Compensating for non-ideal multi-core optical fiber structure
US8531655B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Sep 15, 2011 |
| Grant date | Sep 10, 2013 |
| Priority date | — |
| Expiry date | Mar 13, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02042
- WIPO fieldMeasurement
- WIPO sectorInstruments
Abstract
An interferometric measurement system includes a spun optical fiber including multiple optical waveguides configured in the fiber. Interferometric detection circuitry detects measurement interferometric pattern data associated with each of the multiple optical waveguides when the optical fiber is placed into a bend. Data processing circuitry determines compensation parameters that compensate for variations between an optimal configuration of the multiple optical waveguides in the fiber and an actual configuration of multiple optical waveguides in the fiber. The compensation parameters are stored in memory for compensating subsequently-obtained measurement interferometric pattern data for the fiber. The compensation parameters are applied to the subsequently-obtained measurement interferometric pattern data in order to distinguish between axial strain, bend strain, and twist strain on the fiber and to accurately determine one or more strain values for the fiber corresponding to one or more of the axial strain, bend strain, or twist strain on the fiber.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.