Interesting discussion that waxes and wanes in our Industry. How important is cleaning these surfaces as we pass through 100-400gig and beyond? If cleaning is important, perhaps this paper might help move the question from "products" to "best practice" procedures.
Hi xwingz2,
Thank you for your question.
In order to achieve accurate and repeatable measurements all the connectors in your setup should be cleaned. It is very important to clean the fiber-optics connector, because fiber-optic connectors are very sensitive and can be easily damaged when connected to dirty or damaged cables and accessories. Click on the link below to see the microscopic damage sustained to the fiber-optic connectors.
Damaged Connectors Impact the Quality of Measurement
https://www.keysight.com/us/en/assets/7018-03686/white-papers/5991-1271.pdf
Click on this link to follow for more information about cleaning the fiber-optic connectors and the importance of it. In Keysight Cleaning Procedure for Lightwave Test and Measurement Equipment, go to page 18, called "5.1 Connectors" for a procedure to clean fiber-optic connectors.
http://literature.cdn.keysight.com/litweb/pdf/5963-3538E.pdf
I hope this helps!
Sincerely,
LaJuan