System and method for packaging a monitor photodiode with a laser in an optical subassembly
AssigneeIntel Corporation
InventorDale L. Capewell
Life of this patent
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Abstract
A system and method of monitoring a laser output power and laser extinction ratio includes an optical subassembly physically placed between a point light source and a optical fiber device. The optical subassembly creates a convergent light beam by reflecting a collimated light beam from the point light source off an interior surface of a first side of the optical subassembly. The optical subassembly creates an incident ray of the convergent light beam by including on a second side of the optical subassembly a wedge-shaped air gap.
Claims21
An optical communication system, comprising:
- a receiving optical fiber device including an optical fiber core and optical fiber cladding;
- a point light source to generate and transmit a point light beam;
- and
- an optical subassembly adjacent to the receiving optical fiber device, including
- an interior surface of a first side to receive the point light beam and to create a convergent light beam, the interior surface of the first side being a reflective surface, and
- a second side that the convergent light beam travels through to the receiving optical fiber device, wherein the second side is configured and positioned to create a wedge-shaped air gap, wherein the wedge-shaped air gap creates an incident ray of the convergent light beam, and the incident ray is directed towards the interior surface of the first side.
An optical subassembly, comprising:
- an interior surface of a first side to create a convergent light beam, the interior surface of the first side being a reflective surface;
- and
- a second side that the convergent light beam travels through, wherein the second side is configured and positioned to form a wedge-shaped air gap, and the wedge-shaped air gap creates an incident ray of the convergent light beam, wherein the incident ray is directed towards the interior surface of the first side.
A method of monitoring a point light source output power and extinction ratio, comprising:
- creating a convergent light beam by reflecting a collimated light beam wave off an interior surface of a first side of an optical subassembly, the interior surface of the first side being a reflective surface;
- and
- creating an incident ray of the convergent light beam by utilizing a wedge-shaped air gap in a second side of the optical subassembly to create the wedge-shaped air gap, wherein the incident ray is directed towards the interior surface of the first side of the optical assembly.
Dependencies are inferred from the claim text.