铌酸锂薄膜上氮化硅微环的二次谐波和和频产生。

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-03-15 DOI:10.1364/OL.555906

Jianguo Wang, Binbin Wang, Junling Qu, Yanyan Zhang, Chenyang Zhao, Jie Wang, Liang Fang, Jianlin Zhao, Xuetao Gan

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引用次数: 0

摘要

我们通过加载氮化硅（SiN）微环谐振器，在薄膜铌酸锂（TFLN）平台上证明了显著的二次谐波产生（SHG）和和频产生（SFG），从而避免了铌酸锂的干蚀刻。通过优化加载正弦信号的TFLN波导几何结构，设计了基泵浦激光与SHG/SFG信号的相位匹配条件。结合微环谐振器的增强，实现了显著的SHG和SFG信号，转换效率分别为16.43%/W和5.90%/W。与传统的TFLN光子平台相比，这种cmos兼容策略为实现基于TFLN的大规模片上非线性光子器件提供了机会。

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Second harmonic and sum frequency generation in silicon nitride microring on thin-film lithium niobate.

We demonstrate significant second harmonic generation (SHG) and sum frequency generation (SFG) on a thin-film lithium niobate (TFLN) platform by loading a silicon nitride (SiN) microring resonator, which avoids the dry etching of lithium niobate. By optimizing SiN-loaded TFLN waveguide geometry, the phase-matching conditions between the fundamental pump laser and the SHG/SFG signals are designed. Combining with enhancement by the microring resonator, remarkable SHG and SFG signals with conversion efficiencies of 16.43%/W and 5.90%/W are realized, respectively. Compared to traditional TFLN photonic platform, this CMOS-compatible strategy offers an opportunity for achieving large-scale on-chip nonlinear photonic devices based on TFLN.

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来源期刊

Optics letters 物理-光学

CiteScore

6.60

自引率

8.30%

发文量

2275

审稿时长

1.7 months

期刊介绍： The Optical Society (OSA) publishes high-quality, peer-reviewed articles in its portfolio of journals, which serve the full breadth of the optics and photonics community. Optics Letters offers rapid dissemination of new results in all areas of optics with short, original, peer-reviewed communications. Optics Letters covers the latest research in optical science, including optical measurements, optical components and devices, atmospheric optics, biomedical optics, Fourier optics, integrated optics, optical processing, optoelectronics, lasers, nonlinear optics, optical storage and holography, optical coherence, polarization, quantum electronics, ultrafast optical phenomena, photonic crystals, and fiber optics. Criteria used in determining acceptability of contributions include newsworthiness to a substantial part of the optics community and the effect of rapid publication on the research of others. This journal, published twice each month, is where readers look for the latest discoveries in optics.