Generation and long-haul transmission of polarization-switched QPSK at 429 Gb/s | Zendy

David S. Millar | Zendy; Domaniç Lavery | Zendy; Sergejs Makovejs | Zendy; Carsten Behrens | Zendy; Benn C. Thomsen | Zendy; Polina Bayvel | Zendy; Seb J. Savory | Zendy

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Generation and long-haul transmission of polarization-switched QPSK at 429 Gb/s

Author(s) -

David S. Millar,

Domaniç Lavery,

Sergejs Makovejs,

Carsten Behrens,

Benn C. Thomsen,

Polina Bayvel,

Seb J. Savory

Publication year - 2011

Publication title -

optics express

Language(s) - English

Resource type - Journals

SCImago Journal Rank - 1.394

H-Index - 271

ISSN - 1094-4087

DOI - 10.1364/oe.19.009296

Subject(s) - phase shift keying , wavelength division multiplexing , optics , physics , polarization division multiplexing , channel spacing , bit error rate , transmission (telecommunications) , channel (broadcasting) , telecommunications , computer science , wavelength

We demonstrate, for the first time, the generation and transmission of polarization-switched QPSK (PS-QPSK) signals at 42.9 Gb/s. Long-haul transmission of PS-QPSK is experimentally investigated in a recirculating loop and compared with transmission of dual-polarization QPSK (DP-QPSK) at 42.9 Gb/s per channel. A reduction in the required OSNR of 0.7 dB was found at a BER of 3.8 x 10(-3), resulting in an increase in maximum reach of more than 30% for a WDM system operating on a 50 GHz frequency grid. The maximum reach of 13640 km for WDM PS-QPSK is, to the best of our knowledge, the longest distance reported for 40 Gb/s WDM transmission, over an uncompensated link, with standard fiber and amplification.

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