Optical diversity transmission using WDM signal and phase-conjugate lights through multi-core fiber | Zendy

Masafumi Koga | Zendy; Mitsuki Moroi | Zendy; H. Takara | Zendy

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Optical diversity transmission using WDM signal and phase-conjugate lights through multi-core fiber

Author(s) -

Masafumi Koga,

Mitsuki Moroi,

H. Takara

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.24.009340

Subject(s) - optics , wavelength division multiplexing , transmission (telecommunications) , span (engineering) , physics , phase (matter) , telecommunications , computer science , engineering , wavelength , civil engineering , quantum mechanics

This paper proposes a maximum-ratio combining (MRC) scheme for a WDM signal and phase-conjugate pair (PCP) diversity transmission to cancel nonlinear phase-shift. A transfer function approximation for nonlinear phase-shift cancellation is formulated. It shows, with the help of a numerical calculation, that span-by-span chromatic dispersion compensation is more effective than the lumped equivalent at the receiver. This is confirmed in a 2-core diversity 5 channel WDM transmission experiment over 3-spans of 60km MCF with 25 Gbit/s-QPSK PCP. The peak Q-value was enhanced by 3.6dB through MRC, resulting in superior bitrate-distance product and optical power density limit, compared to twice the single core transmission.

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