Optical waveguides – With optical coupler – Particular coupling structure
Patent
1999-03-19
2000-12-05
Palmer, Phan T. H.
Optical waveguides
With optical coupler
Particular coupling structure
385 48, 385 47, 385 45, 359333, G02B 630
Patent
active
06157760&
ABSTRACT:
A two-way optical communication module includes a main waveguide which is optically coupled to an optical fiber and directs light incident from the optical fiber to a light-receiving element and a sub waveguide which is optically coupled to the side of the main waveguide and directs light emitted from a light-emitting element to the optical fiber so as to carry out an efficient two-way optical communication by using one optical fiber without the necessity for an optical branch device. With this arrangement, it is possible to provide an inexpensive and small-sized two-way optical communication module which readily enables an integration with other elements so as to exhibit suitability for a small-scale network, and to provide a two-way optical communication link which uses the two-way optical communication module.
REFERENCES:
patent: 5170451 (1992-12-01), Ohshima
patent: 5500763 (1996-03-01), Ota
patent: 5757995 (1998-05-01), Chen et al.
Fujita Hideaki
Ishii Yorishige
Matsushima Toshiyuki
Okada Kuniaki
Conlin David G.
Palmer Phan T. H.
Sharp Kabushiki Kaisha
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