Thesis: Active phase stabilization of a distance-scalable fiber-optic interferometer
| dc.contributor.correferente | Peña, Cristián | |
| dc.contributor.department | Departamento de Física | |
| dc.contributor.guia | Brooks, William | |
| dc.coverage.spatial | Campus Casa Central Valparaíso | |
| dc.creator | Muñoz Barros, Yerko Agustín | |
| dc.date.accessioned | 2026-03-24T16:56:00Z | |
| dc.date.available | 2026-03-24T16:56:00Z | |
| dc.date.issued | 2026-03-17 | |
| dc.description.abstract | We present the design and implementation of an active phase-stabilization system for adistance-scalable Mach-Zehnder interferometer aimed to incorporate a 10.8km underground optical fiber link at Fermilab. The system employs a coherent self-homodyne detection scheme with a 90-degree optical hybrid to generate In-phase (I) and Quadrature (Q) signals, which provides an error signal for a high-bandwidth feedback loop. A low-latency, Field-Programmable Gate Array (FPGA) controller executes a Proportional-Integral-Derivative (PID) control algorithm, applying real-time phase corrections via an Electro-Optic Modulator (EOM) to counteract environmental phase noise. We present a full characterization of the free-drifting phase noise and demonstrate a significant reduction, quantified by using its standard deviation and Power Spectral Densities (PSDs). The successful implementation of this feedback system is expected to achieve robust, long-term phase locking, establishing a stable interferometric platform for future quantum networking experiments and many other applications requiring precise phase control over long fiber links. | en_US |
| dc.description.degree | Magíster en Ciencias mención Física | |
| dc.description.program | Magíster en Ciencias mención Física | |
| dc.driver | info:eu-repo/semantics/masterThesis | |
| dc.format.extent | 58 páginas | |
| dc.identifier.barcode | MC_YM_2026 | |
| dc.identifier.doi | 10.71959/hmej-5110 | |
| dc.identifier.uri | https://cris.usm.cl/handle/123456789/4339 | |
| dc.identifier.uri | https://doi.org/10.71959/hmej-5110 | |
| dc.language.iso | en | |
| dc.publisher | Universidad Técnica Federico Santa María | |
| dc.rights | Attribution-NoDerivatives 4.0 International | en |
| dc.rights.uri | http://creativecommons.org/licenses/by-nd/4.0/ | |
| dc.subject | Phase stabilization | |
| dc.subject | FPGA | |
| dc.subject | Mach-Zehnder | |
| dc.subject | Optics | |
| dc.subject | Interferometer | |
| dc.subject | Homodyne | |
| dc.title | Active phase stabilization of a distance-scalable fiber-optic interferometer | |
| dc.type.driver | info:eu-repo/semantics/masterThesis | |
| dspace.entity.type | Tesis |
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