Progress on micro-structured $KY{(WO_4)}_2$ waveguides for optically active devices


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Geskus, D. and Bradley, J.D.B. and Aravazhi, S. and Wörhoff, K. and Pollnau, M. (2007) Progress on micro-structured $KY{(WO_4)}_2$ waveguides for optically active devices. In: 12th Annual Symposium IEEE/LEOS Benelux, 17-18 December 2007, Brussels, Belgium (pp. pp. 103-106).

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Abstract:The optical properties of rare-earth-ion (RE) doped $KY{(WO_4)}_2$ $(KYW)$ form an excellent basis for the realization of optically active devices such as lasers and amplifiers. External-cavity laser experiments on KYW:Yb planar waveguides confirmed these predictions by high slope efficiencies up to 80%. In-house equipment enables the epitaxial growth of KYW:RE layers and their optical characterization. Combined with micro-structuring of KYW:RE layers using novel reactive-ion-etching methods (to an etch depth of ~390 nm) and use of simulation software (Field Designer), this will lead to novel on-chip integrated lasers and amplifiers and a profound understanding of the physics and optimization of these devices.
Item Type:Conference or Workshop Item
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Electrical Engineering, Mathematics and Computer Science (EEMCS)
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