Conditions for suppressing modal noise induced in a white light interferometer

Yanong N. Ning; Yueai Liu; B. M. Azizur Rahman; Kenneth T. V. Grattan; Andrew W. Palmer

doi:10.1117/12.184994

14 September 1994 Conditions for suppressing modal noise induced in a white light interferometer

Yanong N. Ning, Yueai Liu, B. M. Azizur Rahman, Kenneth T. V. Grattan, Andrew W. Palmer

Proceedings Volume 2360, Tenth International Conference on Optical Fibre Sensors; (1994) https://doi.org/10.1117/12.184994
Event: 10th Optical Fibre Sensors Conference, 1994, Glasgow, United Kingdom

Abstract

When a low coherence light source is used in a multimode fibre linked interferometer, the level of the modal noise [1] induced by the environmental variations on the fibres may be dramatically suppressed, provided the value of the coherence length, Lc, of the light source employed is less than that of the optical path differences (OPD) between the guided modes at the far end of the fibre [2, 3].

Citation Download Citation

Yanong N. Ning, Yueai Liu, B. M. Azizur Rahman, Kenneth T. V. Grattan, and Andrew W. Palmer "Conditions for suppressing modal noise induced in a white light interferometer", Proc. SPIE 2360, Tenth International Conference on Optical Fibre Sensors, (14 September 1994); https://doi.org/10.1117/12.184994

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