3D indirect time-of-flight imaging employing transmission electroabsorption modulators

Markus Miller; Bedouin Sassiya; Susanne Menzel; Karl Joachim Ebeling; Rainer Michalzik

doi:10.1117/12.2620458

20 May 2022 3D indirect time-of-flight imaging employing transmission electroabsorption modulators

Markus Miller, Bedouin Sassiya, Susanne Menzel, Karl Joachim Ebeling, Rainer Michalzik

Proceedings Volume 12136, Unconventional Optical Imaging III; 121360Y (2022) https://doi.org/10.1117/12.2620458
Event: SPIE Photonics Europe, 2022, Strasbourg, France

Conference Poster

Abstract

Electronically demodulating indirect time-of-flight (iTOF) image sensors can be replaced by a combination of a transmission electroabsorption modulator (T-EAM) and a common image sensor. In this case the demodulation is done by the modulator in the optical domain. In this work a three-dimensional (3D) imaging system utilizing this combination is built and its performance using two identical modulators with different size is compared. Measurement results show the strong influence of the modulation bandwidths of the T-EAM, leading to depth inaccuracies of 1 and 4 cm at a distance of 1 m for modulators with bandwidths of 75 and 23 MHz, respectively. In addition, simulation results matching the measured values are presented.

Citation Download Citation

Markus Miller, Bedouin Sassiya, Susanne Menzel, Karl Joachim Ebeling, and Rainer Michalzik "3D indirect time-of-flight imaging employing transmission electroabsorption modulators", Proc. SPIE 12136, Unconventional Optical Imaging III, 121360Y (20 May 2022); https://doi.org/10.1117/12.2620458

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