Cooperative upconversion as the gain-limiting factor in Er doped miniature Al2O3 optical waveguide amplifiers
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2010 ◽
Vol 22
(6)
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pp. 362-364
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1996 ◽
Vol 2
(2)
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pp. 367-372
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1999 ◽
Vol 18
(3)
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pp. 167-178
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