Journal
JOURNAL OF OPTICS B-QUANTUM AND SEMICLASSICAL OPTICS
Volume 2, Issue 2, Pages 204-206Publisher
IOP PUBLISHING LTD
DOI: 10.1088/1464-4266/2/2/324
Keywords
microsphere; IR-visible up-conversion; microlaser; microcavity; erbium
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A green up-conversion laser is demonstrated in a 120 mu m diameter microsphere of Er3+-doped ZBLAN at room temperature. Lasing occurs around 540 nm with a 801 nm diode laser pump. The lasing threshold of only 30 mu W of absorbed power is over two orders of magnitude lower than the lowest previously observed in IR-visible up-conversion lasing [1].
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