Design and development of Fabry-Perot based wavelength calibration system for PARAS-2 spectrograph

arXiv:2606.01769 · astro-ph.IM, astro-ph.EP · Submitted 2026-06-01 · Read on arXiv

Shubhendra Nath Das, Kapil Kumar Bharadwaj, Abhijit Chakraborty, Kevikumar A. Lad, Jajaendra Siva Seshu Vera Prasad Neelam, Rishikesh Sharma, Nikitha Jithendran, Vishal Joshi

astro-ph.IM, astro-ph.EP

Submitted: 2026-06-01

Comments: 27 pages, 19 figures

Journal ref: Journal of Astronomical Telescopes, Instruments, and Systems, Vol. 12, Issue 1, 015003 (Jan 2026)

DOI: 10.1117/1.JATIS.12.1.015003

Project page: https://www.newport.com/f/xenon-arc-lamps

License: http://arxiv.org/licenses/nonexclusive-distrib/1.0/

Terminology

• Calibration — 36× in this paper · explained in 7 episodes
• Core — 7× in this paper · explained in 2 episodes
• Alignment — 3× in this paper · explained in 1 episode
• Aperture — 2× in this paper · explained in 1 episode
• Instrumental Profile — 2× in this paper
• Physical Research Laboratory — 2× in this paper
• Corning Ultra Low Expansion — 1× in this paper
• I C Optical System — 1× in this paper
• Microlensing — 1× in this paper · explained in 2 episodes

Sources

• TOI-6038 A b: A dense sub-Saturn in the transition regime between the Neptunian ridge and savanna
• Broadband stability of the Habitable Zone Planet Finder Fabry-P'{e}rot etalon calibration system: evidence for chromatic variation
• A dual cavity Fabry-Perot device for high precision Doppler measurements in astronomy

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