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Bit-error-rate saturation due to mode-partition noise induced by optical feedback in 1.5-µm single longitudinal-mode C3and DFB semiconductor lasers

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5 Author(s)
Olsson, N.A. ; Bell Laboratories, Murray Hil, NJ, USA ; Tsang, W.T. ; Temkin, H. ; Dutta, N.K.
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We report first measurements of the effect of optical feedback on the bit error rate (BER) as a function of received power of single longitudinal mode cleaved-coupled cavity (C3) and distributed-feedback (DFB) semiconductor lasers. Mode-partition noise, induced by the optical feedback, can cause a bit error-rate floor for large optical feedbacks, but it is shown that high-performance C3lasers and especially DFB lasers can withstand very large optical feedbacks without system degradation.

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Lightwave Technology, Journal of  (Volume:3 ,  Issue: 2 )