Impact of hydrogen-induced effects on optical fiber Bragg gratings

Autor:	Roberth W. A. Llerena, Alexis Mendez, Arthur M. B. Braga, John Canning, Kevin Cook, Adriana Lucia Cerri Triques, Cicero Martelli, Victor L. Takahashi
Rok vydání:	2011
Předmět:	Materials science Optical fiber genetic structures Hydrogen business.industry Doping chemistry.chemical_element Germanium Grating Long-period fiber grating law.invention chemistry Fiber Bragg grating law Optoelectronics business Refractive index
Zdroj:	SPIE Proceedings.
ISSN:	0277-786X
DOI:	10.1117/12.886069
Popis:	The effects induced by low and high pressure ingression of hydrogen on UV-written germanium doped silica optical fiber Bragg gratings-at room and high temperature-are studied and discussed. Results show that at elevated temperatures (>150 °C), an immediate and permanent shift of the peak grating reflectivity is induced and proportional to the hydrogen concentration (10 pm/AtmH2), whilst at room temperature most of the grating spectrum changes are transient and mostly reversible.
Databáze:	OpenAIRE
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