Simultaneous nonlinearity mitigation in 92 × 180-Gbit/s PDM-16QAM transmission over 3840 km using PPLN-based guard-band-less optical phase conjugation | Zendy

Takeshi Umeki | Zendy; Takushi Kazama | Zendy; Akihide Sano | Zendy; Kohki Shibahara | Zendy; Kenya Suzuki | Zendy; Masashi Abe | Zendy; Hirokazu Takenouchi | Zendy; Yutaka Miyamoto | Zendy

Open Access

Simultaneous nonlinearity mitigation in 92 × 180-Gbit/s PDM-16QAM transmission over 3840 km using PPLN-based guard-band-less optical phase conjugation

Author(s) -

Takeshi Umeki,

Takushi Kazama,

Akihide Sano,

Kohki Shibahara,

Kenya Suzuki,

Masashi Abe,

Hirokazu Takenouchi,

Yutaka Miyamoto

Publication year - 2016

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.24.016945

Subject(s) - wavelength division multiplexing , optics , quadrature amplitude modulation , channel spacing , bandwidth (computing) , physics , polarization division multiplexing , transmission (telecommunications) , telecommunications , channel (broadcasting) , bit error rate , computer science , wavelength

We experimentally demonstrated the simultaneous nonlinearity mitigation of PDM-16QAM WDM signals using complementary-spectrally-inverted optical phase conjugation (CSI-OPC). We achieved reserved-band-less, guard-band-less, and polarization independent OPC based on periodically poled LiNbO 3 waveguides. By employing the CSI-OPC, 2.325-THz-band (93 × 25 GHz) complementary spectral inversion was achieved while retaining the original WDM bandwidth. A Q 2 -factor improvement of over 0.4 dB and a 5120 km transmission with a Q 2 -factor above the FEC limit were confirmed using a 10-channel WDM transmission at the signal band center and signal band edge. We then demonstrated the mitigation of the nonlinear impairments in a 3840 km long-haul WDM signal transmission for all 92-channel 180-Gbit/s PDM-16QAM quasi-Nyquist-WDM signals.

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