Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status

Nie, Bairun; Ruan, Yuxi; Yu, Yanguang; Guo, Qinghua; Fang, Can; Xi, Jiangtao; Tong, Jun; Du, Haiping

doi:10.3390/s22030963

Open AccessArticle

Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status

by

Bairun Nie

,

Yuxi Ruan

,

Yanguang Yu

^*

,

Qinghua Guo

,

Can Fang

,

Jiangtao Xi

,

Jun Tong

and

Haiping Du

School of Electrical, Computer and Telecommunications Engineering, University of Wollongong, Northfields Avenue, Wollongong, NSW 2522, Australia

^*

Author to whom correspondence should be addressed.

Sensors 2022, 22(3), 963; https://doi.org/10.3390/s22030963

Submission received: 10 December 2021 / Revised: 19 January 2022 / Accepted: 24 January 2022 / Published: 26 January 2022

(This article belongs to the Collection Position Sensor)

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Abstract

In this study, a novel distance sensing method is presented by using a semiconductor laser (SL) with optical feedback (OF) and operating the SL at a switching status happened between two nonlinear dynamic states (stable state and period-one state). In this case, without the need for any electronic or optical modulation devices, the laser intensity can be modulated in a square wave form due to the switching via utilizing the inherent SL dynamics. The periodicity in the switching enables us to develop a new approach for long-distance sensing compared to other SL with OF-based distance measurement systems and lift the relevant restrictions that existed in the systems. Moreover, the impact of system controllable parameters on the duty cycle of the square wave signals generated was investigated on how to maintain the proposed system robustly operating at the switching status. Both simulation and experiment verified the proposed sensing approach.

Keywords: distance sensing; semiconductor laser; optical feedback; laser dynamics; Hopf-bifurcation

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MDPI and ACS Style

Nie, B.; Ruan, Y.; Yu, Y.; Guo, Q.; Fang, C.; Xi, J.; Tong, J.; Du, H. Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status. Sensors 2022, 22, 963. https://doi.org/10.3390/s22030963

AMA Style

Nie B, Ruan Y, Yu Y, Guo Q, Fang C, Xi J, Tong J, Du H. Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status. Sensors. 2022; 22(3):963. https://doi.org/10.3390/s22030963

Chicago/Turabian Style

Nie, Bairun, Yuxi Ruan, Yanguang Yu, Qinghua Guo, Can Fang, Jiangtao Xi, Jun Tong, and Haiping Du. 2022. "Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status" Sensors 22, no. 3: 963. https://doi.org/10.3390/s22030963

APA Style

Nie, B., Ruan, Y., Yu, Y., Guo, Q., Fang, C., Xi, J., Tong, J., & Du, H. (2022). Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status. Sensors, 22(3), 963. https://doi.org/10.3390/s22030963

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Achieving Long Distance Sensing Using Semiconductor Laser with Optical Feedback by Operating at Switching Status

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