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Laser Q-switching and tuning device

A technology for tuning devices and lasers, which is applied to lasers, laser components, and lasers using scattering effects, etc., and can solve problems such as not having tunable laser tuning

Inactive Publication Date: 2004-01-21
ELECTRONICS ENG COLLEGE PLA
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  • Abstract
  • Description
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  • Application Information

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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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Embodiment Construction

[0026] exist figure 1 In the shown perspective view, a single lithium niobate crystal 2 has optically transparent surfaces 11 and 14, and four 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: i 2 = i 7 = arcsin ( sin ( ...

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Abstract

The present invention relates to laser Q-switching and tuning device and is especially one laser Q-switching and tuning device comprising one single electro-optical crystal. The electro-optical crystal has two clear areas, two reflecting areas and two electrode areas. Both the clear areas and the reflecting areas have normal line coplanar with the light axis of the electro-optical crystal, the plane is perpendicular to one main axis outside the crystal optical axis, and the two electrode areas are parallel to the plane. Both the clear areas and the reflecting areas have specific acute angle to the light axis of the electro-optical crystal. According to the chromatic dispersion characteristic of the electro-optical crystal, light beams of the same incident angle but different wavelengths will have different propagation directions after passing through the crystal, and this is utilized intelligent tuning laser, controlling the output wavelength of laser and producing giant pulse laser 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 Applications(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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