论文信息 - Amplitude mask patterned on an excimer laser mirror for high intensity writing of long period fibre gratings

Amplitude mask patterned on an excimer laser mirror for high intensity writing of long period fibre gratings

Masks have been produced for long period fibre grating fabrication from commercial dielectric laser mirrors. The masks, which were produced by direct patterning of a photoresist using an argon laser, can withstand in excess of 200 MJ/cm/sup 2/ per 15 ns pulse of 248 nm laser light. The use of these masks decreased exposure times by 90%, and nearly doubled the attenuation (dB) of a long period grating produced by a given UV fluence compared to chrome-on-silica masks.

Heather Patrick | E. J. Friebele | C. G. Askins | R. W. McElhanon

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