EDM01-02: DAG 4.2S Card User Guide
©2005
8
Version 7: May 2006
3.2 Splitter Losses
Description
Splitters have the insertion losses marked on packaging or in
accompanying documentation.
A 50:50 splitter will have an insertion loss of between 3 dBm and 4 dBm
on each output
90:10 splitter will have losses of about 10 dBm in the high loss output,
and <2 dBm in the low loss output
Single mode
fibre loss
A single mode fibre connected to a multi-mode input has minimal extra
loss.
Multi-mode
fibre loss
A multi-mode fibre connected to a single mode input creates large and
unpredictable loss.
Wavelength loss
Splitters are designed for a particular wavelength. When mismatched, the
split ratio will be different from that which was intended.
