Paper Abstract and Keywords |
Presentation |
2014-10-31 10:45
Studies of an athermal IQ optical modulator and the integratability on (110) InP substrate Yoshihiro Ogiso, Yasuhiko Nakanishi, Shigeru Kanazawa, Eiichi Yamada, Hiromasa Tanobe, Yasuo Shibata, Masaki Kohtoku (NTT) OCS2014-72 OPE2014-116 LQE2014-90 Link to ES Tech. Rep. Archives: OPE2014-116 LQE2014-90 |
Abstract |
(in Japanese) |
(See Japanese page) |
(in English) |
An InP-based athermal in-phase and quadrature optical modulator (IQM) was demonstrated for the first time. A single-RF drive push-pull MZM with a simple coplanar waveguide (CPW) was fabricated by utilizing a (110)-oriented InP substrate in terms of the crystallographic orientation dependence of the electro-optic Pockels effect. The device exhibits a 3 dB-EO bandwidth of over 25 GHz, and 56-Gb/s × 2 QPSK modulation. The variation in Q-factor over the entire range (20- 80 oC) is less than 1.0 dB. Furthermore, a polarization converter with a trapezoidal core and a polarization beam splitter/combiner, which are suitable for device integration, were also successfully demonstrated. The converter exhibited a polarization conversion ratio of over 98% (C-L band) and a polarization extinction ratio of 10 dB (C band) in the polarization splitter. |
Keyword |
(in Japanese) |
(See Japanese page) |
(in English) |
Optical modulator / InP / (110) substrate / / / / / |
Reference Info. |
IEICE Tech. Rep., vol. 114, no. 281, OCS2014-72, pp. 159-162, Oct. 2014. |
Paper # |
OCS2014-72 |
Date of Issue |
2014-10-23 (OCS, OPE, LQE) |
ISSN |
Print edition: ISSN 0913-5685 Online edition: ISSN 2432-6380 |
Copyright and reproduction |
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OCS2014-72 OPE2014-116 LQE2014-90 Link to ES Tech. Rep. Archives: OPE2014-116 LQE2014-90 |
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