13 February 2016 100-Gb/s InP DP-IQ modulator for small-form-factor pluggable coherent transceivers
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We developed a compact InP-based DP-IQ modulator for small-form-factor pluggable coherent transceivers. The modulator achieves 112-Gb/s DP-QPSK modulation with a driving voltage of 6 Vppd. In addition, it provides 86-Gb/s DP-16 QAM signal generation and 240-km transmission with negligible degradation of BER performance. The halfwavelength voltage of our recent device is 1.9 V, and a high median extinction ratio of over 32 dB was achieved for more than 1,400 child MZ modulators. We have also proposed an athermal InP-based twin IQ modulator that enables us to use a modulator in a TEC-free operation. It contributes to lowering the power consumption of transceivers. Under a constant driving condition, there is little change in 56-Gb/s x 2 QPSK modulation characteristics in the range of 20 to 80°C.
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Nobuhiro Kikuchi, Nobuhiro Kikuchi, Yoshihiro Ogiso, Yoshihiro Ogiso, Eiichi Yamada, Eiichi Yamada, "100-Gb/s InP DP-IQ modulator for small-form-factor pluggable coherent transceivers", Proc. SPIE 9773, Optical Metro Networks and Short-Haul Systems VIII, 977303 (13 February 2016); doi: 10.1117/12.2218502; https://doi.org/10.1117/12.2218502


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