Optical Transmitters without Driver Amplifiers—Optimal Operation Conditions

Josten, Arne; Baeuerle, Benedikt; Bonjour, Romain; Heni, Wolfgang; Leuthold, Juerg

doi:10.3390/app8091652

Cited by 4 publications

(2 citation statements)

References 56 publications

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“…The optical receiver detected the in-phase and quadrature part of the waveform and sampled the signal with 160 GSa s −1 . For the 100 GBd measurements, we applied a static digital post-distortion filter at the beginning of the DSP 73 . The following steps were timing synchronization, carrier recovery and linear and non-linear equalization.…”

Section: Methodsmentioning

confidence: 99%

Plasmonic IQ modulators with attojoule per bit electrical energy consumption

et al. 2019

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Coherent optical communications provides the largest data transmission capacity with the highest spectral efficiency and therefore has a remarkable potential to satisfy today’s ever-growing bandwidth demands. It relies on so-called in-phase/quadrature (IQ) electro-optic modulators that encode information on both the amplitude and the phase of light. Ideally, such IQ modulators should offer energy-efficient operation and a most compact footprint, which would allow high-density integration and high spatial parallelism. Here, we present compact IQ modulators with an active section occupying a footprint of 4 × 25 µm × 3 µm, fabricated on the silicon platform and operated with sub-1-V driving electronics. The devices exhibit low electrical energy consumptions of only 0.07 fJ bit −1 at 50 Gbit s −1 , 0.3 fJ bit −1 at 200 Gbit s −1 , and 2 fJ bit −1 at 400 Gbit s −1 . Such IQ modulators may pave the way for application of IQ modulators in long-haul and short-haul communications alike.

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Section: Methodsmentioning

confidence: 99%

Plasmonic IQ modulators with attojoule per bit electrical energy consumption

et al. 2019

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“…• Optical Transmitters without Driver Amplifiers-Optimal Operation Conditions [7] The authors discuss the influence of waveform design on the root-mean-square amplitude and the optical signal quality generated by a Mach-Zehnder modulator with a limited electrical swing (Vpp). Specifically, the influence of the pulse shape, clipping, and digital pre-distortion on the signal quality after the electrical-to-optical conversion are investigated.…”

Section: Special Issue Papersmentioning

confidence: 99%