This letter presents the design and measurements of a monolithically integrated photonic receiver manufactured in 0.25 $\mu \text{m}$ SiGe BiCMOS electro-photonic technology. The receiver consists of an on-chip germanium photodiode directly connected to the transimpedance amplifier (TIA). An on-chip, low-noise feedback loop compensates the dc photocurrent. The circuit provides a maximum bandwidth of 35.6 GHz at a gain of 59.2 dB $\Omega $ with a noise of 12.34 pA/ $\sqrt {\text {Hz}}$ while consuming only 80 mW. In combination with a 20 GHz, 1550 nm electro-optical transmitter, a maximum data rate of 50 Gb/s at a bit error rate of less than $10^{-{12}}$ was measured. To the best of the authors’ knowledge, this is the fastest error-free detected data rate reported for a monolithically integrated photonic receiver. Additionally, the feedback resistor of the TIA can be tuned via a MOSFET allowing error-free operation at 20 Gb/s with a sensitivity of only −13 dBm. In this setting the input-referred noise is only 8.16 pA/ $\sqrt {\text {Hz}}$ .

中文翻译：

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具有 59-70 dBΩ 增益和 12.3-8.2 pA/√Hz 输入参考噪声的 50-20 Gb/s、80 mW 光子接收器

这封信介绍了以 0.25 英寸制造的单片集成光子接收器的设计和测量 $\mu \text{m}$ SiGe BiCMOS 电光子技术。接收器由一个直接连接到跨阻放大器 (TIA) 的片上锗光电二极管组成。片上低噪声反馈环路补偿直流光电流。该电路以 59.2 dB 的增益提供 35.6 GHz 的最大带宽 $\欧米茄 $ 噪声为 12.34 pA/ $\sqrt {\text {Hz}}$ 而仅消耗 80 mW。结合 20 GHz、1550 nm 光电发射器，最大数据速率为 50 Gb/s，误码率小于 $10^{-{12}}$ 被测量。据作者所知，这是针对单片集成光子接收器报告的最快无差错检测数据速率。此外，TIA 的反馈电阻器可以通过 MOSFET 进行调谐，允许以 20 Gb/s 的速度无差错运行，灵敏度仅为 -13 dBm。在此设置中，输入参考噪声仅为 8.16 pA/ $\sqrt {\text {Hz}}$ .