Lasing Polarization Characteristics in 1.55-μm Spin-Injected VCSELs

Nobuhide Yokota; Ryutaro Takeuchi; Hiroshi Yasaka; Kazuhiro Ikeda

doi:10.1109/LPT.2017.2681129

Lasing Polarization Characteristics in 1.55-μm Spin-Injected VCSELs

Nobuhide Yokota, Ryutaro Takeuchi, Hiroshi Yasaka, Kazuhiro Ikeda

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

18 Citations (Scopus)

Abstract

Circular polarization characteristics in vertical-cavity surface-emitting lasers (VCSELs) with InAlGaAs quantum wells injected by spin-polarized electrons were investigated. A degree of circular polarization of 10% was obtained in a reduced birefringence VCSEL at a lasing wavelength of 1544 nm at room temperature under optical pumping of spin-polarized electrons. Strong birefringence originally introduced to stabilize the lasing polarization was confirmed to be undesirable for a high degree of circular polarization in spin-injected VCSELs. A spin-flip rate equation analysis fairly reproduced the experimental results and supported our conclusions.

Original language	English
Article number	7875470
Pages (from-to)	711-714
Number of pages	4
Journal	IEEE Photonics Technology Letters
Volume	29
Issue number	9
DOIs	https://doi.org/10.1109/LPT.2017.2681129
Publication status	Published - 2017 May 1

Keywords

InAlGaAs quantum well
Vertical cavity surface emitting laser
birefringence
electron spin

ASJC Scopus subject areas

Electronic, Optical and Magnetic Materials
Atomic and Molecular Physics, and Optics
Electrical and Electronic Engineering

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10.1109/LPT.2017.2681129

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title = "Lasing Polarization Characteristics in 1.55-μm Spin-Injected VCSELs",

abstract = "Circular polarization characteristics in vertical-cavity surface-emitting lasers (VCSELs) with InAlGaAs quantum wells injected by spin-polarized electrons were investigated. A degree of circular polarization of 10% was obtained in a reduced birefringence VCSEL at a lasing wavelength of 1544 nm at room temperature under optical pumping of spin-polarized electrons. Strong birefringence originally introduced to stabilize the lasing polarization was confirmed to be undesirable for a high degree of circular polarization in spin-injected VCSELs. A spin-flip rate equation analysis fairly reproduced the experimental results and supported our conclusions.",

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T1 - Lasing Polarization Characteristics in 1.55-μm Spin-Injected VCSELs

AU - Yokota, Nobuhide

AU - Takeuchi, Ryutaro

AU - Yasaka, Hiroshi

AU - Ikeda, Kazuhiro

PY - 2017/5/1

Y1 - 2017/5/1

N2 - Circular polarization characteristics in vertical-cavity surface-emitting lasers (VCSELs) with InAlGaAs quantum wells injected by spin-polarized electrons were investigated. A degree of circular polarization of 10% was obtained in a reduced birefringence VCSEL at a lasing wavelength of 1544 nm at room temperature under optical pumping of spin-polarized electrons. Strong birefringence originally introduced to stabilize the lasing polarization was confirmed to be undesirable for a high degree of circular polarization in spin-injected VCSELs. A spin-flip rate equation analysis fairly reproduced the experimental results and supported our conclusions.

AB - Circular polarization characteristics in vertical-cavity surface-emitting lasers (VCSELs) with InAlGaAs quantum wells injected by spin-polarized electrons were investigated. A degree of circular polarization of 10% was obtained in a reduced birefringence VCSEL at a lasing wavelength of 1544 nm at room temperature under optical pumping of spin-polarized electrons. Strong birefringence originally introduced to stabilize the lasing polarization was confirmed to be undesirable for a high degree of circular polarization in spin-injected VCSELs. A spin-flip rate equation analysis fairly reproduced the experimental results and supported our conclusions.

KW - InAlGaAs quantum well

KW - Vertical cavity surface emitting laser

KW - birefringence

KW - electron spin

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Lasing Polarization Characteristics in 1.55-μm Spin-Injected VCSELs

Abstract

Keywords

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