The Influence Of The Output Connector - Agilent Technologies HP E5574A User Manual

Due to their construction,
angled contact connectors
usually exhibit a higher
polarization dependent
loss than straight contact
connectors.
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Introducing the HP E5574A Optical Loss Analyzer
How to Obtain Exact Results
a specified polarization sensitivity of 0.003 dBpp for the
measurement of polarization dependent power variations.
If you are using the optical heads HP 81524A or HP 81525A,
respectively, please note that these heads are not suitable for
polarization dependent measurements.
The Influence of the Output Connector
The fiber pigtail optical output provides polarization dependent loss
measurements with the highest accuracy.
If your instrument is equipped with the straight or angled connector
option, please remember:
• Every connector or patchcord may induce measurement errors
caused by polarization dependent loss of the connector or
patchcord itself.
• It is important that you use high precision connectors with
excellent physical glass-to-glass contact. Even the slightest gap
within a connector pair will result in variable reflections, which
can cause high errors and which may affect the laser source, too.
• Every connector between the source, the device under test, and
the optical head reduces the overall sensitivity.
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