User`s guide

Optical Output Getting Started with the Agilent 81600B Tunable Laser Source Family
Agilent 81600B Tunable Laser Source Family, Fourth Edition 21
Optical Output
Polarization Maintaining Fiber
All Agilent 81600B Tunable Laser Source Family modules include
polarization maintaining fiber (PMF) outputs, aligned to maintain the state
of polarization.
The fiber is of Panda type, with TE mode in the slow axis in line with the
connector key. A well defined state of polarization ensures constant
measurement conditions.
Figure 3 PMF Output Connector
Angled and Straight Contact Connectors
Angled contact connectors help you to control return loss. With angled
fiber endfaces, reflected light tends to reflect into the cladding, reducing
the amount of light that reflects back to the source.
Agilent 81600B Tunable Laser Source Family modules can have the
following connector interface options:
• Option 071, Polarization-maintaining fiber straight contact connectors,
or
• Option 072, Polarization-maintaining fiber angled contact connectors.
E
H
Slow Axis (Polarization Axis)
Connector Key
Fiber Cladding
Fiber Core
(9-µm Diameter)
Stress Rods
Not to Scale