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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Vol. 28, Iss. 18 — Sep. 15, 1989
  • pp: 3796–3799

High stability configuration for an acoustooptic heterodyne rf spectrum analyzer using slow shear TeO2

John N. Lee, R. Bernard Brown, and Alan E. Craig  »View Author Affiliations


Applied Optics, Vol. 28, Issue 18, pp. 3796-3799 (1989)
http://dx.doi.org/10.1364/AO.28.003796


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Abstract

A triangular, common-path interferometric rf spectrum analyzer arrangement has been demonstrated which has the property of high immunity to ambient vibration. Calculations show the TCPI arrangement, with two counter-propagating laser beams, is highly angle compensated and alignment stable when components are disturbed in position or orientation. Proper light polarization and Bragg cell geometry allows one Bragg cell to diffract primarily the clockwise beam and the other Bragg cell the counterclockwise beam. A birefringent quartz wedge shifts the heterodyne signal to a nonzero IF carrier frequency. Measured ambient phase noise is less than two degrees and calculated values indicate that further improvement may be possible.

© 1989 Optical Society of America

History
Original Manuscript: April 20, 1989
Published: September 15, 1989

Citation
John N. Lee, R. Bernard Brown, and Alan E. Craig, "High stability configuration for an acoustooptic heterodyne rf spectrum analyzer using slow shear TeO2," Appl. Opt. 28, 3796-3799 (1989)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-28-18-3796

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