Large extinction ratio and low threshold dual intra-cavity contacted polarisation switching VCSELs

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Large extinction ratio and low threshold dual intra-cavity contacted polarisation switching VCSELs

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A novel dual intra-cavity contacted VCSEL capable of switching between two orthogonal polarisation states is presented. Polarisation switching is controlled by changing the current injection direction. A record-low threshold current of 0.19 mA and an extinction ratio >21dB from fit are achieved.

Inspec keywords: light polarisation; laser cavity resonators; surface emitting lasers; optical switches

Other keywords: current injection direction; orthogonal polarisation state; VCSEL; dual intracavity contacted poarlisation switching; current 0.19 mA; polarisation switching

Subjects: Laser resonators and cavities; Laser beam modulation, pulsing and switching; mode locking and tuning; Semiconductor lasers; Lasing action in semiconductors; Design of specific laser systems; Laser resonators and cavities; Laser beam modulation, pulsing and switching; mode locking and tuning

References

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      • H.P.D. Yang , I.C. Hsu , F.I. Lai . Characteristics of single-mode InGaAs submonolayer quantum-dot photonic-crystal vertical-cavity surface-emitting lasers. Jpn. J. Appl. Phys. , 14 , 326 - 329
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Correspondence
This article has following corresponding article(s):
VCSELs take control