METHOD FOR REDUCING THE KERR EFFECT IN AN INTERFEROMETRY MEASURING DEVICE, AND INTERFEROMETRY MEASURING DEVICE CONFIGURED TO IMPLEMENT THIS METHOD
Disclosed is a method for reducing the Kerr effect in an interferometry measuring device including a generator configured to emit an input periodic light signal, and a Sagnac interferometer in which two counterpropagating signals travel and combine so as to form a periodic output signal having at le...
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| creator | DUCLOUX, Eric LHOMME, Louis GROSSARD, Nicolas HAUDEN, Jérôme |
| description | Disclosed is a method for reducing the Kerr effect in an interferometry measuring device including a generator configured to emit an input periodic light signal, and a Sagnac interferometer in which two counterpropagating signals travel and combine so as to form a periodic output signal having at least two power values, the method including: determining a phase shift between the two counterpropagating signals a first time, and cancelling out the phase shift; and then determining a phase shift between the two counterpropagating signals a second time; and adjusting the ratio between the average powers of the counterpropagating signals so as to cancel out the value of the phase shift determined in the second determination. Also disclosed is an interferometry measuring device configured to implement such method. |
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Also disclosed is an interferometry measuring device configured to implement such method.</abstract><oa>free_for_read</oa></addata></record> |
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| subjects | GYROSCOPIC INSTRUMENTS MEASURING MEASURING DISTANCES, LEVELS OR BEARINGS NAVIGATION PHOTOGRAMMETRY OR VIDEOGRAMMETRY PHYSICS SURVEYING TESTING |
| title | METHOD FOR REDUCING THE KERR EFFECT IN AN INTERFEROMETRY MEASURING DEVICE, AND INTERFEROMETRY MEASURING DEVICE CONFIGURED TO IMPLEMENT THIS METHOD |
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