Thermal stability of excimer laser-written fiber Bragg gratings as a function of fiber/phase mask distance

Lingyun Xiong; Jacques Albert

doi:10.1117/12.779102

26 October 2007 Thermal stability of excimer laser-written fiber Bragg gratings as a function of fiber/phase mask distance

Lingyun Xiong, Jacques Albert

Author Affiliations +

Proceedings Volume 6796, Photonics North 2007; 67961B (2007) https://doi.org/10.1117/12.779102
Event: Photonics North 2007, 2007, Ottawa, Canada

Abstract

Previous work has demonstrated that the thermal stability of Fiber Bragg gratings can be influenced by pre- or postirradiation of the grating with uniform (non-modulated) light, thereby changing the grating contrast (or modulation index). We present new experimental results about the thermal stability of gratings where the contrast is determined by the fiber-phase mask distance during the irradiation with excimer laser light. Due to the low spatial coherence of the excimer laser light, the fringe contrast behind the mask drops from near 100% to less than 10% over 1 mm.

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Lingyun Xiong and Jacques Albert "Thermal stability of excimer laser-written fiber Bragg gratings as a function of fiber/phase mask distance", Proc. SPIE 6796, Photonics North 2007, 67961B (26 October 2007); https://doi.org/10.1117/12.779102

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