High efficiency small-size planar hyperbolical lenses

P.C.A. Hammes, G.J.M. Krijnen, A. Driessen, M.K. Smit

Research output: Contribution to journalArticlePopular

3 Citations (Scopus)
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Abstract

Planar hyperbolical lenses with an average efficiency of 85% for coupling a 40 mu m wide beam into a 4 mu m wide waveguide are realised. The total length required for the beam compression is 600 mu m, with a lateral index contrast of 0.01. Good agreement is found between the BPM predicted and the measured lens efficiencies
Original languageEnglish
Pages (from-to)1064-1066
JournalElectronics Letters
Volume26
Issue number14
Publication statusPublished - 1990

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