1990-01-17
1991-07-16
Lee, John D.
350 9620, G02B 626
Patent
active
050319841
ABSTRACT:
An electro-optical module has at least threee ports, with at least one port having an active electro-optical device for connection to electrical circuitry and at least one port having an optical port for connection to an optical fiber link. A passive coupler interfaces the various ports. The passive coupler is formed of optical fibers mounted on glass using an adhesive that exhibits refractive index-matching characteristics. The fiber-on-glass coupler is extremely small, allowing for the module to have minimal size. The coupler may be wavelength selective or wavelength insensitive. If a wavelength-selective coupler is utilized, the end surface of an optical fiber is coated with a dichroic filter to provide wavelength sensitivity. An optical fiber adapted to receive light for connection to a detector is selected to be a multi-mode fiber to increase reception of light. The remaining fibers may be single-mode fibers.
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Eide John E.
Leonard Teddy W.
Mueller Ervin H.
Alcatel NA
Heartney Phan T.
Lee John D.
Van Der Sluys Peter C.
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