Journal
APPLIED PHYSICS LETTERS
Volume 83, Issue 15, Pages 2991-2993Publisher
AMER INST PHYSICS
DOI: 10.1063/1.1617367
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In this work, continuous-wave broadly tunable simultaneous generation of red (650-690 nm), green (520-575 nm), and blue (425-495 nm) light in aperiodically poled Zn-diffused LiNbO3:Er3+/Yb3+ channel waveguides is reported after Ti:sapphire excitation in the 850-990 nm range. The red and green emissions arise from energy transfer and upconversion mechanisms between Yb3+ and Er3+ ions, while the blue light with a maximum efficiency of 0.04% W-1 cm(-1) is produced by quasi-phase matching processes. (C) 2003 American Institute of Physics.
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