A long InGaAsP/InP waveguide section with small dimensions

P. Verboom, Y.S. Oei, E.C.M. Pennings, M.K. Smit, J.W.M. Uffelen, van, H. Brug, van, I. Moerman, G. Coudenijs, P. Demeester

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A spirally folded InGaAsP/InP ridge-type waveguide with 12.4 mm length, corresponding to 4-cm free-space length, on a device area of 1 mm*1 mm, was realized. Insertion loss was measured to be 4 dB for TE-polarization and 4.5 dB for TM-polarization, most of which is caused by normal propagation loss (2 dB/cm for straight waveguides). Excess bending loss is estimated to be 1.5 dB for TE and 2 dB for TM-polarization
Original languageEnglish
Pages (from-to)1112-1114
JournalIEEE Photonics Technology Letters
Issue number10
Publication statusPublished - 1992


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