Share Email Print

Proceedings Paper • Open Access

Development of an InGaAs SPAD 2D array for flash LIDAR
Author(s): Takashi Baba; Yoshihito Suzuki; Kenji Makino; Takuya Fujita; Tatsuya Hashi; Shunsuke Adachi; Shigeyuki Nakamura; Koei Yamamoto

Paper Abstract

An InGaAs Single-Photon Avalanche Photodiode (SPAD) array and a hybrid photon-counting image sensor have been developed for time-resolved applications in the near infrared region, especially for Flash LIDAR. The implemented array has a 100 μm pitch 32×32 matrix, and the active area in each pixel has a diameter of 12 μm. A dedicated read-out IC incorporates an active quenching and recharge circuit, and an in-pixel time-to-digital converter with 318 ps resolution for providing stable Geiger-mode operation of the InGaAs SPAD pixels and a simultaneous time-resolving function. The uniformity of the electrical field in the entire two-dimensional area is one of the key characteristics as it affects most performance parameters. The breakdown voltage mapping revealed the SPAD array has an excellent uniformity. Full characterizations of dark count rate, photon detection probability, and timing jitter were performed and will be discussed. Methods of suppressing afterpulses were examined by utilizing an adjustable hold-off function. The results showed that the function worked effectively to reduce the afterpulse probability. Finally we prove that the InGaAs SPAD image sensor has the capability of accurate timing detection for constructing a flash LIDAR in the near future.

Paper Details

Date Published: 26 January 2018
PDF: 14 pages
Proc. SPIE 10540, Quantum Sensing and Nano Electronics and Photonics XV, 105400L (26 January 2018);
Show Author Affiliations
Takashi Baba, Hamamatsu Photonics K.K. (Japan)
Yoshihito Suzuki, Hamamatsu Photonics K.K. (Japan)
Kenji Makino, Hamamatsu Photonics K.K. (Japan)
Takuya Fujita, Hamamatsu Photonics K.K. (Japan)
Tatsuya Hashi, Hamamatsu Photonics K.K. (Japan)
Shunsuke Adachi, Hamamatsu Photonics K.K. (Japan)
Shigeyuki Nakamura, Hamamatsu Photonics K.K. (Japan)
Koei Yamamoto, Hamamatsu Photonics K.K. (Japan)

Published in SPIE Proceedings Vol. 10540:
Quantum Sensing and Nano Electronics and Photonics XV
Manijeh Razeghi; Gail J. Brown; Jay S. Lewis; Giuseppe Leo, Editor(s)

© SPIE. Terms of Use
Back to Top
Sign in to read the full article
Create a free SPIE account to get access to
premium articles and original research
Forgot your username?