[11p-N207-1~13] 3.15 Silicon photonics and integrated photonics

△ [11p-N207-13] High-resolution beam steering using non-redundant optical phased array: proposal and demonstration

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

Keywords:Optical phased array, Silicon photonics

Optical phased array is a non-mechanical beam steering device that is receiving strong attention due to its unique advantages such as high reliability. On the other hand, in previous devices, the number of resolvable points is only proportional to the number of ports. Thus, when we try to realize high-resolution imaging, phase control becomes a significant issue. In this work, we propose that by employing the non-redundant array concept, we can achieve a large number of resolvable points that scale with the square of the number of ports. We used an integrated silicon optical phased array to demonstrate the concept.