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Research on Couple Technology of Megawatt-Class Laser with Optical Fiber

Author: Liu
Tutor: SongGuiCai
School: Changchun University of Science and Technology
Course: Physical Electronics
Keywords: laser megawatt-class glass frustum of a cone coupling
CLC: TN248
Type: Master's thesis
Year: 2010
Downloads: 85
Quote: 0
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Abstract


Today’s world, high-power laser with a growing number of them has been applied to various fields. How these high-power lasers coupled into the fiber optic cables has become an issue worth exploring.In this paper, first works on the laser and classification of such knowledge were introduced, and then elaborated on the coupling of several basic approaches and on its analysis of the causes of health loss. On this basis, a glass frustum of a cone type laser-fiber coupler has been designed. When cylindrical Gauss beam incident into the hollow cone coupler, it will form a light spot which the energy density becomes quasi-average distribution. By using this coupler, the coupling of a high-power reaches megawatt and electro-optical Q-switched Nd:YAG laser with the multimode optical fiber has been realized and the coupling efficiency is 71%.

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CLC: > Industrial Technology > Radio electronics, telecommunications technology > Photonics technology,laser technology > Laser technology, the maser > Laser
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