Patent ID: 6757460
Filing Date: 2004-06-29
Classification: G02B

Abstract:
An electro-optical module for transmitting and/or receiving light of a plurality of optical data channels, comprising:an optical waveguide for carrying light of a plurality of optical data channels, said optical waveguide having an optical axis; at least one optical component, said optical component selected from the group consisting of a transmitting component providing light that is injected into said optical waveguide, and a detecting component that receives and detects light output from said optical waveguide; a first glass ferrule; a second glass ferrule; and a wavelength-selective filter; said optical waveguide forming at least two optical waveguide sections; said at least two optical waveguide sections including a first optical waveguide section having an inclined end surface and a second optical waveguide section having an inclined end surface; said inclined end surface of said first optical waveguide section being positioned along the optical axis and adjacent said inclined end surface of said second optical waveguide section; said inclined end surface of said second optical waveguide section configured to perform a function selected from the group consisting of: injecting light for one of said plurality of said optical data channels into said optical waveguide when the injected light is provided to said inclined end surface of said second optical waveguide section at an angle relative to the optical axis of said waveguide, and outputting light of one of said plurality of said optical data channels from said optical waveguide at an angle relative to the optical axis of said waveguide; said first glass ferrule receiving said first optical waveguide section and having an end surface that is inclined to correspond to said inclined end surface of said first optical waveguide section, said first glass ferrule being transparent for the light of the plurality of the optical channels; said second glass ferrule receiving said second optical waveguide section and having an end surface that is inclined to correspond to said inclined end surface of said second optical waveguide section, said second glass ferrule being transparent for the light of the plurality of the optical channels; said wavelength-selective filter coating at least one end surface that is selected from the group consisting of said inclined end surface of said first optical waveguide section and said inclined end surface of said second optical waveguide section; and light coupled between said optical component and at least one glass ferrule selected from a group consisting of said first glass ferrule and said second glass ferrule without being guided by an optical waveguide.