Agilent Technologies 81650A User Manual page 25

Laser source modules
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Definition of Terms
Agilent 81650A/1A/2A/4A/5A/6A/7A User's Guide, Third Edition
NOT E
Power reflected back from the radiating fiber end in general creates
instability in the laser cavity (mode jumps) resulting in output power
instability. The ratio of the incident optical power P
optical power P
symbol RL:
of an optical component is called return loss,
back
=
5/
10 log
Specifications
to the reflected
in
3
LQ
3
EDFN
25

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