Development of a calibrator based on Fabry-Pérot etalon for high resolution spectrograph

Jun Hao; Liang Tang; Huiqi Ye; Dong Xiao

doi:10.1117/12.2607080

24 November 2021 Development of a calibrator based on Fabry-Pérot etalon for high resolution spectrograph

Jun Hao, Liang Tang, Huiqi Ye, Dong Xiao

Proceedings Volume 12069, AOPC 2021: Novel Technologies and Instruments for Astronomical Multi-Band Observations; 120691F (2021) https://doi.org/10.1117/12.2607080
Event: Applied Optics and Photonics China 2021, 2021, Beijing, China

Abstract

The ﬁber-fed High Resolution Spectrograph of the Chinese Xinglong 2.16-m Telescope is the main instrument for high precision spectral detection in China. In order to improve the observation performance, a wavelength calibrator based on Fabry-P´erot etalon (FPE) is developed. Here, we report on the design, transmission charac-teristics and vacuum-thermostatic performance of the system. To meet the requirements of the calibration, the calibrator is custom-designed with the FPE gap of 5 mm, ﬁneness value of 40, and illuminating ﬁber of 100 μm in diameter, which could generate calibration lines with 30 GHz in lines space and covering 500 – 700 nm.

Citation Download Citation

Jun Hao, Liang Tang, Huiqi Ye, and Dong Xiao "Development of a calibrator based on Fabry-Pérot etalon for high resolution spectrograph", Proc. SPIE 12069, AOPC 2021: Novel Technologies and Instruments for Astronomical Multi-Band Observations, 120691F (24 November 2021); https://doi.org/10.1117/12.2607080

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