Linear and nonlinear crosstalk suppression for DWDM RZ-DPSK transmitter using a saturated SOA as power booster amplifier
Abbreviated Journal Title
IEEE Photonics Technol. Lett.
crosstalk suppression; four-wave mixing (FWM); return-to-zero; differential phase-shift keying (RZ-DPSK); semiconductor optical; amplifier (SOA); OPTICAL PULSES; Engineering, Electrical & Electronic; Optics; Physics, Applied
Saturated semiconductor optical amplifiers (SOAs) can be used as booster amplifiers for dense wavelength-division-multiplexing (DWDM) return-to-zero differential phase-shift keying (RZ-DPSK) transmitters. By introducing time interleaving (TI), both linear crosstalk induced by WDM components and nonlinear crosstalk induced by SOA nonlinearities are suppressed. Receiver sensitivities for four-channel DWDM RZ-DPSK signals with 100- and 50-GHz channel spacing were improved 2.2 and 4.2 dB, respectively, by applying proper TI between adjacent channels. A 1-dB gain enhancement was also achieved.
Ieee Photonics Technology Letters
"Linear and nonlinear crosstalk suppression for DWDM RZ-DPSK transmitter using a saturated SOA as power booster amplifier" (2006). Faculty Bibliography 2000s. 6351.