Samenvatting
The balanced photodetector (BPD) is an important component for high-speed coherent receiver. An optimization strategy of waveguide-based multi-quantum well (MQW) BPDs, operating at 1550 nm is demonstrated on a generic InP platform. Design parameters of BPD are optimized towards achieving the highest bandwidth for a responsivity through an algorithm based on Particle Swarm Optimization (PSO). We do so by establishing an equivalent circuit model of BPD and analyzing its opto-electronic transfer function through numerical modelling. We address the major bottlenecks of high-speed BPDs: transit time of generated carriers and RC loading in our model. The algorithm is able to provide multiple combinations of design parameters with the same output characteristics. The design methodology to integrate laser with optimized BPD is presented to successfully implement a coherent receiver.
Originele taal-2 | Engels |
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Artikelnummer | 10379816 |
Aantal pagina's | 12 |
Tijdschrift | IEEE Journal of Quantum Electronics |
Volume | 60 |
Nummer van het tijdschrift | 3 |
DOI's | |
Status | Gepubliceerd - 1 jun. 2024 |
Financiering
This work was supported by the H2020 Information and Communication Technologies (ICT) PICaboo Project under the Photonics Public Private Partnership (PPP) under Contract 101017114.