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- W4313315583 abstract "<p>Spin-Vertical Cavity Surface Emitting Lasers (spin-VCSELs) are undergoing increasing research effort for new paradigms in high-speed optical communications and photon-enabled computing. To date research in spin-VCSELs has mostly focused on Quantum-Well (QW) devices. However, novel Quantum-Dot (QD) spin-VCSELs, offer enhanced parameter controls permitting the effective, dynamical and ultrafast manipulation of their light emission’s polarization. In the present contribution we investigate in detail the operation of QD spin-VCSELs subject to polarization modulation for their use as ultrafast light sources in optical communication systems. We reveal that QD spin-VCSELs outperform their QW counterparts in terms of modulation efficiency, yielding a nearly two- fold improvement. We also analyse the impact of key device parameters in QD spin-VCSELs (e.g. photon decay rate and intra-dot relaxation rate) on the large signal modulation performance with regard to optical modulation amplitude and eye-diagram opening penalty. We show that in addition to exhibiting enhanced polarization modulation performance for data rates up to $250Gb/s$, QD spin-VCSELs enable operation in dual (ground and excited state) emission thus allowing future exciting routes for multiplexing of information in optical communication links.</p>" @default.
- W4313315583 created "2023-01-06" @default.
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- W4313315583 date "2022-12-24" @default.
- W4313315583 modified "2023-09-29" @default.
- W4313315583 title "Polarization Modulation in Quantum Dot Spin-VCSELs for Ultrafast Data Transmission" @default.
- W4313315583 doi "https://doi.org/10.36227/techrxiv.21763313.v1" @default.
- W4313315583 hasPublicationYear "2022" @default.
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