Optical waveguides – With optical coupler – Particular coupling structure
Patent
1996-11-01
1998-10-20
Palmer, Phan T. H.
Optical waveguides
With optical coupler
Particular coupling structure
385 14, 385321, 385147, G02B 6421
Patent
active
058259520
ABSTRACT:
An optical circuit element has a beam splitter which is formed with a plurality of grooves in optical waveguides, or formed in such a manner that the central axes of the waveguides to be coupled are set off from one another or the shape of the waveguides is modified. Further, an integrated type optical circuit device include: an optical circuit element having a plurality of optical waveguides on the input side and having a beam splitter which is formed with a plurality of grooves in the optical waveguides to split the light guided through the optical waveguides: and plural kinds of input light generating sources each arranged corresponding to one of the optical waveguides on the input side.
REFERENCES:
patent: 4285571 (1981-08-01), Winzer
patent: 5432876 (1995-07-01), Appeldorn et al.
Yasuo Shibata et al. "Semiconductor Optical Branching Circuit with Total-Reflecting Mirror" 52nd General Presentation Assembly, Society of Applied Physics, Japan, Oct. 1991: p. 1010.
Kawanishi Hidenori
Shimonaka Atsushi
Palmer Phan T. H.
Sharp Kabushiki Kaisha
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