Photosensitivity at 1550 nm and Bragg grating inscription in As2Se3 microwires

Details Photosensitivity at 1550 nm and Bragg grating inscription in As2Se3 microwires Photosensitivity at 1550 nm and Bragg grating inscription in As2Se3 microwires

2011-06-03

arxiv.org/abs/1106.0587v1

Physics

Optics

Scientific paper

We report the first experimental observation of photosensitivity in As2Se3 glass at a wavelength of 1550 nm. We utilize this photosensitivity to induce the first Bragg gratings using a laser source at a wavelength of 1550 nm. We quantify the photosensitivity thresholds related to exposition intensity and exposition time. Finally, we demonstrate that As2Se3 Bragg gratings are widely tunable in wavelength as the microwire can withstand an applied longitudinal strain of 4 \times 104 \mu{\epsilon}.

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