Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1994-02-15
1995-09-26
Turner, Samuel A.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
372 6, 372 94, G01C 1972
Patent
active
054538360
ABSTRACT:
A mode locked fiber laser gyroscope using a rare-earth doped fiber. The mode locked fiber laser gyroscope comprises a fiber amplifying unit, a dichroic mirror connected to one end of the fiber amplifying unit, and a fiber rotation sensing unit connected to the other end of the fiber amplifying unit in order to generate a signal in accordance with rotation of the laser gyroscope. The rare-earth doped fiber constitutes the fiber amplifying unit and is connected at one end thereof to the dichroic mirror and applied with the light of a pumping light source through the dichroic mirror. The other end of the rare-earth doped fiber is connected to the fiber rotation sensing unit. In the mode locked fiber laser gyroscope of this invention, the measurement of a rotation rate from a detect signal of a photo detector does not require a complex signal processing but is directly achieved by a time axis.
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Jeon Min Y.
Jeong Ho J.
Kim Byoung Y.
Agency for Defense Development
Turner Samuel A.
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