Bandwidth enhancement of InP/InGaAs waveguide uni-traveling carrier photodetectors for over 100 GHz bandwidth using impedance lines

IF 4.6 2区物理与天体物理 Q1 OPTICS

Optics and Laser Technology Pub Date : 2024-10-10 DOI:10.1016/j.optlastec.2024.111942

Han Ye , Qin Han , Shuai Wang , Liyan Geng , Yimiao Chu , Yu Zheng

引用次数: 0

Abstract

Uni-traveling carrier photodetectors are highly competitive for the next generation over 200Gbaud/λ ultra-fast data fiber-optic communication systems. An impedance line is integrated to the photodetector for a 100 % bandwidth enhancement within a wide range of device areas. A modified equivalent circuit model is proposed to explain the resistance matching and inductive peaking effect of the impedance line. The fabricated chip exhibits a high bandwidth of 140 GHz with an ultra-low dark current of 0.078nA for the 50 μm² photodetector, and an external responsivity of 0.262A/W.

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利用阻抗线增强 InP/InGaAs 波导单游程载流子光电探测器的带宽，使其带宽超过 100 GHz

单程载波光电探测器在下一代超过 200Gbaud/λ 的超高速数据光纤通信系统中极具竞争力。光电探测器集成了阻抗线，可在大范围器件区域内提高 100% 的带宽。为解释阻抗线的电阻匹配和电感峰值效应，提出了一个改进的等效电路模型。制造出的芯片具有 140 GHz 的高带宽，50 μm2 光电探测器的超低暗电流为 0.078nA，外部响应率为 0.262A/W。

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

Optics and Laser Technology 物理-光学

CiteScore

8.50

自引率

10.00%

发文量

1060

审稿时长

3.4 months

期刊介绍： Optics & Laser Technology aims to provide a vehicle for the publication of a broad range of high quality research and review papers in those fields of scientific and engineering research appertaining to the development and application of the technology of optics and lasers. Papers describing original work in these areas are submitted to rigorous refereeing prior to acceptance for publication. The scope of Optics & Laser Technology encompasses, but is not restricted to, the following areas: •development in all types of lasers •developments in optoelectronic devices and photonics •developments in new photonics and optical concepts •developments in conventional optics, optical instruments and components •techniques of optical metrology, including interferometry and optical fibre sensors •LIDAR and other non-contact optical measurement techniques, including optical methods in heat and fluid flow •applications of lasers to materials processing, optical NDT display (including holography) and optical communication •research and development in the field of laser safety including studies of hazards resulting from the applications of lasers (laser safety, hazards of laser fume) •developments in optical computing and optical information processing •developments in new optical materials •developments in new optical characterization methods and techniques •developments in quantum optics •developments in light assisted micro and nanofabrication methods and techniques •developments in nanophotonics and biophotonics •developments in imaging processing and systems