Circurs: Circular resonators simulator

	Circurs
	Circular resonators simulator

Kirankumar R. Hiremath
k.r.hiremath

gmail.com

Institute for Scientific Computing and Mathematical Modeling
Department of Mathematics
Karlsruhe Institute of Technology
Karlsruhe, Germany

and

Applied Analysis and Mathematical Physics Group
Department of Applied Mathematics
University of Twente
Enschede, The Netherlands

10 May 2010

(For any queries about Circurs, please contact me on the above email address.)

Introduction

"Circurs" (Circular resonators simulator) is a frequency domain semianalytic simulation tool for 2D circular resonators. This user manual describes use of Circurs to get

bent mode propagation constants, bent mode fields, etc.
scattering matrices of bent-straight waveguides couplers, etc.
resonator spectral response, resonator field plots, etc.

Circurs consists of four modules:

2D straight waveguides semianalytic mode solver	2D bent waveguides semianalytic mode solver Bent waveguides model description Numerics Bent waveguides simulator: Implementation Bent waveguides simulator: Example
2D bent-straight waveguide couplers simulator CMT based Bent-straight waveguide couplers model Coupled mode equations Transfer matrix and Scattering matrix Numerics Couplers simulator: Implementation Couplers simulator: Example	2D microresonators simulator Microresonators model: Setting Microresonators model: Description Resonators spectral response Microresonators simulator: Implementation Microresonators simulator: Example

Prerequisites

Circurs is developed under Linux operating system. To use this code, one needs g++ compiler, f77 compiler, make. For visualization of fields, one needs MATLAB.

Installing and compiling Circurs

Download Circurs source code: circurs.zip
Unzip the file "circurs.zip", which will create a directory "circurs". It contains two subdirectories "Apps" and "src", and a script file "mo".
- Apps: This subdirectory contains various example files which are ready to use.
- src: This subdirectory contains Circurs source code and a "makefile".
Download the required Metric code files from Metric site, and keep them in "src" directory of Circurs code.
Copy a suitable example file, e.g. "bwg_example.cpp" from subdirectory "App" to working directory "circurs" (or create a new file).
To compile this file, type "./mo bwg_example". The code will be complied. For the first time compilation, it will take some time. But once that is done, for subsequent example files, it will not take that much time.
An executable "bwg_example" will be created. Run it.