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Proceedings Paper

FDTD calculations of the divergence angle of multi-mode VCSELs
Author(s): Masamitsu Mochizuki; Tetsuo Nishida; Satoshi Kakinuma; Takeo Kaneko
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Paper Abstract

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.

Paper Details

Date Published: 28 April 2005
PDF: 10 pages
Proc. SPIE 5722, Physics and Simulation of Optoelectronic Devices XIII, (28 April 2005); doi: 10.1117/12.590028
Show Author Affiliations
Masamitsu Mochizuki, Seiko Epson Corp. (Japan)
Tetsuo Nishida, Seiko Epson Corp. (Japan)
Satoshi Kakinuma, Seiko Epson Corp. (Japan)
Takeo Kaneko, Seiko Epson Corp. (Japan)


Published in SPIE Proceedings Vol. 5722:
Physics and Simulation of Optoelectronic Devices XIII
Marek Osinski; Fritz Henneberger; Hiroshi Amano, Editor(s)

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