Lg Electronics Inc.

Korea Advanced Institute of Science and Technology

HyoHoon Park

Joonsup Shim

Sangcheon Kim

Youngin Kim

Hyun-Woo Rhee

Hyeonho Yoon

Byounggoo Lee

Seonghwan Kim

An optical device can include an end-fire optical phased array including an optical splitter to split an optical signal into a plurality of channels, an optical phase controller to control a phase of the optical signal transmitted from the optical splitter, and an end-fire optical radiator to radiate the optical signal transmitted from the optical phase controller. A lens can be further positioned on a path of the radiated optical signal to control a vertical divergence angle of the radiated optical signal.

Optical device

A device system for constituting a 3D image sensor based on optical phased array is provided. The device system includes an optical modulator that is integrated on the same photonic integrated circuit (PIC) chip as a laser diode array with different output wavelengths and a multiplexer for transmitting an optical wave having a wavelength selected from the laser diode array to an optical waveguide and modulates the optical wave into a specific optical signal, an optical phased array that radiates the optical signal received via an optical switch to the free space using a tunable transmit and receive (TRx) antenna array, and a photodetector that converts an Rx optical signal received by a Tx optical signal transmitted via the optical phased array into an electrical signal.

Device system for constituting 3D image sensor capable of wireless data transmission and reception based on optical phased array

Growing community of inventors

Daejeon, South Korea

HyoHoon Park