Optics: measuring and testing – By dispersed light spectroscopy – Utilizing a spectrometer
Patent
1992-01-15
1994-02-22
Turner, Samuel A.
Optics: measuring and testing
By dispersed light spectroscopy
Utilizing a spectrometer
385 3, 359279, G01C 1972
Patent
active
052892581
ABSTRACT:
An error control arrangement for an optical fiber rotation sensor having electromagnetic waves propagating in opposite directions passing through a bias optical phase modulator operated by a phase modulation generator both of which can contribute second harmonic distortion resulting in errors in the sensor output signal which are controlled. Control of the bias optical phase modulator contribution for a modulator having a piezoelectric body wrapped with an optical fiber portion is accomplished by mounting the body utilizing layers having nonlinear stiffness.
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Ang Dick
August Richard J.
Blake James N.
Dimond Kevin B.
Feth John R.
Gebhardt Mark J.
Honeywell Inc.
Turner Samuel A.
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