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  4. VCSEL-based miniature laser-self-mixing interferometer with integrated optical and electronic components
 
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2009
Conference Paper
Title

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

Abstract
It has been previously published [1] how, using two separate Vertical-Cavity-Surface-Emitting-Lasers (VCSELs), a miniature laser-Doppler interferometer can be made for quasi-three-dimensional displacement measurements. For the use in consumer applications as PC-mice, the manufacturing costs of such sensors need to be minimized. This paper describes the fabrication of a low-cost laser-self-mixing sensor by integrating silicon and GaAs components using flipchip technology. Wafer-scale lens replication on GaAs wafers is used to achieve integrated optics. In this way a sensor was realized without an external lens and that uses only a single GaAs VCSEL crystal, while maintaining its quasi-threedimensional sensor capabilities.
Author(s)
Pruijmboom, A.
Booij, S.
Schemmann, M.
Werner, K.
Hoeven, P.
Limpt, H. van
Intemann, S.
Jordan, R.
Fritzsch, T.
Oppermann, H.
Barge, M.
Mainwork
Photonics packaging, integration, and interconnects IX  
Conference
Conference "Photonics Packaging, Integration, and Interconnects" 2009  
DOI
10.1117/12.808810
Language
English
Fraunhofer-Institut für Zuverlässigkeit und Mikrointegration IZM  
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