Practical 1-um GHz fiber comb on silica-based platform
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arXiv
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| Auteurs principaux: | , , , , , , , , , , , |
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| Format: | Preprint |
| Publié: |
2025
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| _version_ | 1866918156862226432 |
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| author | Yang, Ruoao Jin, Xingang Wang, Ya Zhao, Minghe Chen, Zhendong Lin, Xinpeng Meng, Fei Pan, Duo Li, Qian Chen, Jingbiao Wang, Aimin Zhang, Zhigang |
| author_facet | Yang, Ruoao Jin, Xingang Wang, Ya Zhao, Minghe Chen, Zhendong Lin, Xinpeng Meng, Fei Pan, Duo Li, Qian Chen, Jingbiao Wang, Aimin Zhang, Zhigang |
| contents | We present a fully stabilized 1-GHz Yb-fiber laser frequency comb built on silica substrates, utilizing "optical cubes" to house all optical components, ensuring long-term stability and practical operation. Both the femtosecond laser and f-to-2f interferometer are constructed to silica bricks, with a compact footprint of 290 mm * 250 mm, and a total weight of 1.8 kg. This system provides a stable repetition rate, offset frequency, and a supercontinuum spanning 460-1560 nm without requiring amplification. The carrier-envelop offset frequency exhibits exceptional in-loop stability, with a fractional frequency instability of 3.07* 10^(-18) at a 1 second averaging time, improving to 2.12*10^(-20) at a 10,000 second, maintaining uninterrupted operation for over 60 hours. This work demonstrates a high-performance GHz fiber-based frequency comb, paving the way for applications beyond laboratory environments, including dual-comb spectroscopy, astronomical spectrograph calibration, and portable optical clocks. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2503_16249 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Practical 1-um GHz fiber comb on silica-based platform Yang, Ruoao Jin, Xingang Wang, Ya Zhao, Minghe Chen, Zhendong Lin, Xinpeng Meng, Fei Pan, Duo Li, Qian Chen, Jingbiao Wang, Aimin Zhang, Zhigang Optics We present a fully stabilized 1-GHz Yb-fiber laser frequency comb built on silica substrates, utilizing "optical cubes" to house all optical components, ensuring long-term stability and practical operation. Both the femtosecond laser and f-to-2f interferometer are constructed to silica bricks, with a compact footprint of 290 mm * 250 mm, and a total weight of 1.8 kg. This system provides a stable repetition rate, offset frequency, and a supercontinuum spanning 460-1560 nm without requiring amplification. The carrier-envelop offset frequency exhibits exceptional in-loop stability, with a fractional frequency instability of 3.07* 10^(-18) at a 1 second averaging time, improving to 2.12*10^(-20) at a 10,000 second, maintaining uninterrupted operation for over 60 hours. This work demonstrates a high-performance GHz fiber-based frequency comb, paving the way for applications beyond laboratory environments, including dual-comb spectroscopy, astronomical spectrograph calibration, and portable optical clocks. |
| title | Practical 1-um GHz fiber comb on silica-based platform |
| topic | Optics |
| url | https://arxiv.org/abs/2503.16249 |