Polarization switching in composite-resonator vertical-cavity lasers

D. M. Grasso, K. D. Choquette

Research output: Contribution to journalArticlepeer-review


The polarization switching in a monolithic dual-resonator vertical-cavity laser was studied. The light output from the top ion-implanted cavity under forward bias above threshold was partitioned into two orthogonal polarizations of the fundamental transverse modes. It was found that a reverse bias of sufficient magnitude applied to the bottom oxide-confined cavity caused the abrupt supression of the dominant polarization and simultaneous emergence of the orthogonal polarization. The study showed that the mechanism of the polarization switch was consistent with wavelength-dependent loss from electroabsorption in the reverse-biased quantum wells of the oxide-confined cavity.

Original languageEnglish (US)
Pages (from-to)5148-5150
Number of pages3
JournalApplied Physics Letters
Issue number25
StatePublished - Dec 22 2003

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)


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