Twist in the center of the loop of Sagnac interferometer of optical fiber to determine the beat length

J. M. Estudillo-Ayala; A. Placencia-Villanueva; Roberto Rojas-Laguna; T. Toledo-Garcia; E. Alvarado-Mendez; Jose Amparo Andrade-Lucio; O. G. Ibarra-Manzano; Rene Jaime-Rivas; Maria de Jesus Estudillo-Ayala

doi:10.1117/12.591672

21 October 2004 Twist in the center of the loop of Sagnac interferometer of optical fiber to determine the beat length

J. M. Estudillo-Ayala, A. Placencia-Villanueva, Roberto Rojas-Laguna, T. Toledo-Garcia, E. Alvarado-Mendez, Jose Amparo Andrade-Lucio, O. G. Ibarra-Manzano, Rene Jaime-Rivas, Maria de Jesus Estudillo-Ayala

Author Affiliations +

Proceedings Volume 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications; (2004) https://doi.org/10.1117/12.591672
Event: 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, 2004, Porlamar, Venezuela

Abstract

In this work we showed an improvement in the method to measure low birefringence in optical fibers with the Sagnac interferometer published in paper previous in which the fiber twists in an end of the loop of the interferometer and the entrance of the light every time it is adjusted that twists the fiber. In this work we twist the fiber in the center of the loop of the Sagnac interferometer it is very simple and we don't need light polarization neither to adjust the axes in the entrance of the fiber. It can use for the mensuration a section of shorter fiber that a beat length. Some theoretical and experimental results are presented.

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J. M. Estudillo-Ayala, A. Placencia-Villanueva, Roberto Rojas-Laguna, T. Toledo-Garcia, E. Alvarado-Mendez, Jose Amparo Andrade-Lucio, O. G. Ibarra-Manzano, Rene Jaime-Rivas, and Maria de Jesus Estudillo-Ayala "Twist in the center of the loop of Sagnac interferometer of optical fiber to determine the beat length", Proc. SPIE 5622, 5th Iberoamerican Meeting on Optics and 8th Latin American Meeting on Optics, Lasers, and Their Applications, (21 October 2004); https://doi.org/10.1117/12.591672

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