Suppression of FM-to-AM Conversion in Broadband Third-Harmonic Generation of Nd:Glass Laser
Department of Optical Science and Engineering, Laboratory for Advanced Materials, Fudan University, Shanghai 200433
Received Date:
June 19, 2010
Published Date:
March 31, 2011
Abstract
Frequency modulation to amplitude modulation (FM-to-AM) conversion is important for controlling temporal shapes of high-power Nd:glass lasers in the application of fusion ignition. To suppress this FM-to-AM conversion effect in the process of broadband third-harmonic generation of Nd:glass laser, we report an efficient frequency-tripling scheme based on mixing narrowband and broadband pulses. Numerical results show that the FM-to-AM conversion in frequency conversion process can be suppressed effectively. For a required third-harmonic bandwidth of 1 THz, the defined relative modulation α in pulse intensity is as large as 180% in the conventional baseline design, while it will be reduced to only about 20% by using our proposed scheme.
Article Text
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About This Article
Cite this article:
CHEN Ying, QIAN Lie-Jia, ZHU He-Yuan, FAN Dian-Yuan. Suppression of FM-to-AM Conversion in Broadband Third-Harmonic Generation of Nd:Glass Laser[J].
Chin. Phys. Lett. , 2011, 28(4): 044209.
DOI: 10.1088/0256-307X/28/4/044209
CHEN Ying, QIAN Lie-Jia, ZHU He-Yuan, FAN Dian-Yuan. Suppression of FM-to-AM Conversion in Broadband Third-Harmonic Generation of Nd:Glass Laser[J]. Chin. Phys. Lett. , 2011, 28(4): 044209. DOI: 10.1088/0256-307X/28/4/044209
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