Interferometric measurement method for end face surface angle of multi-fiber ferrules and connectors
AssigneeSumix
InventorFarhad Towfiq
Life of this patent
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Abstract
An interferometric measurement method aims at calculating end face surface angle of multi-fiber connector or ferrule taking into account parallelism deviation angles of the connector or ferrule guide holes. The parallelism deviation angles are measured by scanning the side surfaces of guide pins inserted into the guide holes, which is done simultaneously with the end face scanning Interferometric data from connector or ferrule end face and side surfaces of the guide pins is gathered during one scanning session—either one simultaneous scan or several scans without moving or re-inserting the connector or ferrule.
Claims4
A method for interferometric measurement of end face surface angle of multi-fiber optic connectors and ferrules that takes into account parallelism deviation of guide holes, the method comprising the steps of:
- obtaining interferometric data simultaneously from male connector guide pins, or from guide pins inserted into female connector or ferrule, by scanning them from side, and from connector or ferrule end face;
- calculating relative angles of the guide holes as parallelism deviation angle values;
- calculating end face surface angle values taking into account the parallelism deviation angle values of the guide holes.
A method for calibrating angles of the fixture mirror surface that turns the images from the guide pins of the connector or ferrule and directs it into the interferometric microscope.
Dependencies are inferred from the claim text.