5 October 2012 Ceramic windows and gain media for high-energy lasers
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Abstract. Recent progress in high-quality transparent ceramic window materials (MgAl2O4 spinel and β -SiC) and high-power solid-state laser materials (Yb3+ : Y2O3 , Yb3+ : Lu2O3, and Ho3+ : Lu2O3 is reported. Spinel ceramic demonstrates a record low-absorption loss of 6 ppm/cm at 1.06 μm. The capability of fabricating various shapes and sizes of spinel ceramics is also demonstrated. We also report optical transparency from a β -SiC ceramic fabricated by field assisted sintering technology (FAST). We report lasing in hot-pressed Yb3+ : Y2O3 and Yb3+ : Lu2O3 ceramic made from coprecipitated powder. The highest ever reported output power and efficiency from 10% doped Yb3+ : Lu2O3 ceramic is also presented. Lasing oscillation from hot pressed composite of five-layered Yb3+ : Y2O3 ceramic is also demonstrated for the first time.
© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)
Woohong Kim, Woohong Kim, Guillermo R. Villalobos, Guillermo R. Villalobos, Colin Baker, Colin Baker, Jesse A. Frantz, Jesse A. Frantz, Brandon Shaw, Brandon Shaw, Shyam S. Bayya, Shyam S. Bayya, Bryan Sadowski, Bryan Sadowski, Ishwar D. Aggarwal, Ishwar D. Aggarwal, Michael Hunt, Michael Hunt, Jasbinder Sanghera, Jasbinder Sanghera, } "Ceramic windows and gain media for high-energy lasers," Optical Engineering 52(2), 021003 (5 October 2012). https://doi.org/10.1117/1.OE.52.2.021003 . Submission:

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