Effect of multiple transverse modes in self-mixing sensors based on vertical-cavity surface-emitting lasers

John R. Tucker; Aleksandar D. Rakić; Christopher J. O'Brien; Andrei V. Zvyagin

doi:10.1364/AO.46.000611

Effect of multiple transverse modes in self-mixing sensors based on vertical-cavity surface-emitting lasers

John R. Tucker^*, Aleksandar D. Rakić, Christopher J. O'Brien, Andrei V. Zvyagin

^*Corresponding author for this work

Research output: Contribution to journal › Article › peer-review

35 Citations (Scopus)

Abstract

We investigate the effect of coexisting transverse modes on the operation of self-mixing sensors based on vertical-cavity surface-emitting lasers (VCSELs). The effect of multiple transverse modes on the measurement of displacement and distance were examined by simulation and in laboratory experiment. The simulation model shows that the periodic change in the shape and magnitude of the self-mixing signal with modulation current can be properly explained by the different frequency-modulation coefficients of the respective transverse modes in VCSELs. The simulation results are in excellent agreement with measurements performed on single-mode and multimode VCSELs and on self-mixing sensors based on these VCSELs.

Original language	English
Pages (from-to)	611-619
Number of pages	9
Journal	Applied Optics
Volume	46
Issue number	4
DOIs	https://doi.org/10.1364/AO.46.000611
Publication status	Published - 1 Feb 2007
Externally published	Yes

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title = "Effect of multiple transverse modes in self-mixing sensors based on vertical-cavity surface-emitting lasers",

abstract = "We investigate the effect of coexisting transverse modes on the operation of self-mixing sensors based on vertical-cavity surface-emitting lasers (VCSELs). The effect of multiple transverse modes on the measurement of displacement and distance were examined by simulation and in laboratory experiment. The simulation model shows that the periodic change in the shape and magnitude of the self-mixing signal with modulation current can be properly explained by the different frequency-modulation coefficients of the respective transverse modes in VCSELs. The simulation results are in excellent agreement with measurements performed on single-mode and multimode VCSELs and on self-mixing sensors based on these VCSELs.",

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AU - Zvyagin, Andrei V.

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AB - We investigate the effect of coexisting transverse modes on the operation of self-mixing sensors based on vertical-cavity surface-emitting lasers (VCSELs). The effect of multiple transverse modes on the measurement of displacement and distance were examined by simulation and in laboratory experiment. The simulation model shows that the periodic change in the shape and magnitude of the self-mixing signal with modulation current can be properly explained by the different frequency-modulation coefficients of the respective transverse modes in VCSELs. The simulation results are in excellent agreement with measurements performed on single-mode and multimode VCSELs and on self-mixing sensors based on these VCSELs.

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Effect of multiple transverse modes in self-mixing sensors based on vertical-cavity surface-emitting lasers

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