High capacity transport—100G and beyond

K Roberts, SH Foo, M Moyer, M Hubbard… - Journal of Lightwave …, 2014 - ieeexplore.ieee.org
For excellent cost and performance, modern high capacity transport systems use digital
coherent processing to overcome many physical barriers. Coherent methods are explained …

320 Gb/s Nyquist OTDM received by polarization-insensitive time-domain OFT

H Hu, D Kong, E Palushani, M Galili, HCH Mulvad… - Optics …, 2013 - opg.optica.org
We have demonstrated the generation of a 320 Gb/s Nyquist-OTDM signal by rectangular
filtering on an RZ-OTDM signal with the filter bandwidth (320 GHz) equal to the baud rate …

Investigation on Nyquist pulse generation using a single dual-parallel Mach-Zehnder modulator

J Wu, J Zang, Y Li, D Kong, J Qiu, S Zhou, J Shi… - Optics express, 2014 - opg.optica.org
The generation of Nyquist pulses with a dual parallel Mach-Zehnder modulator (DPMZM)
driven by a single RF signal is demonstrated theoretically and experimentally. A complete …

High-performance TDM demultiplexing of coherent Nyquist pulses using time-domain orthogonality

K Harako, DO Otuya, K Kasai, T Hirooka… - Optics express, 2014 - opg.optica.org
We propose a simple and high-performance scheme for demultiplexing coherent Nyquist
TDM signals by photo-mixing on a photo-detector with Nyquist LO pulses. This scheme …

Ultrafast Nyquist OTDM demultiplexing using optical Nyquist pulse sampling in an all-optical nonlinear switch

T Hirooka, D Seya, K Harako, D Suzuki… - Optics …, 2015 - opg.optica.org
We propose the ultrahigh-speed demultiplexing of Nyquist OTDM signals using an optical
Nyquist pulse as both a signal and a sampling pulse in an all-optical nonlinear switch. The …

Transmission and pass-drop operations of mixed baudrate Nyquist OTDM-WDM signals for all-optical elastic network

HN Tan, T Inoue, T Kurosu, S Namiki - Optics Express, 2013 - opg.optica.org
We propose the use of Nyquist OTDM-WDM signal for highly efficient, fully elastic all-optical
networks. With the possibility of generation of ultra-coarse yet flexible granular channels …

640 Gbaud (1.28 Tbit/s/ch) optical Nyquist pulse transmission over 525 km with substantial PMD tolerance

K Harako, D Seya, T Hirooka, M Nakazawa - Optics Express, 2013 - opg.optica.org
We report a substantial increase in PMD tolerance in a single-channel ultrahigh-speed
transmission using optical Nyquist pulses. We demonstrate both analytically and …

Optical Nyquist filtering for elastic OTDM signals: Fundamentals and demonstrations

HN Tan, T Inoue, K Tanizawa… - Journal of Lightwave …, 2015 - ieeexplore.ieee.org
Optical Nyquist filtering offers an efficient method to generate ultra-high speed optical time
division multiplexing (OTDM) signals with bandwidth equal to the symbol rate without …

Single-channel 1.92 Tbit/s, 64 QAM coherent Nyquist orthogonal TDM transmission with a spectral efficiency of 10.6 bit/s/Hz

DO Otuya, K Kasai, T Hirooka… - Journal of Lightwave …, 2015 - ieeexplore.ieee.org
We have proposed a coherent optical Nyquist pulse and its high-speed optical time division
multiplexing (OTDM), in which data signals can be transmitted at a bandwidth as low as the …

Optical cascaded reservoir computing for realization of dual-channel high-speed OTDM chaotic secure communication via four optically pumped VCSEL

D Zhong, J Zhang, W Deng, P Hou, Q Wu, Y Chen… - Optics …, 2023 - opg.optica.org
In this work, we propose a chaotic secure communication system with optical time division
multiplexing (OTDM), using two cascaded reservoir computing systems based on multi …