Observation of tuning properties in a doubly resonant backward optical parametric oscillator

Fuente: arXiv
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Main Authors: Gao, Ming-Yuan, Song, Yue-Wei, Guo, Zhi-Cheng, Li, Yin-Hai, Zhou, Zhi-Yuan, Shi, Bao-Sen
Format: Preprint
Published: 2025
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_version_ 1866917109613723648
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