A cavity length locking method and system for a dual-resonance optical parametric oscillator
An optical parametric oscillator and double resonance technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problem of difficulty in locking the cavity length of double resonance optical parametric oscillators, improve locking stability, and realize laser Output, Effects of Structure Rules
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[0051] figure 1 The schematic diagram of the cavity length locking system of the ultrashort pulse double-resonant variable oscillator provided in Example 1. The cavity length locking system including a double resonant parameter oscillator and a wavelength selection element comprises: a diffraction grating, a photodetector, a signal processing circuit, and a cavity long controller. Wherein, the wavelength selection element is a diffraction grating as an example.
[0052] Among them, the inner laser laser is coupled out by outputting the coupling mirror, and the portion output laser is separated by the silicon window sheet as a feedback reference light for locking the cavity. The coupled laser is passed through a diffraction grating, and the light power of the predetermined wavelength after the light detector is received and converted into an electrical signal. When the converted electrical signal is sent to the signal processing system, after the data processing, the output electr...
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