Comparison of polarization-switched QPSK and polarization-multiplexed QPSK at 30 Gbit/s
Artikel i vetenskaplig tidskrift, 2011

We present the first experimental results for polarization-switched QPSK (PS-QPSK) and make a comparison with polarization-multiplexed QPSK. Our measurements confirm the predicted sensitivity advantage of PS-QPSK. We have also studied the single channel performance after transmission over 300 km and support the results with numerical simulations. It is shown that the two modulation formats have similar nonlinear tolerance and that optical dispersion compensation outperforms compensation with digital signal processing in the single channel case. Finally, we propose a novel transmitter for PS-QPSK based on an IQ modulator and two amplitude modulators driven in a push-pull configuration.

Författare

Martin E Sjödin

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Pontus Johannisson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Henk Wymeersch

Chalmers, Signaler och system, Kommunikationssystem, informationsteori och antenner, Kommunikationssystem

Peter Andrekson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Magnus Karlsson

Chalmers, Mikroteknologi och nanovetenskap (MC2), Fotonik

Optics Express

1094-4087 (ISSN)

Vol. 19 8 7839-7846

Styrkeområden

Informations- och kommunikationsteknik

Nanovetenskap och nanoteknik

Ämneskategorier

Telekommunikation

DOI

10.1364/OE.19.007839