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Title
INTEGRIERT OPTISCHER FELDWEITENTRANSFORMATOR
Date Issued
2000
Author(s)
Weinert, M.
Heidrich, H.
Patent No
1996-19613701
Abstract
DE 19613701 A UPAB: 19971113 The transformer consists of several buffer layers (5) on a substrate (4), separated by conductive layers (6). On the top buffer layer is located a rib waveguide (7, 8) with a constant rib width (W1), containing a tapered region (9) between the chip- and fibre-side interface (3, 2). From the fibre-side interface (2) extends a section (11) up to the tapered region, in which the rib (8) extends up to the fibre-side interface. The wave conducting layer (7) of the rib waveguide is completely removed, and the exposed buffer layer, symmetrical to the through rib, is reduced to a width (W2), larger than the rib width. USE/ADVANTAGE - For integrated optical component, e.g. chip fibre coupling. Increased polarisation independence.
Language
de
Patenprio
DE 1996-19613701 A: 19960329