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High power all-solid-phase double resonance sum frequency blue light laser device

A laser device, all solid-state technology, applied in the field of lasers, can solve problems such as difficult adjustment, achieve high-power blue light output, and simple structure

Inactive Publication Date: 2005-07-27
INST OF PHYSICS - CHINESE ACAD OF SCI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0004] At present, there is a laser that outputs lasers of multiple wavelengths at the same time, for example: Chinese patent application number: 01136095.X, the name of the invention is: "High-power all-solid-state red, yellow, and blue laser device", it is between two resonant cavity mirrors Place nonlinear optical crystals, beam splitters and laser crystals in sequence, and rely on the beam splitter to vibrate one or two spectral lines. Due to the splitting effect of the beam splitter, the optical path is not a straight line, which brings a lot of trouble to the adjustment. difficulty

Method used

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  • High power all-solid-phase double resonance sum frequency blue light laser device
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  • High power all-solid-phase double resonance sum frequency blue light laser device

Examples

Experimental program
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Effect test

Embodiment 1

[0035] Embodiment 1: according to figure 2 Create a dual-resonance sum-frequency blue laser device that outputs continuous wave blue light

[0036] This laser laser device comprises that semiconductor lasers are arranged sequentially on the optical path as the pump light source 10, with a plano-concave mirror, its plane is plated with an anti-reflection film of 808nm, and the concave surface is plated with an anti-reflection film of 808nm and high-reflection films of 1319nm, 660nm, and 440nm as the first A resonant cavity mirror 1; laser crystal Nd:YAG 2, frequency doubling crystal 4, and the second resonant cavity mirror 6 are selected as plano-concave mirrors, and its concave surface is plated with 1319nm, 660nm high-reflection film and 440nm anti-reflection film; and beam splitting prism 7 ; Also includes: a sum frequency crystal 5, which selects LBO crystal, and its cut angle is θ=90.0°, Φ=21.0°, placed between the frequency doubling crystal 4 and the second resonant cavity...

Embodiment 2

[0038] Example 2: Press image 3 Create a dual-resonance sum-frequency blue-light compound cavity laser device that outputs continuous wave blue light

[0039] The laser device includes sequentially placing LD semiconductor lasers on the optical path as the pump light source 10, using a plano-concave mirror, the antireflection coating of 808nm on the plane, and the antireflection coating of 808nm on the concave surface and high reflection coatings of 1319nm, 660nm, and 440nm as the first Resonant cavity mirror 1; laser crystal Nd:YAG2, a frequency doubling crystal 4 select LBO crystal, the cutting angle of BBO is θ=4.2°, Φ=0°, a concave surface is plated with 1319nm, 660nm high reflection film and 440nm anti-reflection The plano-concave mirror of the film is used as the cavity mirror 6 and the beam splitting prism 7, and is characterized in that: it also includes: a compound cavity mirror 8, and a sum frequency crystal 5 selects a periodically poled lithium niobate crystal PPL...

Embodiment 3

[0043] According to the optical path in Figure 4, a dual-resonance external cavity and high-frequency blue light laser device outputting quasi-continuous wave blue light was fabricated

[0044] This laser device comprises that semiconductor lasers are placed in sequence as the pump light source 10, with an anti-reflection film of 808nm and a high-reflection film of 1342nm, 671nm, and 447nm on the front face, and a laser crystal 2 with an anti-reflection film of 1342nm, 671nm, and 447nm on the rear end face. The front face is used as a resonant cavity mirror; the dispersion compensation element 3, the frequency doubling crystal 4, the sum frequency crystal 5, and the beam splitting prism 7 are characterized in that: a Q switch 9 is placed between the frequency doubling crystal 4 and the sum frequency crystal 5 Among them; the pump light source 10 is placed in front of the laser crystal 2 to pump from the end face, and the side close to the Q switch 9 is coated with 1342nm, 671nm...

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Abstract

The present invention relates to a full solid state double resonance and frequency blue light laser facility with large power ,including: pumping light source posit in turn in the light path, which is arranged in the front of a piece of resonant cavity mirror and pumps laser crystal from end surface, while the resonant cavity mirror being arranged to a laser resonator, and in resonant cavity created with the resonant cavity mirror , positing in turn laser crystal, frequency multiplication crystalloid, and positioning a dispersive shim element in the light path between the laser crystal and the frequency multiplication crystalloid in the laser resonator, a sum frequency crystalloid posit in the light path after the frequency multiplication crystalloid, a prismatic prism arranged according to Bour angle in the output light path of the resonant cavity mirror, and fixing the said optical elements on the optics utensil seat, while the optics utensil seat being fixed on optical table. The device applies double resonance to compose single-pass or bi-pass sum frequency light path, overcomes the drawback for the present technology that using quasi - three-level is difficult to film and radiate heat, and the structure thereof is simple, its power can reach several Watt to several tens of Watt, so as to realize highly active and uprated blue light output .

Description

technical field [0001] The invention relates to a laser, in particular to a high-power all-solid-state double-resonance sum-frequency blue laser device. Background technique [0002] The blue light usually produced by the triple-line method of aluminum ions mainly adopts the fluorescence oscillation at 946nm in the triple-line method of aluminum ions, and then doubles the frequency to generate blue light. Because the wavelengths of 946nm and 1064nm are close, coating (such as 946nm high reflection, 1064nm and 1319nm high transparency) is more difficult, and the emission cross section of the 1064nm spectral line is more than ten times that of the 946nm spectral line, and the onset of the 946nm spectral line is easily suppressed , so the traditional device puts forward very high requirements on the coating of the cavity mirror and crystal. Moreover, since the generation of 946nm fluorescence belongs to the quasi-three energy level, the number of p...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H01S3/00H01S3/10
Inventor 李瑞宁许祖彦林学春崔大复王桂玲毕勇姚爱云冯衍汪家升张鸿博巩华荣张杰徐贵昌
Owner INST OF PHYSICS - CHINESE ACAD OF SCI