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The True-Time-Delay (TTD) Laser Beam Steering System Design Based on Fourier Cell

Liu, Yifan
http://rave.ohiolink.edu/etdc/view?acc_num=osu1237915468

Abstract Details

2009, Master of Science, Ohio State University, Electrical and Computer Engineering.
In this thesis, an innovative design of a true time delay laser beam steering system based on a multiple-bounce optical system and piston-style microelectromechanical systems (MEMS) micromirror arrays is suggested. Using true-time delay for steering optical beams instead of phase-shifting eliminates dispersion (beam squint) and reduces side lobes significantly. We examine theoretically two approaches, the White cell and the Fourier cell. A simulation program in Matlab is first verified by theoretic analysis and mathematic derivation. First it is used to examine a design based on White cell, and prove that while this design will steer beams as required, it suffers from laser beam quality degradation due to imperfect reproduction of the phase front on multiple bounces. Another design based on the Fourier cell is suggested, and validated in simulation. A detailed design is developed, and the performance of this design based on the simulation results is presented.
Betty Lise Anderson, Prof. (Advisor)
Ronald Reano, Prof. (Committee Member)
123 p.
Electrical Engineering; Optics
Fourier cell; White cell; true time delay; beam steering; simulation

Recommended Citations

Citations

  • Liu, Y. (2009). The True-Time-Delay (TTD) Laser Beam Steering System Design Based on Fourier Cell [Master's thesis, Ohio State University]. OhioLINK Electronic Theses and Dissertations Center. http://rave.ohiolink.edu/etdc/view?acc_num=osu1237915468

    APA Style (7th edition)

  • Liu, Yifan. The True-Time-Delay (TTD) Laser Beam Steering System Design Based on Fourier Cell. 2009. Ohio State University, Master's thesis. OhioLINK Electronic Theses and Dissertations Center, http://rave.ohiolink.edu/etdc/view?acc_num=osu1237915468.

    MLA Style (8th edition)

  • Liu, Yifan. "The True-Time-Delay (TTD) Laser Beam Steering System Design Based on Fourier Cell." Master's thesis, Ohio State University, 2009. http://rave.ohiolink.edu/etdc/view?acc_num=osu1237915468

    Chicago Manual of Style (17th edition)

osu1237915468
1,538
© 2009, all rights reserved.
This open access ETD is published by The Ohio State University and OhioLINK.