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The development of advanced InP-based transmitter PICs of increasing complexity and integrating periodically capacitive-loaded (CL) Travelling Wave Electrode (TWE) Mach-Zehnder modulators is reported and discussed in examples.
The development of InP-based 4- and 8-channel IQ Mach-Zehnder modulator PICs as basic active building blocks in advanced hybrid terabit super-channel OFDM/Nyquist WDM transmitter components is reported for the first time.
We numerically evaluate the performance of optical vectorial linear modulators, which consist of asymmetric power splitter, phase shifters and phase modulators (PM); 2N-level quadrature amplitude modulated (QAM) signals are generated by using only N single-drive two-level (binary) RF signals. We also demonstrate that a proper architecture design, with phase and amplitude modulators, largely increases...
This paper reports on the design and fabrication technologies of compact hybrid integrated 8-channel transmitters and coherent receivers, which are currently developed in the European research project ASTRON for future flexible orthogonal frequency division multiplexing (OFDM) and Nyquist-wavelength division multiplexing (N-WDM) networks.
A small footprint, low power 105Gb/s PAM-8 TOSA with InP-based/Mach-Zehnder modulator and a customized SiGe differential driver with a modulation power of 3.23pJ/bit is demonstrated. Predistortion is applied to compensate for non-linearities of both devices.
A differential impedance-engineered 32 Gbit/s SiGe driver co-designed with an InP-based MZ-Modulator is demonstrated, showing record low 185 mW power consumption. The small footprint and low power is targeting towards CFP4-sized coherent transceivers. Results on IQ-Modulators will be presented.
High speed InP-based travelling wave electrode (TWE) Mach-Zehnder modulators are presented and their integration capabilities to fabricate next generations of compact and high capacity transmitter components by utilizing so-called “monolithic-on-hybrid” integration approaches are emphasized.
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