Title :
Position sensing using integrated VCSEL and PIN photodectors
Author :
Giannopoulos, Antonios V. ; Choquette, Kent D.
Author_Institution :
Dept. of Electr. & Comput. Eng., Univ. of Illinois, Urbana, IL
Abstract :
The integration of VCSELs with p-type/intrinsic/n-type (PIN) photodetectors has enabled many applications, primarily in communications links. VCSELs as optical encoders can act as non-interfering and non-contact, long-range position sensors. In this work, we analyze the use of an integrated VCSEL and non-spectrally selective PIN photodetectors in conjunction with a metallic corrugation (grating) as a lateral position sensor.
Keywords :
diffraction gratings; integrated optics; integrated optoelectronics; optical sensors; p-i-n photodiodes; position measurement; surface emitting lasers; PIN photodetectors; VCSEL; grating; integrated optoelectronics; position sensing; Detectors; Electrons; Geometrical optics; Geometry; Gratings; Optical sensors; Photodetectors; Position measurement; Power measurement; Vertical cavity surface emitting lasers;
Conference_Titel :
IEEE Lasers and Electro-Optics Society, 2008. LEOS 2008. 21st Annual Meeting of the
Conference_Location :
Acapulco
Print_ISBN :
978-1-4244-1931-9
Electronic_ISBN :
978-1-4244-1932-6
DOI :
10.1109/LEOS.2008.4688587
