Ceramics for High Power Lasers
Final rept. 15 May 2010-15 May 2013
STANFORD UNIV CA EDWARD L GINZTON LAB OF PHYSICS
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Transparent ceramic gain-media can lead, when properly engineered, to significant improvements in solid-state laser performance. Among the anticipated benefits of such material-based lasers are high-average power outputs with higher efficiencies, improved pulse-energy storage and outputs, higher ultrafast-laser performance, and phased-array operation of guided-wave laser systems. In this research program we focused on the application, design and testing of engineered laser ceramics. We worked on 1 the study of bulk defects in YAG ceramics 2 a efforts to fabricate bulk transparent ceramics of YAG with improved optical quality and 3 the design and fabrication of waveguide structures based on theoretical predictions of laser host performance and composite laser design. The dual focus on correlating processing parameters with both performance and optical losses was taken to achieve high quality ceramics along with a fundamental understanding about these materials at all levels of manufacturing and use. In the final two years, we undertook the study of technologies to produce high power, two-micron fiber lasers because of their eye-safe characteristics and importance to military applications.
- Lasers and Masers
- Ceramics, Refractories and Glass