1 GHz Low-noise InAlAsSb digital alloy avalanche photodiode receiver at short-wave infrared wavelengths

Ping Yuan

doi:10.1117/12.2619039

27 May 2022 1 GHz Low-noise InAlAsSb digital alloy avalanche photodiode receiver at short-wave infrared wavelengths

Ping Yuan

Proceedings Volume 12107, Infrared Technology and Applications XLVIII; 121070H (2022) https://doi.org/10.1117/12.2619039
Event: SPIE Defense + Commercial Sensing, 2022, Orlando, Florida, United States

Abstract

Recently a group from University of Virginia, demonstrated InAlAsSb digital alloy APDs operating in the 1-2 μm wavelengths with a very low excess noise, equivalent to silicon APDs. With a digital-alloy In0.3Al0.7AsSb multiplier, the excess noise is similar to that of Si APDs and the impact ionization parameter k is about 0.02 at gains >10. Using this digital alloy detector technology, our modeling calculations show that a noise equivalent power (NEP) comparable to HgCdTe APD receivers can be achieved at TE-cooled temperatures. Acqubit has designed and developed a 1 GHz receiver operating at -30°C using the InAlAsSb digital alloy APD designed for 2 μm wavelength operation. We measured an NEP of 600 fW/√Hz at 1.5 μm wavelength. In this presentation, we will present the receiver design and characterization results and modeling data to show the potential to achieve high sensitivity comparable to HgCdTe and Si receivers.

Conference Presentation

Citation Download Citation

Ping Yuan "1 GHz Low-noise InAlAsSb digital alloy avalanche photodiode receiver at short-wave infrared wavelengths", Proc. SPIE 12107, Infrared Technology and Applications XLVIII, 121070H (27 May 2022); https://doi.org/10.1117/12.2619039

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