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

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Yang, Jing and Diemeer, Mart B.J. and Geskus, Dimitri and Sengo, Gabriël and Pollnau, Markus and Driessen, Alfred (2009) Neodymium-complex-doped, photo-defined polymer channel waveguide ampliers. Optics Letters, 34 (4). pp. 473-475. ISSN 0146-9592

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Abstract:Channel waveguides based on a polymer, 6-fluorinated-dianhydride/epoxy, which is actively doped with a Nd complex, $Nd(thenoyltrifluoroacetone)_{3}$ 1,10-phenanthroline, are fabricated by a simple and reproducible procedure, spin coating a photodefinable cladding polymer onto a thermally oxidized silicon wafer, photopatterning, backfilling with the active core polymer, and spin coating with an upper cladding layer. 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 of 0.1 dB/cm, an internal net gain of 8 dB is demonstrated for a 5.6-cm-long channel waveguide amplifier. Owing to the nature of the $Nd^{3+}$ complex, energy-transfer upconversion affects the gain only at $Nd^{3+}$ concentrations above $1 x 10^{20} cm^{-3}$.
Item Type:Article
Copyright:© 2009 Optical Society of America
Faculty:
Electrical Engineering, Mathematics and Computer Science (EEMCS)
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Link to this item:http://purl.utwente.nl/publications/62807
Official URL:http://dx.doi.org/10.1364/OL.34.000473
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