Application of a Novel Nd:YAG/PPMgLN Laser Module Speckle-Suppressed by Multi-Mode Fibers in an Exhibition Environment

Photonics

Hong-Yi Lin¹  Tao Yu¹  Shang-Feng Bao¹  Wen-Jian Shi²  Xiao Liu³  Xin-Ting Zeng³ 

[1]Fujian Key Laboratory of Optoelectronic Technology and Devices, Xiamen University of Technology, Xiamen 361024, China

[2]Fujian Zoomking Technology Co., Ltd., Longyan 364100, China

[3]School of Cultural Industries and Tourism, Xiamen University of Technology, Xiamen 361024, China

关键词: exhibitions;    laser;    speckle suppression;    fiber;    Nd:YAG/PPMgLN crystal;   

DOI  :  10.3390/photonics9010046

来源: DOAJ

【 摘 要 】

Laser exhibition technology has been widely used in the virtual environment of exhibitions and shows, as well as in the physical conference and exhibition centers. However, the speckle issue due to the high coherence of laser sources has caused harmful impacts on image quality, which is one of the obstacles to exhibition effects. In this paper, we design a compact Nd:YAG/PPMgLN laser module at 561.5 nm and use two different types of big-core multi-mode fibers to lower the spatial coherence. According to our experiment, the speckle contrasts relating to these two types reduce to 7.9% and 4.1%, respectively. The results of this paper contribute to improving the application effects of key optical components in the exhibitions. Only in this way can we provide technical supports and service guarantee for the development of the exhibition activities, and an immersive interactive experience for the audiences.

【 授权许可】

Unknown