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I need information on cleaning and repairing TOSA/ROSA devices.  Is this something you can help them with?   



We have done design work on the TE transceivers in the past.  Depending on the internals you are able to clean (more or less). There are in fact two types, ferrule based or molded based.

The ferrule based internal parts you can clean with the standard swabs/sticks you use when cleaning adapters in panels etc.

The molded parts are more difficult to clean. Due to the z-direction alignment in the adapter there is a stop where the ferrule need to reference to. That makes the cleaning even harder because the diameter is smaller than the ferrule diameter. In this area is often the collimating lens to concentrate the in- or out coming light into or out of the fiber. There are special swabs which are able to clean the ‘sleeve’ alignment part of the transceiver but also have a center piece (tip) that is able to touch the collimating lens and clean the lens surface without leaving any residue or scratch the lens surface. Do not use IPA at this surface, only ferrule cleaning fluid that evaporate quickly and leaves nothing!

Most suppliers of the molded optical housings for the transceivers have special cleaning instructions, and specify the ‘profile’ of the cleaning tip, the method and fluid to use!

We suggest you look for the cleaning instructions based on your molded optic supplier.  If you can find and share the specified cleaning tip, FOC can supply them.


  Answered by AskFOC Technical Team May 30, 2017


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Kathleen Skelton

About Kathleen Skelton

Kathleen Skelton, Director of Strategic Marketing's experience includes management positions at Lightwave, KMI Research, PennWell Publishing, Beacon Communications, and Security Innovations, Inc. As a strategic marketing director, she utilizes her expertise in business development, online strategy, marketing planning, digital best practices, standard operating procedures development, and database design, management and training. Kathleen has global business and marketing experience. Outside of FOC, Kathleen is passionate about her volunteer work for several organizations and works with youth groups teaching business strategy for various community projects. In her volunteer work, Kathleen is committed to developing tomorrow's leaders through exciting, strategy-focused business education. This mission guides all of her work outside of the corporate office. Kathleen graduated from Curry College with a BA in Communications and Education and minors in English and Psychology. Kathleen resides outside of Boston, MA with her husband and four children. Follow @KATHLEENSKELTON