Authors: Iria García López Pedro Rito Daniel Micusik Alessandro Aimone Tino Brast Marko Gruner Gerrit Fiol Andreas Gerhard Steffan Johannes Borngräber Lars Zimmermann Dietmar Kissinger A Cagri Ulusoy
Publish Date: 2015/12/14
Volume: 87, Issue: 2, Pages: 105-115
Abstract
A hybrid arrangement for an optical transmitter subsystem comprising a linear driver fabricated in IHP SiGe 013 µm BiCMOS technology with an InP segmented MachZehnder modulator is described The proposed scheme with direct interface to the digital to analog converter is suitable for coherent high order modulation formats intended for data transmission over optical fiber at a wavelength of 1550 nm In this paper a partial prototype consisting of a single driver core and modulator segment is demonstrated The driver core features an output differential voltage of 25 Vpp a gain of 9 dB and a 3 dB bandwidth of 32 GHz Linearity is evaluated through total harmonic distortion measurements With on–offkeying modulation electrooptical eye diagram measurements of the single segment demonstrate successful operation up to 40 Gb/s data rate While exhibiting clear capability for high speed operation these results serve also to explore the boundaries of the proposed hybrid configurationThis work has been partially funded by German Bundesministerium für Bildung und Forschung BMBF under the Celtic Project SASER 16BP12503 The authors would like to acknowledge the technology department of IHPMicroelectronics for the fabrication of the chip
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