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Emitting tunable liquid crystal dye laser

A technology of dye lasers and liquid crystals, applied in lasers, laser components, phonon exciters, etc., can solve the problems of long distances between applications, and achieve the effect of increasing emission intensity

Inactive Publication Date: 2012-07-25
HARBIN ENG UNIV
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  • Emitting tunable liquid crystal dye laser
  • Emitting tunable liquid crystal dye laser

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Embodiment Construction

[0011] Combine below figure 1 The present invention is described in detail:

[0012] Among them (1) is the pumping light, (2) is the emitted light, (3) is the driving circuit, (4) is the silicon dioxide, titanium dioxide multilayer film (5) is the indium tin oxide (ITO) transparent conductive electrode, (6) is a polyimide alignment film, (7) is a glass substrate, (8) is a liquid crystal layer with laser dyes, and (9) is a pure liquid crystal layer.

[0013] (1) Select four transparent glass substrates with a thickness of 11 mm and an area of ​​1 cm × 1 cm. The overall flatness is better than 1 / 10 of the wavelength. Making indium tin oxide (ITO) conductive electrodes;

[0014] (2) Using a coating machine, on the ITO side of the four substrates, where both sides have ITO substrates on one side, silicon dioxide and titanium dioxide films with a thickness of 111 nanometers and 69 nanometers are alternately plated respectively. Plating 8 pairs;

[0015] (3) The polyimide (PI) f...

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Abstract

The invention relates to a tunable laser, in particular to a novel high-intensity emitting tunable liquid crystal dye laser, which comprises four glass base plates and three liquid crystal layers, wherein three liquid crystal layers are clamped among the base plates, indium tin oxide electrode films are plated at the inner sides of the two inner glass base plates, first orientation films are printed on the indium tin oxide electrode films, pure liquid crystal layers are clamped between the orientation films, indium tin oxide electrode films are plated on the outer sides of the two inner glassbase plates and the inner sides of the two outer glass base plates, silicon dioxide and titanium dioxide multilayer films are respectively and alternately plated on the indium tin oxide electrode films, second orientation films are printed on the multilayer films, and liquid crystal layers containing laser dye are clamped between the inner glass base plates and the outer glass base plates. The phase of emergent light is turned through liquid crystals so that the emitting light forms the interference at the receiving part to reach the goal of enhancing the emitting intensity.

Description

technical field [0001] The invention relates to a tunable laser, in particular to a novel tunable liquid crystal dye laser with high-intensity emission. Background technique [0002] Tunable lasers are widely used in the fields of optical communication, optical storage, sensing technology and biomedical engineering. The tunable lasers used and being researched can be roughly divided into two categories: fiber tunable lasers and semiconductor tunable lasers. The main advantages of fiber tunable lasers are high coupling efficiency, easy formation of high power density in the fiber, and low threshold. However, many devices are involved and the structure is relatively complex. At the same time, the emitted laser is a discontinuous spectrum. Semiconductor tunable lasers are an important light source for optical communication systems today. They can be divided into four categories. The main features are: the distributed feedback type adjusts the wavelength by changing the temper...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): H01S3/20H01S3/10
Inventor 刘永军孙伟民刘晓颀
Owner HARBIN ENG UNIV
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