Paper
2 May 1997 Analytical model for output optimization of fiber-coupled laser-diode end-pumped lasers
Yung Fu Chen, S. C. Wang, Ting-Ming Huang, C. F. Kao, Chi Luen Wang
Author Affiliations +
Abstract
A general model has been developed for the output power optimization of fiber-coupled laser-diode end-pumped lasers by including the thermal effect into the analysis. The optical path difference (OPD) distribution has been derived as a function of the pump-beam quality, focus position of pumping light, and pump radius at the focal plane under the assumption that the end faces of the crystal are thermally insulated. With the derived OPD, the diffraction losses arising from thermal-induced spherical aberration have been estimated by the strehl intensity ratio. The practical example of a Nd:YVO4 laser pumped by a 1.2 W fiber-coupled laser diode is considered to illustrate the utility of the present model. Experimental results have shown a fairly good agreement with the theoretical predictions.
© (1997) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Yung Fu Chen, S. C. Wang, Ting-Ming Huang, C. F. Kao, and Chi Luen Wang "Analytical model for output optimization of fiber-coupled laser-diode end-pumped lasers", Proc. SPIE 2989, Modeling and Simulation of Higher-Power Laser Systems IV, (2 May 1997); https://doi.org/10.1117/12.273679
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Cited by 1 scholarly publication.
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KEYWORDS
Fiber lasers

Diffraction

Thermal effects

Semiconductor lasers

Diodes

Absorption

Fiber coupled lasers

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