As optical fiber usage widens, a new kind of optical fiber connector becomes necessary. This connector would be connecting two optical fiber bundles with different speeds around an axis without interruption. It is difficult to make such a connector, especially one with a hollow axis used for mechanical power transmissions. Using an optical fiber bundle for an image inversion and a differential gear system, we have developed an optical rotary connector with a hollow axis that can be used for a multichannel connection.
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