INTRODUCTION
APPLICATIONS, cont.
Attenuation (Optical Loss) Measurements.
After a fiber cable has been installed and terminated, optical loss measurements can
be used to determine if the fiber is installed according to standards and specifications. A comparison between the actual power
measurement and the reference value determines how much optical power is lost through the link.
Optical Power Measurements.
Optical power is an absolute measurement of the amount of light intensity; i.e. “brightness”, and can
be measured either at the output of a transmitter (transmit power), or at the input of a receiver (receiver sensitivity). When in OPM
mode, Fiber OWL 7 certifiers can be directly attached to this equipment via a patch cord to check whether the transmitter is within the
manufacturer’s specified power range.
Fiber Continuity Testing.
Continuity can be measured with OPM mode in the Fiber OWL 7 by placing a calibrated light source on
one end of the fiber and the meter on the other end. This is also a simple way to measure the attenuation of the fiber.
6
LOSS MODE
SOURCE
Using a meter and a source, technicians can
measure the optical loss of optical fiber links.
METER
FIBER
CONTINUITY
SOURCE
Using a meter and a source, continuity
can be verified.
METER
OPTICAL POWER
MEASUREMENT
Measure
receiver
sensitivity
METER
METER
Measure
transmitter
power
