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Development of a Fourier-transform waveguide spectrometer for space applications
- Publication Year :
- 2012
-
Abstract
- We describe the development of a waveguide Fourier-transform spectrometer for space-borne high-resolution sensing. A prototype device is designed to monitor the water vapor absorption band near 1,364 nm with a resolution of 0.05 nm. It has no moving parts and is based on a unique concept of arrayed interferometers implemented in silicon-on-insulator planar waveguide chip. The optical input is formed by many independent waveguides, providing a significantly increased light gathering capability (etendue) compared to single-waveguide input configurations. Enhancements of the spectrometer capabilities are achieved by stacking planar waveguide layers and by using surface gratings to couple light into the waveguides.
- Subjects :
- spectrometers and spectroscopic instrumentation
Materials science
Spectrometer
Etendue
business.industry
planar waveguides
Physics::Optics
Fourier transform spectroscopy
Chip
Atomic and Molecular Physics, and Optics
Electronic, Optical and Magnetic Materials
law.invention
symbols.namesake
Optics
Fourier transform
Planar
law
symbols
Astronomical interferometer
Electrical and Electronic Engineering
business
Waveguide
Nonlinear Sciences::Pattern Formation and Solitons
Subjects
Details
- Language :
- English
- Database :
- OpenAIRE
- Accession number :
- edsair.doi.dedup.....c74ebf65e3b644d71e66480241c185f9