Simultaneous detection of 10-Gbit/s QPSK × 2-ch Fourier-encoded synchronous OCDM signals with digital coherent receiver | Zendy

Yasuhiro Okamura | Zendy; Osamu Iijima | Zendy; Shimizu Satoshi | Zendy; Naoya Wada | Zendy; Masanori Hanawa | Zendy

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Simultaneous detection of 10-Gbit/s QPSK × 2-ch Fourier-encoded synchronous OCDM signals with digital coherent receiver

Author(s) -

Yasuhiro Okamura,

Osamu Iijima,

Shimizu Satoshi,

Naoya Wada,

Masanori Hanawa

Publication year - 2013

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.21.003298

Subject(s) - phase shift keying , multiplexing , fourier transform , computer science , optics , physics , digital signal processing , channel (broadcasting) , electronic engineering , bit error rate , telecommunications , engineering , quantum mechanics

We experimentally demonstrate the simultaneous detection of 10-Gbit/s quadrature phase shift keying (QPSK) × 2-channel Fourier-encoded synchronous optical code division multiplexing (FE-SOCDM) signals using a digital coherent receiver, for the first time. First, we analytically verify that simultaneous detection can be achieved with an N-point discrete Fourier transform (DFT) using digital signal processing (DSP) because the N-channel Fourier encoding corresponds to an N × N inverse DFT, then the operation is experimentally confirmed. Simultaneous detection of 10-Gbit/s QPSK × 2-channel FE-SOCDM signals is evaluated. The proposed scheme dramatically expands the capability of OCDM systems.

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