The diode-cladding-pumped Erbium praseodymium-doped fluoride device op – McqOptions

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1.	The diode-cladding-pumped Erbium praseodymium-doped fluoride device operates at wavelength.
A.	around 3 μm
B.	4 μm
C.	2.6 μm
D.	1.04 μm
Answer» B. 4 μm

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