Analysis of a dual etalon Fabry Perot cavity for application in a geostationary coastal water imager

Daniela Viviana Vladutescu; Fred Moshary; Barry Gross; Samir Ahmed

doi:10.1117/12.629173

21 October 2005 Analysis of a dual etalon Fabry Perot cavity for application in a geostationary coastal water imager

Daniela Viviana Vladutescu, Fred Moshary, Barry Gross, Samir Ahmed

Proceedings Volume 5978, Sensors, Systems, and Next-Generation Satellites IX; 597820 (2005) https://doi.org/10.1117/12.629173
Event: SPIE Remote Sensing, 2005, Bruges, Belgium

Abstract

High spatial-spectral resolution space based observations in visible-near infrared VNIR portion of the spectrum are required for a variety of remote sensing applications including ocean color, land surface classification, and atmospheric monitoring. In conventional approaches, the spectral selectivity is accomplished by means of interferometry, a series of pass-band filters (channels), or grating based spectrometers selectively designed to cover the spetral domain of interest for a given application. Unfortunately, these schemes are not able to modify the spectral channels for different applications as may be required for an all purpose imager. To accomplish tunability, we examine the feasibility of using Fabry Perot technology and show that by using a dual etalon system, we can achieve sufficient sensitivity and spectral filtration for ocean color observations which are the most difficult radiometrically. System specifications are oultlined and signal to noise ratio (SNR) estimates are developed as a function of the pixel-pixel integration time. Finally, the effects of out of band signals are considered and it is shown that a signal inversion scheme can be used for accurate retrieval of signals.

Citation Download Citation

Daniela Viviana Vladutescu, Fred Moshary, Barry Gross, and Samir Ahmed "Analysis of a dual etalon Fabry Perot cavity for application in a geostationary coastal water imager", Proc. SPIE 5978, Sensors, Systems, and Next-Generation Satellites IX, 597820 (21 October 2005); https://doi.org/10.1117/12.629173

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