Study of a narrowband reflection filter with multi-channels

• 来源期刊: 中国光学快报(英文版)
• 学科: 物理学
• 关键词: 窄带滤波器 反射滤波器 渠道 FWHM 分布规律 光通信 金属层 电介质
• 年，卷（期）: 2010,（11）
• 页码范围: 1102-1105
• 页数: 4页
• 分类号: O441.1 TN713
• 语种: 英文

摘要

Reflection filters have various applications in optical communication and other systems.In this letter,we propose a narrowband high-reflection filter composed of dielectric and metallic layers,in which an optimized filter combined with an admittance-matching layer with broad stop band is achieved.The structure can be expressed as Sub | (HL)13H2L(HL)313Cr0.84H | air,with full-width at half-maximum (FWHM) bandwidth of 2.5 nm.Based on this structure,reflection filters with multi-peaks are presented,and the law of distribution of peak positions is drawn.