Optical cavity ring-down adaptive optical active transverse mode matching method
A technology of adaptive optics and optical cavity ring-down, which is applied in the field of optical cavity ring-down, can solve the problems of decreased measurement accuracy and measurement stability, and achieve the effects of improving the matching accuracy of transverse modes, reducing errors, and increasing the measurement aperture
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[0018] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments.
[0019] like figure 1 As shown, an optical cavity ring-down adaptive optical active transverse mode matching method of the present invention, the specific implementation steps are as follows:
[0020] Step (1), establishing an optical cavity ring-down measurement device, which consists of four parts: a laser light source module, an active transverse mode matching module, a ring-down cavity module, and a signal acquisition and processing module. Among them, the signal acquisition and processing module includes a high-speed photodetector and a far-field sensor, which respectively record the ring-down signal of the optical cavity and the shape of the transmitted spot of the ring-down cavity; the laser light source module includes a laser light source and an indicator light source, which are respectively controlled by The beam splitter M4 and the m...
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