Systems and methods for creating localized refractive index modulations in an optical fiber
US7486858B2 · kind B2 · utility
1Cited by
5References
19Claims
0Family size
Assignee
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Key dates
| Filing date | May 16, 2007 |
| Grant date | Feb 3, 2009 |
| Priority date | — |
| Expiry date | May 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02204
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A technique is described for creating a localized modulation of an optical fiber's refractive index profile. A segment of optical fiber is loaded into a heating unit having a resistive heating element with a localized heating zone. A selected portion of the fiber segment is positioned within the heating zone, and the heating unit is used to create a refractive index modulation the selected fiber portion. The localized modulation is repeated along the length of the fiber segment to write a fiber grating. Also described is a resistive heating system for performing the described technique.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.