(ODE45) problem of solving laser rate equation

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SUMMARY

The forum discussion centers on simulating the passive Q-switch process of a Nd3+:NaY(WO4)2 laser using MATLAB's ODE45 function. The user reports discrepancies between their simulation results and the findings of the reference study by Zhao et al. (2005). They have provided a detailed description of the problem in a .doc file, along with the MATLAB script and function necessary for replication. Assistance is requested to resolve the inconsistencies in the simulation outcomes.

PREREQUISITES
  • Familiarity with MATLAB programming and its ODE45 function
  • Understanding of laser physics, specifically passive Q-switching
  • Knowledge of Nd3+:NaY(WO4)2 laser operation principles
  • Ability to interpret scientific literature in optics and laser technology
NEXT STEPS
  • Review the reference study by Zhao et al. (2005) for detailed methodology
  • Examine MATLAB's ODE45 documentation for advanced usage techniques
  • Explore laser dynamics simulations using MATLAB
  • Investigate common issues in numerical simulations of laser systems
USEFUL FOR

Researchers and engineers in the field of optics and laser technology, particularly those involved in laser simulations and modeling, will benefit from this discussion.

tianyihitedu
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I want to simulate the reference’s passive Q switch process. The reference is
Shengzhi Zhao, Lei Chen, Hongming Zhao, Guiqiu Li, Lu Zhang, Kejian Yang. Laser–diode-pumped passively Q-switched Nd3+:NaY(WO4)2 laser with GaAs saturable absorber. Optics & Laser Technology 37 (2005) 187–191.
I used ODE45 to solve this problem, but the result was not agreed with the reference.I have described the problem in a .doc file in detail. Could anyone help me to solve this problem?

The reference, MATLAB script file and function were also included in the attached files.
 

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Somebody can not open this .doc file, so I changed this file again. The file is attached.
 

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