Optical frequency comb and Nyquist pulse generation with integrated silicon modulators

S Liu, K Wu, L Zhou, L Lu, B Zhang… - IEEE Journal of …, 2019 - ieeexplore.ieee.org
We demonstrate nine-line optical frequency comb (OFC) and sinc-shaped Nyquist pulse
generation based on two cascaded silicon Mach-Zehnder modulators. The OFC has a …

2- m Free-Space Data Transmission Based on an Actively Mode-Locked Holmium-Doped Fiber Laser

P Lin, T Wang, W Ma, J Chen… - IEEE Photonics …, 2020 - ieeexplore.ieee.org
We experimentally demonstrate a 2-μm free-space data transmission system in a simulated
atmospheric turbulent device with an actively mode-locked holmium-doped fiber laser. The …

Single-channel 15.3 Tbit/s, 64 QAM coherent Nyquist pulse transmission over 150 km with a spectral efficiency of 8.3 bit/s/Hz

M Yoshida, K Kimura, T Iwaya, K Kasai, T Hirooka… - Optics …, 2019 - opg.optica.org
We report the first single-channel 15.3 Tbit/s, 1.28 Tbaud, 64 QAM transmission using 670 fs
coherent Nyquist pulses. We newly constructed an optical gate to improve the signal-to …

Analysis of non-idealities in the generation of reconfigurable sinc-shaped optical Nyquist pulses

S De, A Misra, R Das, T Kleine-Ostmann… - IEEE …, 2021 - ieeexplore.ieee.org
Optical sinc-shaped Nyquist pulses are widely used in microwave photonics, optical signal
processing, and optical telecommunications due to their numerous advantages, like …

Parity-time symmetry enabled ultra-efficient nonlinear optical signal processing

C Kim, X Lu, D Kong, N Chen, Y Chen, LK Oxenløwe… - Elight, 2024 - Springer
Nonlinear optical signal processing (NOSP) has the potential to significantly improve the
throughput, flexibility, and cost-efficiency of optical communication networks by exploiting …

Reconfigurable and real-time high-bandwidth Nyquist signal detection with low-bandwidth in silicon photonics

A Misra, C Kress, K Singh, J Meier, T Schwabe… - Optics …, 2022 - opg.optica.org
We demonstrate for the first time, to the best of our knowledge, reconfigurable and real-time
orthogonal time-domain detection of a high-bandwidth Nyquist signal with a low-bandwidth …

Microwave pulse generation with a silicon dual-parallel modulator

S Liu, K Wu, L Zhou, L Lu, B Zhang… - Journal of lightwave …, 2020 - ieeexplore.ieee.org
Compact and integrated microwave pulse generation can benefit various applications in
integrated microwave photonics. We demonstrate high-quality microwave pulse generation …

Roll-off factor analysis of optical Nyquist pulses generated by an on-chip Mach-Zehnder modulator

S De, K Singh, C Kress, R Das… - IEEE Photonics …, 2021 - ieeexplore.ieee.org
Optical sinc-shaped Nyquist pulses are promising in photonic signal processing and high-
speed optical data transmission due to their orthogonality and inter-symbol interference (ISI) …

Real-time adaptive ultrashort pulse compressor for dynamic group delay dispersion compensation

SY Chang, JC Chang, CJ Yang, SW Haung… - Optics …, 2022 - opg.optica.org
The optical dispersion effect in ultrafast pulse laser systems broadens the laser pulse
duration and reduces the theoretical peak power. The present study proposes an adaptive …

Generation and autocorrelation traces investigation of Nyquist pulse sequences

J Li, Y Yao, D Jia, C Ge, Z Wang, T Yang - Optics Communications, 2024 - Elsevier
We propose a novel approach for generating Nyquist pulse sequences using a dual parallel
Mach-Zehnder modulator (DPMZM) and a phase modulator (PM). The generated Nyquist …