| 摘要 |
<p>A laser (10) with a spectral converter. The novel laser (10) includes a spectral converter (20) adapted to absorb electromagnetic energy (22) in a first frequency band and re-emit energy (26) in a second frequency band, and a laser gain medium (12) adapted to absorb the re-emitted energy (26) and output laser energy (28). The spectral converter (20) includes a plurality of quantum dots (34) having an emission spectrum matching an absorption spectrum of the gain medium (12). In an illustrative embodiment, the spectral converter (20) is adapted to convert broadband energy to narrowband energy, and the gain medium (12) is a REI-doped solid-state laser gain medium.
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