Temperature dependence of the reflectivity in absorbing Bragg reflectors

J. L. Shen*, C. Y. Chang, Wu-Ching Chou, M. C. Wu, Y. F. Chen

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

12 Scopus citations


The reflectivity of absorbing Bragg reflectors consisting of a GaAs/AlAs Bragg mirror and a InGaAs/InGaAsP multiple-quantum-well cavity layer was studied as a function of temperature. An absorption dip in the stop band due to the optical confinement of the Fabry-Perot resonance was observed in the reflectivity spectra. The absorption intensity of the dip increased with temperature and was explained by the resonant coincidence of the Fabry-Perot cavity mode and the quantum-well absorption. The temperature-dependent reflectivity spectra were successfully reproduced using the transfer matrix method and the linear dependence of the refractive index on temperature.

Original languageEnglish
Pages (from-to)287-293
Number of pages7
JournalOptics Express
Issue number6
StatePublished - 1 Jan 2001

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