A laser gain chip, laser component, power amplifier and oscillator

A laser gain chip, laser technology, applied in lasers, laser parts, phonon exciters, etc., can solve the problems of difficult to ensure the stability of laser devices, complex structure, bulky and other problems, and achieve the benefits of engineering implementation and convenient operation. , the effect of high gain ability
CN105870772BInactive Publication Date: 2018-11-23LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
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Patent Information

Authority / Receiving Office
CN Β· China
Patent Type
Patents(China)
Current Assignee / Owner
LASER FUSION RES CENT CHINA ACAD OF ENG PHYSICS
Publication Date
2018-11-23
Estimated Expiration
Not applicable Β· inactive patent

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Abstract

The invention relates to a laser gain chip, a laser assembly, a power amplifier and an oscillator, and belongs to the technical field of laser equipment. The laser gain chip comprises a laser source, a gain medium, a pumping source and cooling fluid, wherein the pumping source comprises a diode array and a coupling device which are connected; the laser source, the coupling device and the cooling fluid are respectively arranged in a way of corresponding to different side surfaces of the gain media; the transmission directions of cooling fluid, pumping light and laser are in perpendicular quadrature; a gradual change doping structure is arranged inside the gain medium along the transmission direction of the pumping light. The three fields including the pumping field, the laser field and the cooling fluid field are in perpendicular quadrature; the space coupling in the three fields is relieved, so that each field can be independently controlled; in addition, each gain medium has a unique pumping source; a plurality of laser gain chips are in cascade connection in the laser transmission direction; the power expansion can be realized; the operation is convenient; the engineering implementation is facilitated.
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Description

technical field

[0001] The invention belongs to the technical field of laser equipment, and in particular relates to a laser gain chip, a laser component, a power amplifier and an oscillator. Background technique

[0002] High average power lasers are widely used in national defense, industry, scientific research and other fields. In repetitive frequency high-energy and high-power laser devices, slab-shaped, lamination-shaped or thin-sheet-shaped gain media are generally used. The advantage of the slab medium is that the laser beam is confined inside the slab in a way of total reflection transmission. This transmission optical path is called the Zig-Zag optical path. Inhomogeneity reduces the resulting thermal lensing and stress-induced birefringence. The pumping method has been developed from the initial side pumping to the end pumping, which increases the absorption length of the pumping light from the millimeter level to the centimeter level, ensures the efficient absor...

Claims

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