Lineselective CO2-lasers with variable line-spacing and variable reflectivity silicon gratings

Roland Schulz; Martin Collischon; Hans Brand; Lorenz-Peter Schmidt

doi:10.1117/12.611037

23 March 2005 Lineselective CO₂-lasers with variable line-spacing and variable reflectivity silicon gratings

Roland Schulz, Martin Collischon, Hans Brand, Lorenz-Peter Schmidt

Proceedings Volume 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers; (2005) https://doi.org/10.1117/12.611037
Event: XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, 2004, Prague, Czech Republic

Abstract

A lineselective CO₂-laser with an unstable resonator is presented. The CO₂-laser is realised with an rf-excited slab geometry to get a compact design with high output power. As lineselective element a grating in Littrow mount is used. The gratings are manufactured by anisotropic etching of silicon. The grating has a variable duty cycle to obtain a variable reflectivity. Furthermore, gratings are presented that have focusing propteries by a variation of the grating periodicity.

Citation Download Citation

Roland Schulz, Martin Collischon, Hans Brand, and Lorenz-Peter Schmidt "Lineselective CO₂-lasers with variable line-spacing and variable reflectivity silicon gratings", Proc. SPIE 5777, XV International Symposium on Gas Flow, Chemical Lasers, and High-Power Lasers, (23 March 2005); https://doi.org/10.1117/12.611037

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