Adaptive 4∼64 QAM real-time coherent optical transmission over 320 km with FPGA-based transmitter and receiver

Masato Yoshida; Toshihiko Hirooka; Keisuke Kasai; Masataka Nakazawa

doi:10.1364/OE.22.016520

Adaptive 4∼64 QAM real-time coherent optical transmission over 320 km with FPGA-based transmitter and receiver

Masato Yoshida, Toshihiko Hirooka, Keisuke Kasai, Masataka Nakazawa

Broadband Engineering Division

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

We demonstrate the first real-time adaptive optical coherent QAM transmission with variable multiplicities (4-, 16- and 64-QAM) using an FPGA-based transmitter and receiver. Rate-variable transmission (20∼60 Gbit/s) was successfully achieved with a polarization multiplexing scheme at 5 Gsymbol/s over 320 km, where the OSNR margins were increased by 9 and 17 dB, respectively, by changing the modulation level from 64 to 16 and 4.

Original language	English
Pages (from-to)	16520-16527
Number of pages	8
Journal	Optics Express
Volume	22
Issue number	13
DOIs	https://doi.org/10.1364/OE.22.016520
Publication status	Published - 2014 Jun 30

ASJC Scopus subject areas

Atomic and Molecular Physics, and Optics

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abstract = "We demonstrate the first real-time adaptive optical coherent QAM transmission with variable multiplicities (4-, 16- and 64-QAM) using an FPGA-based transmitter and receiver. Rate-variable transmission (20∼60 Gbit/s) was successfully achieved with a polarization multiplexing scheme at 5 Gsymbol/s over 320 km, where the OSNR margins were increased by 9 and 17 dB, respectively, by changing the modulation level from 64 to 16 and 4.",

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AU - Yoshida, Masato

AU - Hirooka, Toshihiko

AU - Kasai, Keisuke

AU - Nakazawa, Masataka

PY - 2014/6/30

Y1 - 2014/6/30

N2 - We demonstrate the first real-time adaptive optical coherent QAM transmission with variable multiplicities (4-, 16- and 64-QAM) using an FPGA-based transmitter and receiver. Rate-variable transmission (20∼60 Gbit/s) was successfully achieved with a polarization multiplexing scheme at 5 Gsymbol/s over 320 km, where the OSNR margins were increased by 9 and 17 dB, respectively, by changing the modulation level from 64 to 16 and 4.

AB - We demonstrate the first real-time adaptive optical coherent QAM transmission with variable multiplicities (4-, 16- and 64-QAM) using an FPGA-based transmitter and receiver. Rate-variable transmission (20∼60 Gbit/s) was successfully achieved with a polarization multiplexing scheme at 5 Gsymbol/s over 320 km, where the OSNR margins were increased by 9 and 17 dB, respectively, by changing the modulation level from 64 to 16 and 4.

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Adaptive 4∼64 QAM real-time coherent optical transmission over 320 km with FPGA-based transmitter and receiver

Abstract

ASJC Scopus subject areas

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