Optical waveguides – With optical coupler – Particular coupling structure
Patent
1995-12-28
1998-01-13
Ullah, Akm E.
Optical waveguides
With optical coupler
Particular coupling structure
G02B 630
Patent
active
057087415
ABSTRACT:
This invention is directed to a apparatus for coupling an optical fiber end holder at houses an end portion of one or more optical fibers in a spaced arrangement, to respective optical waveguides coupled to an optical integrated circuit (OIC) housed in an OIC unit. The apparatus includes a bridge member situated to extend across an interface between end surfaces of the holder and the unit. The apparatus also includes a shim layer with a first side that contacts the bridge member and a second side that contacts portions of the holder and the unit adjacent their respective ends surfaces. The shim layer, when in its uncured, liquid state, allows the ends of the optical fibers and the optical waveguides exposed in the ends surfaces of the holder and unit, respectively, to be aligned. In its cured, sold state, the shim substance fixes the postional relationship of the holder and the unit relative to the bridge member and thus also fixes the alignment of the end of the optical fiber relative to the optical waveguides. Preferably, a refractive index matching substance is situated between the ends surfaces of the unit and holder. The index matching substance is preferably a material that can withstand high temperature and humidity conditions so that the interconnection assembly of this invention is reliable and durable compared to previously known devices, particularly those devices that use epoxy between an optical fiber and an optical waveguide of an OIC.
REFERENCES:
patent: 3871935 (1975-03-01), Gloge et al.
patent: 4046454 (1977-09-01), Pugh, III
patent: 4116532 (1978-09-01), Hubbard et al.
patent: 4379771 (1983-04-01), Snyder
patent: 4636033 (1987-01-01), Gagen
patent: 4662713 (1987-05-01), Davies et al.
patent: 4735677 (1988-04-01), Kawachi et al.
patent: 4750799 (1988-06-01), Kawachi et al.
patent: 4762387 (1988-08-01), Batdorf et al.
patent: 4865407 (1989-09-01), Suzuki et al.
patent: 4973126 (1990-11-01), Degani et al.
patent: 5111518 (1992-05-01), Okada
patent: 5125057 (1992-06-01), Aberson, Jr. et al.
Lucent Technologies - Inc.
Ullah Akm E.
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