Abstract
In this work, we propose a novel self-seeded WDM-PON topology. Unlike previous
works, in our case, the self-seeding occurs in RSOAs located at the OLT, allowing
upstream transmission based on carrier remodulation at the ONT. Thus, a single
wavelength per user can be employed for both traffic directions while eliminating the
need for an external broadband light source at the CO. A maximum bidirectional 2.5 dB
power penalty for a BER of 10-10 was obtained for an injection power level of
-22 dBm into the ONT RSOAs. We also investigate the tolerance of downstream BER to
downstream extinction ratio (ERD) and self-seeding power (Pss), as
well as analyze the impact of upstream extinction level ERUP, injection
power (Pinj) and ERD levels on upstream BER performance, on
symmetric 1.25 Gbps OOK transmission over 20 km without DTLA and FFCI mechanisms. We
have successfully demonstrated downstream error free transmission (BER of
10-12) for an ERD as low as 3.5 dB.
© 2013 IEEE
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