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Acousto-optic adjustable light filter with broadband

An optical filter, acousto-optic technology, applied in the direction of instruments, optics, nonlinear optics, etc., can solve the problems of easy damage to the first transducer, large discrete inductance parameters, and difficult matching work, so as to improve the resistance The ability of vibration shock and temperature change, the signal transmission loss is small, and the effect of easy transmission

Active Publication Date: 2011-10-12
CHINA ELECTRONICS TECH GRP NO 26 RES INST
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  • Abstract
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Problems solved by technology

Because it is very easy to damage the first transducer when making the second transducer, the product yield is very low
[0004] In order to improve the working bandwidth of the transducer, the commonly used matching network is a multi-level matching network composed of multiple hand-wound inductances in series. Because the hand-wound inductance parameters are discrete and difficult to control, the matching work is difficult. Big

Method used

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  • Acousto-optic adjustable light filter with broadband
  • Acousto-optic adjustable light filter with broadband
  • Acousto-optic adjustable light filter with broadband

Examples

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Embodiment Construction

[0022] The present invention will be described in further detail below in conjunction with specific embodiments.

[0023] Such as figure 1 and figure 2 As shown, the broadband acousto-optic tunable optical filter of the present invention includes a base 1, and a cuboid acousto-optic medium 2 is pasted on the upper part of the base 1 through silicon rubber 9, and is installed on the same side of the acousto-optic medium 2 through a bonding layer 8 At least two transducers. The following structures are described with two transducers, and more than two structures are similar. Among them, a first high-frequency socket 3-1 is also installed on the base 1, and a first matching network 5-1 is installed in the base 1. The first high-frequency socket 3-1 is externally connected to a high-frequency input signal and internally connected to the first matching network. The input end of the network 5-1, the output end of the first matching network 5-1 is connected to the first transitio...

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Abstract

The invention relates to an acousto-optic adjustable light filter with broadband, which comprises an acousto-optic medium, wherein the acousto-optic medium is installed on a base; at least two transducers are installed on the surface of the acousto-optic medium; the surface of each transducer is plated with a surface electrode; each surface electrode is respectively connected with a matching network; the matching network is connected with a high-frequency socket; all the transducers are installed on the same surface of the acousto-optic medium through a linking layer; and the thicknesses of the transducers with each surface electrode are different. Because the two transducers are installed on the same side of the acousto-optic medium, the problem that the clamp is easy to damage the transducer which is installed in the front when the transducers are installed on the two surfaces of the traditional acousto-optic medium, thereby enhancing the finished product rate of products; and the transducers with different thicknesses drive the radio frequency signals with different frequencies, thereby obtaining the diffraction light with different wavelengths.

Description

technical field [0001] The invention relates to an acousto-optic device, in particular to a wide-band acousto-optic tunable filter used in a laser system and suitable for spectral imaging or spectral analysis, belonging to the technical field of acousto-optic instruments. Background technique [0002] Acousto-optic tunable filters for spectral imaging or spectral analysis are mainly composed of acousto-optic media, transducers, surface electrodes, printed boards, matching networks and high-frequency sockets. The high-frequency sockets are connected to the matching network through leads. The surface electrodes are arranged on the surface of the transducer, the matching network is connected to the surface electrodes on the transducer through a printed board, and the acousto-optic medium is connected to the transducer through a bonding layer. The radio frequency signal is transmitted to the electrode of the transducer table through the high frequency socket, matching network,...

Claims

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Application Information

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IPC IPC(8): G02F1/11
Inventor 张泽红李忠继刘玲杜明熙夏卫东秦廷辉何晓亮刘伟王智林吴畏雷波
Owner CHINA ELECTRONICS TECH GRP NO 26 RES INST
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