Characteristics of the S/N ratio of the beat note obtained from the frequency-mixing experiments between a CO2 and an H2O laser |
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| Authors: | T Kurosawa A Morinaga T Sakurai K Tanaka |
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| Institution: | (1) National Research Laboratory of Metrology, 1-4, 1-Chome, Umezono, Sakura-mura, Niihari-gun, 305 Ibaraki, Japan;(2) Department of Applied Physics, Faculty of Engineering, Hokkaido University, 060 Sapporo, Japan |
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| Abstract: | The S/N ratio of the beat note obtained from the frequency mixing between a 32 THz CO2 laser, a 10.7 THz H2O laser and a 22 GHz klystron is measured as a function of incident power of both lasers and the klystron on the W-Ni point contact diode. A maximum S/N ratio of 36 dB is obtained. It is found that the S/N ratio arises from the product of the contributions due to the incident power and the fifth coefficient of the current-voltage characteristic of the W-Ni diode. These characteristics are discussed qualitatively. |
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| Keywords: | 62 65 42 80 |
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