Spectral dynamics in broadband frequency combs with overlapping harmonics
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arXiv
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| Autores principales: | , , , , , , , , , , |
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| Formato: | Preprint |
| Publicado: |
2025
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| Materias: | |
| Acceso en línea: | |
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| _version_ | 1866909951347130368 |
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| author | Fan, Weichen Ayhan, Furkan Wildi, Thibault Volkov, Mikhail Seer, Ali Ludwig, Markus Voumard, Thibault Brodschelm, Andreas Brasch, Victor Villanueva, Guillermo L. Herr, Tobias |
| author_facet | Fan, Weichen Ayhan, Furkan Wildi, Thibault Volkov, Mikhail Seer, Ali Ludwig, Markus Voumard, Thibault Brodschelm, Andreas Brasch, Victor Villanueva, Guillermo L. Herr, Tobias |
| contents | Optical frequency combs and their spectra of evenly spaced discrete laser lines are essential to modern time and frequency metrology. Recent advances in integrated photonic waveguides enable efficient nonlinear broadening of an initially narrowband frequency comb to multi-octave bandwidth. Here, we study the nonlinear dynamics in the generation of such ultra-broadband spectra where different harmonics of the comb can overlap. We show that a set of interleaved combs with different offset frequencies extending across the entire spectrum can emerge, which transform into a single evenly spaced ultra-broadband frequency comb when the initial comb is offset-free. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_04468 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Spectral dynamics in broadband frequency combs with overlapping harmonics Fan, Weichen Ayhan, Furkan Wildi, Thibault Volkov, Mikhail Seer, Ali Ludwig, Markus Voumard, Thibault Brodschelm, Andreas Brasch, Victor Villanueva, Guillermo L. Herr, Tobias Optics Optical frequency combs and their spectra of evenly spaced discrete laser lines are essential to modern time and frequency metrology. Recent advances in integrated photonic waveguides enable efficient nonlinear broadening of an initially narrowband frequency comb to multi-octave bandwidth. Here, we study the nonlinear dynamics in the generation of such ultra-broadband spectra where different harmonics of the comb can overlap. We show that a set of interleaved combs with different offset frequencies extending across the entire spectrum can emerge, which transform into a single evenly spaced ultra-broadband frequency comb when the initial comb is offset-free. |
| title | Spectral dynamics in broadband frequency combs with overlapping harmonics |
| topic | Optics |
| url | https://arxiv.org/abs/2503.04468 |