Doubly resonant single-layer bandpass optical filters

被引：89

作者：

Ding, Y ^{[1
]}

Magnusson, R ^{[1
]}

机构：

[1] Univ Connecticut, Dept Elect & Comp Engn, Storrs, CT 06268 USA

来源：

OPTICS LETTERS | 2004年 / 29卷 / 10期

关键词：

D O I：

10.1364/OL.29.001135

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A bandpass filter based on guided-mode resonance effects in a single-layer periodic waveguide is presented. Strong refractive-index modulation is used to support the excitation of a resonance pair in which leaky waveguide mode TE0 is excited by the second diffraction order and TE2 by the first diffraction order. It is shown that one resonance provides a broad low-transmission band, whereas the other supplies the transmission peak through its asymmetrical line shape. A bandpass filter with central wavelength at 1.55 mum is presented to demonstrate this concept. (C) 2004 Optical Society of America.

引用

页码：1135 / 1137

页数：3

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