Effect of linewidth enhancement factor on Doppler beat waveform obtained from a self-mixing laser diode

Şahin Kaya Özdemir; Shigenobu Shinohara; Hirofumi Yoshida

doi:10.1007/s10043-000-0550-7

Effect of linewidth enhancement factor on Doppler beat waveform obtained from a self-mixing laser diode

Şahin Kaya Özdemir, Shigenobu Shinohara, Hirofumi Yoshida

Engineering Science and Mechanics

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

9 Scopus citations

Abstract

The asymmetry and fringe inclination of the sawtooth-like waveform observed in the self-mixing signal obtained from a semiconductor laser with optical feedback enable the direction discrimination of line-of-sight motion of external target surfaces. We investigated the effects of linewidth enhancement factor and feedback strength on the asymmetry and the direction of fringe inclination of the signal by numerical simulations. For the first time, we show that direction of the fringe inclination is determined not only by the direction of the target motion but also by the value of the linewidth enhancement factor.

Original language	English (US)
Pages (from-to)	550-554
Number of pages	5
Journal	Optical Review
Volume	7
Issue number	6
DOIs	https://doi.org/10.1007/s10043-000-0550-7
State	Published - 2000

All Science Journal Classification (ASJC) codes

Atomic and Molecular Physics, and Optics

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10.1007/s10043-000-0550-7

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abstract = "The asymmetry and fringe inclination of the sawtooth-like waveform observed in the self-mixing signal obtained from a semiconductor laser with optical feedback enable the direction discrimination of line-of-sight motion of external target surfaces. We investigated the effects of linewidth enhancement factor and feedback strength on the asymmetry and the direction of fringe inclination of the signal by numerical simulations. For the first time, we show that direction of the fringe inclination is determined not only by the direction of the target motion but also by the value of the linewidth enhancement factor.",

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AU - Özdemir, Şahin Kaya

AU - Shinohara, Shigenobu

AU - Yoshida, Hirofumi

PY - 2000

Y1 - 2000

N2 - The asymmetry and fringe inclination of the sawtooth-like waveform observed in the self-mixing signal obtained from a semiconductor laser with optical feedback enable the direction discrimination of line-of-sight motion of external target surfaces. We investigated the effects of linewidth enhancement factor and feedback strength on the asymmetry and the direction of fringe inclination of the signal by numerical simulations. For the first time, we show that direction of the fringe inclination is determined not only by the direction of the target motion but also by the value of the linewidth enhancement factor.

AB - The asymmetry and fringe inclination of the sawtooth-like waveform observed in the self-mixing signal obtained from a semiconductor laser with optical feedback enable the direction discrimination of line-of-sight motion of external target surfaces. We investigated the effects of linewidth enhancement factor and feedback strength on the asymmetry and the direction of fringe inclination of the signal by numerical simulations. For the first time, we show that direction of the fringe inclination is determined not only by the direction of the target motion but also by the value of the linewidth enhancement factor.

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JO - Optical Review

JF - Optical Review

IS - 6

ER -

Effect of linewidth enhancement factor on Doppler beat waveform obtained from a self-mixing laser diode

Abstract

All Science Journal Classification (ASJC) codes

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