Arbitrary on-chip optical filter using complex waveguide Bragg gratings

Tiecheng Zhu

doi:10.1063/1.4943551

2016-03-09

PRE

DOI：10.1063/1.4943551

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摘要

En 中文

We demonstrate a Complex Waveguide Bragg Grating (CWBG) which can be designed to generate an arbitrary transmission spectrum. A comprehensive design method, based on the Layer Peeling/Adding algorithm, is developed to realize the grating on a silica-on-silicon platform. The CWBG has a simple one-layer waveguide structure for ease of fabrication. A spectral precision better than +/- 0.1 nm and a suppression ratio between 15 dB and 33 dB are achieved for a transmission spectrum consisting of 20 randomly distributed spectral notches with a 3 dB width of 0.3-0.4 nm. Among the CWBG's various potential applications, we highlight its use for eliminating OH emission lines from the Earth's atmosphere for ground-based astronomical observations. (C) 2016 AIP Publishing LLC.

Keyword:

VOLUME HOLOGRAPHY

OH SUPPRESSION

SKY

METAMATERIALS

FABRICATION

ALGORITHM

INSULATOR

DESIGN

INDEX

LINES

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期刊

Applied Physics Letters

IF:

3.6

论文数:

10.4W

被引数:

17.8W

机构

University System of Maryland

学者数:

6.5W

论文数: 5.6W

被引数: 113

引用论文

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