光子晶体平板中的波导、谐振器及其耦合元件。

Waveguides, resonators and their coupled elements in photonic crystal slabs.

作者信息

Notomi M, Shinya A, Mitsugi S, Kuramochi E, Ryu H

出版信息

Opt Express. 2004 Apr 19;12(8):1551-61. doi: 10.1364/opex.12.001551.

DOI:10.1364/opex.12.001551

PMID:19474980

Abstract

The design, fabrication, and measurement of photonic-band-gap (PBG) waveguides, resonators and their coupled elements in two-dimensional photonic crystal (PhC) slabs have been investigated. We have studied various loss mechanisms in PBG waveguides and have achieved a very low propagation loss (~1 dB/mm). For these waveguides, we have observed a large group delay (>100 ps) by time-domain measurement. As regards PBG resonators, we realize very high-Q and small volume resonators in PhC slabs by appropriate design. Finally, we demonstrate various forms of coupled elements of waveguides and resonators: 2-port resonant-tunneling transmission devices, 4-port channel-drop devices using the slow light mode, and 3-port channel-drop devices using the resonant-tunneling process.

摘要

对二维光子晶体平板中的光子带隙（PBG）波导、谐振器及其耦合元件的设计、制造和测量进行了研究。我们研究了PBG波导中的各种损耗机制，并实现了非常低的传播损耗（约1 dB/mm）。对于这些波导，我们通过时域测量观察到了较大的群延迟（>100 ps）。关于PBG谐振器，我们通过适当设计在光子晶体平板中实现了非常高Q值和小体积的谐振器。最后，我们展示了波导和谐振器耦合元件的各种形式：两端口谐振隧穿传输器件、利用慢光模式的四端口信道下传器件以及利用谐振隧穿过程的三端口信道下传器件。