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Opt Express. 2011 Dec 12;19(26):B722-7. doi: 10.1364/OE.19.00B722.

Optimisation of SOA-REAMs for hybrid DWDM-TDMA PON applications.

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  • 1Photonics System Group, Tyndall National Institute, University College Cork, Ireland.


We demonstrate how loss-optimised, gain-saturated SOA-REAM based reflective modulators can reduce the burst to burst power variations due to differential access loss in the upstream path in carrier distributed passive optical networks by 18 dB compared to fixed linear gain modulators. We also show that the loss optimised device has a high tolerance to input power variations and can operate in deep saturation with minimal patterning penalties. Finally, we demonstrate that an optimised device can operate across the C-Band and also over a transmission distance of 80 km.

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