Abstract
We investigated the impact of in-band crosstalk on the system's performance in wavelength-locked Fabry-Pérot laser-diode (FP-LD)-based wavelength-division-multiplexed passive optical networks (WDM PONs). As expected, wavelength-locked FP-LD, which was injected by using an incoherent broadband light source, was more tolerant to in-band crosstalk than distributed-feedback (DFB) laser diode. A 1-dB power penalty in the wavelength-locked FP-LD-based PON system was observed when the crosstalk-to-signal ratio was ∼ - 9 dB. We also compared the measured power penalties with the calculated power penalties. It has been shown that the in-band crosstalk-induced power penalty in wavelength-locked FP-LD-based WDM PON could be estimated properly by taking into account both effects of power addition and signal-crosstalk beat noise.
| Original language | English |
|---|---|
| Pages (from-to) | 596-598 |
| Number of pages | 3 |
| Journal | IEEE Photonics Technology Letters |
| Volume | 21 |
| Issue number | 9 |
| DOIs | |
| State | Published - 1 May 2009 |
Keywords
- Crosstalk
- Fabry-Pérot laser diode (FP-LD)
- Passive optical network (PON)
- Wavelength-division multiplexing (WDM)