二极管抽运固体激光器热效应的非对称性分析

doi:10.3969/j.issn.1001-2400.2011.02.025

Abstract

Abstract:

Based on the analysis of phase delay distribution between two ends of the laser crystal, thermal axial symmetry in an LD side-pumped laser is investigated. A new parameter for describing the thermal axial symmetry is proposed. The influence of pumping power, quantity, angular deviation and pumping distance deviation of LDs is analyzed by the finite element method. The result obtained indicates that the lower the pumping power is, or the more symmetrically the LDs are distributed, the more symmetrical the thermal effect appears; during the assembling process, the LD angular deviation and pumping distance deviation prevent the thermal lens effect from symmetrical axial distribution, which needs to be paid attention to and avoided.

Key words: laser, solid-state laser, thermal effect, finite element method, axial symmetry

CLC Number:

TN248.1

LIN Lin;GUO Zhen;WANG Shiyu;LI Haiqiang;CAI Defang;LI Bingbin. Analysis of thermal axial symmetry in the LD side-pumped laser[J].J4, 2011, 38(2): 141-145+186.

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Analysis of thermal axial symmetry in the LD side-pumped laser

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