Open AccessPlanar n-SI-n heterostructure athermal InP (110) optical modulator
Author(s) -
Yoshihiro Ogiso,
Yoichiro Nakanishi,
Shigeru Kanazawa,
E. Yamada,
Hiromasa Tanobe,
M. Arai,
Y. Shibata,
Masaki Kobayashi
Publication year - 2014
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.22.025776
Subject(s) - extinction ratio , optics , electro optic modulator , optical modulator , modulation (music) , materials science , planar , optoelectronics , heterojunction , biasing , chirp , phase modulation , physics , wavelength , voltage , laser , computer graphics (images) , quantum mechanics , computer science , phase noise , acoustics
We report an athermal InP (110) optical modulator with a simple planar n-SI-n heterostructure. A symmetrical push-pull operation provides a high-extinction ratio of >25 dB over the entire C-band and zero-chirp modulation. A Mach-Zehnder optical modulator (MZM) exhibits a 3 dB-EO bandwidth of 30 GHz and 40-Gb/s NRZ high-speed modulation with wavelength and temperature insensitive operation. We also successfully demonstrate an MZM integrated twin-IQ modulator that exhibits 56-Gb/s × 2 athermal QPSK modulation at constant drive and bias voltages.