Laser beam combining device

摘要

A laser beam combining device includes three lasers, a polarizer, and a mode converter. The second laser device, the mode converter, and the third laser device are located on a first straight line in that order. The polarizer intersects with the first straight line at an imaginary joint point. An included angle between the first straight line and the polarizer is about 45 degrees. The polarizer and the mode converter are positioned between the second laser device and the third laser device. The polarizer is adjacent to the second laser device. The mode converter is adjacent to the third laser device. The first laser device faces the polarizer and is located on a second straight line perpendicular to the first straight line and passing through the joint point. The three laser devices emit TE mode red, green and blue laser beams, respectively.

主权项

1. A laser beam combining device comprising a first laser device, a second laser device, a third laser device, a polarizer, and a mode converter, the second laser device, the mode converter, and the third laser device located on a first straight line and arranged in that order, the polarizer intersecting with the first straight line at an imaginary joint point, an included angle between the first straight line and the polarizer being about 45 degrees, the polarizer and the mode converter are positioned between the second laser device and the third laser device, the polarizer being adjacent to the second laser device, the mode converter being adjacent to the third laser device, the first laser device facing the polarizer and located on a second straight line which is perpendicular to the first straight line and passes through the joint point, the first laser device configured for emitting TE mode red laser beams to the joint point, the second laser device configured for emitting TE mode green laser beams to the joint point, and the third laser device configured for emitting TE mode blue laser beams to the mode converter.