A $4\times25$ Gb/s Optical Transmitter Using Low-Cost 10 Gb/s VCSELs in 40-nm CMOS

Shang Hu,Rui Bai,Xin Wang,Yi Peng,Juncheng Wang,Tao Xia,Jianxu Ma,Lei Wang,Yuanxi Zhang,Xuefeng Chen,Nan Qi, Patrick Yin Chiang

IEEE Photonics Technology Letters（2019）

引用 5|浏览45

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摘要

This letter presents a 4×25 Gb/s optical transmitter in 40-nm CMOS. Low-cost vertical cavity surface-emitting lasers (VCSELs) with 10-GHz bandwidth (BW) are employed, which are then overdriven to 25 Gb/s by the proposed pre-emphasized quad-channel driver. Digitally assisted asymmetric-pulsed equalization technique is proposed to overcome the VCSEL modulation non-linearity and maximize the eye-diag...

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关键词

Vertical cavity surface emitting lasers,Optical transmitters,Optical modulation,Bandwidth,Optical variables measurement,Temperature measurement

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