30 October 2007 Planar waveguide spatial heterodyne spectrometer
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Proceedings Volume 6796, Photonics North 2007; 67963J (2007); doi: 10.1117/12.779056
Event: Photonics North 2007, 2007, Ottawa, Canada
Abstract
Design and simulations of a Fourier-transform planar waveguide spectrometer are presented in the context of space-born observations of water in the near infrared spectral region. Spatial heterodyning of an optical signal is realized by using arrayed waveguide structures which produce spectrally dependent interference fringes. The light spectrum is calculated using discrete spatial Fourier transformation of the fringes. The arrayed waveguides form a multi-aperture input which markedly increases the optical throughput (étendue) of the device compared to single-aperture spectrometers.
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Mirosław Florjańczyk, Pavel Cheben, Siegfried Janz, Alan Scott, Brian Solheim, Dan-Xia Xu, "Planar waveguide spatial heterodyne spectrometer", Proc. SPIE 6796, Photonics North 2007, 67963J (30 October 2007); doi: 10.1117/12.779056; https://doi.org/10.1117/12.779056
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KEYWORDS
Waveguides

Spectroscopy

Birefringence

Heterodyning

Glasses

Planar waveguides

Absorption

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