Method of changing the refractive index in a region of a core of a photonic crystal fiber using a laser
US7483615B2 · kind B2 · utility
14Cited by
3References
13Claims
0Family size
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Key dates
| Filing date | Feb 26, 2007 |
| Grant date | Jan 27, 2009 |
| Priority date | — |
| Expiry date | Mar 16, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/2552
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Fiber Bragg gratings were written in pure silica photonic crystal fibers and photonic crystal fiber tapers with 125 fs, 800 nm IR radiation. High reflectivites were achieved with short exposure times in the tapers. Both multimode and single mode grating reflections were achieved in the fiber tapers. By tapering the photonic crystal fibers scattering that would otherwise have occurred was lessened and light external to the fiber could reach the core effectively to write a grating.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.