4 Tb/s transmission reach enhancement using 10× 400 Gb/s super-channels and polarization insensitive dual band optical phase conjugation

AD Ellis, M Tan, MA Iqbal, MAZ Al-Khateeb… - Journal of lightwave …, 2016 - opg.optica.org
In this paper, we experimentally demonstrate the benefit of polarization insensitive dual-
band optical phase conjugation for up to ten 400 Gb/s optical super-channels using a …

PPLN-based optical parametric amplification for wideband WDM transmission

S Shimizu, T Kobayashi, T Kazama… - Journal of Lightwave …, 2022 - ieeexplore.ieee.org
The optical parametric amplifier (OPA) has attractive features for optical communications,
such as a wideband, high gain, and fast transient response. In addition, by using idler light …

Simultaneous nonlinearity mitigation in 92× 180-Gbit/s PDM-16QAM transmission over 3840 km using PPLN-based guard-band-less optical phase conjugation

T Umeki, T Kazama, A Sano, K Shibahara, K Suzuki… - Optics …, 2016 - opg.optica.org
We experimentally demonstrated the simultaneous nonlinearity mitigation of PDM-16QAM
WDM signals using complementary-spectrally-inverted optical phase conjugation (CSI …

Effect of gain saturation on wideband WDM signal in PPLN-based optical parametric amplifier

S Shimizu, T Kobayashi, T Kazama… - Journal of Lightwave …, 2023 - opg.optica.org
The periodically poled LiNbO_3 (PPLN) based optical parametric amplifier (OPA) is a
technology that contributes to the construction of multi-band wavelength-division …

Waveband-shift-free optical phase conjugator for spectrally efficient fiber nonlinearity mitigation

I Sackey, C Schmidt-Langhorst… - Journal of Lightwave …, 2018 - ieeexplore.ieee.org
We discuss a novel broadband, polarization-insensitive, and wavelength-shift-free optical
phase conjugator (OPC). In the OPC scheme, the original input signal is inherently …

Hybrid Lumped Repeater Using PPLN-Based High-Gain Optical Parametric Phase Conjugators and EDFAs for C+ L-Band Transmission

S Shimizu, T Kobayashi, T Kazama… - Journal of Lightwave …, 2024 - ieeexplore.ieee.org
We propose a C+ L-band lumped repeater configuration using optical phase conjugators
(OPCs) and erbium-doped fiber amplifiers (EDFAs). The OPC based on a highly efficient …

Fiber nonlinearity mitigation using optical phase conjugation based on inter-modal FWM

I Sackey, C Schmidt-Langhorst… - 45th European …, 2019 - ieeexplore.ieee.org
We experimentally demonstrate an all-optical nonlinear-impairment mitigation by a mid-link
optical phase conjugation based on inter-modal four-wave mixing in a 2-mode graded-index …

Signal processing techniques for reducing the impact of fiber nonlinearities on system performance

JC Cartledge, AD Ellis, A Shiner… - Optical Fiber …, 2016 - opg.optica.org
Signal Processing Techniques for Reducing the Impact of Fiber Nonlinearities on System
Performance Page 1 Th4F.5.pdf OFC 2016 © OSA 2016 Signal Processing Techniques for …

Nonlinearity mitigation for multi-channel 64-QAM signals in a deployed fiber link through optical phase conjugation

S Yoshima, Z Liu, Y Sun, KRH Bottrill… - Optical Fiber …, 2016 - opg.optica.org
Nonlinearity Mitigation for Multi-channel 64-QAM Signals in a Deployed Fiber Link through
Optical Phase Conjugation Page 1 Th4F.4.pdf OFC 2016 © OSA 2016 Nonlinearity Mitigation …

Optical Transmission Technologies

I Morita, T Hirooka, H Takara, Y Awaji… - … -Division Multiplexing in …, 2022 - Springer
For a drastic increase of the optical fiber capacity, extremely advanced optical transmission
technologies are indispensable. This chapter reviews such technologies including …