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High-Speed, Low-Driving-Voltage Dual-Drive InP-Based Mach-Zehnder Modulator

Nobuhiro KIKUCHI, Ken TSUZUKI, Takeshi KUROSAKI, Yasuo SHIBATA, Hiroshi YASAKA

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Summary :

We present a dual traveling-wave electrode InP-based Mach-Zehnder (MZ) modulator with an n-i-n waveguide structure. An electrical input/output interface placed on one side of the chip helps us to drive the modulator in a push-pull configuration. This configuration provides the modulator with great advantages such as reduced driving voltage amplitude, chirp-free operation, and the ability to support advanced modulation formats. The fabricated modulator exhibits good performance. A 40 Gb/s non-return-to-zero (NRZ) signal is successfully generated with a low driving of 1.3 Vpp. In addition, a 10-Gb/s optical duobinary (DB) signal is successfully generated and transmitted over a 240-km single-mode fiber (SMF). We also developed a wavelength tunable transmitter hybrid integrated with a modulator with a wavelength tunable laser. Full C-band 10-Gb/s operation and a 100-km SMF transmission with a low power penalty are confirmed.

Publication
IEICE TRANSACTIONS on Electronics Vol.E92-C No.2 pp.205-211
Publication Date
2009/02/01
Publicized
Online ISSN
1745-1353
DOI
10.1587/transele.E92.C.205
Type of Manuscript
Special Section INVITED PAPER (Special Section on Recent Advances in Integrated Photonic Devices)
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