FDTD calculations of the divergence angle of multi-mode VCSELs

被引：3

作者：

Mochizuki, M ^{[1
]}

Nishida, T ^{[1
]}

Kakinuma, S ^{[1
]}

Kaneko, T ^{[1
]}

机构：

[1] Seiko Epson Corp, VIE Project, Fujimi, Nagano 3990293, Japan

来源：

Physics and Simulation of Optoelectronic Devices XIII | 2005年 / 5722卷

关键词：

VCSEL; divergence angle; oxide aperture; electrode; FDTD;

D O I：

10.1117/12.590028

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

We describe and demonstrate a method of decreasing the divergence angle of multi-mode VCSELs, and show how we can obtain a low and stable divergence angle. We first explain the relationship between the lateral wave-vectors of resonant modes and the divergence angle. Then we attempt to optimize the oxide aperture and the electrode structure. Here, we calculate the electro-magnetic field of the VCSELs by the Finite Difference Time Domain (FDTD) method and the far-field pattern by combining the diffraction integral and the FDTD. Finally, we compare the theoretical and experimental results of the divergence angle of the VCSELs.

引用

页码：201 / 210

页数：10

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