Measuring Optical Power - OptiFiber

The power meter option lets you monitor the output power produced by a source such as an optical network interface card or optical test equipment. You can also monitor the power received at the end of the cabling.
You can monitor power at 850 nm, 1300 nm, 1310 nm, and 1550 nm.
The power meter option is available with OFTM-5611, OFTM-5612, OFTM-5631, and OFTM-5632 modules.

From the Home screen, press F1 and select Power Meter, then press ENTER.
Now press TEST and select the wavelength of your source.
The measurement is a real time measurement. It is a continuous test. Any changes will be recorded by the OptiFiber. An example is shown below: 
The measurement units can be changed from dBm to µW by pressing F1.  
If you should see the following screen: 

Power Low 
  • Verify that the patch cord is connected to the tester's INPUT port and that all other connections are secure.
  • Verify that the wavelength you selected on the tester matches the source's wavelength.
  • If you are measuring the output of a source used for testing, verify that the source's output is set to continuous wave. The modulated output produces a lower power reading than the continuous wave output.
  • Verify that all patch cords and adapters are good and are of the appropriate type and core size for the source.
  • If you are measuring the power received through cabling, use the OTDR to check the cabling for faults.

Disconnect the source before connecting the OTDR to the cabling. Live sources can damage the OTDRs receiver.  

  • Clean all fiber connections, then retest.
  • Use a fiber microscope, such as the Fluke Networks FiberInspector probe, to inspect the fiber connectors. Polish the connectors if necessary, then retest.

Aprenda sobre:
- OTDR, Fiber Testing