Quadratic-Gradient Metasurface-Dome for Wide-Angle Beam-Steering Phased Array With Reduced Gain Loss at Broadside

Integrated phased array for wide-angle beam steering.

We demonstrate an on-chip optical phased array fabricated in a CMOS compatible process with continuous, fast (100 kHz), wide-angle (51°) beam-steering suitable for applications such as low-cost LIDAR systems. The device demonstrates the largest (51°) beam-steering and beam-spacing to date while providing the ability to steer continuously over the entire range. Continuous steering is enabled by ...

Optical phased-array beam steering controlled by wavelength.

A scheme for optical phased-array beam steering controlled by wavelength is proposed. In this scheme, the optical scanning device consists of arrayed optical waveguides with specific length differences, by which the desired phase slope that results in optical beam steering is formed at the ends of the waveguides and can be changed by varying the optical wavelength. By introducing the concept of...

Optical Dispersion Techniques Application in Phased Array Antenna Beam Steering

The paper presents an optoelectronic system for antenna beam control. Dispersion technique has been applied to build variable delay lines for wide bandwidth microwave signals. Optoelectronic beam scanning system configuration and measurements results have been presented. Key-Words: antenna, fibre optic, beam forming, optoelectronics, laser.

Agile wide-angle beam steering with electrowetting microprisms.

A novel basis for beam steering with electrowetting microprisms (EMPs) is reported. EMPs utilize electrowetting modulation of liquid contact angle in order to mimic the refractive behavior for various classical prism geometries. Continuous beam steering through an angle of 14 degrees (+/-7 degrees ) has been demonstrated with a liquid index of n=1.359. Experimental results are well-matched to t...

Wide Angle Decentered Lens Beam Steering for Infrared Countermeasures Applications