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Journal of the Optical Society of America B

Journal of the Optical Society of America B


  • Vol. 18, Iss. 4 — Apr. 1, 2001
  • pp: 444–456

Investigation of the beam dependence of a fiber-optic voltage sensor by use of a LiNbO3 crystal

Hidenobu Hamada  »View Author Affiliations

JOSA B, Vol. 18, Issue 4, pp. 444-456 (2001)

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To investigate the beam dependence of a fiber-optic voltage sensor by using a LiNbO3 crystal, I undertook a series of calculations of various beam conditions expressed as Gauss functions by using the plane-wave method, treating each linear electro-optic term as a perturbation of the birefringence of a uniaxial crystal caused by an off-axis beam. The approximation proved to be accurate to within 0.2%. I discovered that the performance of the sensor is closely dependent on the beam angle from the z axis and the beam angle on the xy plane but that its fabrication requires an impractical degree of control of the collimated beam. I also found the optimal uncollimated beam condition, which provides immunity to temperature changes and variations in the direction of the propagating beam, compensating for the temperature dependence of the quartz 1/4 wave plate. The experimental data support the simulated results.

© 2001 Optical Society of America

OCIS Codes
(060.2370) Fiber optics and optical communications : Fiber optics sensors
(230.2090) Optical devices : Electro-optical devices

Hidenobu Hamada, "Investigation of the beam dependence of a fiber-optic voltage sensor by use of a LiNbO3 crystal," J. Opt. Soc. Am. B 18, 444-456 (2001)

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