Fiber Bragg gratings inscribed using 800nm femtosecond laser and a phase mask in single- and multi-core mid-IR glass fibers.
Opt Express
; 17(9): 7540-8, 2009 Apr 27.
Article
en En
| MEDLINE
| ID: mdl-19399132
ABSTRACT
For the first time, Fiber Bragg grating (FBG) structures have been inscribed in single-core passive germanate and three-core passive and active tellurite glass fibers using 800 nm femtosecond (fs) laser and phase mask technique. With fs peak power intensity in the order of 10(11)W/cm(2), the FBG spectra with 2nd and 3rd order resonances at 1540 and 1033 nm in the germanate glass fiber and 2nd order resonances at approximately 1694 and approximately 1677 nm with strengths up to 14 dB in all three cores in the tellurite fiber were observed. Thermal responsivities of the FBGs made in these mid-IR glass fibers were characterized, showing average temperature responsivity approximately 20 pm/ degrees C. Strain responsivities of the FBGs in germanate glass fiber were measured to be 1.219 pm/microepsilon.
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Colección:
01-internacional
Base de datos:
MEDLINE
Asunto principal:
Refractometría
/
Tecnología de Fibra Óptica
/
Rayos Láser
/
Materiales Manufacturados
Tipo de estudio:
Clinical_trials
/
Diagnostic_studies
Idioma:
En
Revista:
Opt Express
Asunto de la revista:
OFTALMOLOGIA
Año:
2009
Tipo del documento:
Article
País de afiliación:
Reino Unido