| 摘要 |
<p>A laser (2) having a line-narrowing output coupler. This output coupler (5) reflects a portion of light generated in the gain medium (3) and provides a spectral narrowing of that reflected light. A portion of the line narrowed beam is directed back into the gain medium for further amplification and a portion is transmitted as a part of the laser output. In a preferred embodiment, the laser is line narrowed in the rear as well as by the line narrowing output coupler.</p> |
