. "Proceedings of SPIE" . "Dvoumodov\u00E9 vl\u00E1knov\u011B optick\u00E9 senzory u\u017E\u00EDvaj\u00EDc\u00ED metodu spektr\u00E1ln\u00ED interferometrie v b\u00EDlem sv\u011Btle"@cs . "Two-mode fiber-optic sensors using a white-light spectral interferometric technique" . . . "Two-mode fiber-optic sensors using a white-light spectral interferometric technique"@en . "5952" . "Two-mode fiber-optic sensors using a white-light spectral interferometric technique" . . . "RIV/61989100:27350/05:00013335" . . . "We analyze theoretically fiber-optic sensor configurations working in the time domain or in the spectral domain and utilizing interference between two spatial or polarization modes. We show for example that a two-mode fiber interferometer in which the phase difference between the two modes is large and the intermodal group optical path difference (OPD) is zero at a specific wavelength of a light source of a short coherence length can be used without losing both time-domain and spectral-domain interference. Similarly, we analyze theoretically a tandem configuration of two interferometers with one of the interferometers as a receiving interferometer and the other one as a sensing two-mode fiber interferometer. We show that time-domain or spectral-domain interference lost due to the OPD between the two modes exceeding the coherence length can be restored in the configuration. We analyze both theoretically and experimentally a tandem configuration of the receiving interferometer and the sensing two-mode f" . "Ciprian, Dalibor" . "[10BDCA45489D]" . "US - Spojen\u00E9 st\u00E1ty americk\u00E9" . "Dvoumodov\u00E9 vl\u00E1knov\u011B optick\u00E9 senzory u\u017E\u00EDvaj\u00EDc\u00ED metodu spektr\u00E1ln\u00ED interferometrie v b\u00EDlem sv\u011Btle"@cs . . . "We analyze theoretically fiber-optic sensor configurations working in the time domain or in the spectral domain and utilizing interference between two spatial or polarization modes. We show for example that a two-mode fiber interferometer in which the phase difference between the two modes is large and the intermodal group optical path difference (OPD) is zero at a specific wavelength of a light source of a short coherence length can be used without losing both time-domain and spectral-domain interference. Similarly, we analyze theoretically a tandem configuration of two interferometers with one of the interferometers as a receiving interferometer and the other one as a sensing two-mode fiber interferometer. We show that time-domain or spectral-domain interference lost due to the OPD between the two modes exceeding the coherence length can be restored in the configuration. We analyze both theoretically and experimentally a tandem configuration of the receiving interferometer and the sensing two-mode f"@en . "547544" . "1" . . . "Dvoumodov\u00E9 vl\u00E1knov\u011B optick\u00E9 senzory u\u017E\u00EDvaj\u00EDc\u00ED metodu spektr\u00E1ln\u00ED interferometrie v b\u00EDlem sv\u011Btle"@cs . "27350" . "252-262" . . . "null ellipsometry; phase modulation; imperfect compensator; PEM"@en . "11"^^ . "Kn\u00FDblov\u00E1, Lenka" . . "3"^^ . "0277-786X" . "Hlubina, Petr" . "RIV/61989100:27350/05:00013335!RIV06-MSM-27350___" . . "P(GA202/03/0776), Z(MSM6198910016)" . "Two-mode fiber-optic sensors using a white-light spectral interferometric technique"@en . . . . . "2"^^ .