Propagation of 3-D Beams Using a Finite-Difference Algorithm: Practical Considerations
Abstract
We discuss practical aspects of the use of the finite-difference, alternating-direction implicit (ADI), numerical solution of the paraxial wave equation, for the free-space propagation of light beams. Results of calculations solving the finite-difference equations are compared with fresnal-integral solutions. Calculations are for round beams, but the field is represented in cartesian coordinates. Modes for empty unstable resonators are also obtained using the finite-difference algorithm and are compared with fresnal-difference.
Document Details
- Document Type
- Technical Report
- Publication Date
- May 22, 2011
- Accession Number
- ADA544032
Entities
People
- Alan H. Paxton
Organizations
- Air Force Research Laboratory