Temporal soliton generation in an ultra-high-effective-Q Kerr resonator enabled by Raman gain
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arXiv
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| Hauptverfasser: | , , , , |
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| Format: | Preprint |
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2026
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| _version_ | 1866915910300729344 |
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| author | Semaan, Georges Sun, Yifan Englebert, Nicolas Gorza, Simon-Pierre Leo, François |
| author_facet | Semaan, Georges Sun, Yifan Englebert, Nicolas Gorza, Simon-Pierre Leo, François |
| contents | We demonstrate temporal pattern formation in a coherently driven fiber ring cavity whose effective finesse is continuously reconfigured using distributed Raman amplification. We achieve an effective finesse of up to $\mathcal{F}_{\mathrm{eff}}\approx800$, corresponding to a linewidth of approximately 725 Hz ($Q\approx2.7\times10^{11}$) at 1555 nm. By exploiting the resulting increase in effective photon lifetime, we excite stable temporal cavity solitons and generate a low-repetition-rate frequency comb with a spacing of 580~kHz. Finally, we analyze the impact of the Raman loss-compensation mechanism, particularly its associated noise and show that a trade-off exists between soliton excitation threshold and stability. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2604_02274 |
| institution | arXiv |
| publishDate | 2026 |
| record_format | arxiv |
| spellingShingle | Temporal soliton generation in an ultra-high-effective-Q Kerr resonator enabled by Raman gain Semaan, Georges Sun, Yifan Englebert, Nicolas Gorza, Simon-Pierre Leo, François Optics We demonstrate temporal pattern formation in a coherently driven fiber ring cavity whose effective finesse is continuously reconfigured using distributed Raman amplification. We achieve an effective finesse of up to $\mathcal{F}_{\mathrm{eff}}\approx800$, corresponding to a linewidth of approximately 725 Hz ($Q\approx2.7\times10^{11}$) at 1555 nm. By exploiting the resulting increase in effective photon lifetime, we excite stable temporal cavity solitons and generate a low-repetition-rate frequency comb with a spacing of 580~kHz. Finally, we analyze the impact of the Raman loss-compensation mechanism, particularly its associated noise and show that a trade-off exists between soliton excitation threshold and stability. |
| title | Temporal soliton generation in an ultra-high-effective-Q Kerr resonator enabled by Raman gain |
| topic | Optics |
| url | https://arxiv.org/abs/2604.02274 |