1:15 PM - 1:30 PM
[15p-A502-2] [The 7th Photonics Encouragement Award Speech] High-resolution beam steering using non-redundant optical phased array
Keywords:Optical phased array, Silicon Photonics
Optical phased array (OPA) is a device that realizes beam steering by emitting phase-controlled light from numerous optical antennas and is attracting much attention due to its unique advantages.
On the other hand, the number of resolvable points of a conventional OPA is nearly equal to the number of antennas N, and it was difficult to realize a large number of resolvable points. In this work, we propose a novel OPA configuration called non-redundant OPA (NROPA), where the antennas are located based on the non-redundant array concept. The number of resolvable points of an NROPA scales with N2. We demonstrated the concept using a silicon photonic OPA.
On the other hand, the number of resolvable points of a conventional OPA is nearly equal to the number of antennas N, and it was difficult to realize a large number of resolvable points. In this work, we propose a novel OPA configuration called non-redundant OPA (NROPA), where the antennas are located based on the non-redundant array concept. The number of resolvable points of an NROPA scales with N2. We demonstrated the concept using a silicon photonic OPA.