PLC-Based Polymer/Silica Hybrid Inverted Ridge LP[sub.11] Mode Rotator

The mode rotator is an important component in a PLC-based mode-division multiplexing (MDM) system, which is used to implement high-order modes with vertical intensity peaks, such as LP[sub.11b] mode conversions from LP[sub.11a] in PLC chips. In this paper, an LP[sub.11] mode rotator based on a polym...

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Bibliographic Details
Published in:Micromachines (Basel) 2024-06, Vol.15 (6)
Main Authors: Liang, Jiaqi, Zhang, Daming, Lv, Xinyu, Zeng, Guoyan, Cheng, Pai, Yin, Yuexin, Sun, Xiaoqiang, Wang, Fei
Format: Article
Language:English
Subjects:
Polymers
Silica
Waveguides
Online Access:Get full text
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Summary:The mode rotator is an important component in a PLC-based mode-division multiplexing (MDM) system, which is used to implement high-order modes with vertical intensity peaks, such as LP[sub.11b] mode conversions from LP[sub.11a] in PLC chips. In this paper, an LP[sub.11] mode rotator based on a polymer/silica hybrid inverted ridge waveguide is demonstrated. The proposed mode rotator is composed of an asymmetrical waveguide with a trench. According to the simulation results, the broadband conversion efficiency between the LP[sub.11a] and LP[sub.11b] modes is greater than 98.5%, covering the C-band after optimization. The highest mode conversion efficiency (MCE) is 99.2% at 1550 nm. The large fabrication tolerance of the proposed rotator enables its wide application in on-chip MDM systems.
ISSN:2072-666X
2072-666X
DOI:10.3390/mi15060792