Blar i USN Open Archive på forfatter "Tong, Zhaomin"
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Combination of micro-scanning mirrors and multi-mode fibers for speckle reduction in high lumen laser projector applications
Tong, Zhaomin; Shen, Wenjiang; Song, Shaohua; Cheng, Wenzhi; Cai, Zhuo; Ma, Yifei; Wei, Lei; Ma, Weiguang; Xiao, Liantuan; Jia, Suotang; Chen, Xuyuan (Peer reviewed; Journal article, 2017)In high lumen laser projectors, it is required to use laser diodes coupled to multi-mode fibers (MMFs) to obtain a high power illumination module. In this paper, we have fabricated an electromagnetic micro-scanning mirror ... -
Laser Spatial Coherence Suppression With Refractive Optical Elements Toward the Improvement of Speckle Reduction by Light Pipes
Tong, Zhaomin; Sun, C; Ma, Y; Wang, M; Jia, S; Chen, Xuyuan (Peer reviewed; Journal article, 2019)We study laser speckle reduction by light pipes, and we propose a new method to improve its efficiency. Proof-of-concept refractive optical elements (ROEs) with a staircase-like structure are introduced before a holographic ... -
Nonsequential Speckle Reduction Method by Generating Uncorrelated Laser Subbeams with Equivalent Intensity Using a Reflective Spatial Light Modulator
Tong, Zhaomin; Song, Shaohua; Jia, Suotang; Chen, Xuyuan (Journal article; Peer reviewed, 2017)Sequential speckle reduction methods demand the usage of fast modulators due to the short integration period of human eyes. Here, a nonsequential speckle reduction method by splitting one laser beam with short coherence ...