MALAPROP user's guide. [For simulating laser light propagation, for CDC7600]

Technical Report · Mon Aug 01 00:00:00 EDT 1977

DOI:https://doi.org/10.2172/5208558· OSTI ID:5208558

Warren, W. E.

MALAPROP is a CDC 7600 computer program able to simulate laser light propagation through a variety of regions. The primary program task is the integration of the partial differential equation 2in/sub 0/k/sub 0/(partial delta/partial delta z) - g(z)) psi + nabla/sup 2/ psi + 2n/sub 0//sup 2/k/sub 0//sup 2/(n/sub 2//n/sub 0/) (mod psi)/sup 2/ psi = 0 for propagation of a light beam represented by the complex array psi. This equation is computationally integrated for regions with or without gain (g(z)) and for any indices of refraction (n0,n2). In addition, the beam may be spatially filtered or relayed (using FFT methods), expanded or split or passed through an aperture (followed by a no-gain propagation region with a nonlinear index of refraction = 0). Relative amplitude or phase noise may be added to the beam at selected surfaces. Two versions exist allowing for one or two beam dimensions: one space dimension (x; propagation in z) (with saturation) and two space dimensions (x,y; propagation in z) ( without saturation). Optional output includes intensity/phase information (plots and printout), power spectral density information, computed B integral, and saturation information. Initial beam configuration is essentially limited only by array sizes. 2 tables.

• Research Organization: Lawrence Livermore National Lab. (LLNL), Livermore, CA (United States)
• Sponsoring Organization: USDOE
• DOE Contract Number: W-7405-ENG-48
• OSTI ID: 5208558
• Report Number(s): UCID-17561
• Country of Publication: United States
• Language: English

Related Subjects

71 CLASSICAL AND QUANTUM MECHANICS
GENERAL PHYSICS
COMPUTER CODES
M CODES
LASER RADIATION
WAVE PROPAGATION
CDC COMPUTERS
DIFFERENTIAL EQUATIONS
NUMERICAL SOLUTION
ONE-DIMENSIONAL CALCULATIONS
REFRACTION
SIMULATION
TWO-DIMENSIONAL CALCULATIONS
COMPUTERS
ELECTROMAGNETIC RADIATION
EQUATIONS
RADIATIONS
657005* - Theoretical Physics- Optics