Design of an omnidirectional single-point photodetector for large-scale spatial coordinate measurement

Xie, Hongbo and Mao, Chensheng and Ren, Yongjie and Zhu, Jigui and Wang, Chao and Yang, Lei (2017) Design of an omnidirectional single-point photodetector for large-scale spatial coordinate measurement. Optical Engineering, 56 (10). p. 104105. ISSN 0091-3286. E-ISSN 1560-2303. (doi:https://doi.org/10.1117/1.OE.56.10.104105) (Full text available)

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Abstract

In high precision and large-scale coordinate measurement, one commonly used approach to determine the coordinate of a target point is to utilize the spatial trigonometric relationships between multiple laser transmitting stations and the target point. A light receiving device at target point is the key element in large-scale coordinate measurement systems. To ensure high-resolution and highly-sensitive spatial coordinate measurement, a high-performance and miniaturized omnidirectional single-point photodetector (OSPD) is highly desired. Here we report one design of OSPD using aspheric lens, which achieves enhanced reception angle of -5 to 45 degree in vertical and 360 degree in horizontal. As the heart of our OSPD, the aspheric lens is designed in geometric model and optimized by LightTools Software, which enables reflecting wide-angle incident light beam into the single-point photodiode. The performance of home-made OSPD is characterized with working distances from 1 m to 13 m and further analyzed utilizing established geometric model. The experimental and analytic results verify that our new device is highly suitable for large-scale coordinate metrology. The developed device also holds great potential in various applications such as omnidirectional vision sensor, indoor global positioning system, optical wireless communication systems.

Item Type: Article
Subjects: T Technology > TK Electrical engineering. Electronics Nuclear engineering > TK5101 Telecommunications > TK5103.59 Optical communications, Fibre-optics
Divisions: Faculties > Sciences > School of Engineering and Digital Arts > Broadband & Wireless Communications
Depositing User: Chao Wang
Date Deposited: 21 Sep 2017 19:38 UTC
Last Modified: 11 Oct 2017 09:41 UTC
Resource URI: https://kar.kent.ac.uk/id/eprint/63522 (The current URI for this page, for reference purposes)
Wang, Chao: https://orcid.org/0000-0002-0454-8079
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