Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics
Nonlinear optics is the precursor for many of the modern-day applications of photonics, including femtosecond pulse synthesis, precision spectroscopy, and metrology. In the last decade, nanophotonic waveguides have not only boosted the efficiencies of nonlinear effects but also unlocked new degrees...
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| Format: | Article |
| Language: | English |
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AIP Publishing LLC
2025-01-01
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| Series: | APL Photonics |
| Online Access: | http://dx.doi.org/10.1063/5.0227255 |
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| author | Furkan Ayhan Markus Ludwig Tobias Herr Victor Brasch Luis Guillermo Villanueva |
| author_facet | Furkan Ayhan Markus Ludwig Tobias Herr Victor Brasch Luis Guillermo Villanueva |
| author_sort | Furkan Ayhan |
| collection | DOAJ |
| description | Nonlinear optics is the precursor for many of the modern-day applications of photonics, including femtosecond pulse synthesis, precision spectroscopy, and metrology. In the last decade, nanophotonic waveguides have not only boosted the efficiencies of nonlinear effects but also unlocked new degrees of freedom in the design process and enabled the monolithic integration of multiple nonlinear devices. Now, the advent of thin-film variants of platforms with a strong second-order nonlinearity such as lithium niobate-on-insulator (LNOI) enables entirely new applications while further improving efficiency for the existing ones. However, suitable fabrication processes are needed to exploit the full potential of these new platforms. Here, we introduce a process for fabricating high-confinement lithium niobate waveguides with periodic poling. Our waveguide designs enable both third-order nonlinear χ(3) broadening and sum frequency generation (SFG) up to the fourth harmonic through a quasi-phase-matched χ(2) section. In supercontinuum (SC) experiments, our devices produce multi-octave SC spectra when pumped with an 80 fs mode-locked laser at 1560 nm. |
| format | Article |
| id | doaj-art-ce9c24828a52453b8b3357e1df065da8 |
| institution | Kabale University |
| issn | 2378-0967 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | AIP Publishing LLC |
| record_format | Article |
| series | APL Photonics |
| spelling | doaj-art-ce9c24828a52453b8b3357e1df065da82025-02-03T16:36:22ZengAIP Publishing LLCAPL Photonics2378-09672025-01-01101016118016118-1010.1063/5.0227255Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonicsFurkan Ayhan0Markus Ludwig1Tobias Herr2Victor Brasch3Luis Guillermo Villanueva4École Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, SwitzerlandDeutsches Elektronen-Synchrotron DESY, 22607 Hamburg, GermanyDeutsches Elektronen-Synchrotron DESY, 22607 Hamburg, GermanyQ.ANT GmbH, 70565 Stuttgart, GermanyÉcole Polytechnique Fédérale de Lausanne (EPFL), 1015 Lausanne, SwitzerlandNonlinear optics is the precursor for many of the modern-day applications of photonics, including femtosecond pulse synthesis, precision spectroscopy, and metrology. In the last decade, nanophotonic waveguides have not only boosted the efficiencies of nonlinear effects but also unlocked new degrees of freedom in the design process and enabled the monolithic integration of multiple nonlinear devices. Now, the advent of thin-film variants of platforms with a strong second-order nonlinearity such as lithium niobate-on-insulator (LNOI) enables entirely new applications while further improving efficiency for the existing ones. However, suitable fabrication processes are needed to exploit the full potential of these new platforms. Here, we introduce a process for fabricating high-confinement lithium niobate waveguides with periodic poling. Our waveguide designs enable both third-order nonlinear χ(3) broadening and sum frequency generation (SFG) up to the fourth harmonic through a quasi-phase-matched χ(2) section. In supercontinuum (SC) experiments, our devices produce multi-octave SC spectra when pumped with an 80 fs mode-locked laser at 1560 nm.http://dx.doi.org/10.1063/5.0227255 |
| spellingShingle | Furkan Ayhan Markus Ludwig Tobias Herr Victor Brasch Luis Guillermo Villanueva Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics APL Photonics |
| title | Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics |
| title_full | Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics |
| title_fullStr | Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics |
| title_full_unstemmed | Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics |
| title_short | Fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics |
| title_sort | fabrication of periodically poled lithium niobate waveguides for broadband nonlinear photonics |
| url | http://dx.doi.org/10.1063/5.0227255 |
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