The Atacama Large Millimeter/Submillimeter Array (ALMA) is an international radio
telescope under construction in the Atacama Desert of northern Chile. ALMA is situated on a …

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 …

Terahertz (THz) wave can offer over 100-Gb/s wireless transmission by the use of wide
spectrum. Due to features of high-frequency waves such as lightwaves, THz can have high …

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 …

This work proposes a cost-effective, continuously tunable and filterless optical millimeter-
wave (MMW) signal generation employing frequency octupling. Optical MMW signals with …

We have demonstrated a microwave transfer over a 204-km noisy urban fiber link by a
cascaded system with 2 stages, which connected 10-GHz and 1-GHz transfer systems in …

We have developed a radio-frequency (RF) dissemination system using optical fibers. The
phase noise induced during the transmission is actively cancelled by the compensation …

A 90-GHz frequency reference is synthesized through harmonic generation from a 30-GHz
coupled optoelectronic oscillator. The 30-GHz signal and its third harmonic feature an …

We performed measurements of carrier-phase-based two-way satellite time and frequency
transfer (TWST-FT) with an A/D sampler and conventional TWSTFT system. We found that …