Method of manufacturing CO2 laser grooved long period fiber gratings
US7664351B2 · kind B2 · utility
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9Claims
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Key dates
| Filing date | Mar 8, 2007 |
| Grant date | Feb 16, 2010 |
| Priority date | — |
| Expiry date | Mar 8, 2027 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02B6/02095
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In the present invention, methods and systems for fabricating novel LPFGs are taught. Fabrication is preformed by focusing a CO2 laser beam having a diameter of 30 to 40 μm onto a fiber, such fiber being fixed and weighted on either ends. The variations of transmission spectrum and polarization dependent (PDL) loss of the CO2 laser-grooved LPFGs with different fabrication parameters as functions of applied as functions of applied tensile stain are demonstrated and evaluated.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.