A single-sideband optical balanced mixed

Details A single-sideband optical balanced mixed A single-sideband optical balanced mixed

Jun 1975

adsabs.harvard.edu/cgi-bin/nph-data_query?bibcode=1975optco..14..276d&link_type=abstract

Optics Communications, vol. 14, June 1975, p. 276-279. Research supported by the Nederlandse Organisatie voor Zuiver-Wetenschap

Physics

Optics

Helium-Neon Lasers, Mixing Circuits, Optical Heterodyning, Signal Mixing, Single Sideband Transmission, Frequency Control, Interferometers, Laser Modes, Mirrors, Mixers, Photodiodes, Tuning

Scientific paper

An optical single-sideband balanced mixer operating at 6328 A and based on the use of two balanced heterodyne mixers is described. The setup is essentially the heterodyne interferometer configuration of van de Stadt (1970), where the signal and local oscillator beams are combined on four photodiodes with four half-reflecting, half-transmitting mirrors. A tunable single-mode He-Ne laser is used as local oscillator, while a second He-Ne laser operating in three axial modes at 6328 A served as signal source. Typical sideband suppression was about 25 dB, and an optimal ratio of 54 dB was obtained.

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