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Reading bits on a CD-ROM without a photodiode

Abstract : The authors demonstrate that the bits of a Compact Disc – Read Only Memory (CD-ROM) can be read without aphotodiode (PD). A commercial CD-ROM drive was used and left unmodified except a beam splitter was removed which wouldroute the light to a PD. This allowed for the reflected light to be incident on the laser within the laser package itself. Bymonitoring fluctuations in the voltage across the laser diode under constant-current injection, it was possible to read andinterpret the bits from a spinning CD-ROM
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Submitted on : Thursday, November 19, 2020 - 2:32:45 PM
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Michael Joseph Wishon, A. Locquet, Guillaume Mourozeau, Daeyoung Choi, Sreejith K.R., et al.. Reading bits on a CD-ROM without a photodiode. IET Optoelectronics, Institution of Engineering and Technology, 2017, 11 (5), pp.213-216. ⟨10.1049/iet-opt.2016.0118⟩. ⟨hal-03014515⟩



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