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Proceedings Paper

Design and simulation of a semiconductor chip-based visible - NIR spectrometer for Earth observation
Author(s): J. Coote; E. Woolliams; N. Fox; I. D. Goodyer; S. J. Sweeney
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Paper Abstract

We present the development of a novel semiconductor chip-based spectrometer for calibration of Earth observation instruments. The chip follows the Solo spectroscopy approach utilising an array of microdisk resonators evanescently coupled to a central waveguide. Each resonator is tuned to select out a specific wavelength from the incoming spectrum, and forms a p-i-n junction in which current is generated when light of the correct wavelength is present. In this paper we discuss important design aspects including the choice of semiconductor material, design of semiconductor quantum well structures for optical absorption, and design and optimisation of the waveguide and resonators.

Paper Details

Date Published: 8 March 2014
PDF: 11 pages
Proc. SPIE 8988, Integrated Optics: Devices, Materials, and Technologies XVIII, 898819 (8 March 2014); doi: 10.1117/12.2040002
Show Author Affiliations
J. Coote, ZiNIR Ltd. (United Kingdom)
E. Woolliams, National Physical Lab. (United Kingdom)
N. Fox, National Physical Lab. (United Kingdom)
I. D. Goodyer, ZiNIR Ltd. (United Kingdom)
S. J. Sweeney, ZiNIR Ltd. (United Kingdom)

Published in SPIE Proceedings Vol. 8988:
Integrated Optics: Devices, Materials, and Technologies XVIII
Jean Emmanuel Broquin; Gualtiero Nunzi Conti, Editor(s)

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