Femtosecond direct-write waveguide fabrication in optical materials

Arnaud Zoubir, Martin C. Richardson, Clara Rivero, Cedric Lopez, Kathleen A. Richardson, Nicolas Ho, Real Vallee, Isamu Miyamoto, Andreas Ostendorf, Koji Sugioka, Henry Helvajian
2003 Fourth International Symposium on Laser Precision Microfabrication  
We report the characterization of waveguiding devices fabricated in optical materials using a femtosecond pulse train from a Ti:Sapphire laser at a 25 MHz repetition rate. Both interferometry and micro-thermal analysis have been used as diagnostics to evaluate optical and structural changes within the glass matrix. A free-electron model is developed to explain the refractive index change.
doi:10.1117/12.540876 fatcat:gc7wv67a2repnfvxcvnqvrxyui