Santec pem-310 polarization extinction ratio per meter

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Subject: Santec pem-310 polarization extinction ratio per meter
Santec PEM-310 polarization extinction ratio (PER) meter
Measures Linear Polarization Extinction of 40 dB with a 10-Hz refresh rate
Polarization Extinction Ratio Meter provides accurate, real-time information
Santec PEM-310 Application Notes (pdf)
The PEM-310 Polarization Extinction Ratio Meter provides accurate, real-time information about the polarization state of light in an optical fiber. Incorporating a rapidly-rotating polarizer and a high-sensitivity detector circuit, the PEM-310 can easily measure linear polarization extinction of 40 dB with a 10-Hz refresh rate. In addition, polarization angle and optical power are displayed on the instrument panel. To facilitate usage in production environments, the PEM-310 is fully controllable through the GPIB interface, and provides an analog output for external monitoring.
Used. In good working condition.