Santec PEM-320, Operation Manual

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POLARIZATION EXTINCTION RATIO METER PEM-320
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Introduction
The PEM-320 Polarization Extinction Ratio Meter provides accurate, real-time information about the
polarization state of light in an optical fiber. It can be used as a general purpose measuring instrument
but has been designed, in particular, to enable the accurate and rapid alignment of polarization
maintaining fibers to optical components. The rotating polarizer design, coupled with a high
sensitivity detector enable the PEM-320 to measure high linear polarization extinction ratios, of up to
40dB, with a 2.5Hz refresh rate.
The PEM-320 simultaneously displays values for polarization extinction ratio (PER), optical power
and polarization angle. These are the three critical parameters required for the alignment of
polarization maintaining fiber to optical components. In addition, the PEM-320 has full support
for GPIB and RS-232C communication interfaces together with an analogue data output. These
features provide the unit with unrivalled flexibility for integration into automatic measurement and
automatic fiber alignment systems.
The PEM-320 is easy to use, but to obtain the most from your unit we recommend that you read this
manual fully and become familiar with its contents prior to operation. We hope that you will be
satisfied with your purchase.