Oxide-confined vertical cavity surface emitting lasers (VCSELs) with anti-waveguiding AlAs-rich core presently attract a lot of attention. Anti-waveguiding cavity enables the maximum possible optical ...confinement of the VCSEL mode ("λ/2 design"), increases its oscillator strength and reduces dramatically the optical power accumulated in the VCSEL mesa regions outside the aperture. VCSEL designs are suggested that favor single transverse mode operation. Modeling including current-induced and absorption-induced overheating shows that the preference for the transverse fundamental mode persists up to 10 mA current at 5 µm aperture diameter. Error-free data transmission is realized up to 160 Gb/s in digital-multitone (DMT) format using single-mode anti-waveguiding VCSELs. The approach to single-mode anti-waveguiding VCSELs is extended over a broad spectral range realizing error-free high-speed data transmission at both 850 nm and 910 nm.
High‐speed discrete multitone serial data transmission over multi‐mode fibre at gross data rates up to 224 Gbit/s achieved with directly modulated oxide‐confined vertical cavity surface emitting ...lasers at 850 and 910 nm are presented.
Dispersion in the multimode fibres (MMF) limits the transmission distance of the modern data communication networks. The authors show that the use of single-mode (SM) vertical cavity surface emitting ...lasers (VCSELs) in combination with the receiver module of a commercially available transceiver can increase the transmission distance to several kilometres. They report 25.78 Gbit/s error-free transmission over 1800 m of multimode fibre with 850 nm and 1400 m with 910 nm SM VCSELs. Data transmission up to 2600 and 2400 m can be achieved with BER below 3.8×10−3 forward error correction limit accordingly. The use of multiple wavelengths demonstrates the opportunity to increase the capacity of MMF links with shortwave wavelength division multiplexing.
•HPC, on-board, industrial and automotive applications require operation at high temperatures.•We analyze 850 nm Quantum Dot VCSELs, capable of high-speed operation at extreme temperatures.•QD VCSELs ...show SM polarized emission and a unique feature of increasing bandwidth with temperature.•Record high speed operation is demonstrated, from 56 Gbit/s at 85 °C to 25 Gbit/s at 150 °C.
We propose and evaluate performance of the higher order mode filter for 850 nm multimode fiber transmission. The developed passive component reduces impact of mode dispersion on the systems ...performance. Excellent operation in the 850 nm transmission experiments is shown.
We propose and evaluate performance of the higher order mode filter for 850 nm multimode fiber transmission. The developed passive component reduces impact of mode dispersion on the systems ...performance. Excellent operation in the 850 nm transmission experiments is shown.
The multi core fibre can be successfully applied not only the long-haul ultra-high capacity transmission but also in data interconnects and integrated distribution networks. In this paper, the ...proposed application areas are reviewed.
We report 60 Gbit/s OOK data transmission with directly modulated 850 nm single-mode VCSELs without applying equalization or digital signal processing. Data transmission over 800 m of multi-mode ...fiber is demonstrated.
In this paper we report high frequency (50 - 100GHz range) optical field intensity oscillations in a laterally-coupled-cavity vertical cavity surface-emitting laser. The oscillating frequency is ...defined by the photon energy splitting of the coupled states, each oscillating at a frequency defined by the related photon energy. As a result of constructive or destructive interference the optical field intensity reaches maximum either in the left or in the right aperture. As the frequency difference is small as compared to the averaged photon frequency, the cavities are quasi-resonant and the interference effect is strong, causing an intense resonance frequency with integrated intensity of at least 3-fold higher as compared to the resonance oscillation frequency feature. The effect is observed at low and at high current destinies. With proper design of the cavities, one should enable a simple and reliable solution for high-speed data transmission at data rates ~200 Gb/s and beyond. The effect coexists with spin-related frequency resonances allowing its combination with novel concepts in data transmission.
Recent advances in VCSELs and VCSEL-based links are reviewed. The impact of the VCSEL bandwidth extension from 22 GHz to 28 GHz on the performance of energy-efficient link capable of operating above ...71 Gbit/s in NRZ modulation is studied.
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