®
 CWDM filters provide the essential wavelength muxing/demuxing in these systems.  
Configurations of 1, 4, 8 or 10 channels are available to provide maximum design flexibility.  The 
single channel version can be ordered in any of the 10 standard ITU-grid wavelengths and 
functions as Optical Add-Drop Mux (OADM).  The 4, 8 and 10 channel versions are designed for 
minimum flat insertion loss. 
Figure 1.   
CWDM Filter in LGX style module & WDM OADM in raw filter package 
 
Features 
● 
Available in single channel Add/Drop or 4, 8 and 10 channel versions on standard ITU-grid 
wavelengths (1431 nm-1611 nm) on 20 nm spacing 
● 
Low Insertion loss (4, 8 and 10 channel versions optimized for minimum flat insertion loss) 
● 
SC/APC connectors standard, other options available 
● 
Industry Standard LGX-Style enclosures for indoor device 
● 
Raw-filter or cassette style package for outside plant applications 
● 
OADM available in raw-filter style package for outside plant applications 
● 
Mux/Demux available in cassette style package for outside plant applications 
● 
Applications such as Service Navigators, Games, and many other future applications 
 
 
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