Analysis of Laser Cell Response Characteristics under Different Irradiation Conditions

Xudong Wang, Jinmao Chen, Chunhua Xiong, Shizhan Li and Wanli Xu ()
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Xudong Wang: Academy of Military Science, Institute of System Engineering, Beijing 102300, China
Jinmao Chen: Academy of Military Science, Institute of System Engineering, Beijing 102300, China
Chunhua Xiong: Academy of Military Science, Institute of System Engineering, Beijing 102300, China
Shizhan Li: Academy of Military Science, Institute of System Engineering, Beijing 102300, China
Wanli Xu: Academy of Military Science, Institute of System Engineering, Beijing 102300, China

Sustainability, 2023, vol. 15, issue 4, 1-11

Abstract: Although the application of laser wireless energy transmission technology in many fields such as UAV power supply is increasing, the laser incidence angle and beam shift remain the key factors limiting the efficiency of long-range laser wireless energy transmission. In this study, a laser cell response test platform was built to measure and analyze the response characteristics of a laser cell under different laser incidence angles and beam shifts. The results show that the increase in the incident angle intensifies the reflection on the irradiated surface, resulting in a linear decrease in the power density received by the laser cell, which eventually leads to a significant decrease in the output power, and the output power tends to be close to 0 when the incident angle exceeds 75°. The increase in the beam offset distance increases the reverse bias of the cell, which is the main reason for the significant decrease in the output power. The local irradiation also leads to an increase in the heat generation power; when the beam coverage is below 50%, the overall output power tends to be close to 0. This study provides a reference for improving the laser wireless energy transmission efficiency and laser cell optimization.

Keywords: laser wireless energy transmission; incidence angle; beam shift; laser cell response characteristics (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (1)

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