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Analytical approximation of the radiation confinement factor for the TE0mode of a double heterojunction laser

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1 Author(s)
Botez, D. ; RCA Laboratories, Princeton, NJ, USA

An analytical approximation is found for \Gamma _{0} , the TE0radiation confinement factor in symmetric heterostructures, by using a combination of its asymptotes in the limits of very thin active layers and thick active layers, respectively. The exact expression for \Gamma _{0} is calculated and compared to the approximation formula. It is found that for any light guiding planar double heterostructure (DH) configuration the approximation is at most -1.5 percent off with respect to the exact \Gamma _{0} value.

Published in:

Quantum Electronics, IEEE Journal of  (Volume:14 ,  Issue: 4 )