期刊
OPTICAL AND QUANTUM ELECTRONICS
卷 44, 期 12-13, 页码 549-556出版社
SPRINGER
DOI: 10.1007/s11082-012-9596-6
关键词
Spectrometers and spectroscopic instrumentation; Planar waveguides; Fourier transform spectroscopy
资金
- Canadian Space Agency
- COM DEV International Ltd.
- National Research Council of Canada
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 (,tendue) 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.
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