Analyses of different configurations for a multiple rod Nd:YAG system with a one-way travelling probe beam

作者：Wang You^*; Kan Hirofumi; Ogawa Takayo; Wada Satoshi

来源：Journal of Optics, 2011, 13(1).

DOI：10.1088/2040-8978/13/1/015703

• Aperture obstruction
• Birefringence compensation
• DPSSL
• Thermal lens effects
• Thermally induced birefringence

In this paper, the birefringence in an LD-side-pumped solid-state laser (LSPSSL) system is studied by using a quasi plane-wave probe beam. The effects on birefringence compensation have been investigated for different coupling systems arranged between two tandem-set rods. Both the aperture obstruction and the thermally induced lens effect have been taken into consideration in the theoretical explanation. It is shown that most birefringence can be successfully removed by using a suitable lens system as well as a quartz 90° rotator. In construction of a real resonator, such performances as the birefringence compensation, the extraction efficiency, and the high-order-mode control must be carefully balanced at the same time. Although the conclusions are based on analyses of a one-way travelling wave, the methodology introduced in this paper is thought to be useful for a stationary-wave design of the laser oscillator.

• 出版日期2011