Radiation from vertical dipole antennas, which are located over or under the surface of lossy earth, is analysed by the finite-difference time-domain (FDTD) method in cylindrical coordinates. A novel generalized perfectly matched layer (PML) has been developed and used for the truncation of the loss
A finite-difference time-domain electromagnetic field solver for vertical-cavity lasers
✍ Scribed by Jean-Francois P. Seurin; Guobin Liu; Daniel C. Barnes; Dubravko I. Babic; Scott W. Corzine; Michael R. T. Tan
- Publisher
- John Wiley and Sons
- Year
- 1998
- Tongue
- English
- Weight
- 108 KB
- Volume
- 18
- Category
- Article
- ISSN
- 0895-2477
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✦ Synopsis
We present a full-¨ector Maxwell equation sol¨er for the ( ) analysis of ¨ertical-ca¨ity surface-emitting lasers VCSELs with circular ( ) symmetry using the finite-difference time-domain FDTD method. We apply this model to the air-post index-guided 1.55 m VCSEL structure, and determine the resonant wa¨elengths and the quality factor for selected lowest order modes. The results of this study enable quantitati¨e and qualitati¨e descriptions of the trans¨erse-mode competition and emission spectra of VCSELs.
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