Broadband and low confinement loss photonic crystal fibers supporting 48 orbital angular momentum modes

Yan Qin; Ping Jiang; Huajun Yang; Ye Niu; Fengji Gui

doi:10.1117/12.2521825

24 January 2019 Broadband and low confinement loss photonic crystal fibers supporting 48 orbital angular momentum modes

Yan Qin, Ping Jiang, Huajun Yang, Ye Niu, Fengji Gui

Proceedings Volume 11052, Third International Conference on Photonics and Optical Engineering; 110520S (2019) https://doi.org/10.1117/12.2521825
Event: The International Conference on Photonics and Optical Engineering, 2018, Xi'an, China

Abstract

We propose a hollow-core photonic bandgap fiber (HC-PBGF) with background composed of two materials to support orbital angular momentum (OAM) modes. Numerical models are set up to figure out the effective indexes and confinement losses over 1.3-2.0 μm. Simulation results show that this fiber can support more than 48 OAM modes, of which the effective indexes satisfy the condition for effective index separation (<10-4) and the confinement loss keeps under 10^-7 dB/m over 1.3-2.0 μm. According to the comparison between fibers with same structure but comprising one or two background materials, adopting two materials to compose background is an effective method to significantly improve the performance of OAM-supporting HC-PBGF. The HC-PBGF proposed here is competitive in dealing for OAM multiplexing for optical communication systems.

Citation Download Citation

Yan Qin, Ping Jiang, Huajun Yang, Ye Niu, and Fengji Gui "Broadband and low confinement loss photonic crystal fibers supporting 48 orbital angular momentum modes", Proc. SPIE 11052, Third International Conference on Photonics and Optical Engineering, 110520S (24 January 2019); https://doi.org/10.1117/12.2521825

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