Optical waveguides – With optical coupler – Particular coupling structure
Patent
1997-07-23
1999-08-31
Bovernick, Rodney
Optical waveguides
With optical coupler
Particular coupling structure
385 39, G02B 627
Patent
active
059464348
ABSTRACT:
A polarization device is provided for splitting a transverse electric (TE) mode component and a transverse magnetic (TM) mode component into two output waveguides and for coupling the inputs of a TE mode component and a TM mode component to an output optical waveguide. The integrated optic polarization device includes, in an integrated optic substrate, a first waveguide capable of simultaneously allowing to pass through two mode components, whose polarizations are perpendicular to each other, and a second waveguide, in the same substrate, for allowing to pass through only one of the two polarization mode components. The device has a coupled area having a predetermined length and across which the first and second waveguides are parallel and separated by a predetermined distance. The device also has a non-coupled area in which the first and second waveguides are separated by a distance wider than the predetermined distance. The polarization device can either split or couple the polarization modes and can be made by a simple fabrication process that does not require a difficult process for setting up a precise branching angle, as is required in an existing Y-type splitter.
REFERENCES:
patent: 3909108 (1975-09-01), Taylor
patent: 3967878 (1976-07-01), Caton
patent: 4669815 (1987-06-01), Thaniyavarn
patent: 4674829 (1987-06-01), Bulmer et al.
patent: 4772084 (1988-09-01), Bogert
patent: 4778234 (1988-10-01), Papuchon et al.
patent: 4792200 (1988-12-01), Amann et al.
patent: 4889401 (1989-12-01), Klement et al.
patent: 4911513 (1990-03-01), Valette
patent: 4943131 (1990-07-01), Taki
patent: 5011248 (1991-04-01), Taki
patent: 5111517 (1992-05-01), Riviere
patent: 5125050 (1992-06-01), Deri
patent: 5151957 (1992-09-01), Riviere
patent: 5268976 (1993-12-01), Lerminiaux
patent: 5319494 (1994-06-01), Miyaguchi et al.
patent: 5436992 (1995-07-01), Wang et al.
patent: 5475771 (1995-12-01), Hosoi
patent: 5752382 (1998-05-01), Shionoya et al.
Masuda et al. "An optical TE-TM mode splitter using a LiNbO branching waveguide", American Institute of Physics, pp. 20-21, Apr. 21, 1980.
Bovernick Rodney
Bushnell Esq. Robert E.
Kang Ellen E.
Samsung Electronics Co,. Ltd.
LandOfFree
Integrated optic polarization device and method does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Integrated optic polarization device and method, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Integrated optic polarization device and method will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2428325