An interferometric technique for measuring the refractive index profile of a graded index optical fiber

Author

Das, Kamal K. ; Arif, Muhammad ; Haider, A. F M Yusuf ; Alam, Mohammad S.

Author_Institution

Center for Electro-optics, Dayton Univ., OH, USA

fYear

1994

fDate

23-27 May 1994

Firstpage

1111

Abstract

Precise measurement of refractive index profile of an optical fiber is crucial for the measurement of different characteristics, such as the signal bandwidth of the fiber. We present a simple and inexpensive method for mapping the refractive index profile of an optical fiber. This method uses an interferometric technique to map the refractive index profile of a fiber. Comparing the index profile simulated theoretically with the experimental one, the difference between the refractive index of clad and that at the center of core for a graded index fiber was found to be 0.018. This technique also enables one to determine whether the fiber is a step index fiber or a graded index fiber

Keywords

gradient index optics; light interferometry; optical fibre testing; refractive index measurement; graded index fiber; graded index optical fiber; interferometric technique; refractive index profile; signal bandwidth; Bandwidth; Interference; Optical fibers; Optical interferometry; Optical microscopy; Optical refraction; Optical variables control; Physics; Refractive index; Shape;

fLanguage

English

Publisher

ieee

Conference_Titel

Aerospace and Electronics Conference, 1994. NAECON 1994., Proceedings of the IEEE 1994 National

Conference_Location

Dayton, OH

Print_ISBN

0-7803-1893-5

Type

conf

DOI

10.1109/NAECON.1994.332918

Filename

332918