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Method for setting super crystalline lattice all solid state red-yellow-green-blue four-color laser

A superlattice, all-solid-state technology used in lasers, laser components, structure/shape of optical resonators, etc.

Inactive Publication Date: 2005-11-09
NANJING UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

[0007] In summary, none of these research and technical approaches involve the simultaneous excitation of Nd:YVO 4 The 1.064μm and 1.342μm dual-wavelength laser resonance of the crystal uses a single-structure (non-periodic) superlattice crystal to simultaneously generate red, yellow, and green frequencies for 1.064μm and 1.342μm fundamental wave frequency multiplication, sum frequency, and triple frequency , blue four-color laser effective output

Method used

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  • Method for setting super crystalline lattice all solid state red-yellow-green-blue four-color laser
  • Method for setting super crystalline lattice all solid state red-yellow-green-blue four-color laser

Examples

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Embodiment 1

[0062] Implementation example 1 is attached according to the instructions figure 1 Make a superlattice all-solid-state red, yellow, green and blue four-color laser (already realized). The output wavelength of the pump source LD is 0.808μm, and the maximum output power is 30W. Nd:YVO 4 The front and rear surfaces of the crystal 4 are coated with 1.064 and 1.342 μm anti-reflection coatings. The input mirror 3 is highly reflective to both 1.064 μm and 1.342 μm, and forms a 1.342 μm laser resonant cavity with cavity mirror 6, and a 1.064 μm laser resonant cavity with cavity mirror 7. The acousto-optic switch 5 is placed in the cavity to obtain quasi-continuous 1.064 μm and 1.342 μm laser light. A non-periodically polarized LT superlattice 10 (about 1 cm in length) is placed in a temperature-controlled furnace 9 to adjust the temperature. Simultaneous output of red, yellow, green and blue four-color lasers can be obtained at the matching temperature.

Embodiment 2

[0064] According to the manual attached figure 1 Make a superlattice all-solid-state red, yellow, green and blue four-color laser. The difference from Example 1 is that both ends of the superlattice 10 are coated with 1.064 μm and 1.342 μm antireflection coatings and visible light antireflection coatings. The input mirror 3 is also highly reflective to visible light, the output cavity mirror 6 is 1.342 μm high and 1.064 μm and visible light is highly transparent, and the output cavity mirror 7 is 1.064 μm high and visible light is highly transparent. frequency conversion. Simultaneous output of red, yellow, green and blue four-color lasers can be obtained at the matching temperature.

Embodiment 3

[0066] According to the manual attached figure 2 Make a superlattice all-solid-state red, yellow, green and blue four-color laser. The difference from examples 1 and 2 is that the method of folding and shunting is adopted. The input mirror 3 is highly reflective to both 1.064μm and 1.342μm, 11 is a 45° beam splitter, which is highly reflective to 1.342μm and highly transparent to 1.064μm; 12 and 13 are cavity mirrors with high reflection to 1.064μm and 1.342μm respectively. The 1.342μm laser oscillates between 13 and 6, and the 1.064μm laser oscillates between 12 and 7. The quasi-continuous light generated by the acousto-optic modulator can adjust the time delay of the two acousto-optic control signals to suppress dual-wave competition or improve the synchronization characteristics (time overlap) of dual-wave pulses. Outside the chamber, the superlattice 10 is placed in a temperature-controlled furnace 9 to adjust the temperature. Simultaneous output of red, yellow, green ...

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Abstract

Superlattice solid red, yellow, green and blue laser is to pump Nd: YVO4 crystals with LD, and 1.064 um and 1.342 laser oscillate simultane-ously in the way of cavity of shunt fold to output in collineation (eg. 1.342 um laser oscillates between 3-6, 1.064 um between 3-7). An non-periodic LiTaO3 superlattice capable of realizing laser frequency multiplications 1.064 um (green), 1.342um (red) and frequency-triple (blue) and sum frequency of the two laser (yellow) is put in a temperature controlled over in or out a cavity to get red, yellow green and blue to output simultaneously.

Description

1. Technical field [0001] The invention relates to a superlattice all-solid-state red, yellow, green and blue four-color laser setting method, which can simultaneously excite Nd-doped ion laser crystal multi-wavelength laser resonance, and use a superlattice to realize multiple frequency doubling, and The nonlinear frequency conversion process of frequency and triple frequency can obtain red, yellow, green and blue four-color laser output at the same time. [0002] Using superlattice crystals for nonlinear optical frequency conversion is an important means to obtain laser output in the visible light band. Through proper superlattice microstructure design, multiple frequency conversion processes (frequency doubling, tripling, and sum frequency) can be realized simultaneously by using its second-order nonlinear effect, and multi-wavelength laser output in the visible light band can be realized simultaneously. 2. Background technology [0003] Previous related work includes: ...

Claims

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Application Information

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IPC IPC(8): H01S3/08H01S3/10H01S3/16
Inventor 何京良廖军刘辉祝世宁朱永元王慧田闵乃本
Owner NANJING UNIV
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