Circulators for Optical Radar Systems
Applied Optics, Vol. 4, Issue 7, pp. 867-873 (1965)
http://dx.doi.org/10.1364/AO.4.000867
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Abstract
An optical isolator is discussed which is suitable for use in high-gain optical isolators. After a brief discussion of the necessary properties of such an isolator, a particular design is discussed. Measurements on a breadboard model using a He-Ne laser operating at 6328 Å indicate an isolation greater than 40 dB and insertion loss of 27% (1.1 dB). The model discussed uses the Faraday rotation principle in flint glass in a Lummer-Gehrcke configuration. Modification of this model to other wavelengths is discussed.
Citation
Paul C. Fletcher and David L. Weisman, "Circulators for Optical Radar Systems," Appl. Opt. 4, 867-873 (1965)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-4-7-867
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