Full 3D FDTD analysis of modal characteristics in VCSELs with holey structure

Kosuke Morito; Daisuke Mori; Eichi Mizuta; Toshihiko Baba

doi:10.1117/12.601955

28 April 2005 Full 3D FDTD analysis of modal characteristics in VCSELs with holey structure

Kosuke Morito, Daisuke Mori, Eichi Mizuta, Toshihiko Baba

Proceedings Volume 5722, Physics and Simulation of Optoelectronic Devices XIII; (2005) https://doi.org/10.1117/12.601955
Event: Integrated Optoelectronic Devices 2005, 2005, San Jose, California, United States

Abstract

We analyzed lateral mode characteristics in 850-nm GaAs-based VCSELs with holey structures by FDTD method. Full three-dimensional analysis, which requires huge computer resources, was carried out using cluster computer. As a result, we estimated the good mode selectivity in circular and triangular holey structures, which cannot be obtained in a simple oxide aperture structure. It is explained by the large ra-diation loss from the inter-hole spacing and scattering loss at the bottom of holes particularly for higher order modes. In addition, the experimental result reported by Furukawa, et al., which showed the record high power single mode operation by the floral fundamental mode in the triangular holey structure, was verified. For any changes of standard structural parameters, only the Gaussian-like fundamental mode was confirmed. The floral mode was observed only when we assumed a nonuniform refractive index around the holey structure. Such nonuniformity can be considered in actual devices because of the non-uniform distribution of carriers and temperature at high current injection level.

Citation Download Citation

Kosuke Morito, Daisuke Mori, Eichi Mizuta, and Toshihiko Baba "Full 3D FDTD analysis of modal characteristics in VCSELs with holey structure", Proc. SPIE 5722, Physics and Simulation of Optoelectronic Devices XIII, (28 April 2005); https://doi.org/10.1117/12.601955

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available