Check this link.
OSCAR is a FFT code which is able to simulate Fabry Perot cavities with arbitrary mirror profiles. OSCAR (Optical Simulation Containing Ansys Results) is used to simulate the steady state electric fields in optical cavities with realistic mirrors. The main advantage of OSCAR over other similar packages is the simplicity of its code requiring only a short time to master. As a result, even for a beginner, it is relatively easy to modify OSCAR to suit other specific purposes. The Matlab code can be downloaded here.
Finesse: At GEO 600 we have created a fast and easy to use interferometer simulation. We want to design and debug laser interferometers with a simple but powerful tool. We want to be able to simulate many different user-defined optical setups and we would like to playfully teach and learn more about laser optics. Finesse has a long pedigree and has benefited from years of real-life employment by the optics groups of gravitational wave detectors. While some of the code is ten years old we are committed to adapting the code to new challenges posed by new types of interferometry in future projects, maintaining the code and the trust which has been built through years of testing against experimental results. A GUI interface for Finesse. A Python interface and tools for Finesse Check the following paper for details:
Dr. Marcel Leutenegger developed a model for this purpose. Check his website here. This website also include a Matlab code for Focus field calculations. The figure shown above is simply taken from Dr. Marcel's website.
Dr. Marcel Leutenegger also freely provide Matlab Toolbox for speeding up Matlabe code under the GNU Lesser General Public License. Check here for more details. The diameter of a the back aperture of an objective lens is :
D = 2nf*sin(alpha) = 2f NA The figure above is cited from this paper: "Simulation of an oil immersion objective lens: A simplified ray-optics model considering Abbe’s sine condition", Optics Express, Vol. 16, Issue 26, pp. 21170-21183 (2008) The dream of integrated photonic chip is not far away. Here are some related information on this topic:
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