Photosensitivity of gallium-doped silica core fiber to 193 nm ArF excimer laser

作者：Gunawardena Dinusha S; Mat Sharif Khairul A; Tamchek Nizam; Lai Man Hong; Omar Nasr Y M; Emami Siamak D; Muhamad Yasin Shahrin Z; Zulkifli Mohd I; Yusoff Zulfadzli; Abdul Rashid Hairul A; Lim Kok Sing^*; Ahmad Harith

来源：Applied Optics, 2015, 54(17): 5508-5512.

DOI：10.1364/AO.54.005508

Grating inscription in a Ga-doped silica core fiber (similar to 5 wt. % Ga) has been demonstrated using ArF (193 nm) and KrF (248 nm) excimer lasers. In a comparative study with germanosilicate fiber with similar Ge concentration, a Ga-doped silica core fiber shows greater photosensitivity to an ArF excimer laser due to the higher absorbance in the region of 190-195 nm. In addition, the photosensitivity of a Ga-doped silica core fiber has been greatly enhanced with hydrogenation. Ga-doped fibers are potential photosensitive fibers for fiber Bragg grating production with an ArF excimer laser.

• 出版日期2015-6-10