XPM reduction in hybrid 10G/40G transmission using 10-Gb/s narrow-filtered DPSK modulation.
We propose a possible improvement for optical hybrid transmission systems, based on 40G differential quadrature shift Keying (DQPSK) and 10G differential phase shift keying (DPSK) received by means of a Gaussian narrow filter. We report a reduced cross phase modulation (XPM), at the cost of a slightly more complex setup. This technique is especially effective for systems with low inline dispersion and offers similar performances on different types of fiber.
Information Engineering Department, University of Parma, V.le G. Usberti 181/A, 43100 Parma, Italy. bertolini@tlc.unipr.it
Marco
M
Bertolini
Paolo
P
Serena
Nicola
N
Rossi
Alberto
A
Bononi
D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D008872:Microwaves; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted / Q000295:instrumentation*; D013685:Telecommunications / Q000295:instrumentation*