All-optical noise-subtraction scheme for a fiber-optic gyroscope

Pavel G Polynkin, Josiel De Arruda, James Blake

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

A new intensity-noise-subtraction scheme for an interferometric fiber-optic gyroscope is demonstrated. Together with the light circulating through the gyro coil, an appropriately attenuated light beam from the source coupler dead end of the gyro is directed to the gyro photodetector. When the gyro is unmodulated, or modulated with a square wave at the proper frequency, the intensity noises of the two beams bear opposite phases and interfere destructively on the detector. For an unmodulated gyro, we demonstrate an intensity noise-reduction factor of ∼35, and for the same gyro modulated with a square wave at the proper frequency, we demonstrate a reduction factor of ∼15.

Original languageEnglish (US)
Pages (from-to)147-149
Number of pages3
JournalOptics Letters
Volume25
Issue number3
StatePublished - Feb 1 2000
Externally publishedYes

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square waves
noise intensity
gyroscopes
subtraction
fiber optics
bears
noise reduction
light beams
couplers
photometers
coils
detectors

ASJC Scopus subject areas

  • Atomic and Molecular Physics, and Optics

Cite this

All-optical noise-subtraction scheme for a fiber-optic gyroscope. / Polynkin, Pavel G; De Arruda, Josiel; Blake, James.

In: Optics Letters, Vol. 25, No. 3, 01.02.2000, p. 147-149.

Research output: Contribution to journalArticle

Polynkin, PG, De Arruda, J & Blake, J 2000, 'All-optical noise-subtraction scheme for a fiber-optic gyroscope', Optics Letters, vol. 25, no. 3, pp. 147-149.
Polynkin, Pavel G ; De Arruda, Josiel ; Blake, James. / All-optical noise-subtraction scheme for a fiber-optic gyroscope. In: Optics Letters. 2000 ; Vol. 25, No. 3. pp. 147-149.
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