Scaling for High Energy Laser (HEL) and Relay Engagements, or SHaRE, is a collection of scaling law functions used for generating estimates of laser system performance. The inputs to a SHaRE model include the detailed system parameters (laser power, wavelength, aperture, beam control, ...), engagement geometry (positions and velocities), target parameters (reflectivity, lethality, aimpoints, ...), and atmospheric conditions (extinction, turbulence, wind, ...). From these inputs, a SHaRE model can provide estimates of laser beam profile on target as well as required laser dwell time to desired effect. SHaRE, provides a generalized scaling law modeling toolbox in the form of a compiled library or C application programming interface (API). The modeling tools available in SHaRE are designed to be used within applications such as MATLAB or Python, but do not depend on the host applications as they can also be accessed using a programming language such as C++. Using SHaRE the analyst can greatly benefit from an organized computer code package that has the following properties:

• An organized collection of code routines that implement all the scaling laws known to be relevant to a particular class of problem.
• A convenient set of look-up tables of atmospheric or materials data that are frequently needed to evaluate the scaling-law formulas. This may include items such as atmospheric turbulence, absorption and extinction profiles, reflectance and thermal coefficients of materials, earth, and orbital geometry data.
• Ability to redefine calculation methods used in effects modeling to replace or augment the standard methods employed by SHaRE.
• Integration with the AFIT LEEDR code including use of LEEDR atmospheric models and weather cubes in SHaRE.
• Add-on toolboxes for aero-optics modeling, systems engineering engagement modeling, and imaging system modeling.
• As an API, SHaRE can be included with other mission level models such as AFSIM and BRAWLER and be used within any mission planning/fire control applications.
Training and informational resources.

Steps To Join SHaRE User Group:

1. Request a TRMC account if you do not already have one.
   Note: Access to TRMC requires a CAC or a U.S. Government Sponsor.
2. Use the Log In button in the upper right corner of this page to access the SHaRE home page.
3. Request to join the SHaRE User group by following the quick link from SHaRE home page or click here.

NOTE: The https://www.trmc.osd.mil website is for U.S. Government and contractors only.

DISTRIBUTION STATEMENT A. Approved for public release; distribution is unlimited. Public Affairs release approval #AFRL-2024-2692