Considerations in design of a multimode fiber-linked white light interferometer

Kenneth T. V. Grattan; Yanong N. Ning; Q. Wang; Yueai Liu; Andrew W. Palmer

doi:10.1117/12.198676

4 January 1995 Considerations in design of a multimode fiber-linked white light interferometer

Kenneth T. V. Grattan, Yanong N. Ning, Q. Wang, Yueai Liu, Andrew W. Palmer

Proceedings Volume 2349, Industrial Optical Sensors for Metrology and Inspection; (1995) https://doi.org/10.1117/12.198676
Event: Photonics for Industrial Applications, 1994, Boston, MA, United States

Abstract

When a low coherence light source is used in a multimode fiber linked interferometer, the level of the modal noise induced by the environmental perturbations on the fibers may be dramatically suppressed, provide the value of the coherence length, L_c, 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 fiber. In this work, the results of an experimental study on the relationship between the modal noise and the length and diameter of fiber, and the coherence length of the source used are presented, illustrating the major considerations for the use of multimode fiber in a white light interferometer.

Citation Download Citation

Kenneth T. V. Grattan, Yanong N. Ning, Q. Wang, Yueai Liu, and Andrew W. Palmer "Considerations in design of a multimode fiber-linked white light interferometer", Proc. SPIE 2349, Industrial Optical Sensors for Metrology and Inspection, (4 January 1995); https://doi.org/10.1117/12.198676

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