[22p-E303-1~13] 3.15 Silicon photonics and integrated photonics

[22p-E303-1] [The 51st Young Scientist Presentation Award Speech] High-resolution beam steering with non-redundant optical phased array

〇Taichiro Fukui¹, Ryota Tanomura¹, Kento Komatsu¹, Daiji Yamashita¹, Shun Takahashi¹, Yoshiaki Nakano¹, Takuo Tanemura¹ (1.The Univ. of Tokyo)

Keywords:Optical phased array, Integrated photonics, Silicon photonics

Optical phased array (OPA) is a non-mechanical beam steering device and is under intensive study due to its unique advantages of fast scanning speed, high reliability, high energy efficiency, compactness, and so on. On the other hand, previously, it was difficult to realize practical spatial resolution. In this work, we show that by locating the N antennas based on non-redundant array, we can realize a large number of resolvable points scaling with N². We demonstrate the concept by a silicon OPA chip.