Impact of CO2 Laser Pretreatment on the Thermal Endurance of Bragg Gratings

다국어 초록 (Multilingual Abstract)

The thermal endurance of fiber Bragg gratings (FBGs), written with the aid of 193-nm ArF excimerlaser irradiation on H2-loaded Ge/B codoped silica fiber, and pretreated with a CO2 laser and a subsequentslow cooling process, is investigated. These treated gratings show relatively less degradation of gratingstrength during the thermal annealing procedure. The thermal decay characteristics of treated and untreatedfiber, recorded over a time period of 9 hours, have been compared. The effect on the Bragg transmissiondepth (BTD) and the center-wavelength shift, as well as the growth of refractive-index change during thegrating inscription process for both treated and untreated fiber, are analyzed.

참고문헌 (Reference)

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