We demonstrate in-band OSNR monitoring using a reconfigurable wavelength-selective switch of ultrahigh bandwidth 1.28 Tbaud signals. Further experiments show the method's resilience against other impairments such as group velocity dispersion and differential group delay.
© 2011 IEEE
Jochen Schröder, Owen Brasier, Jürgen Van Erps, Michaël A. F. Roelens, Steve Frisken, and Benjamin J. Eggleton, "OSNR Monitoring of a 1.28 Tbaud Signal by Interferometry Inside a Wavelength-Selective Switch," J. Lightwave Technol. 29, 1542-1546 (2011)