Abstract
A laser steering system based on the Ti-diffusion lithium niobate (LiNbO3) waveguides is presented. A phase shifter based on the LiNbO3 waveguide is designed. This waveguide can provide a continuous phase shift for laser-phased-array (LPA) by changing the voltage loaded on it. The theory of irregular LPA based on the Ti-diffusion LiNbO3 waveguide phase shifter is studied numerically and experimentally. Beam steering with an angle of 1.37 deg is gained by a 1 × 3 array setup that agrees
Highlights
Laser-phased-array (LPA) technology has attracted many researchers for its potential application in both commercial and military fields for several decades
It is difficult to obtain a good performance practically because the performance of the LPA system is affected by many factors
The lithium niobate (LiNbO3) waveguide is designed to control the phase in the LPA system for its well electro-optic effect, quick response speed, and precise control of phase
Summary
Laser-phased-array (LPA) technology has attracted many researchers for its potential application in both commercial and military fields for several decades. Some LPA systems based on fiber,[3] waveguide,[4] Lanthanum-modified Lead ZirconateTitanate,[5] and liquid crystal[6] were provided theoretically. Some of the problem factors are pump beam quality, phase accuracy, polarization, distance between adjacent coherence beams, and impacts produced by the temperature variation and vibration. It is most necessary for precise and rapid phase controlling to improve the performance. The lithium niobate (LiNbO3) waveguide is designed to control the phase in the LPA system for its well electro-optic effect, quick response speed, and precise control of phase. Simulation for the LPA based on the LiNbO3 waveguides is provided numerically, and an LPA system for 1 × 3 fiber LPA is established experimentally
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