Intensity noise of large area vertical cavity surface emitting lasers in multimode optical fibre links

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Intensity noise of large area vertical cavity surface emitting lasers in multimode optical fibre links

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The authors report the measurement of the relative intensity noise (RIN) of large area vertical cavity surface emitting lasers (VCSELs) in a multimode fibre link. It is found that the RIN of the large area VCSELs under modulation is < −120 dBMz below a frequency ofl GHz and that reflection noise is significantly reduced with modulation.

Inspec keywords: laser cavity resonators; optical communication equipment; semiconductor lasers; optical links; semiconductor device noise; optical modulation; optical fibres

Other keywords: measurement; multimode optical fibre links; large area; modulation; relative intensity noise; 1 GHz; surface emitting lasers; VCSEL; vertical cavity; reflection noise

Subjects: Optical communication; Laser resonators and cavities; Fibre optics; Semiconductor lasers

References

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      • T. Ito , S. Machida , K. Nawata , T. Ikegami . Intensity fluctuations in each longitudinal mode of a multimode AlGaAslaser. IEEE J. Quantum Electron. , 574 - 579
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      • K.H. Hahn , M.R. Tan , Y.M. Houng , S.Y. Wang . Large area multitransverse-mode VCSELs for modal noise reduction in multimodefibre systems. Electron. Lett. , 1482 - 1483
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      • D.M. Kuchta , J. Gamelin , J.D. Walker , J. Lin , K.Y. Lau , J.S. Smith , M. Hong , J.P. Mannaerts . Relative intensity noise of vertical cavity surface emitting lasers. Appl. Phys. Lett. , 1194 - 1196
    4. 4)
      • Arnold, G.: `Influence of optical feedback on the noise behaviour of injection lasers', Proc. 7th ECOC, 1981, Copenhagen.
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