The ERM2xx Extinction Ratio Meters are designed to measure the polarization extinction ratio and the polarization angle of polarization-maintaining fibers (PM fibers) for any kind of alignment application such as connectorization of PM fibers or pigtailing of laser diodes with PM. The ERM2xx Extinction Ratio Meters are designed to measure the polarization extinction ratio and the polarization angle of polarization-maintaining fibers (PM fibers) for any kind of alignment application such as connectorization of PM fibers or pigtailing of laser diodes with PM. The ERM2xx Extinction Ratio Meters measure the polarization extinction ratio (PER) and the polarization angle of polarization-maintaining (PM) fibers. Remote control utility for the ERM100 Extinction Ratio Meter. Windows™ 2000 with ServicePack 3 or later. National Instruments™ VISA Engine V4. 0 or. The ERM220 from Thorlabs Inc is a Polarization Extinction Ratio Meter with Input Optical Power 8 dBm, Wavelength Range 1200 to 2500 nm, Polarization Extinction Ratio (PER) Range 0 to 40 dB, PER Accuracy <0. These easy-to-use benchtop devices are useful in alignment applications such as connectorization of PM fibers or pigtailing of laser diodes with PM.
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