An integrated uni-traveling-carrier photodetector with 3dB bandwidth of over 100GHz

Yuxuan Wang; Guanyu Li; Xiaowen Gu; Yuechan Kong; Guang Qian

doi:10.1117/12.3022247

18 March 2024 An integrated uni-traveling-carrier photodetector with 3dB bandwidth of over 100GHz

Yuxuan Wang, Guanyu Li, Xiaowen Gu, Yuechan Kong, Guang Qian

Proceedings Volume 13104, Advanced Fiber Laser Conference (AFL2023); 131041G (2024) https://doi.org/10.1117/12.3022247
Event: Advanced Fiber Laser Conference (AFL2023), 2023, Shenzhen, China

Abstract

The responsivity and the bandwidth are both key parameters of a PD but also encounter tradeoff during the device designing due to the thickness of InGaAs layer absorbing light. In this paper, a balanced structure to achieve both high speed and relatively high responsivity is reported. A uni-traveling carrier PD(UTC-PD) structure is taking advantage of the high drift velocity to meet the rather high-speed exhibition. For responsivity enhancing, we apply back reflector beneath the top-illuminated UTC-PD based on micro transfer printing. To further increase the bandwidth of small size PD, we optimize the shape of CPW electrodes of PDs. With our final structure, the UTC-PD exhibits 3dB bandwidth of 100GHz and responsivity of 0.4A/W.

(2024) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Yuxuan Wang, Guanyu Li, Xiaowen Gu, Yuechan Kong, and Guang Qian "An integrated uni-traveling-carrier photodetector with 3dB bandwidth of over 100GHz", Proc. SPIE 13104, Advanced Fiber Laser Conference (AFL2023), 131041G (18 March 2024); https://doi.org/10.1117/12.3022247

ACCESS THE FULL ARTICLE

INSTITUTIONAL
Select your institution to access the SPIE Digital Library.

SELECT YOUR INSTITUTION

PERSONAL
Sign in with your SPIE account to access your personal subscriptions or to use specific features such as save to my library, sign up for alerts, save searches, etc.

PERSONAL SIGN IN

No SPIE Account? Create one

PURCHASE THIS CONTENT

SUBSCRIBE TO DIGITAL LIBRARY

50 downloads per 1-year subscription

Members: $195

Non-members: $335 ADD TO CART

25 downloads per 1 - year subscription

Members: $145

Non-members: $250 ADD TO CART

PURCHASE SINGLE ARTICLE

Includes PDF, HTML & Video, when available