Optical ring resonator sensor

Details Optical ring resonator sensor Optical ring resonator sensor

1992-03-05

1994-04-19

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, G01C 1972

Patent

active

053050878

ABSTRACT:
A sensor is to measure a physical quantity which causes a non-reciprocal effect, such as the Sagnac-effect, in an optical ring resonator. This effect provides a difference of clockwise and counter-clockwise optical path lengths in the ring resonator. The difference is proportional to the physical quantity, such as rotation rate in the case of the Sagnac-effect. A semiconductor laser is coupled to the ring resonator and generates clockwise and counter-clockwise beams therein. The laser frequency is modulated by directly energizing the semiconductor laser such that sidebands of the frequency-modulated laser beams are in resonance with the ring resonator. A detector device responds to the difference of the clockwise and counter-clockwise light beams and generates a signal indicative of the measured physical quantity.

REFERENCES:
patent: 5004342 (1991-04-01), Bernard et al.
"The Passive Resonator Fiber Optic Gyro and Comparison to the Interferometer Fiber Gyro", R. Carroll, C. D. Coccoli, D. Cardarelli, G. T. Coate, SPIE, 719, Fiber Optic Gyros: 10th Anniversary Conference (1986), 169-177.
"Modulatable narrow-linewidth semiconductor lasers", L. Hollberg and M. Ohtsu, Appl. Phys. Lett., 53, (1988), 944-946.
"Frequency Noise Analysis of Optically Self-Locked Diode Lasers", Ph. Laurent, A. Clairon and Ch. Breant, IEEE Journal of Quantum Electronics, 25, (1989), 1131-1142.
"Laser-frequency division and stabilization", R. G. DeVoe and R. G. Brewer, Physical Review A, 30, (1984), 2827-2829.
Fiber Optics Technology and Applications, Stewart D. Personick, Plenum Press, New York, 1985, p. 231.
Optical Fiber Sensors, A. N. Chester. S. Martellucci, A. M. Verga Scheggi, Martinus Nijhoff Publishers, Boston, 1987, p. 300.
Fibre Optic Systems, Pierre Halley, John Wiley & Sons, New York, 1987, p. 144-147.
Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel and H. J. Arditty (eds.), Springer-Verlag, New York, 1982, pp. 2-27.
Nonlinear Photonics, H. M. Gibbs, G. Khitrova, N. Peyghambarian (eds.), Springer-Verlag, New York, pp. 168-169.

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