Using an MPO Optical Power Meter and an MPO Optical Light Source together allows you to measure optical power loss and ensure the proper functioning of MPO fiber optic networks. Here's a step-by-step guide on how to use them effectively:
1. Understanding the Devices
MPO Optical Power Meter: Measures the optical power level at different wavelengths and calculates insertion loss when paired with a light source.
MPO Optical Light Source: Emits a stable optical signal at specific wavelengths for testing fiber links.
2. Setup & Preparation
Step 1: Ensure Cleanliness
Clean all MPO connectors using an MPO cleaner to remove dust or debris.
Use an MPO inspection scope to verify clean fiber end faces.
Step 2: Turn On the Devices
Power on both the MPO Optical Light Source and MPO Optical Power Meter.
Select the appropriate wavelength (e.g., 850nm, 1310nm, 1550nm) based on the fiber type (multimode or single-mode).
3. Conducting the Test
Method 1: Direct Power Measurement
Connect the MPO fiber cable to the MPO Optical Light Source.
Connect the other end of the fiber cable to the MPO Optical Power Meter.
The power meter will display the received optical power in dBm.
Compare the measured power with the expected values to ensure proper transmission.
Method 2: Insertion Loss (IL) Measurement
Reference Calibration:
Connect the MPO Optical Light Source directly to the MPO Optical Power Meter using a short reference MPO patch cord.
Set the power meter to zero reference to establish a baseline.
Connect the MPO Fiber Link Under Test:
Disconnect the reference patch cord from the power meter.
Insert the MPO link to be tested between the light source and power meter.
Measure the Loss:
The power meter will now display the insertion loss (measured in dB).
Compare with acceptable MPO fiber loss standards (typically ≤0.35dB per connection for SM and ≤0.5dB for MM).
4. Interpreting Results
Low loss (within acceptable range) → The fiber link is in good condition.
High loss (above acceptable range) → Possible causes include dirty connectors, misalignment, bad splicing, or damaged fiber.
5. Best Practices
Always clean MPO connectors before testing.
Use proper adapter types (MPO-12, MPO-24) matching your system.
Perform tests at multiple wavelengths if required.
Store results for documentation and future reference.
