Fresnel analysis of effective mirror reflectivity in folded-cavityin-plane surface-emitting lasers |
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| Authors: | Chao C.-P. Chuang Z.-M. Law K.-K. Merz J.L. Coldren L.A. |
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| Affiliation: | Dept. of Electr. & Comput. Eng., California Univ., Santa Barbara, CA; |
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| Abstract: | Inside-cavity diffraction loss resulting from unguided regions and 45° internal total reflection mirror(s) is an important issue for fabricating folded-cavity in-plane surface-emitting lasers. A Fresnel plane-wave decomposition method was applied to analyze this problem. The effective reflectivity of an angle-etched mirror was calculated for deviation of the etched angle and different lengths of the unguided region. The results offer design criteria for fabricating folded-cavity surface-emitting lasers as well as other devices with angle-etched facet(s) for surface normal light coupling |
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