Femtosecond-irradiation-induced refractive-index changes and channel waveguiding in bulk Ti3+: Sapphire
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We have employed femtosecond laser writing in order to induce refractive-index changes and waveguides in Ti3+-doped sapphire. Doping the sapphire crystal with an appropriate ion significantly reduces the threshold for creating structural changes, thus enab ...
Femtosecond writing of refractive-index changes in sapphire is demonstrated by doping the crystal with an appropriate ion (here: Ti3+) that reduces the threshold of the process. Passive and active buried channel waveguiding is demonstrated. ...
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