Twisted tilted fiber Bragg gratings: new structures and polarization properties
Artykuł w czasopiśmie
MNiSW
45
Lista A
| Status: | |
| Autorzy: | Kisała Piotr, Mroczka Janusz, Cięszczyk Sławomir, Skorupski Krzysztof, Panas Patryk |
| Dyscypliny: | |
| Aby zobaczyć szczegóły należy się zalogować. | |
| Rok wydania: | 2018 |
| Wersja dokumentu: | Drukowana | Elektroniczna |
| Język: | angielski |
| Numer czasopisma: | 18 |
| Wolumen/Tom: | 43 |
| Strony: | 4445 - 4448 |
| Impact Factor: | 3,866 |
| Web of Science® Times Cited: | 16 |
| Scopus® Cytowania: | 18 |
| Bazy: | Web of Science | Scopus |
| Efekt badań statutowych | NIE |
| Materiał konferencyjny: | NIE |
| Publikacja OA: | NIE |
| Abstrakty: | angielski |
| In this Letter, it has been shown that the twisting of TFBGs (tilted fiber Bragg gratings) decreases their sensitivity to the polarization of the input light. It has been proved by a theoretical simulation study that twisting the TFBG by 180 degrees eliminates the sensitivity of the grating to input light polarization changes. We have experimentally proved that our structure produced has an 18 times lower coefficient of variation of transmission for polarization changes than the untwisted TFBG. This Letter also presents a new method for manufacturing the twisted tilted fiber Bragg grating (TTFBG). We have demonstrated the possibility of writing the TTFBG structure twisted by 90 degrees on a fiber with a length of 10 mm. The structure has been further twisted in the other direction by 90 degrees, which is consistent with a structure twisted by 180 degrees. The properties of both structures were determined. Due to the fiber's strength, the TTFBG twisted by 180 degrees has to be 2 cm long. An advantage of the proposed method of producing the TTFBG is that there is a twist of the structure itself after fabrication. This creates new possibilities of using the structure in many applications. This type of grating can be used to reduce the sensitivity to polarization in various sensing applications, in particular, to measure the refractive index. In addition, a 180 degrees twisted TTFBG has properties of direction discrimination in twist sensing applications. |
