Two-Dimensional High-Efficiency Transceiver Integrated Optical Phased Array With Dual-Port Antenna

Abstract

We propose a 1 × 32 silicon photonics transceiver integrated optical phased array (OPA) with a large scanning angle. It can process receive and transmit signals simultaneously, which effectively increases the on-chip signal transmission efficiency. The simulation shows that the phase-tuned 62.2°lateral beam steering without grating lobe and the wavelength-tuned 31.2°longitudinal beam steering can be achieved in the transmitting mode, and the overall optical loss is less than 9.1 dB. In the receiving mode, the combination of the two detection methods reduces the complexity of the system while ensuring the sensitivity of the system. According to statistics, an effective collection area of 43.3% per unit area can be achieved in the receiving mode, which provides a reliable guarantee for subsequent high-quality signal processing.

Photonic Integrated Circuits for an Optical Phased Array

“…OPAs can also function as receivers by detecting the emitting angle of an incoming beam [128], allowing for the creation of directional reflectors [129] and OPA cameras [130]. By combining the receiving and emitting capabilities of OPAs, optical transceivers can be developed [131][132][133], enabling wireless communication with directional links [77,[134][135][136][137][138] and also underwater wireless communication [139,140]. Additionally, OPAs have potential in bio-applications, where a neural stimulation OPA [141] and a neural probe [142] have been developed.…”

Intensive and Efficient Design of a Two-dimensional 8 × 8 Silicon-Based Optical Phased Array Transceiver

“…However, studies have shown that the use of an OPA for signal reception can receive the incident optical signal directionally through phase control. It means that it can actively receive the optical signal in the specified direction and reject the signal in other directions [22]. This function is of great value in many applications.…”