Optical implementation of a time-domain beam former
Related Experiment Video
Updated: Jun 20, 2026

12:14
The Generation of Higher-order Laguerre-Gauss Optical Beams for High-precision Interferometry
Published on: August 12, 2013
Optics Letters
|September 10, 2009
Abstract:
We report on an optical implementation of a time-domain beam former that uses a low-cost, low-power, twodimensional spatial light modulator (liquid-crystal television) to generate eight beams from eight sensors. The optical architecture can be classified as a vector-matrix multiplier. The vectors are formed from sampled sensor values by a low-power total-internal-reflection electro-optic device, and the readout is done with a linear photodiode array detector. The experimental response of the broadside beam is given.
Related Concept Videos
Linear Approximation in Time Domain
Nonlinear systems often require sophisticated approaches for accurate modeling and analysis, with state-space representation being particularly effective. This method is especially useful for systems where variables and parameters vary with time or operating conditions, such as in a simple pendulum or a translational mechanical system with nonlinear springs.
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length, the...
For a simple pendulum with a mass evenly distributed along its length and the center of mass located at half the pendulum's length, the...
Discrete-time Fourier transform
The Discrete-Time Fourier Transform (DTFT) is an essential mathematical tool for analyzing discrete-time signals, converting them from the time domain to the frequency domain. This transformation allows for examining the frequency components of discrete signals, providing insights into their spectral characteristics. In the DTFT, the continuous integral used in the continuous-time Fourier transform is replaced by a summation to accommodate the discrete nature of the signal.
One of the notable...
One of the notable...
