Design and amplification performance analysis of Er3+-doped photonic crystal fiber carrying orbital angular momentum

Results in Physics

Haiying Zhao¹  Ruoyu Liang²  Lijuan Zhao³  Zhiniu Xu³ 

[1] Baoding Key Laboratory of Optical Fiber Sensing and Optical Communication Technology, North China Electric Power University, Baoding 071003, Hebei, China;Hebei Key Laboratory of Power Internet of Things Technology, North China Electric Power University, Baoding 071003, Hebei, China;School of Electrical and Electronic Engineering, North China Electric Power University, Baoding 071003, Hebei, China;

关键词: Photonic crystal fiber;    Orbital angular momentum;    Er3+-doped fiber;    Amplifier;   

DOI  :  

来源: DOAJ

【 摘 要 】

In order to reduce the loss of communication system based on orbital angular momentum (OAM), an Er3+-doped photonic crystal fiber (PCF) amplifier which can support amplification for 30 OAM modes is proposed. The structure of the PCF is optimized to obtain larger effective mode field area and effective refractive index difference. Then, the optimal PCF with a nonlinear coefficient lower than 0.002 m−1·W−1 is proposed, and it is used to setup an orbital angular momentum erbium-doped fiber amplifier (OAM-EDFA). Finally, an OAM-EDFA with a flat-high gain of about 28 dB, a DMG lower than 0.18 dB, and a NF no more than 4.4 dB is obtained. Compared with the existing OAM-EDFA, the gain of the proposed OAM-EDFA is increased by 6 dB. The OAM-EDFA based on the novel PCF designed in this work is of great interest to the OAM-based long-distance communication system.

【 授权许可】

Unknown