Santec PEM-320, Operation Manual

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POLARIZATION EXTINCTION RATIO METER PEM-320
5-1
5-1. Front Panel
5
Panel Descriptions
(1) PER Display Panel
Displays the value for polarization extinction ratio (PER) in dB.
(2) Optical Power Display Panel
Displays the optical power. The measurement unit can be set to either mW or dBm and is toggled by
pressing the Optical Power Unit Selector Key (5). The power is calibrated at the center wavelength
of the operating range of the PEM-320 unit; i.e. at 980nm, 1310nm, 1480nm or 1550nm.
(3) Optical Power Unit Indicator
Indicates unit of optical output power (mW or dBm).
(4) Polarization Angle Display Panel
Indicates the polarization angle of the light from the optical input in degrees. The angle is
measured with respect to the alignment notch on the optical connector; i.e. a value of zero is given
when the polarization axis is vertical and aligned with the alignment notch.
(1) (2) (3) (4) (5)
(12) (11) (10) (9) (8) (7) (6)