Research on the influence of laser-tuning characteristics on all-fiber distributed Bragg reflector self-mixing rangefinder

Tiezhu Bi; Chenchen Wang; Junfeng Zhou; Dehui Wang; Youze Chen; Benli Yu; Liang Lu

doi:10.1117/1.OE.57.5.051505

15 February 2018 Research on the influence of laser-tuning characteristics on all-fiber distributed Bragg reflector self-mixing rangefinder

Tiezhu Bi, Chenchen Wang, Junfeng Zhou, Dehui Wang, Youze Chen, Benli Yu, Liang Lu

Author Affiliations +

Optical Engineering, Vol. 57, Issue 5, 051505 (February 2018). https://doi.org/10.1117/1.OE.57.5.051505

Abstract

We proposed an all-fiber tunable distributed Bragg reflector (DBR) laser rangefinder, which realized high-accuracy measurement of the absolute distance in the range of 1.88 to 3.33 m based on the self-mixing effect. The theoretical analysis of the all-fiber tunable DBR laser shows that wavelength tuning range and frequency of the laser can influence the measurement range and resolution. In addition, the experimental results indicate that the influence factors of measurement accuracy and sensitivity in absolute distance measurement are modulation response linearity, experimental equipment, and circuit bandwidth, which is in good agreement with theory analysis. Moreover, increasing the linear wavelength tuning range of the tunable DBR laser is an essential method to improve the measurement accuracy and sensitivity of the absolute distance measurement system.

Citation Download Citation

Tiezhu Bi, Chenchen Wang, Junfeng Zhou, Dehui Wang, Youze Chen, Benli Yu, and Liang Lu "Research on the influence of laser-tuning characteristics on all-fiber distributed Bragg reflector self-mixing rangefinder," Optical Engineering 57(5), 051505 (15 February 2018). https://doi.org/10.1117/1.OE.57.5.051505

Received: 14 November 2017; Accepted: 24 January 2018; Published: 15 February 2018

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