Laser driving device and method for enabling uniform light field
AssigneeShanghai Institute of Optics And Fine Mechanics, Chinese Academy of Sciences
InventorsJianqiang Zhu, Xiaoqi Zhang, Gengxiu Tang, Hua Tao, Zhigang Liu
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Abstract
A laser driving device and a method for enabling a uniform light field, wherein the laser driving device is a high-power laser driving device that enables a uniform light field on the basis of a narrow-band low-spatial-coherence light and is provided for laser fusion. The narrow-band low-spatial-coherence light is configured as a seed of the laser driving device, an amplification and transmission unit amplifies the seed, a frequency conversion unit converts a frequency of the laser, and a focusing component is configured for laser focusing and uniform illumination.
Claims11
A laser driving device, comprising:
- a laser seed (1),
- an amplification and transmission unit (2),
- a frequency conversion unit (3), and
- a focusing unit (4),
- wherein the laser seed (1) is a narrow-band low-spatial-coherence light source with a bandwidth of no more than 5 Å and configured for generating a narrow-band low-spatial-coherence laser,
- the amplification and transmission unit (2) is configured for amplifying and transmitting the laser, wherein the amplification and transmission unit (2) comprises one or more amplification gain media, and the amplification gain media are plate- or sheet-shaped,
- the frequency conversion unit (3) is configured for converting frequencies of the laser, and
- the focusing unit (4) is configured for laser focusing;
- the laser seed (1) generates a narrow-band low-spatial-coherence light, the narrow-band low-spatial-coherence light is amplified by the amplification and transmission unit (2) and is subjected to frequency conversion performed by the frequency conversion unit (3), and then the light with a converted frequency is focused by the focusing unit (4).
Dependencies are inferred from the claim text.