Interference contrast function in unbalanced fibre optic Michelson interferometer [distributed fibre sensor]

This paper presents influences of changing spectral parameters of radiation source on the course of interference contrast function of unbalanced Michelson interferometer. This function is according to difference change of arm length L. The analysis was presented for changes of wavelength /spl lambda/, half width of spectral line /spl Delta//spl lambda/ and distance between spectral main line and spectral side line /spl beta/ in the radiation spectrum of a semiconductor laser.