![]() Power meters typically consist of a solid state detector (silicon for short wavelength systems, germanium or InGaAs for long wavelength systems), signal conditioning circuitry and a digital display of power. These and some other specialized instruments are described below.įiber optic power meters measure the average optical power out of an optical fiber. In order to perform these tests, the basic fiber optic instruments are the FO power meter, test source, OTDR, optical spectrum analyzer and an inspection microscope. Procedures for measuring absolute optical power, cable and connector loss and the effects of many environmental factors (such as temperature, pressure, flexing, etc.) are covered in these procedures. Most test procedures for fiber optic component specifications have been standardized by national and international standards bodies, including TIA (Core and cladding diameter, concentricity, etc.) OCWR (Optical Continuous Wave Reflectometer) And troubleshooting installed cables and networks is required.Īttenuation or Loss of Fibers, Cables & Connectorsīackscatter For Loss, Length and Fault Location) Measurement or inspection of geometrical parameters of fiber are essential for fiber manufacturers. ![]() Backscatter and wavelength measurements are the next most important and bandwidth or dispersion are of lesser importance. Optical power, required for measuring source power, receiver power and, when used with a test source, loss or attenuation, is the most important parameter and is required for almost every fiber optic test. Testing fiber optic components and cable plants requires making several measurements with the most common measurement parameters listed in the Table below. The FOA Reference For Fiber Optics - Fiber Optic Instruments ![]()
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