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Multilevel modulations are becoming attractive, not only for metro-core optical communications, but also for the access sector. Designing cost-effective, easy-to-integrate multilevel modulators is mandatory to support high-bandwidth access interconnections, which may also require colorless operation. In this work, we propose a novel colorless multilevel transmitter architecture, based on reflective...
Photonic integrated circuits (PICs) based on InP have provided an effective solution to realize advanced functions at a system level with compact size. Such PICs have been demonstrated using various techniques such as epitaxial regrowth, hybrid/heterogeneous integration of InP and Silicon, and band gap engineering methods such as quantum well intermixing and selective area regrowth. However, a disadvantage...
We report on the transmission of 108 Gbit/s, 99 Gbit/s, and 90 Gbit/s PAM-8 signal over 25 m, 75 m, and 125 m OM3 multi-mode fiber (MMF), respectively. These bit rates are achieved with an 850 nm GaAs multi-mode (MM) vertical cavity surface emitting laser (VCSEL) transmitter and a GaAs PIN photodiode (PD).
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