具有低约束因子和超窄垂直发散角的高饱和功率反波导非对称超大型光腔 SOA

IF 3.5 2区 物理与天体物理 Q2 PHYSICS, APPLIED Applied Physics Letters Pub Date : 2024-11-26 DOI:10.1063/5.0240831
Shuang Hao, Suping Liu, Qiong Qi, Cong Xiong, Jinyuan Chang, Lingni Zhu, Xin Wei, Xiaoyu Ma
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引用次数: 0

摘要

作为非线性频率转换中的功率放大器,1 μm 左右的半导体光放大器能有效实现光源系统的小型化。本文报道了一种具有高饱和功率的低约束因子反波导非对称超大光腔半导体光放大器(AT-SLOC-SOA)。我们在 n 包层下引入了高折射率模式过滤层,确保了外延方向的基模输出,同时将每个量子阱的光约束因子降至 0.615%。SOA 在外延方向显示出基模,其垂直发散角仅为 13.8°,具有超窄的垂直发散角,可提高光纤耦合效率。在 20 °C 和 3 A 条件下,AT-SLOC-SOA 的峰值波长为 1017.15 nm,-3 dB 光谱带宽为 27.491 nm。小信号增益最大可达 22.3 dB,-3 dB 饱和输出功率高达 26.4 dBm,最大输出功率高达 30 dBm。制造工艺采用了传统的外延生长和蚀刻技术,在实现高饱和输出功率的同时,确保了低成本和高可靠性。
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High saturation power anti-waveguide asymmetric super-large optical cavity SOA with low confinement factor and ultra-narrow vertical divergence angle
As a power amplifier in nonlinear frequency conversion, semiconductor optical amplifiers around 1 μm can effectively realize the miniaturization of the light source system. In this paper, a low confinement factor anti-waveguide asymmetric super-large optical cavity semiconductor optical amplifier (AT-SLOC-SOA) with high saturation power is reported. We introduced a high-refractive-index mode filtration layer under the n-cladding layer, ensuring fundamental mode output in the epitaxial direction while reducing the optical confinement factor to 0.615% per quantum well. The SOA exhibits a fundamental mode in the epitaxial direction with an ultra-narrow vertical divergence angle of merely 13.8°, which can enhance the fiber coupling efficiency. At 20 °C and 3 A, the AT-SLOC-SOA showed a peak wavelength of 1017.15 nm and a −3 dB spectral bandwidth of 27.491 nm. The small-signal gain reaches a maximum of 22.3 dB, with a −3 dB saturated output power up to 26.4 dBm and a maximum output power as high as 30 dBm. The fabrication process utilizes conventional epitaxial growth and etching techniques to ensure low cost and high reliability while achieving high saturated output power.
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来源期刊
Applied Physics Letters
Applied Physics Letters 物理-物理:应用
CiteScore
6.40
自引率
10.00%
发文量
1821
审稿时长
1.6 months
期刊介绍: Applied Physics Letters (APL) features concise, up-to-date reports on significant new findings in applied physics. Emphasizing rapid dissemination of key data and new physical insights, APL offers prompt publication of new experimental and theoretical papers reporting applications of physics phenomena to all branches of science, engineering, and modern technology. In addition to regular articles, the journal also publishes invited Fast Track, Perspectives, and in-depth Editorials which report on cutting-edge areas in applied physics. APL Perspectives are forward-looking invited letters which highlight recent developments or discoveries. Emphasis is placed on very recent developments, potentially disruptive technologies, open questions and possible solutions. They also include a mini-roadmap detailing where the community should direct efforts in order for the phenomena to be viable for application and the challenges associated with meeting that performance threshold. Perspectives are characterized by personal viewpoints and opinions of recognized experts in the field. Fast Track articles are invited original research articles that report results that are particularly novel and important or provide a significant advancement in an emerging field. Because of the urgency and scientific importance of the work, the peer review process is accelerated. If, during the review process, it becomes apparent that the paper does not meet the Fast Track criterion, it is returned to a normal track.
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