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Proceedings Paper

Reading a CD-ROM without a photodiode
Author(s): Michael J. Wishon; G. Mourozeau; K. Ng; A. A. Sahai; Alexandre Locquet; D. S. Citrin
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Paper Abstract

We use a laser diode from a commercial CD/DVD-ROM drive to detect changes in the surface of a diffraction grating without a photodiode. Specifically, we exploit the changing terminal voltage in the laser-diode due to changing feedback strength as the laser is rastered across the grating's surface.

Paper Details

Date Published: 28 April 2016
PDF: 4 pages
Proc. SPIE 9892, Semiconductor Lasers and Laser Dynamics VII, 98921Z (28 April 2016); doi: 10.1117/12.2227815
Show Author Affiliations
Michael J. Wishon, Georgia Tech-Lorraine, CNRS (France)
George Institute of Technology (United States)
G. Mourozeau, Georgia Tech-Lorraine, CNRS (France)
George Institute of Technology (United States)
K. Ng, Georgia Tech-Lorraine, CNRS (France)
Georgia Institute of Technology (United States)
A. A. Sahai, Georgia-Tech Lorraine, CNRS (France)
George Institute of Technology (United States)
Alexandre Locquet, Georgia Tech-Lorraine, CNRS (France)
Georgia Institute of Technology (United States)
D. S. Citrin, Georgia Tech-Lorraine, CNRS (France)
Georgia Institute of Technology (United States)


Published in SPIE Proceedings Vol. 9892:
Semiconductor Lasers and Laser Dynamics VII
Krassimir Panajotov; Marc Sciamanna; Angel Valle; Rainer Michalzik, Editor(s)

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