Liquid-Crystal-Based Optical Phased Array for Steering Lasers

Overview

The document titled "Liquid Crystal Based Optical Phased Array for Steering Lasers" is a final report authored by Lei Shi and Philip Bos from Kent State University, published in October 2009. It details research conducted from April 2000 to June 2009, focusing on the development and application of liquid crystal technology in optical phased arrays (OPAs) for laser steering.

The report outlines the significance of OPAs in various applications, including military and civilian sectors, where precise control of laser beams is essential. The use of liquid crystals in these systems offers advantages such as rapid response times, tunability, and the ability to manipulate light without moving parts, which can enhance the performance and reliability of laser systems.

Key sections of the report discuss the theoretical foundations of liquid crystal optics, the design and implementation of the OPA, and experimental results demonstrating the effectiveness of the proposed system. The authors present various configurations and methodologies for integrating liquid crystal devices into phased array systems, highlighting the potential for improved beam steering accuracy and flexibility.

The report also includes figures and diagrams that illustrate the main concepts and experimental setups, such as the main window of the VCOPA v3.0 program and the LC director draw, which are essential for understanding the operational aspects of the liquid crystal-based OPA.

Furthermore, the document emphasizes the collaborative nature of the research, supported by the Air Force Research Laboratory, and discusses the implications of the findings for future advancements in laser technology. The authors conclude that liquid crystal-based OPAs represent a promising avenue for enhancing laser steering capabilities, with potential applications in areas such as target tracking, communication systems, and advanced imaging technologies.

Overall, this report serves as a comprehensive resource for researchers and engineers interested in the intersection of liquid crystal technology and optical phased arrays, providing insights into both the theoretical and practical aspects of the field. It is approved for public release, making it accessible for further study and application in related domains.