Collection Of theses on high power laser and plasma physics, 2016, 14 (1): 0904001, Published Online: Mar. 22, 2017  

Measurement Technique of Signal Noise Ratio Based on Resonator Oscillation for Femtosecond Single-Shot Pulse

Author Affiliations
1 中国科学院上海光学精密机械研究所高功率激光物理联合实验室, 上海 201800
2 中国科学院大学, 北京 100049
3 上海科技大学物质科学与技术学院, 上海 201210
Abstract
A measurement technique of signal noise ratio based on resonator oscillation for single-shot pulse is proposed. Through precise setting of the resonant cavity length, optical path difference between two resonant cavities, and the reflectivity or transmittance of the high reflectivity mirror, the three key indicators of high dynamic range, large time window and high temporal resolution are easily realized. Meanwhile, high fidelity of measurement signal is guaranteed using full aperture beam measurement. Theoretically, various kinds of function and stability of the resonator structure are analyzed. Influence of errors introduced by dispersion on results are also analyzed. High reflectivity mirrors with wedge-shape are introduced in the resonator cavity to avoid the noise of minor pulses. In theory, the measurement of high signal noise ratio (1010) ,even higher signal noise ratio, and high temporal resolution of hundred femtosecond can be realized in this construction.

Shi Shuaixu, Yang Qingwei, Ouyang Xiaoping, Xia Suqiu, Zhu Jianqiang. Measurement Technique of Signal Noise Ratio Based on Resonator Oscillation for Femtosecond Single-Shot Pulse[J]. Collection Of theses on high power laser and plasma physics, 2016, 14(1): 0904001.

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