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Proceedings Paper

Analytical model for output optimization of fiber-coupled laser-diode end-pumped lasers
Author(s): Yung Fu Chen; S. C. Wang; Ting-Ming Huang; C. F. Kao; Chi Luen Wang
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Paper 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.

Paper Details

Date Published: 2 May 1997
PDF: 11 pages
Proc. SPIE 2989, Modeling and Simulation of Higher-Power Laser Systems IV, (2 May 1997); doi: 10.1117/12.273679
Show Author Affiliations
Yung Fu Chen, Precision Instrument Development Ctr. (Taiwan)
S. C. Wang, National Chiao Tung Univ. (Taiwan)
Ting-Ming Huang, Precision Instrument Development Ctr. (Taiwan)
C. F. Kao, Precision Instrument Development Ctr. (Taiwan)
Chi Luen Wang, Precision Instrument Development Ctr. (Taiwan)


Published in SPIE Proceedings Vol. 2989:
Modeling and Simulation of Higher-Power Laser Systems IV
Usamah O. Farrukh; Santanu Basu, Editor(s)

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