Coherent-feedback quantum control with a dynamic compensator

2008/03/13 by Hideo Mabuchi · 1 citation
Computer Science · Physics and Astronomy · #Advanced Fiber Laser Technologies #Laser-Matter Interactions and Applications #Quantum Information and Cryptography #quant-ph

paper · pdf · doi:10.1103/physreva.78.032323

4 pages, 4 EPS figures

arxiv created 2008/03/13 · openalex publication_date 2008/09/19 · arxiv updated 2009/12/01 · openalex created_date 2025/10/10 · openalex updated_date 2026/07/28

Abstract

I present an experimental realization of a coherent-feedback control system that was recently proposed for testing basic principles of linear quantum stochastic control theory [M. R. James, H. I. Nurdin, and I. R. Petersen, e-print arXiv:quant-ph/0703150v2, IEEE Transactions on Automatic Control (to be published)]. For a dynamical plant consisting of an optical ring resonator, I demonstrate \ensuremath∼7\phantom\rule0.3em0exdB broadband disturbance rejection of injected laser signals via all-optical feedback with a tailored dynamic compensator. Comparison of the results with a transfer function model pinpoints critical parameters that determine the coherent-feedback control system's performance.

Citations

• H-Infinity Control of Linear Quantum Stochastic Systems
• External optical feedback effects on semiconductor injection laser properties
• Optimal control of quantum-mechanical systems: Existence, numerical approximation, and applications
• Conversion of conventional gravitational-wave interferometers into quantum nondemolition interferometers by modifying their input and/or output optics

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