Design and Fabrication of Mixed Electronics-Optics Modulator for Dual-Carrier QPSK Generation

We discuss in detail the design and fabrication of a mixed electronics-optics (MEO) modulator and related key devices. Our proposed MEO modulator generates dual-carrier quadrature phase-shift keying (QPSK) signals utilizing both analog electrical and optical modulation with a simple optical circuit...

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Bibliographic Details
Published in:Journal of lightwave technology 2015-08, Vol.33 (15), p.3265-3270
Main Authors: Kikuchi, Kiyofumi, Nosaka, Hideyuki, Yamazaki, Hiroshi, Nagatani, Munehiko, Goh, Takashi, Kurishima, Kenji, Saida, Takashi
Format: Article
Language:English
Subjects:
Analog integrated circuits
heterojunction bipolar transistors
High-speed optical techniques
indium phosphide
Integrated optics
integrated optoelectronics
multicarrier transmission
Optical attenuators
Optical device fabrication
Optical modulation
optical planar waveguides
Phase modulation
phase shift keying (PSK)
superchannel
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Description
Summary:We discuss in detail the design and fabrication of a mixed electronics-optics (MEO) modulator and related key devices. Our proposed MEO modulator generates dual-carrier quadrature phase-shift keying (QPSK) signals utilizing both analog electrical and optical modulation with a simple optical circuit configuration. The key devices for the MEO modulator include a high-speed electrical-phase modulator and a complex optical modulator. We report the design and fabrication of a high-speed phase modulator IC with 0.5-μm InP HBT technology, and a silica-LiNbO 3 integrated optical amplitude and phase modulator. We performed proof-of-concept experiments for the MEO modulator, and confirmed the generation of 26-GHz spacing 14-GBaud dual-carrier QPSK signals.
ISSN:0733-8724
1558-2213
DOI:10.1109/JLT.2015.2435056