Demonstration of wireless transmission of QPSK signals at 2 THz

I Morohashi, Y Irimajiri, A Kawakami… - 2023 Optical Fiber …, 2023 - ieeexplore.ieee.org
Demonstration of Wireless Transmission of QPSK Signals at 2 THz Page 1 Demonstration of
Wireless Transmission of QPSK Signals at 2 THz Isao Morohashi, Yoshihisa Irimajiri, Akira …

Wireless Signal Transmission at the 2 and 3 THz-Band Enabled by Photonics-Based Transmitter and Hot Electron Bolometer Mixer

I Morohashi, Y Irimajiri, A Kawakami… - IEEE Journal of …, 2023 - ieeexplore.ieee.org
We have demonstrated terahertz (THz) wireless transmission of quadrature phase-shift
keying (QPSK) signals at 2 and 3 THz-bands. Despite higher atmospheric attenuation at …

THz Communication System at 1.8 THz by Photonics-Based Transmitter and Electronics-based Receiver

I Morohashi, Y Irimajiri, A Kawakami… - … Waves (IRMMW-THz …, 2023 - ieeexplore.ieee.org
We have demonstrated wireless transmission of quadrature phase shift keying (QPSK)
signals at 1.8 THz and investigated usability of the frequency multiplier as a local oscillator …

Fiber-remoted 20-Gbaud QPSK transmission at 300 GHz

A Kanno, N Sekine, I Hosako… - … Topical Meeting on …, 2015 - ieeexplore.ieee.org
300-GHz multilevel signal transmission over optical fibers and air is demonstrated using
advanced optical communication technology including optical frequency comb generation …

Multilevel signal transmission at 600 GHz

A Kanno, PT Dat, I Morohashi, I Hosako… - … (MWP) and the 2014 …, 2014 - ieeexplore.ieee.org
Terahertz-wave signal transmission is demonstrated using quadrature amplitude modulation
(QAM) by photonics. Small frequency fluctuations using a frequency-locked optical …

Demonstration of 8-channel 32-Gbit/s QPSK wireless communications at 0.28-0.33 THz using 2 frequency, 2 polarization, and 2 mode multiplexing

X Su, H Zhou, K Zou, A Minoofar, H Song… - Optical Fiber …, 2021 - opg.optica.org
We experimentally demonstrate a 32-Gbit/s QPSK THz wireless communication link using 2
frequencies, 2 polarizations and 2 OAM modes at~ 0.3 THz. By tuning the frequency of the …

[PDF][PDF] Phase-locking of a 3.1 THz quantum cascade laser to terahertz reference generated by a frequency comb

Y Irimajiri, M Kumagai, I Morohashi, A Kawakami… - ISSTT 2014 …, 2014 - nrao.edu
We are developing a low noise heterodyne receiver at 3THz band for applications of
atmospheric and astronomical research and for application of wireless communications. We …

100 Gb/s multicarrier THz wireless transmission system with high frequency stability based on a gain-switched laser comb source

H Shams, T Shao, MJ Fice… - IEEE Photonics …, 2015 - ieeexplore.ieee.org
We propose and experimentally demonstrate a photonic multichannel terahertz (THz)
wireless system with up to four optical subcarriers and total capacity as high as 100 Gb/s by …

Analysis of operating regimes of terahertz quantum cascade laser frequency combs

P Tzenov, D Burghoff, Q Hu… - IEEE Transactions on …, 2017 - ieeexplore.ieee.org
In recent years, quantum cascade lasers (QCLs) have shown tremendous potential for the
generation of frequency combs in the mid-infrared and terahertz portions of the …

Quantum dash mode locked lasers as optical comb sources for OFDM superchannels

R Rosales, RT Watts, K Merghem… - 2012 38th European …, 2012 - ieeexplore.ieee.org
Quantum dash mode locked lasers as optical comb sources for OFDM superchannels Page
1 Mo.1.E.5.pdf ECOC Technical Digest © 2012 OSA Quantum Dash Mode Locked Lasers as …