| 摘要 |
An optical amplifier receives a seed laser having a wavelength of 1064 nm. Amplification occurs in a segmented Nd:YVO 4 gain medium pumped with a pump source. Each segment of the gain medium has a length and dopant concentration and together the segments enhance power absorption in the gain medium enabling use of a higher power end pump which increases pulse energy and average power of the laser. The first end of the gain medium includes a wedge surface which arranges a quad-pass optical amplifier to achieve high extraction efficiency. |
