The MS9020D is a handy optical measuring instrument which incorporates an LED and an LD light sources and an optical
power meter. It can also be used for fiber break point and return loss measurement. Every unit of the LED source, the LD source, the sensors and the return loss measurement unit is a plug-in type, for easy exchange and highest suitability for field use.
The MS9020D covers 0.66 μm, 0.85 μm, 1.3 μm and 1.55 μm bands for optical loss measurement. In addition to the CW mode, it provides a modulated light mode with 270 Hz, 1 kHz and 2 kHz modulation signals. Therefore, it is possible to measure optical loss over a wide dynamic range without stray light effect. For return loss, 1.3 μm band single mode fibers can be measured in 0 to 40 dB range. As a power meter, every sensor has a wavelength calibration function of 5 nm steps at three wavelengths, so absolute values can be read directly.
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