Miniature narrow-linewidth 1 μm Laser
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arXiv
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| Main Authors: | , , , , , , , , , , |
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| Format: | Preprint |
| Published: |
2024
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| _version_ | 1866916155523858432 |
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| author | Zhang, Xiaofan Zhang, Fan Jia, Kunpeng Liu, Yunfeng shi, Haosen Jiang, Yanyi Jiang, Xiaoshun Ma, Longsheng Liang, Wei Xie, Zhenda Zhu, Shi-ning |
| author_facet | Zhang, Xiaofan Zhang, Fan Jia, Kunpeng Liu, Yunfeng shi, Haosen Jiang, Yanyi Jiang, Xiaoshun Ma, Longsheng Liang, Wei Xie, Zhenda Zhu, Shi-ning |
| contents | Self-injection locking scheme has the potential to narrow the linewidth of lasers in a compact setup. Here, we report a narrow linewidth laser source near 1 μm by self-injection locking scheme using a Fabry-Perot (FP) hollow resonator with a high-quality factor (Q>10^8). The measured fundamental linewidth of the laser is 41 Hz, and a coarse tuning range over 5.5 nm is achieved by changing the driving current of the laser source. Meanwhile, a fine-tuning range of 373 MHz is achieved without mode hops by changing the voltage applied to the PZT on the resonator. More importantly, benefiting from the low thermal refractive noise and low thermal expansion of the FP hollow resonator, the beat-note linewidth and the frequency Allan deviation are measured to be 510.3 Hz in and 10^-11 (1s averaging time), respectively, by using a fully stabilized frequency comb as reference. Such a high-performance laser is fully integrated with a palm-sized package (52.3 mL) for field-deployable applications. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2403_06163 |
| institution | arXiv |
| publishDate | 2024 |
| record_format | arxiv |
| spellingShingle | Miniature narrow-linewidth 1 μm Laser Zhang, Xiaofan Zhang, Fan Jia, Kunpeng Liu, Yunfeng shi, Haosen Jiang, Yanyi Jiang, Xiaoshun Ma, Longsheng Liang, Wei Xie, Zhenda Zhu, Shi-ning Optics Self-injection locking scheme has the potential to narrow the linewidth of lasers in a compact setup. Here, we report a narrow linewidth laser source near 1 μm by self-injection locking scheme using a Fabry-Perot (FP) hollow resonator with a high-quality factor (Q>10^8). The measured fundamental linewidth of the laser is 41 Hz, and a coarse tuning range over 5.5 nm is achieved by changing the driving current of the laser source. Meanwhile, a fine-tuning range of 373 MHz is achieved without mode hops by changing the voltage applied to the PZT on the resonator. More importantly, benefiting from the low thermal refractive noise and low thermal expansion of the FP hollow resonator, the beat-note linewidth and the frequency Allan deviation are measured to be 510.3 Hz in and 10^-11 (1s averaging time), respectively, by using a fully stabilized frequency comb as reference. Such a high-performance laser is fully integrated with a palm-sized package (52.3 mL) for field-deployable applications. |
| title | Miniature narrow-linewidth 1 μm Laser |
| topic | Optics |
| url | https://arxiv.org/abs/2403.06163 |