Abstract
We have investigated the dependence of in-band incoherent crosstalk-induced power penalties on seed source in reflective semiconductor optical amplifier (RSOA)-based wavelength-division-multiplexed passive optical networks (WDM-PONs). The in-band crosstalk penalties in an RSOA-based WDM-PON were measured with two different seed sources; a broadband light source (BLS) and a distributed feedback laser diode (DFB-LD). The 1-dB power penalties with a BLS seeded and a DFB-LD seeded RSOA source were observed when the crosstalk-to-signal ratios were ∼-14 and -16 dB, respectively. From the results, we found that the directly-modulated RSOA sources with a BLS or a DFB-LD seed source were more tolerant to the in-band crosstalk than an externally-modulated DFB-LD source. In addition, we confirmed that the in-band crosstalk-induced power penalty in the RSOA-based WDM-PONs could be calculated with a proper estimation of an equivalent optical source bandwidth.
| Original language | English |
|---|---|
| Article number | 6129389 |
| Pages (from-to) | 581-583 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 24 |
| Issue number | 7 |
| DOIs | |
| State | Published - 2012 |
Keywords
- Crosstalk
- passive optical network
- reflective semiconductor optical amplifier