Erbium-doped lithium niobate waveguide amplifier enhanced by an inverse-designed on-chip reflector.

IF 3.3 2区物理与天体物理 Q2 OPTICS

Optics letters Pub Date : 2025-06-01 DOI:10.1364/OL.561831

Zhiwei Wei, Jiangwei Wu, Chengyu Chen, Hao Li, Wenjie Wan, Xianfeng Chen, Yuping Chen

引用次数: 0

Abstract

This study presents a 3.6-cm-long erbium-doped lithium niobate waveguide amplifier enhanced by an inverse-designed on-chip reflector. Integrating a reflector to reflect signal light (1531.6 nm) at the waveguide end yielded an internal net gain of 40.5 dB, achieving a 17.3 dB gain improvement compared to a comparable reflector-free amplifier under small signal conditions. These results highlight a novel strategy, to the best of our knowledge, for optimizing integrated optical amplifiers, combining high gain with simplified architecture. The approach holds promise for advancing high-density photonic integrated systems, demonstrating the efficacy of inverse design in tailoring photonic device performance for practical applications.

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反设计片上反射器增强掺铒铌酸锂波导放大器。

本研究提出了一个3.6 cm长的掺铒铌酸锂波导放大器，该放大器由反设计的片上反射器增强。在波导端集成反射器来反射信号光（1531.6 nm），产生了40.5 dB的内部净增益，在小信号条件下，与同类无反射器放大器相比，增益提高了17.3 dB。这些结果突出了一种新的策略，据我们所知，优化集成光放大器，结合高增益和简化的架构。该方法有望推进高密度光子集成系统，展示了逆向设计在实际应用中定制光子器件性能的有效性。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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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.