Rate-equation theory and experimental research on dual-wavelength operation of a Ti:sapphire laser

In this paper, design and construction of a tunable pulsed Ti:sapphire laser and numerical solution of the corresponding rate equations are reported. Rate equations for a four-level system are written and their numerical solution is examined. Furthermore, an optical setup is introduced. In this setup, a Ti:sapphire crystal is longitudinally pumped by the second harmonics of a Q-Switched Nd:YAG laser, and a prism is used as a wavelengthselective element as well. This setup is established for two 10 and 50 % transmission output couplers. In case of using the 10 % coupler, the output energy of the laser, for the pump energy of 36 mJ, is pulses with 3.5 mJ energy and for the 50 % coupler, with 50 mJ of pump energy, pulses with 10 mJ energy are generated. A wavelength tuning range of more than 160 nm is possible. The repetition rate of this laser is 10 Hz and the temporal duration of the pulses is about 30 ns.

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“…3, where W p stands for the pumping rate. To obtain rate equations we can use these relations [12,13]:…”

Section: Rate Equations Of a Tunable Pulsed Ti:sapphire Lasermentioning

confidence: 99%

Design and construction of a tunable pulsed Ti:sapphire laser

2015

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“…The software contains three main modules (laser generating, laser propagation and laser controlling), which can be subdivided into the following eight secondary modules: 1) Laser Output Characteristics Module. The transient laser output characteristics and the relaxation oscillation process in different laser gain mediums, such as Nd:YAG [1], Ti: Sapphire [2] and Ruby [3], can be simulated in this module. The fourth-order Runge-Kutta method is used to provide numerical solution of the rate equations with sufficient accuracy.…”

Section: Introductionmentioning

confidence: 99%

Virtual simulation experiment in the course Laser Principles and Techniques for undergraduates

2017

14th Conference on Education and Training in Optics and Photonics: ETOP 2017

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The course Laser Principle and Technology for undergraduates is a multi-physics subject with main contents of laser's basic principle, laser modulation techniques, Q-switching techniques, etc. . In order to help students understand the complex theory and to integrate the theory with the engineering practice, we developed a virtual simulation platform/software. This platform consists of three main modules (laser generation, laser propagation and laser controlling), which can be subdivided into eight secondary modules, including laser output characteristics, laser resonator, laser modulation, frequency conversion, et al. . Each module has its input and output parameters and can be modified by the user. The theoretical models and the algorithms are introduced in this article. The output characteristics of the relaxation oscillation process are presented as an example of the simulation results.

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Influence of cavity parameters on pulse properties of dual wavelength Yb:YAG mode-locked laser

Wang

Zhan

2015

Opt Quant Electron

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Rate-equation theory and experimental research on dual-wavelength operation of a Ti:sapphire laser

Cited by 6 publications

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Design and construction of a tunable pulsed Ti:sapphire laser

Design and construction of a tunable pulsed Ti:sapphire laser

Virtual simulation experiment in the course Laser Principles and Techniques for undergraduates

Influence of cavity parameters on pulse properties of dual wavelength Yb:YAG mode-locked laser

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