Polarization switching control in vertical-cavity surface-emitting lasers

Timothy H. Russell, Tom D. Milster

Research output: Contribution to journalArticle

47 Scopus citations

Abstract

Orthogonal polarizations within vertical-cavity surface-emitting lasers (VCSEL) lase at slightly different wavelengths. We describe the use of optical feedback to confine polarization variations to reproducible injection currents. An external cavity is used to select specific wavelengths that reflect back into the VCSEL, hence, changing the cavity Q for the different polarization states. With this control, we can change the polarization state of the laser output.

Original languageEnglish (US)
Pages (from-to)2520-2522
Number of pages3
JournalApplied Physics Letters
Volume70
Issue number19
DOIs
StatePublished - May 12 1997

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

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