Control of the laser frequency in the Virgo interferometer: Dynamic noise budgeting for controller optimization

• Published in: Astroparticle physics Vol. 164; p. 103028
• Main Authors: van Dael, Mathyn, Casanueva, Julia, Witvoet, Gert, Swinkels, Bas, Bersanetti, Diego, Pinto, Manuel, Ruggi, Paolo, Mantovani, Maddalena, de Rossi, Camilla, Spinicelli, Piernicola, Boldrini, Mattia, Oomen, Tom
• Format: Journal Article
• Language: English
• Published: Elsevier B.V 01.01.2025
• Subjects: Advanced Virgo Plus; Gravitational Waves; Laser frequency stabilization; Noise budget; Systematic control design; ℋ2 synthesis; Advanced Virgo Plus; Gravitational Waves; ℋ2 synthesis; Laser frequency stabilization; Systematic control design; Noise budget

This paper presents a framework for the derivation of a noise budget and the subsequent utilization in the optimization of the control design, using the laser frequency stabilization loop in the Virgo interferometer, which is a complex nested feedback system, as an experimental case study. First, th...