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

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


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.


  • spin amplification, spin laser, spin VCSEL

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Field of science, Statistics Finland

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