Laser Glass Low Temperature Bonding and Encapsulation Method
A technology of laser glass and low-temperature bonding, which is applied in the field of low-temperature bonding and encapsulation of laser glass and low-temperature bonding and encapsulation of sheet laser glass. Good weather resistance, high bonding strength, and good refractive index matching
Active Publication Date: 2018-06-19
SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI
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Problems solved by technology
Polymer edging is currently commonly used in 10,000-joule laser devices, that is, using organic adhesives such as epoxy resin glue to combine laser glass and Cu-containing 2+ The edge-wrapping glass is firmly pasted together, and the edge-wrapping glue meets the refractive index matching. This kind of edge-wrapping method is easy to operate and has good reliability. However, due to the use of organic adhesives, the adhesive layer is easily aged and easily Shedding, poor weather resistance
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[0023] The present invention will be further described below in conjunction with the embodiments and accompanying drawings, but the protection scope of the present invention should not be limited thereby.
[0024] refer to figure 1 , figure 2 . As shown in the figure, a specific embodiment of a laser glass low-temperature bonding and wrapping method using an anti-reflection film as an inorganic adhesive.
[0025] Laser glass low-temperature bonding wrapping method of the present invention comprises the following steps:
[0026] Step 1. Select laser glass 1 and edge-wrapping glass 2. The difference between the thermal expansion coefficient of edge-wrapping glass 2 and laser glass 1 is less than 2%. The refractive indices of laser glass 1 and edge-wrapping glass 2 in the laser operating band are respectively no 1 ,n 2 , satisfy n 1 2 . For example, the refractive index of N31 neodymium glass and edged glass are 1.528 and 1.536 respectively in the 1053nm band. Thermal ex...
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The invention provides a laser glass low temperature bonding edge covering method. According to the method, an anti-reflection film is taken as the inorganic adhesive, laser glass and Cu<2+> doped edge-covered glass are adopted, and the lateral surfaces of the laser glass and the edge-covered glass are all grinded, polished, and cleaned. The lateral surfaces of the laser glass and the edge-covered glass are all provided with a film with a reflection reducing property, and the refractive index of the film is between the refractive index of the laser glass and the refractive index of the edge-covered glass. The coated surfaces of the laser glass and edge-covered glass are firmly bound together through low temperature bonding. The provided method solves the problems that (1) in the conventional edge covering technology, the edge covering glue falls off easily due to the aging of the edge covering glue; (2) the defect scattering caused by lateral surface processing is reduced.
Description
technical field [0001] The invention relates to laser glass, in particular to a low-temperature bonding and wrapping method for laser glass. In more detail, it is a low-temperature bonding and wrapping method for sheet laser glass. Background technique [0002] Laser glass is a commonly used gain medium in 10,000-joule laser devices, and its energy conversion characteristics directly affect the gain capability of the device. As the aperture increases, the influence of amplified spontaneous emission (ASE) and parasitic oscillation (PO) on gain uniformity becomes more and more significant. In order to suppress ASE and PO, an edge wrapping process is applied to the sides of the laser glass. [0003] Existing edging processes include sintering edging, such as US Patent 3885974, liquid edging, such as "Parasiticsuppression in large aperture disk lasers employing liquid edge claddings", polymer edging, such as US Patent 4849036, Chinese Patent CN10197679A, etc., coating Hemming...
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IPC IPC(8): C03C27/10
CPCC03C27/10
Inventor 朱健强王冰艳尤科伟李海元熊怀陈知亚梁海荣张艳丽
Owner SHANGHAI INST OF OPTICS & FINE MECHANICS CHINESE ACAD OF SCI