Thermally stable monolithic Doppler asymmetric spatial heterodyne interferometer: optical design and laboratory performance

Optics Express
Daikang WeiMartin Riese

Abstract

We report on a thermally stable monolithic Doppler asymmetric spatial heterodyne (DASH) interferometer with field-widening prisms for thermospheric wind measurements by observing the Doppler shift of the airglow emission. Analytical deduction and numerical simulation are applied to determine the central optical path difference, the thermal compensation condition and the field-widening design. A monolithic interferometer with optimized configuration was built and tested in the laboratory. Laboratory tests show that the best visibility of 0.94 was realized with the 9 ° field-of-view illumination, while the thermal responses of the spatial frequency and the optical phase offset are 0.0154 cm-1/°C and 0.469 rad/°C, respectively.

References

Mar 20, 2002·Applied Optics·John M HarlanderRobert R Conway
Jan 14, 2005·Applied Optics·Christoph R EnglertFred L Roesler
Jun 27, 2006·Applied Optics·Christoph R Englert, John M Harlander
Oct 13, 2007·Applied Optics·Christoph R EnglertJohn M Harlander
Jun 1, 1985·Applied Optics·G G ShepherdJ R Wimperis
Jun 1, 1985·Applied Optics·G Thuillier, G G Shepherd

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