Siemens Aktiengesellschaft

Rudolf Falkenstein

Franz Taumberger

Herbert Prussas

Reiner Trommer

Detlef Haberland

Helmut Haltenorth

Michael Kaindl

Transmitting/receiving device with a diode and an optical fiber optically coupled to an optical window of the diode, where the diode is positioned on a support with a lead-in for inserting the optical fiber. For such a transmitting/receiving device the optical fiber of the diode can be easily and accurately adjusted and subsequently permanently positioned. The invention makes provisions for a cone-shaped lead-in with the diode located at the larger opening of the lead-in. This results in an especially easy adjustment of the optical fiber with respect to the diode. The device can be used in opto-electronic receivers having a so-called 'pigtail' connection.

Transmitting receiving device with a diode mounted on a support

A glass fiber bushing is provided for a wall opening of a housing which has a light-transmitting or a light receiving component mounted therein, the component having an optically-active location to be optimally coupled to the tip of the glass fiber. At least in the region of the opening through the housing, the glass fiber is firmly surrounded by and is secured in a stiff tube which is inserted through the wall opening. An adjustment member which adjusts the glass fiber position is slipped with a tight clearance over the tube and/or over a transition piece which is secured to the tube. An end face of the adjustment member is oriented toward the exterior surface of the housing in the region surrounding the wall opening. At least close to the tip of the glass fiber, the outer diameter of the glass fiber or of a glass fiber protective layer is surrounded by the inner wall of the tube with so little play that the tube defines the position of the tip of the glass fiber. In a region between the adjustment member and the component the tube is plugged through an elastic membrane of the wall opening. A surface of the membrane is secured to the housing in the area of the wall opening. The end face of the adjustment member which adjusts the position of the tube and, therewith, the position of the glass fiber is secured to the exterior surface of the housing.

Glass fiber bushing through a wall opening of a housing and method of

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Alzenau, Germany

Rudolf Falkenstein