Stanford researchers and a team of collaborators develop the first self-cooling optical fiber made of silica for laser applications and have quickly developed it into a laser amplifier – a critical step toward use in the real world.
Researchers have toiled for years, unsuccessfully, in pursuit of a silica optical fiber that would cool itself when excited with infrared laser light. Such a fiber would make it possible to use the most ubiquitous type of laser fiber – silica – without having to cool it externally and, theoretically, produce laser-based devices with exceptionally pure and stable frequencies.
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