Document Type

Article

Rights

This item is available under a Creative Commons License for non-commercial use only

Disciplines

Electrical and electronic engineering, Communication engineering and systems

Publication Details

Journal of the Optical Society of America B, Vol.28, 5, 2011, pp. 1180-1186

http://dx.doi.org/10.1364/JOSAB.28.001180

Abstract

All-fiber in-line single-mode–multimode–single-mode (SMS) and single-mode–tapered-multimode–single-mode (STMS) fiber structures are investigated. A wide-angle beam propagation method in cylindrical coordinates is developed and employed for numerical simulations of the light propagation performance of such fiber devices. The effect of strong mode interference on the performance of the devices is studied and verified numerically; results indicate that the proposed STMS structure can be exploited for measuring a broad refractive index range with reasonable high resolution, compared with the conventional SMS structure.

DOI

10.1364/JOSAB.28.001180

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