Neodymium-complex-doped, photo-defined polymer channel waveguide amplifiers


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Yang, J. and Diemeer, M.B.J. and Geskus, D. and Sengo, G. and Pollnau, M. and Driessen, A. (2008) Neodymium-complex-doped, photo-defined polymer channel waveguide amplifiers. In: 13th Annual Symposium of the IEEE LEOS Benelux Chapter, 27-28 November 2008, Enschede, The Netherlands.

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Abstract:Polymer-based, 6-FDA/epoxy channel waveguides doped with a Nd complex, $Nd(TTA)_3phen$, are fabricated by a simple and reproducible procedure mainly based on spin coating and photo-definition. Photoluminescence at 1060 nm from the $Nd^{3+}$ ions with a lifetime of 130 μs is observed. Optical gain at 1060 nm is demonstrated in channel waveguides with different $Nd^{3+}$ concentrations. By accounting for the waveguide loss, an internal net gain of 8 dB is demonstrated for a 5.6-cm-long channel waveguide amplifier. Due to the nature of the $Nd^{3+}$ complex, energy-transfer upconversion affects the gain only at $Nd^{3+}$ concentrations above 1×$10^{20}cm^{-3}$.
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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