Voice transmission via frequency-modulated diode laser light

Seung Koo Lee, Deok In Kim, Gee Na Kim, D. Cho

Research output: Contribution to journalArticle

2 Citations (Scopus)


We have built a tabletop frequency modulation (FM) communication system that uses a laser field as the carrier. Voice information is encoded on the laser beam using an acousto-optic modulator, and it is extracted by a Michelson-type interferometer and a FM radio. This system can easily be converted to an intensity-modulated communication system. We discuss similar systems based on phase or polarization modulation using an electro-optic modulator.

Original languageEnglish
Pages (from-to)1037-1039
Number of pages3
JournalAmerican Journal of Physics
Issue number11
Publication statusPublished - 2006 Nov 1

ASJC Scopus subject areas

  • Physics and Astronomy(all)

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