How Does Otdr Work
The Laser Emits a Pulse of Light at a Specific Wavelength, This Pulse of Light Travels Along the Fiber Being Tested, as the Pulse Moves Down the Fiber Portions...
The laser emits a pulse of light at a specific wavelength, this pulse of light travels along the fiber being tested, as the pulse moves down the fiber portions of the transmitted light are reflected/refracted or scattered back down the fiber to the photo detector in the OTDR.
What is an OTDR and how it works?
OTDR, short for optical time-domain reflectometer, is an optoelectronic instrument used to characterize an optical fiber. … OTDR injects a series of optical pulses into the fiber under test. It also extracts, from the same end of the fiber,light that is scattered or reflected back from points along the fiber.
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How do you use OTDR?
- Turn on OTDR and allow time to warm-up.
- Clean all connectors and mating adapters.
- Attach launch cable to OTDR. Attach receive cable (if used) to far end of cable.
- Set up test parameters on OTDR.
- Attach cable to test to end of launch cable. Attach receive cable (if used) to far end of cable.
- Acquire trace.
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