Demonstration of III-nitride vertical-cavity surface-emitting lasers with a topside dielectric curved mirror

IF 2.3 4区物理与天体物理 Q3 PHYSICS, APPLIED

Applied Physics Express Pub Date : 2023-12-02 DOI:10.35848/1882-0786/ad119b

Nathan C. Palmquist, Jared A. Kearns, Stephenn M Gee, Arturo Juan, Srinivas Gandrothula, Michael Lam, S. Denbaars, S. Nakamura

引用次数: 0

Abstract

We report long cavity (65lambda) GaN-based vertical-cavity surface-emitting lasers (VCSELs) with a topside dielectric concave mirror, an ion implanted current aperture, and a bottomside nanoporous GaN distributed Bragg reflector. Under pulsed operation, a VCSEL with a 10µm aperture and a curved mirror with a radius of curvature (ROC) of 120µm had a threshold current density of 14kA/cm2, and a maximum output power of 370µW for a lasing mode at 404.5nm. The longitudinal performance has a side-mode suppression ratio of 30dB up to a current density of approximately 40kA/cm2. Multiple transverse mode profiles are observed across several devices.

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带顶部电介质曲面镜的Ⅲ-氮化物垂直腔表面发射激光器演示

我们报道了长腔(65lambda) GaN基垂直腔面发射激光器(VCSELs)，该激光器具有上部介质凹面镜，离子注入电流孔径和底部纳米多孔GaN分布Bragg反射器。在脉冲工作条件下，孔径为10µm、曲率半径(ROC)为120µm的VCSEL在404.5nm激光模式下的阈值电流密度为14kA/cm2，最大输出功率为370µW。纵向性能的侧模抑制比为30dB，电流密度约为40kA/cm2。在多个器件上观察到多个横向模廓。

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

Applied Physics Express 物理-物理：应用

CiteScore

4.80

自引率

8.70%

发文量

310

审稿时长

1.2 months

期刊介绍： Applied Physics Express (APEX) is a letters journal devoted solely to rapid dissemination of up-to-date and concise reports on new findings in applied physics. The motto of APEX is high scientific quality and prompt publication. APEX is a sister journal of the Japanese Journal of Applied Physics (JJAP) and is published by IOP Publishing Ltd on behalf of the Japan Society of Applied Physics (JSAP).