# Fiber optic connector (PC-APC)

**URL:** <https://boards.straightdope.com/t/fiber-optic-connector-pc-apc/530196>\
**Category:** Factual Questions\
**Created:** [February 23, 2010, 11:54pm UTC](https://boards.straightdope.com/t/fiber-optic-connector-pc-apc/530196 "2010-02-23T23:54:29Z")\
**Posts on this page:** 3\
**Page:** 1

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**Author:** ![Fang](https://avatars.discourse-cdn.com/v4/letter/f/96bed5/32.png) [@Fang](https://boards.straightdope.com/u/Fang)\
**Post date:** [February 23, 2010, 11:54pm UTC](https://boards.straightdope.com/t/fiber-optic-connector-pc-apc/530196/1 "2010-02-23T23:54:29Z")

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This is kind of obscure but maybe by chance someone knows.

In my optics lab we have an adapter for converting FC/PC connectors to FC/APC (or vice versa). [Here is a picture of it](http://i.imgur.com/obfqR.jpg). It is about 7 cm long, black, and is polarization-maintaining. I have asked around, even some lab alumni and members of other labs, and nobody seems to know who bought it or the manufacturer. There is no brand name or logo on it. I’ve checked out a lot of the big optics companies (Thorlabs, Newport, Melles Griot, etc) as well as some smaller fiber suppliers and haven’t found it anywhere.

Does anybody know who makes this?

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**Author:** ![corefive](https://avatars.discourse-cdn.com/v4/letter/c/2acd7d/32.png) [@corefive](https://boards.straightdope.com/u/corefive)\
**Post date:** [February 25, 2010, 5:07am UTC](https://boards.straightdope.com/t/fiber-optic-connector-pc-apc/530196/2 "2010-02-25T05:07:02Z")

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These are the closest things I could find:

[http://search.newport.com/count/50/i/1/nav/1/q/\*/q2/Fiber%2520Optics/q3/Polarization%2520Components/x2/section/x3/chapter](http://search.newport.com/count/50/i/1/nav/1/q/*/q2/Fiber%2520Optics/q3/Polarization%2520Components/x2/section/x3/chapter)

[http://www.majorfiberoptics.com/CP%20Series%20PM%20Coupler%20Data%20Sheet.pdf](http://www.majorfiberoptics.com/CP%20Series%20PM%20Coupler%20Data%20Sheet.pdf)

1m patch cord FC/UPC to FC/APC here: [http://www.fiberoptics4sale.com/page/FOFS/CTGY/Fiber\_Polarization\_Maintaining\_PM\_Patch\_Cords](http://www.fiberoptics4sale.com/page/FOFS/CTGY/Fiber_Polarization_Maintaining_PM_Patch_Cords)

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**Author:** ![Isilder](https://avatars.discourse-cdn.com/v4/letter/i/cc9497/32.png) [@Isilder](https://boards.straightdope.com/u/Isilder)\
**Post date:** [April 23, 2023, 7:21am UTC](https://boards.straightdope.com/t/fiber-optic-connector-pc-apc/530196/4 "2023-04-23T07:21:04Z")

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Here is an FC PC to APC adaptor … [Optical Adapter - PC to APC (male/female), FC/SC/LC, oeMarket.com](https://www.oemarket.com/catalog/product_info.php/optical-adapter-apc-malefemale-fcsclc-p-258#:~:text=FC%2FPC%20and%20FC%2FAPC,their%20tips%20are%20polished%20differently).