226.875 gbit /s高输出功率AXEL芯片在载波（CoC）上的4-PAM操作

IF 2.3 3区工程技术 Q2 ENGINEERING, ELECTRICAL & ELECTRONIC

IEEE Photonics Technology Letters Pub Date : 2025-03-18 DOI:10.1109/LPT.2025.3552120

S. Kanazawa;N. Watanabe;M. Chen;T. Shindo;W. Kobayashi;Y. Nakanishi;M. Usui;K. Hadama;H. Nakamura

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引用次数: 0

摘要

在这项工作中，我们提出了一种线互连AXEL CoC，旨在增加200 gbit /s/ $\lambda $运算的调制带宽，并简化CoC的制造过程。我们首先开发了一种能保持消光比和调制带宽平衡的电吸收调制器（EAM），然后，为了增加调制带宽，我们设计了一种可以与EAM和CoC集成的终端电路，以减少键合线的长度。我们分别在最长和最短的键合线长度下获得了超过80 GHz和超过98 GHz的模拟3db带宽。AXEL CoC的3db带宽超过95 GHz，足以满足226 gbit /s/ $\lambda $的运算。此外，在226.875 Gbit/s 4-PAM工作下，由于芯片中集成了SOA，平均输出功率超过+9.0 dBm。

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226.875-Gbit/s 4-PAM Operation of High-Output Power AXEL Chip on Carrier (CoC)

In this work, we propose a wire interconnection AXEL CoC designed to increase the modulation bandwidth for 200-Gbit/s/

$\lambda $

operation and simplify the CoC fabrication process. We first developed an electro-absorption modulator (EAM) that maintains a balance between the extinction ratio and the modulation bandwidth, and then, to increase the modulation bandwidth, we designed a termination circuit that can be integrated with the EAM and the CoC to reduce the bonding wire length. We obtained simulated 3-dB bandwidths of over 80 GHz and over 98 GHz with the longest and shortest bonding wire lengths, respectively. The 3-dB bandwidth of the AXEL CoC was over 95 GHz, which is enough for 226-Gbit/s/

$\lambda $

operation. Moreover, under 226.875 Gbit/s 4-PAM operation, the average output power exceeded +9.0 dBm thanks to the integrated SOA in the chip.

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来源期刊

IEEE Photonics Technology Letters 工程技术-工程：电子与电气

CiteScore

5.00

自引率

3.80%

发文量

404

审稿时长

2.0 months

期刊介绍： IEEE Photonics Technology Letters addresses all aspects of the IEEE Photonics Society Constitutional Field of Interest with emphasis on photonic/lightwave components and applications, laser physics and systems and laser/electro-optics technology. Examples of subject areas for the above areas of concentration are integrated optic and optoelectronic devices, high-power laser arrays (e.g. diode, CO2), free electron lasers, solid, state lasers, laser materials'' interactions and femtosecond laser techniques. The letters journal publishes engineering, applied physics and physics oriented papers. Emphasis is on rapid publication of timely manuscripts. A goal is to provide a focal point of quality engineering-oriented papers in the electro-optics field not found in other rapid-publication journals.