Abstract

We present a full-vectorial modal analysis of a segmented cladding fiber (SCF). The analysis is based on the $H$-field vectorial finite element method (VFEM) employing polar mesh geometry. Using this method, we have analyzed the circular SCF and the elliptical SCF. We have found that the birefringence of the circular SCF is very small ($1.0\times {10}^{-8}$). Birefringence of a highly elliptical SCF can be altered to some extent by the number of segments and duty cycle of segmentation in the segmented cladding. However, the change is not profound. The analysis shows that the circular SCF possesses low birefringence and that the segmented cladding does not add any significant birefringence in an elliptical fiber. This result strongly indicates that small deviations in the segmented cladding parameters arising from fabrication process do not significantly affect the birefringence of the fiber.

©2012 Optical Society of America

Analysis of segmented-cladding fiber by the radial-effective-index method

Vipul Rastogi and Kin Seng Chiang
J. Opt. Soc. Am. B 21(2) 258-265 (2004)

Detailed study of bending effects in large mode area segmented cladding fibers

Shaoshuo Ma, Tigang Ning, Jing Li, Li Pei, Chuanbiao Zhang, and Xiaodong Wen
Appl. Opt. 55(35) 9954-9960 (2016)

Birefringence in elliptically clad borosilicate single-mode fibers

V. Ramaswamy, R. H. Stolen, M. D. Divino, and W. Pleibel
Appl. Opt. 18(24) 4080-4084 (1979)

Propagation characteristics of a segmented cladding fiber

Vipul Rastogi and Kin Seng Chiang
Opt. Lett. 26(8) 491-493 (2001)

Birefringence measurement in double-clad fiber lasers with large cross section

A. R. Boyain y Goitia, A. N. Starodumov, D. Monzon-Hernandez, V. N. Filippov, and P. Gavrilovic
Appl. Opt. 39(14) 2259-2263 (2000)