Analysis of the far spatial coherent suppressed single peak field distribution of a rectangular wave-guide laser

作者：Wu Xing Fei^*; Jing Yang; Xin Jian Guo

来源：Chinese Physics, 2007, 16(4): 1031-1037.

• wave-guide array
• CO2 laser
• field distribution

A theory of the far spatial coherent-suppressed single-peak field distribution of a rectangular wave-guide CO2 laser is presented. The theoretical analysis shows that a rectangular wave-guide laser can have an output intensity distribution in far field similar to that produced from a wave-guide array laser, which is in agreement with the experimental result. A single-peak mode output is obtained within 5 metres. The experimental far-field spread angle in the bigger-Fresnel number direction is 0.63 mrad, compared to the calculated one, 0.6 mrad, and when the length of the laser resonator is changed, a double-peak or multi-peak in far-field distribution of the laser is obtained.

• 出版日期2007-4
• 单位北京理工大学