Study on mode degeneracy in weakly guiding step index fiber

Kai Han; Wenda Cui; Xiaoming Xi; Zhihong Li

doi:10.3788/IRLA202049.0405001

Journals >Infrared and Laser Engineering >Volume 49 >Issue 4 >Page 0405001 > Article

Infrared and Laser Engineering
Vol. 49, Issue 4, 0405001 (2020)

Study on mode degeneracy in weakly guiding step index fiber

Kai Han, Wenda Cui^*, Xiaoming Xi, and Zhihong Li

Author Affiliations

College of Advanced Interdisciplinary Studies, National University of Defense Technology, Changsha 410072, China

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DOI: 10.3788/IRLA202049.0405001 Cite this Article

Kai Han, Wenda Cui, Xiaoming Xi, Zhihong Li. Study on mode degeneracy in weakly guiding step index fiber[J]. Infrared and Laser Engineering, 2020, 49(4): 0405001 Copy Citation Text

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Fig. 1. Solution procedure of light field mode in fiber

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Fig. 2. Vector mode intensity distribution in the classic step index fiber

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Fig. 3. Lingearly polarized mode intensity distribution in the classic step index fiber

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Vevctor modes	β/m⁻¹	Linearly polarized modes	β/m⁻¹
HE11	8 569 293	LP01	8 569 293
TE01	8 568 310	LP11	8568310
HE21	8 568 310
TM01	8 568 310
EH11	8 567 033	LP21	8 567 039
HE31	8 567 033	LP21	8 567 039
HE12	8 566 606	LP02	8 566 608
EH21	8 565 493	LP31	8 565 502
HE41	8 565 493	LP31	8 565 502
TE02	8 564 673	LP12	8 564 687
HE22	8 564 672
TM02	8 564 672
EH31	856 3724	LP41	8 563 745
HE51	8 563 723	LP41	8 563 745

Table 1. Propagation constants of vector modes and linearly polarized modes

Kai Han, Wenda Cui, Xiaoming Xi, Zhihong Li. Study on mode degeneracy in weakly guiding step index fiber[J]. Infrared and Laser Engineering, 2020, 49(4): 0405001

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