International Journal of Internet, Broadcasting and Communication
- Volume 4 Issue 2
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- Pages.22-27
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- 2012
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- 2288-4920(pISSN)
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- 2288-4939(eISSN)
DOI QR Code
Modelling the Mode Behavior of Circular Vertical-Cavity Surface-Emitting Laser
- Ho, Kwang-Chun (Department of information and communication engineering, Hansung University)
- Received : 2012.06.17
- Accepted : 2012.08.10
- Published : 2012.08.31
Abstract
The design characteristics of circular vertical-cavity surface-emitting lasers are studied by using a newly developed equivalent network. Optical parameters, such as the stop-band or the reflectivity of periodic mirrors and the resonance wavelength, are explored for the design of these structures. To evaluate the differential quantum efficiency and the threshold current density, a transverse resonance condition of modal transmission-line theory is also utilized. This approach dramatically reduces the computational time as well as gives an explicit insight to explore the optical characteristics of circular vertical-cavity surface-emitting lasers (VCSELs).