Amplification of narrow line color center laser oscillation

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• 作者：Amelia G. VanEngen Spivey ; Vladimir V. Fedorov ; Michael M. McKerns ; Christopher M. Lawson and Sergey B. Mirov
• 关键词：Color center laser ; Optics Communications
• 出版年：2005
• 期刊代码：50_00304018
• 类别：ph
• 出版时间：2005
• 卷：254
• 期：4-6
• 页码：290-298
• 文件大小：186 K

摘要

A nanosecond pulsed color center master oscillator and power amplifier scheme is presented. Maximum amplified pulse energies of 15 mJ near 930 nm are achieved, with an amplification gain of more than 35× under less than 50 mJ of absorbed pump energy. Furthermore, flexibility in the amplifier design should allow for additional improvements through steps such as saturating the passive losses in the crystal. We also discuss the optimization of color center crystal preparation, which has facilitated the growth of color center crystals with large absorption coefficients (from 2 to 8 cm⁻¹ at the maximum near 600 nm). Passive losses in these crystals are estimated to be less than 0.08 cm⁻¹ at the oscillation wavelength and are attributed to the presence of “-like” color centers.