Concepedia

16-level quadrature amplitude modulation by monolithic quad-parallel Mach-Zehnder optical modulator

Akito Chiba, Takahide Sakamoto, Tetsuya Kawanishi, Kaoru Higuma, Masaaki Sudo, Jiro Ichikawa

Electronics Letters · 2010 · 31 citations · 2 references

Concepts

EngineeringElectrical EngineeringOpticsOptoelectronicsPhotonicsIntegrated OpticsIntegrated PhotonicsModulationOptical ModulationOptical ModulatorsPhotonic Integrated CircuitsAmplitude ModulationElectro-optic ModulatorsHigh-speed Optical ModulationIntegrated Optical ModulatorsMach-zehnder ModulatorsModulation BandwidthQuadrature Amplitude ModulationQuadrature Modulators

Abstract

A monolithically-integrated quad-parallel Mach-Zehnder optical modulator has been fabricated. 3 and 6 dB electro-optical bandwidths of Mach-Zehnder structures embedded in the modulator were evaluated as 22 and 36 GHz, respectively. By using the monolithic optical modulator, a 10 Gbaud 16-level quadrature amplitude modulation (QAM) signal was successfully obtained.

References

2

Fully packaged, broad-band LiNbO<sub>3</sub> modulator with low drive voltage

M.M. Howerton, R. P. Moeller, A. S. Greenblatt et al. · IEEE Photonics Technology Letters · 2000 · 98 citations

Engineering, Electrical Engineering, Materials Science +16

Polarization-Insensitive Operation of Lithium Niobate Mach–Zehnder Interferometer With Silica PLC-Based Polarization Diversity Circuit

Kenya Suzuki, Takashi Yamada, Osamu Moriwaki et al. · IEEE Photonics Technology Letters · 2008 · 33 citations

Engineering, Electrical Engineering, Materials Science +17