Tampere University of Technology

TUTCRIS Research Portal

Near-threshold high spin amplification in a 1300 nm GaInNAs spin laser

Research output: Contribution to journalArticleScientificpeer-review

Details

Original languageEnglish
Article number094005
JournalSemiconductor Science and Technology
Volume33
Issue number9
DOIs
Publication statusPublished - 1 Aug 2018
Publication typeA1 Journal article-refereed

Abstract

Using continuous-wave optical pumping of a spin-VCSEL at room temperature, we find high spin amplification of the pump close to threshold within the communications wavelength window, here at 1300 nm. This facilitates a strong switch from left to right circularly polarised light emission, which has potential applications in polarisation encoding for data communications. We use a simple spin flip model to fit the experimental results and discuss the VCSEL parameters that affect this amplification.

Keywords

  • spin amplification, spin laser, spin VCSEL

Publication forum classification

Field of science, Statistics Finland