Characteristics of the S/N ratio of the beat note obtained from the frequency-mixing experiments between a CO2 and an H2O laser
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.
- Publication:
-
Applied Physics B Photophysics Laser Chemistry
- Pub Date:
- June 1984
- Bibcode:
- 1984ApPPL..34...49K
- Keywords:
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- Beat Frequencies;
- Carbon Dioxide Lasers;
- Klystrons;
- Signal Mixing;
- Signal To Noise Ratios;
- Water Masers;
- Nonlinear Optics;
- Optical Heterodyning;
- Spectrum Analysis;
- Volt-Ampere Characteristics;
- Lasers and Masers