The generation of a 40-Gb/s 16-QAM radio-over-fiber (RoF) signal and its demodulation of
the wireless signal transmitted over free space of 30 mm in W-band (75–110 GHz) is …

Current status and the future perspective of digital coherent technology for optical fiber and
radio-over-fiber (RoF) transmission systems will be reviewed. For the starter, we will review …

Optical frequency-modulated continuous-wave (FM-CW) signal generation with a bandwidth
of 35 GHz and a pulse duration of 1 μs in the range of 75-110 GHz is demonstrated with an …

We propose a millimeter-wave (MMW) coherent radio-over-fiber (RoF) transmission system
for application to an access network with a direct broadband last-mile wireless connection to …

Coherent terahertz signal transmission with multilevel modulation and demodulation is
demonstrated using an optical sub-harmonic IQ mixer (SHIQM), which consists of optical …

Multi-input multi-output (MIMO) transmission of two millimeter-wave radio signals seamlessly
converted from polarization-division-multiplexed quadrature-phase-shift-keying optical …

We demonstrate 20-Gb/s W-band wireless transmission in free space with a distance of
30mm using optical signal generation. Optically synthesized QPSK signal and direct optical …

We propose and experimentally demonstrate the generation of baseband ultra-wideband
(UWB) monocycle and doublet pulses using one dual-parallel Mach-Zehnder modulator. We …

This letter investigates all-optical frequency conversion of ultra-wideband (UWB) signals for
UWB-over-fiber up-link and down-link systems. An electrooptical Mach-Zehnder modulator …

A photonic multi-format background-free binarily modulated microwave signal generator
using a single dual-polarization dual-parallel Mach–Zehnder modulator is proposed and …