Active magnetic field tuning for dispersion equalization of a mu

Details Active magnetic field tuning for dispersion equalization of a mu Active magnetic field tuning for dispersion equalization of a mu

1993-04-12

1994-12-20

Turner, Samuel A.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

G01C 1964

Patent

active

053749901

ABSTRACT:
Dispersion in a multi-oscillator cavity is equalized by processing information extracted from the laser beams within the cavity to generate an error signal representative of dispersion bias, and applying a bias control signal to the cavity in such a way as to null the error signal. The bias control signal is preferably a magnetic field applied to the gain medium of the cavity by passing a corresponding current through a coil surrounding the medium. In exemplary embodiments, the laser beams are modulated by modulating the applied magnetic field and/or the path length of the cavity.

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Chow, Weng W. et al., "Multioscillator Laser Gyros", IEEE Journal of Quantum Electronics, vol. QE-16, No. 9, Sep. 1980.

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