Multipole magnetic geometry for a ring laser gyroscope

Details Multipole magnetic geometry for a ring laser gyroscope Multipole magnetic geometry for a ring laser gyroscope

1988-07-29

1995-11-21

Moskowitz, Nelson

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 94, 359281, 359283, G01C 1964, H01S 310

Patent

active

054692563

ABSTRACT:
Disclosed herein is a multi-pole magnetic geometry for a multi-oscillator ring laser gyroscope. Multi-pole magnetic geometry configurations are disclosed which are useful for providing Faraday rotation where the multi-oscillator uses a Faraday rotator and high magnetic field effect where the nature of the multi-oscillator ring laser gyroscope is of split gain configuration. The multi-post magnetic geometry includes a plurality of top or bottom loaded diametrically opposed north and south pole axially directed magnets which are positioned substantially transverse to the optical pathway but suitable for providing axially directed magnetic fields to portions of the optical pathway only where desired. The multi-pole magnetic geometry disclosed herein substantially produces a magnetic flux that is restricted in its position to localized portions of the optical pathway with low far field effects.

REFERENCES:
patent: 115018 (1887-10-01), Martin
patent: 4451811 (1984-05-01), Hoffman
patent: 4548501 (1985-10-01), Smith
"Compact and Highly Efficient Faraday Rotators Using Relatively Low VErdet Constant Faraday Materials" by Toshihiko Yoshino, Japanese Journal of Applied Physics vol. 19, No. 4, Apr., 1980 pp. 745-749.
"Single Crystal Growth & Magneto-Optical Properties of Bi, Al-Substituted Magnetic Garnets" By T. Tamaki, H. Kaneda, K. Tsushima, IEEE Translation Journal on Magnetics in Japan, vol. TJMJ-2, No. 1, Jan. 1987.
"A Compact, High-Performance Optical Isolator" by Kuniro Tsushima, JEE, Jan. 1984.
"Compact Optical Isolator for Near-Infrared Radiation" By Atsushi Shibukawa & Akinori Katsui, Electronics Letters vol. 13, No. 24, 24 Nov. 1977.
"Thin-film Waveguide Magneto-Optic Isolator", by R. Wolfe et al., Applied Physics Letters 46 (9), 1 May 1985.
"Applications of Magneto-Optics in Ring Laser Gyroscopes" by J. J. Krebs, et al., IEEE Transactions on Magnetics vol. Mag. 16, No. 5, Sep. 1980.
Yoshino, T., "Compact and Highly . . . Faraday materials"; Spn. S. Appl. Phys., vol. 19, #4, pp. 745-749, Sep. 1980; Abst. only provided.
Tamaki et al, "Magneto-optical . . . isolator"; 9th Annu. Mtg. of Mag. Soc. of Spn, Nov. 29, 1985, vol. TJMS-2, #1, pp. 89-90, Jan. 1987; abst. provided.
Tsushima, K. "A compact . . . Optical Isolator"; JEE, vol. 21, #205, pp. 78-80, Jan 1984; abst. provided.
Shibukawa et al, "Compact Optical Isolator . . . "; ElectronLett., vol. 13, #24, pp. 721-722, Nov. 24, 1977; abst provided.
Wolfe et al, "Thin-film waveguide magneto-optic isolator"; Appl. Phys. Lett., vol. 46, #9, pp. 817-819, May 1, 1985, abst. Provided.
Krebs et al., "Applications of . . . Laser Gyroscopes"; vol. MAG-16, #5, pp. 1179-1184, Sep. 1980; abst. Provided.

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