Achievements of picometer performance from interferometer spectral calibration development unit (SCDU)

Tsae-Pyng Janice Shen; ChengXing Zhai; Xin An; Hong Tang; George Sun; Richard T. Demers

doi:10.1117/12.790586

28 July 2008 Achievements of picometer performance from interferometer spectral calibration development unit (SCDU)

Tsae-Pyng Janice Shen, ChengXing Zhai, Xin An, Hong Tang, George Sun, Richard T. Demers

Proceedings Volume 7013, Optical and Infrared Interferometry; 701350 (2008) https://doi.org/10.1117/12.790586
Event: SPIE Astronomical Telescopes + Instrumentation, 2008, Marseille, France

Abstract

This paper will present the analysis results taken from a well-designed interferometer SCDU. The objective is to deliver picometer performance to meet the allocated astrometric error budget from SIM PlanetQuest mission. It will describe the validation of optical designs and analysis procedures to achieve high accuracy of the tip-tilt and shear alignments. Then it will enumerate environmental factors essential to the SCDU performances. Finally it will report color-independent 3 picometer Narrow Angle (NA) performance and all-in-one 17 picometer NA performance. The all-in-one pico-performance will require spectral calibration modeling to remove delay differential induced by color.

Citation Download Citation

Tsae-Pyng Janice Shen, ChengXing Zhai, Xin An, Hong Tang, George Sun, and Richard T. Demers "Achievements of picometer performance from interferometer spectral calibration development unit (SCDU)", Proc. SPIE 7013, Optical and Infrared Interferometry, 701350 (28 July 2008); https://doi.org/10.1117/12.790586

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