Analysis of the soft X-ray laser oscillator-amplifier configuration based on self-filtering unstable resonator

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• 作者：G. Ghani Moghadam ; A. H. Farahbod
• 关键词：Self ; filtering unstable resonator (SFUR) ; Amplified spontaneous emission (ASE) ; Soft X ; ray laser (SXRL) ; Oscillator ; amplifier configuration
• 刊名：Optical and Quantum Electronics
• 出版年：2017
• 出版时间：February 2017
• 年：2017
• 卷：49
• 期：2
• 全文大小：
• 刊物主题：Optics, Lasers, Photonics, Optical Devices; Electrical Engineering; Characterization and Evaluation of Materials; Computer Communication Networks;
• 出版者：Springer US
• ISSN：1572-817X
• 卷排序：49

文摘

In this paper, the oscillator-amplifier (osc-amp) configuration based on self-filtering unstable resonator (SFUR) as oscillator has been proposed and theoretically analyzed for soft X-ray lasers. The configuration is suitable for soft X-ray lasers because their active medium has a short-gain-lifetime. The nearly gaussian profile and low beam divergence of SFUR makes it superior than the amplified spontaneous emission mode soft X-ray lasers. However, osc-amp is proposed to compensate the low output energy of SFUR and preserves the high beam quality and coherency. Our calculations indicate that the increasing of laser energy by a factor of 100 is possible with a single stage amplifier where leads to a high beam quality micro-joules soft X-ray laser.