Lasing on hybridized soliton frequency combs
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arXiv
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| Format: | Preprint |
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2024
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| author | Letsou, Theodore P. Kazakov, Dmitry Ratra, Pawan Columbo, Lorenzo L. Brambilla, Massimo Prati, Franco Rimoldi, Cristina Cin, Sandro Dal Opačak, Nikola Everitt, Henry O. Piccardo, Marco Schwarz, Benedikt Capasso, Federico |
| author_facet | Letsou, Theodore P. Kazakov, Dmitry Ratra, Pawan Columbo, Lorenzo L. Brambilla, Massimo Prati, Franco Rimoldi, Cristina Cin, Sandro Dal Opačak, Nikola Everitt, Henry O. Piccardo, Marco Schwarz, Benedikt Capasso, Federico |
| contents | Coupling is an essential mechanism that drives complexity in natural systems, transforming single, non-interacting elements into intricate networks with rich physical properties. Here, we demonstrate a chip-scale coupled laser system that exhibits complex optical states impossible to achieve in an uncoupled system. We show that a pair of coupled semiconductor ring lasers spontaneously forms a frequency comb consisting of the hybridized modes of its coupled cavity, exhibiting a large number of phase-locked tones that anticross with one another. Experimental coherent waveform reconstruction reveals that the hybridized frequency comb manifests itself as pairs of bright and dark picosecond-long solitons circulating simultaneously. The dark and bright solitons exit the coupled cavity at the same time, leading to breathing bright solitons temporally overlapped with their dark soliton counterparts - a state inaccessible for a single, free-running laser. Our results demonstrate that the rules that govern allowable states of light can be broken by simply coupling elements together, paving the way for the design of more complex networks of coupled on-chip lasers. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2408_09284 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Lasing on hybridized soliton frequency combs Letsou, Theodore P. Kazakov, Dmitry Ratra, Pawan Columbo, Lorenzo L. Brambilla, Massimo Prati, Franco Rimoldi, Cristina Cin, Sandro Dal Opačak, Nikola Everitt, Henry O. Piccardo, Marco Schwarz, Benedikt Capasso, Federico Optics Coupling is an essential mechanism that drives complexity in natural systems, transforming single, non-interacting elements into intricate networks with rich physical properties. Here, we demonstrate a chip-scale coupled laser system that exhibits complex optical states impossible to achieve in an uncoupled system. We show that a pair of coupled semiconductor ring lasers spontaneously forms a frequency comb consisting of the hybridized modes of its coupled cavity, exhibiting a large number of phase-locked tones that anticross with one another. Experimental coherent waveform reconstruction reveals that the hybridized frequency comb manifests itself as pairs of bright and dark picosecond-long solitons circulating simultaneously. The dark and bright solitons exit the coupled cavity at the same time, leading to breathing bright solitons temporally overlapped with their dark soliton counterparts - a state inaccessible for a single, free-running laser. Our results demonstrate that the rules that govern allowable states of light can be broken by simply coupling elements together, paving the way for the design of more complex networks of coupled on-chip lasers. |
| title | Lasing on hybridized soliton frequency combs |
| topic | Optics |
| url | https://arxiv.org/abs/2408.09284 |