Optical fiber electro-optical module

Details Optical fiber electro-optical module Optical fiber electro-optical module

H - Electricity

01

L

345/16, 345/60

H01L 31/12 (2006.01) G02B 6/28 (2006.01) G02B 6/34 (2006.01) G02B 6/42 (2006.01)

Patent

CA 2033543

ABSTRACT OF THE DISCLOSURE An electro-optical module has at least three 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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