A VCSEL-based miniature laser-self-mixing interferometer with integrated optical and electronic components

Pruijmboom, A.; Booij, Silvia M.; Schemmann, M.F.C.; Klaus, Werner; Hoeven, Pieter; Limpt, Henri van; Intemann, Steffan; Jordan, R.; Fritzsch, T.; Oppermann, Hermann; Barge, M

doi:10.1117/12.808810

Cited by 11 publications

(8 citation statements)

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“…The twin-eye laser sensor provided by Philips (Figure 1) [28] is a compact motion sensor (6.86 mm square and 3.86 mm high) based on two independent self-mixing Vertical-Cavity-Surface-Emitting Lasers [27] (VCSELs) for surface tracking [24,25] on two axes; each laser is used to emit and receive the reflected light. The sensor device includes a DSP, two solidstate lasers, and plastic lenses integrated into the same chip [24].…”

Section: The Twin-eye Laser Sensormentioning

confidence: 99%

“…For example, in [20], an optical mouse sensor was used to perform Optical Coherence Tomography for manual image scanning. Doppler sensors [21][22][23][24][25] measure displacement based on the Doppler effect by comparing the shifted phase modulation of the reflected light relative to the original laser light [25][26][27]. The velocity of the motion is proportional to the Doppler shift and the displacement is obtained by integrating the velocity into a plane movement over time.…”

Section: Introductionmentioning

confidence: 99%

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Experimental Characterization of the Twin-Eye Laser Mouse Sensor

et al. 2016

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This paper proposes the experimental characterization of a laser mouse sensor used in some optical mouse devices. The sensor characterized is called twin-eye laser mouse sensor and uses the Doppler effect to measure displacement as an alternative to optical flow-based mouse sensors. The experimental characterization showed similar measurement performances to optical flow sensors except in the sensitivity to height changes and when measuring nonlinear displacements, where the twin-eye sensor offered better performance. The measurement principle of this optical sensor can be applied to the development of alternative inexpensive applications that require planar displacement measurement and poor sensitivity toz-axis changes such as mobile robotics.

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Section: The Twin-eye Laser Sensormentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

Experimental Characterization of the Twin-Eye Laser Mouse Sensor

et al. 2016

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“…Therefore, the object velocity can be calculated by determining the Doppler frequency, for example with the Fast Fourier Transformation (FFT) [9]. The direction of the motion can also be detected by adding a frequency modulation technique.…”

Section: Fig 3: Working Principle Of Pln-2037 Lasermentioning

confidence: 99%

P1.9 - Rotational Speed Measurement Based on Laser Mouse Sensors

Liu¹,

Liu²,

Sun³

et al. 2016

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In this paper, a rotational speed measuring method is proposed on the basis of a laser mouse sensor. A target disc, which reflects the laser beam, is mounted on the shaft of a motor under test. The laser mouse sensor is coupled with the target disc with an air gap. The change of the air gap between the laser sensor and target disc can be sampled with the laser mouse sensor ADNS-9800 of Avago/PixArt, so that the rotational speed from 50 RPM to 6000 RPM can be determined by using Fast Fourier Transform. The laser mouse sensor PLN-2037 of Philips uses displacement counts in order to determine the tangential speed, which is proportional to the rotational speed. This sensor can be used for measuring the speed from 10 RPM to 50 RPM. A combination of both sensors ADNS-9800 and PLN-2037 will provide a measuring range from 10 RPM to 6000 RPM.

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“…In addition, very high production volumes of 850 nm VCSELs are found in optical sensing, in particular in optical computer mice [3]. Metalorganic vapor phase epitaxy (MOVPE) and molecular beam epitaxy (MBE) are used for the growth of this class of semiconductor devices.…”

Section: Introductionmentioning

confidence: 99%