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28 April 2016 Reading a CD-ROM without a photodiode
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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.
© (2016) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Michael J. Wishon, G. Mourozeau, K. Ng, A. A. Sahai, Alexandre Locquet, and D. S. Citrin "Reading a CD-ROM without a photodiode", Proc. SPIE 9892, Semiconductor Lasers and Laser Dynamics VII, 98921Z (28 April 2016); https://doi.org/10.1117/12.2227815
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