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Laser Q-switching and tuning device

A technology for tuning devices and lasers, applied in lasers, laser parts, and lasers using scattering effects, etc., can solve problems such as not having tunable laser tuning

Inactive Publication Date: 2005-05-04
ELECTRONICS ENG COLLEGE PLA
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Problems solved by technology

"Laser Technology" (edited by Lan Xinju et al., the first edition of Science Press in August 2000), pages 79 to 81, introduces a double 45° electro-optic Q-switching device made of a single lithium niobate crystal. A known method, but this Q-switching device can only be used for Q-switching of lasers, and does not have the function of tuning tunable lasers

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  • Laser Q-switching and tuning device

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Embodiment Construction

[0028] exist figure 1 In the shown perspective view, a single lithium niobate crystal 2 has optically transparent surfaces 11 and 14, and two optically reflective surfaces 12 and 13, and the normal lines of these four surfaces are all in the same plane, and the plane It is perpendicular to a certain main axis x other than the optical axis 10 of the crystal 2, and there is an acute angle i between the light-transmitting surface 11 and the optical axis 10 of the crystal 2 2 , there is a sharp angle i between the light-passing surface 14 and the optical axis 10 7 , there is an acute angle i between the reflective surface 12 and the optical axis 10 3 , there is an acute angle i between the reflective surface 13 and the optical axis 10 6 , they satisfy the following relationship:

[0029] i 2 = i 7 = arcsin ( sin ...

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Abstract

The invention relates to a laser Q-switching and tuning device, in particular to a laser Q-switching and tuning device composed of a single electro-optical crystal. two electrode surfaces. The normals of the light-transmitting surface and the reflecting surface are in the same plane with the optical axis of the electro-optic crystal, and the plane is perpendicular to a major axis other than the optical axis of the crystal, and the two electrode surfaces are parallel to the plane. The two light-transmitting surfaces and the two reflective surfaces have specific acute angles with the optical axis of the crystal. In this way, based on the dispersion characteristics of the electro-optic crystal, the light of different wavelengths incident at the same angle has different propagation directions after passing through the above-mentioned crystal. Using this feature to realize the tuning of the laser, the output wavelength of the tunable laser can be controlled, and at the same time it has The effect of making the laser produce giant pulse output.

Description

technical field [0001] The invention relates to a Q-switching and tuning device for a laser, which belongs to a device for Q-switching and tuning a laser characterized by the optical properties of an electro-optic crystal material. Background technique [0002] In order to be able to generate laser giant pulse output with different wavelengths, tunable lasers need to be tuned while Q-switching. [0003] The use of electro-optic Q-switches is currently known as an effective method for generating laser giant pulses. The electro-optic Q-switches can quickly change their on and off states by changing the external control voltage, so that the laser cavity is in a state of high Q value and low Q value. , so that the Q value of the laser cavity can be controlled and changed rapidly is necessary to generate the laser giant pulse output. [0004] By inserting the dispersive device into the cavity of the tunable laser, the oscillating light of different wavelengths in the cavity can ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): G02F1/03H01S3/115H01S3/127H01S3/30
Inventor 孙晓泉聂劲松童忠诚邹继伟孙晓军余大斌
Owner ELECTRONICS ENG COLLEGE PLA
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