ISSN:
1572-817X
Source:
Springer Online Journal Archives 1860-2000
Topics:
Electrical Engineering, Measurement and Control Technology
,
Physics
Notes:
Abstract This paper is devoted to a comparison of two electromagnetic models of junction lasers — the dielectric slab and the Epstein layer. The main emphasis is on the discussion of possible methods of matching the parameters appearing in both models. The threshold condition for active layer thickness and mode frequency at a given gain and mode number is solved numerically. It is shown that the discrepancies between both models become reasonably small when a proper method, involving averaging of the dielectric constant over the active and passive regions, is applied. The cases of the three lowest order TE transverse modes of homojunction, single-, and double-heterojunction lasers are considered. The obtained results suggest that the Epstein-layer model can approximate experimental data as well as the dielectricslab model does.
Type of Medium:
Electronic Resource
URL:
http://dx.doi.org/10.1007/BF00620219
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