Ultra-broadband polarization splitter based on graphene layer-filled dual-core photonic crystal fiber

• 来源期刊: 中国物理B（英文版）
• 关键词: polarization splitters graphene dual-core photonic crystal fiber
• 年，卷（期）: 2017,（12）
• 页码范围: 339-344
• 页数: 6页
• 语种: 英文
• DOI: 10.1088/1674-1056/26/12/124216

摘要

An ultra-broadband polarization splitter based on graphene layer-filled dual-core photonic crystal fiber (GDC-PCF) that can work in a wavelength range from 1120 nm to 1730 nm is proposed in this paper.Through optimizing fiber configuration,the polarization splitter has an extinction ratio of-56.3 dB at 1.55 μm with a fiber length of 4.8 mm.Compared with the photonic crystal fiber reported splitters,to our knowledge,the GDC-PCF splitter with the extinction ratio below-20 dB has a super wide bandwidth of 610 nm.Due to the excellent splitting characteristics,the GDC-PCF will be used in coherent optical communication systems in a wavelength range from infrared to mid-infraed.