Winding technique for decreasing the pump power requirement of a

Details Winding technique for decreasing the pump power requirement of a Winding technique for decreasing the pump power requirement of a

1993-02-26

1995-04-11

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1964

Patent

active

054063701

ABSTRACT:
A Brillouin fiber optic gyroscope has a cavity loop that includes a first length of optical fiber wound as a first number of turns in a first direction to provide a selected system response that includes the dynamic range of gyroscope rotation rate, the resolution of the gyroscope rotation rate measurement, the relative lock-in range and the relative Kerr-effect-induced beat-frequency bias. The cavity loop further includes a second length of optical fiber wound as a second number of turns in the same direction as the first number of turns and wound as a third number of turns in an opposite direction to the winding direction of the first and second number of turns. The effect of the second and third number of turns is to increase the overall length of the optical fiber in the cavity loop to reduce the pump power required to generate Brillouin laser light within the cavity loop without increasing the Sagnac effect within the cavity loop. Thus, the system response that includes the dynamic range of gyroscope rotation rate, the resolution of the gyroscope rotation rate measurement, the relative lock-in range and the relative Kerr-effect-induced beat-frequency bias of gyroscope rotation rate, is not substantially affected by the increased number of turns provided by the second length of optical fiber.

REFERENCES:
patent: 4530097 (1985-07-01), Stokes et al.
patent: 5074665 (1991-12-01), Huang et al.
P. Bayvel, et al., "Evaluation Of Performance Parameters Of Single-Mode All-Fiber Brillouin Ring Lasers", Optics Letters, vol. 14, No. 11, Jun. 1, 1989, pp. 581-583.
L. F. Stokes, et al., "All-Single-Mode Fiber Resonator", Optics Letters, vol. 7, No. 6, Jun. 1982, pp. 288-290.
L. F. Stokes, et al., "All-fiber Stimulated Brillouin Ring Laser With Submilliwatt Pump Threshold", Optics Letters, vol. 7, No. 10, Oct. 1982, pp. 509-511.
A. L. Schawlow, et al., "Infrared And Optical Masers", Physical Review, vol. 112, No. 6, Dec. 15, 1958, pp. 1940-1949.
F. Zarinetchi, et al., "Stimulated Brillouin Fiber-Optic Laser Gyroscope", Optics Letters, vol. 16, No. 4, Feb. 15, 1991, pp. 229.sub.]231.
W. W. Chow, et al., "The Ring Laser Gyro", Reviews of Modern Physics, vol. 57, No. 1, Jan. 1985, pp. 61-104.
E. J. Post, "Sagnac Effect", Reviews of Modern Physics, vol. 39, No. 2, Apr. 1967, pp. 475, 493.
P. J. Thomas, et al., "Possibility Of Using An Optical Fiber Brillouin Ring Laser For Inertial Sensing", Applied Optics, vol. 19, No. 12, Jun. 15, 1980, pp. 1906-1908.
W. Bernard, et al., "Fundamentals Of A Fiber Integrated Brillouin Ring Laser Gyro", Symposium Gyro Technology, Stuttgart, Germany, 1991, pp. 12.0-12.20.
P. K. Kadiwar, et al., "Optical Fiber Brillouin Ring Laser Gyroscope", Electronics Letters, vol. 25, No. 25, 7th Dec., 1989, pp. 1729-1731.

Affiliated with

Also associated with

Rating

Winding technique for decreasing the pump power requirement of a does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Winding technique for decreasing the pump power requirement of a, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Winding technique for decreasing the pump power requirement of a will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1542508