Open AccessHighly efficient multi-channel drop filter in a two-dimensional hetero photonic crystal
Author(s) -
Hitomichi Takano,
Biao Song,
Tanemasa Asano,
Susumu Noda
Publication year - 2006
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.14.003491
Subject(s) - photonic crystal , optics , materials science , drop (telecommunication) , optical filter , wavelength , wavelength division multiplexing , filter (signal processing) , channel (broadcasting) , photonics , optoelectronics , physics , computer science , telecommunications , computer vision
An in-plane, multi-channel drop filter with high efficiency, in a two-dimensional photonic crystal (PC) slab, is experimentally demonstrated. Based on the concept of heterostructure photonic crystals proposed previously, the device consists of multiple simply connected, PC-based filter units, in which each unit has a structure proportional to an optimized basic unit and operates at a different wavelength. Four-channel drop operation was successfully obtained, with high efficiencies of almost 100%, and equal quality factors, across all channels.