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Proceedings Paper

Research on VCSEL interference analysis and elimination method
Author(s): Lingyu Kong; Guangxian Jin; Hui Meng; Yuanyuan Dong; Jingyu Wang; Tongyu Liu; Tong Sun; Kenneth T. V. Grattan
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Paper Abstract

Laser methane gas sensors have been increasingly accepted in coal mine safety monitoring. Most laser spectroscopic methane gas sensors are based in BFB lasers at around 1650nm. However, they suffer from high power consumption and high cost due to temperature control is required for laser diode operation at constant temperature. VCSEL lasers have offered low operation current and low power consumption when operating at non-TEC mode. However, it is found that the interference noise is critical for laser methane detection. This paper report typical results of the laser diode ripple characterization method and methods of noise reduction methods are discussed.

Paper Details

Date Published: 18 December 2019
PDF: 6 pages
Proc. SPIE 11340, AOPC 2019: Optical Fiber Sensors and Communication, 113401W (18 December 2019); doi: 10.1117/12.2548147
Show Author Affiliations
Lingyu Kong, Qilu Univ. of Technology (China)
Shandong Micro-Sensor Photonics Co., Ltd. (China)
Guangxian Jin, Shandong Micro-Sensor Photonics Co., Ltd. (China)
Hui Meng, Shandong Micro-Sensor Photonics Co., Ltd. (China)
Yuanyuan Dong, Shandong Micro-Sensor Photonics Co., Ltd. (China)
Jingyu Wang, Shandong Micro-Sensor Photonics Co., Ltd. (China)
Tongyu Liu, Qilu Univ. of Technology (China)
Shandong Micro-Sensor Photonics Co., Ltd. (China)
Tong Sun, City, Univ. of London (United Kingdom)
Kenneth T. V. Grattan, Qilu Univ. of Technology (China)
City, Univ. of London (United Kingdom)


Published in SPIE Proceedings Vol. 11340:
AOPC 2019: Optical Fiber Sensors and Communication
Jie Zhang; Songnian Fu; Jun Yang, Editor(s)

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