Characteristics of solid-core square-lattice microstructured optical fibers using an analytical field model. (1st November 2017)

• Record Type: Journal Article
• Authors: Sharma, Dinesh Kumar; Sharma, Anurag; Tripathi, Saurabh Mani
• Is Part Of: Optics & laser technology. Volume 96(2017)
• Page Start: 97
• Page End: 106
• Publication Date: 2017-11-01
• Subjects: Microstructured optical fibers -- Square-lattice -- Effective index -- Splice losses -- Far-field radiation pattern -- Group-velocity dispersion; Optics -- Periodicals; Lasers -- Periodicals; Electronic journals; 621.366
• DOI: 10.1016/j.optlastec.2017.05.009
• Languages: English
• ISSNs: 0030-3992

Abstract

Highlights: Analytical field model developed earlier is generalized, for square-lattice MOFs. Scalar variational approach is adopted to study propagation properties of MOFs. Evolution of the mode is investigated in transition from near-to-far-field domain. Splice losses between square-lattice MOF and conventional fiber is evaluated. Abstract: The excellent propagation properties of square-lattice microstructured optical fibers (MOFs) have been widely recognized. We generalized our recently developed analytical field model (Sharma and Sharma, 2016), for index-guiding MOFs with square-lattice of circular air-holes in the photonic crystal cladding. Using the field model, we have studied the propagation properties of the fundamental mode of index-guiding square-lattice MOFs with different hole-to-hole spacing and the air-hole diameter. Results for the modal effective index, near and the far-field patterns and the group-velocity dispersion have been included. The evolution of the mode shape has been investigated in transition from the near to the far-field domain. We have also studied the splice losses between two identical square-lattice MOFs and also between an MOF and a traditional step-index single-mode fiber. Comparisons with available numerical simulation results, e.g., those based on the full-vector finite element method have also been included.