Evolutionary optimization and long-term stabilization of a white-light seeded two-stage OPCPA seed laser
Ultrafast laser systems, such as optical parametric chirped pulse amplifiers (OPCPA), are complex tools. Optimizing laser performance for a given application is often plagued by intricate couplings between different output parameters, making simultaneous control of multiple pulse properties difficult. Here, we experimentally demonstrate an autonomous tuning procedure of a white-light seeded two-stage OPCPA using an evolutionary strategy to reliably reach an optimized working point. We use the data collected during the tuning procedure to calibrate a performance model of the laser system, which we then apply to stabilize the intricately coupled laser output energy and spectrum simultaneously. Our approach ensures reliable day-to-day operation at optimized working points without manual tuning. We demonstrate shot-to-shot energy stability of <0.18 % rms, in combination with <25 pm rms wavelength stability and <0.2 % rms bandwidth stability during multi-day operation.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2023 |
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| Erschienen: |
2023 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:31 |
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| Enthalten in: |
Optics express - 31(2023), 22 vom: 23. Okt., Seite 36915-36927 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Eichner, Timo [VerfasserIn] |
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| Links: |
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| Anmerkungen: |
Date Revised 29.11.2023 published: Print Citation Status PubMed-not-MEDLINE |
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| doi: |
10.1364/OE.504694 |
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| funding: |
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| Förderinstitution / Projekttitel: |
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NLM365089974 |
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| 520 | |a Ultrafast laser systems, such as optical parametric chirped pulse amplifiers (OPCPA), are complex tools. Optimizing laser performance for a given application is often plagued by intricate couplings between different output parameters, making simultaneous control of multiple pulse properties difficult. Here, we experimentally demonstrate an autonomous tuning procedure of a white-light seeded two-stage OPCPA using an evolutionary strategy to reliably reach an optimized working point. We use the data collected during the tuning procedure to calibrate a performance model of the laser system, which we then apply to stabilize the intricately coupled laser output energy and spectrum simultaneously. Our approach ensures reliable day-to-day operation at optimized working points without manual tuning. We demonstrate shot-to-shot energy stability of <0.18 % rms, in combination with <25 pm rms wavelength stability and <0.2 % rms bandwidth stability during multi-day operation | ||
| 650 | 4 | |a Journal Article | |
| 700 | 1 | |a Hülsenbusch, Thomas |e verfasserin |4 aut | |
| 700 | 1 | |a Palmer, Guido |e verfasserin |4 aut | |
| 700 | 1 | |a Maier, Andreas R |e verfasserin |4 aut | |
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