Method of making a bidirectional coupler for communication over

Details Method of making a bidirectional coupler for communication over Method of making a bidirectional coupler for communication over

1984-05-09

1990-10-09

Cashion, Jr., Merrell C.

Adhesive bonding and miscellaneous chemical manufacture

Methods

Surface bonding and/or assembly therefor

156256, 350 9615, B32B 3122

Patent

active

049618016

ABSTRACT:
An assembly for bidirectional signal transmission over a single fiber is disclosed together with its method of manufacture. A hot coating of dichoric material is applied to a surface of a glass substrate. The substrate is processed into dichoric wafers having larger dimensions than the cross section of the fiber with which it is employed. The dichroic wafer is positioned over the end face of a polished fiber beamsplitter and secured thereto by a thin layer of optical grade epoxy. A second polished fiber beamsplitter may then be secured in a similar manner to the opposite side of the wafer. The coated wafer forms an acute angle of about 25.degree. with a plan perpendicular to the axis of each beamsplitter half. A bidirectional coupler is thereby formed.

REFERENCES:
patent: 3970360 (1976-07-01), Kersten et al.
patent: 4057319 (1977-11-01), Ash et al.
patent: 4234969 (1980-11-01), Singh
patent: 4339170 (1982-07-01), Winzer
patent: 4351585 (1982-09-01), Winzer et al.
patent: 4373775 (1983-02-01), Gasparian

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