Picosecond all optical polarisation switching in InGaAsP MQW's at 1.52um

JT Hyland, GT Kennedy, Alan Miller, CC Button

Research output: Contribution to journalArticlepeer-review

28 Citations (Scopus)

Abstract

An all-optical switch operating at a wavelength of 1.52 mu m is demonstrated. The switch makes use of electron spin polarization in a multiple-quantum-well semiconductor structure. The polarization change of a signal beam was observed to recover with a time constant of 20 ps determined by the spin relaxation time.

Original languageEnglish
Pages (from-to)1419-1421
JournalIEEE Photonics Technology Letters
Volume10
Issue number10
DOIs
Publication statusPublished - Oct 1998

Keywords

  • excitons
  • optical communications
  • optical switches
  • quantum wells
  • ultrafast optics
  • QUANTUM-WELL ETALON
  • GATE
  • RELAXATION
  • ROTATION

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