Cladding shape fitting model for multi-core fibers using a Lamé curve
Year: 2025
Type: article
Abstract: Herein, we propose a measurement technique for modeling the cladding cross-section of multi-core fibers (MCFs) with a generalized ellipse (superellipse; Lamé curve). In contrast to conventional ellipse fitting, the Lamé curve model reproduces square-like non-circular claddings typical of many MCFs. Evaluation of several MCF cross-sectional images reveals that the proposed Lamé fitting reduces the root mean square residual by 39.6%, thereby improving geometric accuracy. This quantitative advantage indicates that Lamé curve fitting is valuable for defining cladding non-circularity and center location in MCF standardization and enhancing alignment precision in practical connector and splice applications.
Source: Optics Express
DOI: 10.1364/oe.576073
Authors: Shota Kajikawa, Takuya Oda, Katsuhiro Takenaga, Kentaro Ichii
Institution: Fujikura (Japan)
Language: English
Topic: Optical Network Technologies
Subfield: Electrical and Electronic Engineering
Field: Engineering
Domain: Physical Sciences
Open Access status: gold
Estimated APC paid: $2,270
OpenAlex ID: W4414400193