256-Gbit/s PAM-4 Directly Modulated Membrane Lasers on SiC Substrate

Suguru Yamaoka,Nikolaos-Panteleimon Diamantopoulos,Hidetaka Nishi,Takuro Fujii,Koji Takeda,Tatsurou Hiraki,Takuma Tsurugaya,Shigeru Kanazawa,Hiromasa Tanobe,Takaaki Kakitsuka,Tai Tsuchizawa,Fumio Koyama,Shinji Matsuo

2022 Conference on Lasers and Electro-Optics Pacific Rim (CLEO-PR)（2022）

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摘要

A membrane laser on high-thermal-conductivity SiC exhibits a 42-GHz relaxation oscillation frequency because of the large optical confinement and heat dissipation. Photonphoton resonance increases the bandwidth to 108 GHz capable of 256-Gbit/s PAM-4 signal transmission.

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关键词

SiC Substrate,Optical Confinement,Relaxation Oscillator,Active Region,Energy Cost,Waveguide,High Thermal Conductivity,Low Power Consumption,SiO2 Layer,Bias Current,Distributed Bragg Reflector,Distributed Feedback

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