Dual-carrier dual-polarization IQ modulator using a complementary frequency shifter

H Yamazaki, T Saida, T Goh, S Mino… - IEEE Journal of …, 2013 - ieeexplore.ieee.org
We discuss the detailed characteristics of a dual-carrier dual-polarization (DP) in-phase-and-
quadrature (IQ) modulator. As the dual-carrier generator, we used a complementary …

Dual-carrier dual-polarization IQ modulator driven with high-speed DACs for 400-Gb/s applications

H Yamazaki, T Goh, T Saida, Y Hashizume… - … and Exhibition on …, 2012 - opg.optica.org
An optical dual-carrier generator, four parallel IQ modulators, and a polarization multiplexer
are integrated in a single modulator with a silica-LiNbO 3 hybrid configuration. By driving the …

Dual-carrier IQ modulator with a complementary frequency shifter

H Yamazaki, T Saida, T Goh, A Mori, S Mino - Optics express, 2011 - opg.optica.org
We devised a dual-carrier IQ modulator consisting of a novel complementary frequency
shifter (CFS) and two IQ modulators. The CFS generates two optical subcarriers from a …

64QAM Modulator With a Hybrid Configuration of Silica PLCs and LiNbO Phase Modulators

H Yamazaki, T Yamada, T Goh… - IEEE Photonics …, 2010 - ieeexplore.ieee.org
Quadrature amplitude modulation (QAM) is a promising approach for increasing the spectral
efficiency of wavelength-division-multiplexing transmission, but its optical implementation is …

Generation of square or hexagonal 16-QAM signals using a dual-drive IQ modulator driven by binary signals

S Yan, X Weng, Y Gao, C Lu, APT Lau, Y Ji, L Liu… - Optics …, 2012 - opg.optica.org
We propose a simple square or hexagonal 16-QAM signal generation technique using a
commercially available dual-drive IQ modulator driven by four binary electrical signals with …

An ultracompact DP-QPSK demodulator based on multimode interference and photonic crystals

L Xiang, Y Xu, Y Yu, X Zhang - Journal of lightwave technology, 2012 - opg.optica.org
We propose a novel scheme that combines a polarization-beam splitter (PBS) and a 90°
hybrid into a single device to demodulate the dual-polarization quadrature phase-shift …

86-Gbit/s differential quadrature phase-shift-keying modulator using hybrid assembly technique with planar lightwave circuit and LiNbO3 devices

T Yamada, Y Sakamaki, T Saida… - LEOS 2006-19th …, 2006 - ieeexplore.ieee.org
86-Gbit/s differential quadrature phase-shift-keying modulator using hybrid assembly technique
with planar lightwave circuit and Page 1 86-Gbit/s differential quadrature phase-shift-keying …

Reconfigurable multilevel transmitter using monolithically integrated quad Mach-Zehnder IQ modulator for optical 16-QAM and 8-PSK generation

GW Lu, T Sakamoto, A Chiba, T Kawanishi… - Optics …, 2011 - opg.optica.org
We propose and demonstrate a reconfigurable multilevel transmitter using a monolithically-
integrated quad Mach-Zehnder in-phase/quadrature (QMZ-IQ) modulator with binary driving …

Generation of 64-QAM signals using a single dual-drive IQ modulator driven by 4-level and binary electrical signals

S Yan, D Wang, Y Gao, C Lu, APT Lau… - 2013 Optical Fiber …, 2013 - ieeexplore.ieee.org
Generation of 64-QAM signals using a single dual-drive IQ modulator driven by 4-level and
binary electrical signals Page 1 OM3C.5.pdf OFC/NFOEC Technical Digest © 2013 OSA …

Versatile offset-free 16-QAM single dual-drive IQ modulator driven by binary signals

A Malacarne, F Fresi, J Klamkin, L Potì - Optics letters, 2012 - opg.optica.org
A customized IQ modulator driven by equal-amplitude binary signals for generating offset-
free 16-quadrature amplitude modulation (QAM) is proposed and validated through …