Optical waveguides – With optical coupler – Particular coupling structure
Patent
1995-09-18
1999-08-24
Bovernick, Rodney
Optical waveguides
With optical coupler
Particular coupling structure
385 14, 385 39, 385 47, 385 37, G02B 612
Patent
active
059434597
ABSTRACT:
An optical duplexer, configured as a directional coupler, is integrated into an optical coupling arrangement with a fiber optic pigtail, constructed in planar-optical hybrid technology on a substrate (1). To reduce the required surface area and decrease optical cross talk, the branch of the directional coupler (waveguide 6, branch 7) is sharply bent. The bend is equipped with a reflecting mirror (11) integrated opposite the inner edge (10) of the bend. Furthermore, the waveguiding end of the bent branch (7) is equipped with a cylindrical lens. A laser diode (8) is located before this, and a photodiode (5) is located before the angled end of the straight-line integrated waveguide (2).
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Hildebrand Olaf
Hoffmann Walter
Mayer Hans-Peter
Rehm Werner
Wunstel Klaus
ALCATEL N.V.
Bovernick Rodney
Song Yisun
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