Voice transmission via frequency-modulated diode laser light

Seung Koo Lee, Deok In Kim, Gee Na Kim, Donghyun Cho

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

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
Volume74
Issue number11
DOIs
Publication statusPublished - 2006 Nov 1

Fingerprint

frequency modulation
telecommunication
modulators
semiconductor lasers
polarization modulation
acousto-optics
phase modulation
electro-optics
interferometers
laser beams
lasers

ASJC Scopus subject areas

  • Physics and Astronomy(all)

Cite this

Voice transmission via frequency-modulated diode laser light. / Lee, Seung Koo; Kim, Deok In; Kim, Gee Na; Cho, Donghyun.

In: American Journal of Physics, Vol. 74, No. 11, 01.11.2006, p. 1037-1039.

Research output: Contribution to journalArticle

Lee, Seung Koo ; Kim, Deok In ; Kim, Gee Na ; Cho, Donghyun. / Voice transmission via frequency-modulated diode laser light. In: American Journal of Physics. 2006 ; Vol. 74, No. 11. pp. 1037-1039.
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