Posts about Silicon Photonics

Integrating a laser onto a silicon electro-photonic integrated chip is the current holy grail in the optical transceiver space. When realized, these advanced semiconductors will help the DCI networking industry tackle critical issues around cost-efficiency, power consumption, and thermal management for optical transceivers. But the addition of a laser to silicon chips that already feature monolithic integration of electronics and photonics presents several challenges. That’s why a multi-disciplinary team of engineers from across the supply chain are combining skills and resources under the banner of the Photonic Embedding of Active Region Laser Chips in Silicon (PEARLS) project ...

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With more than 14,500 attendees, last week’s OFC is the biggest event on optical communications worldwide. The massive capacity needs of internet content providers (ICPs) stirred hot debates at the conference and on the show floor. In his plenary talk, Urs Hölzle highlighted that Google’s data center bandwidth is roughly doubling every year, posing serious scaling challenges to the network infrastructure ...
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There’s been a lot of buzz around 4-Level Pulse Amplitude Modulation (PAM-4) in optical interconnect circles lately, and not without good reason. With the enterprise and metro carriers moving steadily toward 100Gbit/s connectivity, and already setting their sights on 400Gbit/s and beyond, the need to improve the ability of both the transmitter and receiver to handle large amounts of data is growing ...

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