Ultrasensitive Reset-Less Integrator-Based PIN-Diode Receiver With Input Current Control

IF 2.2 Q3 COMPUTER SCIENCE, HARDWARE & ARCHITECTURE IEEE Solid-State Circuits Letters Pub Date : 2024-12-19 DOI:10.1109/LSSC.2024.3520338

Christoph Gasser;Christoph Ribisch;Simon Michael Laube;Kerstin Schneider-Hornstein;Horst Zimmermann

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Abstract

This work presents a novel ultrasensitive integrator-based optical frontend that eliminates the need for a reset network to stabilize the operating point. The proposed method introduces a current source at the input node that compensates the average photocurrent. Eliminating the reset phase for the integrator results in better data rate scalability and PVT robustness without the need for correlated double sampling. The full-custom designed PIN-diode receiver was fabricated in 0.35

$\mu $

m CMOS and characterized. Using a Manchester encoded PRBS15 bit stream, the best sample achieved a sensitivity of

$\mathbf {-52.93}$

dBm at a wavelength of 642nm, an effective data rate of 50Mb/s and a bit error ratio of

$\mathbf {2\cdot 10^{-3}}$

. This results in a distance of 20.75 dB to the quantum limit.

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这项研究提出了一种基于积分器的新型超灵敏光学前端，无需使用复位网络来稳定工作点。该方法在输入节点引入了一个电流源，用于补偿平均光电流。消除了积分器的复位阶段，从而实现了更好的数据速率可扩展性和 PVT 稳健性，而无需相关的双重采样。全定制设计的 PIN 二极管接收器采用 0.35 英寸 CMOS 制造，并进行了表征。使用曼彻斯特编码的 PRBS15 比特流，在波长为 642nm 时，最佳采样的灵敏度为 $\mathbf {-52.93}$ dBm，有效数据速率为 50Mb/s，误码率为 $\mathbf {2\cdot 10^{-3}}$ 。这使得量子极限距离为 20.75 dB。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

IEEE Solid-State Circuits Letters Engineering-Electrical and Electronic Engineering

CiteScore

4.30

自引率

3.70%

发文量