Observation of tuning properties in a doubly resonant backward optical parametric oscillator
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arXiv
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| Main Authors: | , , , , , |
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| Format: | Preprint |
| Published: |
2025
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| _version_ | 1866917109613723648 |
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| author | Gao, Ming-Yuan Song, Yue-Wei Guo, Zhi-Cheng Li, Yin-Hai Zhou, Zhi-Yuan Shi, Bao-Sen |
| author_facet | Gao, Ming-Yuan Song, Yue-Wei Guo, Zhi-Cheng Li, Yin-Hai Zhou, Zhi-Yuan Shi, Bao-Sen |
| contents | Doubly resonant optical parametric oscillators (OPOs) under continuous wave (CW) pumping are particularly notable for their low threshold and narrow linewidth. Backward OPOs (BOPOs) realized through backward quasi-phase matching which exhibit unique tuning properties compared with conventional forward OPOs have been demonstrated under pulse pumping. In this work, a doubly resonant BOPO was implemented in a semi-monolithic cavity under CW pumping, and its tuning properties were characterized. By tuning the pump wavelength, the forward and backward waves exhibited tuning ranges of 56.85 nm and 0.89 nm, respectively. Adjusting the crystal temperature resulted in tuning ranges of 59.7 GHz and 59.4 GHz for the forward and backward waves, respectively. This research establishes the BOPO as a promising candidate for applications in the field of CW OPOs. |
| format | Preprint |
| id |
arxiv_https___arxiv_org_abs_2509_20925 |
| institution | arXiv |
| publishDate | 2025 |
| record_format | arxiv |
| spellingShingle | Observation of tuning properties in a doubly resonant backward optical parametric oscillator Gao, Ming-Yuan Song, Yue-Wei Guo, Zhi-Cheng Li, Yin-Hai Zhou, Zhi-Yuan Shi, Bao-Sen Optics Doubly resonant optical parametric oscillators (OPOs) under continuous wave (CW) pumping are particularly notable for their low threshold and narrow linewidth. Backward OPOs (BOPOs) realized through backward quasi-phase matching which exhibit unique tuning properties compared with conventional forward OPOs have been demonstrated under pulse pumping. In this work, a doubly resonant BOPO was implemented in a semi-monolithic cavity under CW pumping, and its tuning properties were characterized. By tuning the pump wavelength, the forward and backward waves exhibited tuning ranges of 56.85 nm and 0.89 nm, respectively. Adjusting the crystal temperature resulted in tuning ranges of 59.7 GHz and 59.4 GHz for the forward and backward waves, respectively. This research establishes the BOPO as a promising candidate for applications in the field of CW OPOs. |
| title | Observation of tuning properties in a doubly resonant backward optical parametric oscillator |
| topic | Optics |
| url | https://arxiv.org/abs/2509.20925 |