Visible Phase-Locked Microcombs Generation in High-Index Doped Silica Glass Micro-Ring Resonators

IF 9.8 1区 物理与天体物理 Q1 OPTICS
Yuhua Li, Yuan Yao, Guangkuo Li, Xiaotian Zhu, Xiang Wang, Roy R. Davidson, Brent E. Little, Jijun He, Sai T. Chu, Zhe Kang
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Abstract

The development of integrated microcomb in the visible light region attracts considerable interest due to their potential applications ranging from bioimaging to quantum systems. However, apart from the handful of reports of phase-locked microcombs, the realization of a phase-locked visible microcomb in the visible region has so far been elusive. Here, visible phase-locked microcombs are experimentally demonstrated by frequency conversion of a near-infrared (NIR) energetic soliton crystal microcomb in a high-index doped silica glass (HDSG) integrated micro-ring resonator. Two-color (green-NIR) and even tri-color (green-red-NIR) phase-locked microcombs are produced by the combined Pockels (χ(2)) and Kerr (χ(3)) parametric processes. The results show that bright green and yellow microcombs can be alternately produced via scanning the continuous-wave pump laser over the C + L bands. The visible microcomb power is found to be simultaneously reinforced to their maximum when the NIR microcomb evolves within the soliton crystal state. The coordinated behavior of the power evolution of descending soliton staircase between the visible and NIR microcombs is also observed, indicating the joint soliton formation and phase locking characteristics. These findings confirm the HDSG micro-ring resonator a promising integrated solution for broadband and phase-locked visible microcomb generation linking the frequency from visible green to NIR.

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来源期刊
CiteScore
14.20
自引率
5.50%
发文量
314
审稿时长
2 months
期刊介绍: Laser & Photonics Reviews is a reputable journal that publishes high-quality Reviews, original Research Articles, and Perspectives in the field of photonics and optics. It covers both theoretical and experimental aspects, including recent groundbreaking research, specific advancements, and innovative applications. As evidence of its impact and recognition, Laser & Photonics Reviews boasts a remarkable 2022 Impact Factor of 11.0, according to the Journal Citation Reports from Clarivate Analytics (2023). Moreover, it holds impressive rankings in the InCites Journal Citation Reports: in 2021, it was ranked 6th out of 101 in the field of Optics, 15th out of 161 in Applied Physics, and 12th out of 69 in Condensed Matter Physics. The journal uses the ISSN numbers 1863-8880 for print and 1863-8899 for online publications.
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