FM-to-AM conversion measurement for high power nanosecond lasers

8th International Conference on Inertial Fusion Sciences and Applications

Penninckx, Denis^1

CEA CESTA, 15 avenue des Sablières, Le-Barp-Cedex

33116, France^1

关键词: FM to AM conversion;    High power;    Low-frequency;    Nanosecond lasers;    Spectral content;    Spectral domains;    Time domain;   

Others  :  https://iopscience.iop.org/article/10.1088/1742-6596/688/1/012085/pdf
DOI  :  10.1088/1742-6596/688/1/012085

来源: IOP

【 摘 要 】

Through numerical simulations we show that the spectral content of amplitude modulations induced by a transfer function converting frequency modulations required for high-power lasers may be very broad. Hence, measurement of FM-to-AM conversion should be first done in the spectral domain to remove unwanted transfer functions at low frequency scale and then in the time domain to obtain an accurate value.