用于全固态激光雷达应用的 SOA 集成式宽调谐激光阵列

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2024-10-11 DOI:10.1109/LPT.2024.3478811

Kai Chang;Jia Guo;Zhongwen Wang;Jialin Cheng;Jiahui Yu;Guocai Song;Jian-Jun He

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引用次数: 0

摘要

本文提出并演示了一种集成 SOA 的宽调谐激光阵列。半导体光放大器（SOA）通过深蚀刻沟槽与可调谐 V 腔激光器耦合。在 SOA 的输出端使用一个倾斜的蚀刻面，以代替抗反射（AR）涂层，从而有效地减弱输出面的反射，同时保持输出光束垂直于裂开的芯片边缘，以方便外部耦合。无需复杂的光栅或多重外延生长。就单个器件而言，通过调节单电极电流可实现 36.3 nm 的调谐范围，侧模抑制比超过 38 dB。5 °C 时的最大输出功率为 32 mW。通过三步量子阱混合（QWI）技术，实现了由四个具有不同带隙的 SOA 集成可调谐激光器组成的阵列，从而使总调谐范围达到 103 nm。

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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SOA-Integrated Widely Tunable Laser Array for All-Solid Lidar Application

A SOA-integrated widely tunable laser array is proposed and demonstrated in this letter. The semiconductor optical amplifier (SOA) is coupled to the tunable V-cavity laser through a deeply etched trench. An angled etched facet is used at the output of the SOA, in lieu of an anti-reflection (AR) coating, to effectively attenuate output facet reflection, while keeping the output beam perpendicular to the cleaved chip edge to facilitate external coupling. No complex grating or multiple epitaxial growth is needed. For the individual device, a tuning range of 36.3 nm is achieved by adjusting single electrode current with a side-mode suppression ratio of over 38 dB. A maximum output power of 32 mW at 5 °C is obtained. An array consisting of four SOA-integrated tunable lasers with different bandgaps are realized through three-step quantum well intermixing (QWI), thereby enabling a total tuning range of 103 nm.

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.