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High Power CW Laser for Co-Packaged Optics

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High Power CW Laser for Co-Packaged Optics

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  • Author: Wenjia Zhou, Yan Zhu, Jeff Wang, Michael Moewe, Ruichao Zhu, Wei Zhao, Victor Rossin, Hongyu Liu, Jinsong Wang, Ting Zhu, Prasad Yalamanchili, Thang Pham, Ruby Chen, Vincent Zeng, James Stewart
The global data center traffic has tripled in the past five years, with a significant portion residing within data centers due to factors like video, AI, and HPC. However, the power consumption of next-generation switches, such as the 51T and 102T switches, may exceed cooling facility limits if traditional construction techniques are employed. To address this, the use of CPO-based switch designs with ELSs offers advantages such as serviceability, separation of temperature-sensitive lasers, and space optimization. For 51T switches, each laser should provide around 22 to 25dBm of optical power, along with a target power conversion efficiency (PCE) of 10% to achieve the desired power reduction in CPO systems.

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