Knowledge Base - Solution

Improving a poor OTDR trace

Friday, March 19, 2021
Submitted by ryan.grace on July 8, 2021 - 11:45am
Problem: 
I have a very poor looking OTDR trace. What can I do to try and "see" the fiber more clearly and clean up my trace?
Solution: 
First make sure you are using the correct pulse width. Too short a pulse width and you are running out of power by the time you reach the end of the fiber. Too long a pulse and you are oversaturating the line and causing a lot of ghosting. The second step is too increase your acquisition time. This will allow the OTDR to collect more samples to average which can improve the signal to noise ratio for a better trace. Inspect and clean connections to the OTDR and the fiber under test to ensure good launch conditions.

Product Family:

Support at Every Step

We provide support, services, comprehensive training and the resources you need. It’s all part of what we do to maximize the value of your VIAVI investment.

Value add services that compliment your VIAVI system solution and instrument portfolio to provide a total cost of ownership

Customer Service that provides Return Material Authorization (RMA) for repair and calibration

Technical education solutions, product training, and blended learning for technicians who are using new products or working with existing tools

Technical Assistance Center to assist you in using/configuring products or address issues regarding product performance