INCREASE OF THE LONG-TERM OPERATIONAL RELIABILITY OF A FIBRE OPTIC INTERFEROMETER BY PROTECTING THE LIGHT SOURCE

摘要

The invention relates to a method for increasing the long-term operational reliability of a fibre optic interferometer (1). The noise in the output signal of the detector of the interferometer (1) is adjusted to a desired value. The detector light power is readjusted by varying the current of the light source (2) of the interferometer (9) and by a change in the light source power resulting therefrom. Both the reliability of the interferometer (1) and the service life thereof can thus be increased.