scholarly journals Single-channel 153 Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 83 bit/s/Hz

2019 ◽  
Vol 27 (20) ◽  
pp. 28952 ◽  
Author(s):  
Masato Yoshida ◽  
Kosuke Kimura ◽  
Taro Iwaya ◽  
Keisuke Kasai ◽  
Toshihiko Hirooka ◽  
...  
Keyword(s):  
Spectral Efficiency ◽  
Single Channel ◽  
Pulse Transmission ◽  
Nyquist Pulse

scholarly journals Single-channel 768 Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 97 bit/s/Hz

2018 ◽  
Vol 26 (13) ◽  
pp. 17418 ◽  
Author(s):  
Kosuke Kimura ◽  
Junpei Nitta ◽  
Masato Yoshida ◽  
Keisuke Kasai ◽  
Toshihiko Hirooka ◽  
...  
Keyword(s):  
Spectral Efficiency ◽  
Single Channel ◽  
Pulse Transmission ◽  
Nyquist Pulse

scholarly journals Single-channel 384 Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 106 bit/s/Hz

2017 ◽  
Vol 25 (13) ◽  
pp. 15199 ◽  
Author(s):  
Junpei Nitta ◽  
Masato Yoshida ◽  
Kosuke Kimura ◽  
Keisuke Kasai ◽  
Toshihiko Hirooka ◽  
...  
Keyword(s):  
Spectral Efficiency ◽  
Single Channel ◽  
Pulse Transmission ◽  
Nyquist Pulse

scholarly journals Single-channel 192 Tbit/s, Pol-Mux-64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 75 bit/s/Hz

2014 ◽  
Vol 22 (20) ◽  
pp. 23776 ◽  
Author(s):  
David Odeke Otuya ◽  
Keisuke Kasai ◽  
Masato Yoshida ◽  
Toshihiko Hirooka ◽  
Masataka Nakazawa
Keyword(s):  
Spectral Efficiency ◽  
Single Channel ◽  
Pulse Transmission ◽  
Nyquist Pulse

scholarly journals Single-channel 102 Tbit/s (256 Tbaud) optical Nyquist pulse transmission over 300 km

2018 ◽  
Vol 26 (21) ◽  
pp. 27221 ◽  
Author(s):  
Toshihiko Hirooka ◽  
Ryoya Hirata ◽  
Jianping Wang ◽  
Masato Yoshida ◽  
Masataka Nakazawa
Keyword(s):  
Single Channel ◽  
Pulse Transmission ◽  
Nyquist Pulse

Single-Channel 1.28 Tbit/s Optical Nyquist Pulse Transmission over 3000 km with Roll-off Factor Optimization

2021 ◽  
Author(s):  
Aoi Watanabe ◽  
Masato Yoshida ◽  
Toshihiko Hirooka ◽  
Masataka Nakazawa
Keyword(s):  
Single Channel ◽  
Pulse Transmission ◽  
Nyquist Pulse

Single-Channel 10.2 Tbit/s PDM-DQPSK Nyquist Pulse Transmission over 300 km

2018 ◽  
Author(s):  
Toshihiko Hirooka ◽  
Ryoya Hirata ◽  
Jianping Wang ◽  
Masato Yoshida ◽  
Masataka Nakazawa
Keyword(s):  
Single Channel ◽  
Pulse Transmission ◽  
Nyquist Pulse

1.92 Tbit/s, 64 QAM Coherent Nyquist Pulse Transmission over 150 km with a Spectral Efficiency of 7.5 bit/s/Hz

2014 ◽  
Author(s):  
David Odeke Otuya ◽  
Keisuke Kasai ◽  
Toshihiko Hirooka ◽  
Masato Yoshida ◽  
Masataka Nakazawa
Keyword(s):  
Spectral Efficiency ◽  
Pulse Transmission ◽  
Nyquist Pulse

Tributary Mapping Multiplexing an Efficient Technique for High Speed Fiber Optic Communication

2018 ◽  
Vol 6 (2) ◽  
Author(s):  
Usman Illahi ◽  
Javed Iqbal ◽  
Muhammad Ismail Sulaiman ◽  
Muhammad Alam ◽  
Mazliham Mohd Su'ud
Keyword(s):  
Spectral Efficiency ◽  
High Speed ◽  
Fiber Optic ◽  
Single Channel ◽  
Efficient Technique ◽  
High Dispersion ◽  
Optical Filtering ◽  
Fiber Optic Communication ◽  
Optic Communication ◽  
Dispersion Tolerance

<p>A novel technique of multiplexing called Tributary Mapping Multiplexing (TMM) is<br />applied to a single channel wavelength division multiplexing system and performance is monitored on the basis of simulation results. To elaborate the performance of TMM in this paper, a 4-User TMM system over single wavelength channel is demonstrated. TMM showed significant tolerance against narrow optical filtering as compared to that of conventional TDM at the rate of 40 Gbit/s. The above calculations are made by optical filter bandwidth and dispersion tolerance that was allowed at minimum. The spectral efficiency achieved by this TMM was 1 b/s/Hz and it was executed by using transmitters and receivers of 10 Gbit/s without polarized multiplexing. The high spectral efficiency, high dispersion tolerance and tolerance against strong optical filtering makes TMM an efficient technique for High<br />Speed Fiber Optic Communication.</p>

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