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Research and Prepare about Optical Films of Fiber Laser

Author: MeiYuShan
Tutor: FuXiuHua
School: Changchun University of Science and Technology
Course: Optical Engineering
Keywords: Vacuum coating Anti-reflection film High reflector Multimode fiber
CLC: TN248
Type: Master's thesis
Year: 2011
Downloads: 49
Quote: 0
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Abstract


In order to further reduce the laser in the transmission process of light energy loss, in view of the multimode optical fiber and optical system of optical components, optical thin film theory, according to the design and preparation of the minus reflection film and resistance to laser high reflection film. And the laser film coating materials, membrane system design, sedimentary process and ion assisted deposition parameters were studied. Use vacuum coating technology, using TFC software membrane system design, improve the efficiency of the laser damage threshold, solve the low temperature cold plating film fastness problems. Through the system of plating substrate after the test results analysis, adjust the coating process parameters and monitoring method reduced the film thickness error. The preparation of reduced reverse film reflectance R lt; 0.2%, high reflection film when laser to 25 °, 65 ° incident, the reflectance R gt; 99.7%.

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