Optical power meter is used for absolute optical fiber power measurement as well as fiber optic loss related measurement. Optical light source is used with power meter to test the fiber system loss. Multimeter is an integrated unit of power meter and light source. OTDR is classic fiber optic test equipment, it is most easy to use but it is also one of the most expensive, OTDR could give you an overview of the whole system you test and it could test the whole system fiber length, joint point and loss. Fault locator’s name already express its function, it could be regarded to be part of OTDR and fiber fault locator is cheap.
June 17, 2011