Electro-optic modulation method, electro-optic modulation equipment and application and regenerative amplifier thereof

Abstract

The invention discloses an electro-optic modulation method. The method comprises the following steps: emitting laser to pass a slide and an electro-optic crystal in order, wherein the electro-optic crystal comprises a first surface and a second surface opposite to each other; performing forward pressurizing on a first surface of the electro-optic crystal, and performing reverse pressurizing on a second surface of the electro-optic crystal, wherein two steps of performing forward pressurizing on the first surface and performing reverse pressurizing on the second surface are alternatively performed. Through the above electro-optic modulation method disclosed by the invention, the positive pressurizing and reverse pressurizing are alternatively performed on two opposite surfaces of the electro-optic crystal, and rotation directions of polarization states of the laser passing the electro-optic crystal are alternatively changed, thereby changing the laser output direction. A high pressure value loaded on the electro-optic crystal can be effectively reduced, or under the same high pressure and crystal length, greater crystal light passing aperture can be allowed, thereby reducing the manufacturing difficulty of the electro-optic switch driving device. Furthermore, the invention further provides electro-optic modulation equipment and application thereof, and a regenerative amplifier.

Description

technical field [0001] The invention relates to the technical field of laser devices, in particular to an electro-optic modulation method, an electro-optic modulation device and its application, and a regenerative amplifier. Background technique [0002] In pulsed lasers, due to the fast response speed of electro-optic modulation, pulses with a narrow time width can be generated, and as switches and selection devices, high repetition frequency pulse selection can be performed, so electro-optic modulation is used in Q-switched lasers, regenerative amplifiers, and cavities It is widely used in external switch control. However, because electro-optic crystals require a very high quarter-wavelength or half-wavelength modulation voltage, especially for laterally pressurized Pockels cells, the high voltage value is proportional to the distance between the two pressurized surfaces and proportional to the crystal length. inverse ratio. However, it is very difficult for existing dri...

AI Technical Summary

Problems solved by technology

[0007] In order to overcome the problem that the modulation voltage of the existing electro-optical switch is too high, an electro-optic modulation method, an electro-optic modulation device and its application, and a regenerative amplifier that can reduce the operating voltage and are simple to operate are provided

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