Optical interconnection device
First Claim
1. An optical interconnection device comprising:
- a light source;
a plurality of optical interconnecting elements which are located on an output side of said light source and each of which has first and second major surfaces and comprises an integral unit made of an optical semiconductor element and a grating lens having concentric annular grooves and concentric annular projections, and two electrodes formed on the first and second major surfaces, respectively, said optical semiconductor element and said grating lens formed on the first major surface for emitting or receiving light; and
a light-receiving element located on an output side of said optical interconnecting elements,wherein said optical interconnecting elements are arranged at substantially regular intervals, each positioned such that said semiconductor element and said grating lens face to the same direction, and the grating lens of each of said optical interconnecting elements has optical characteristic which compensates for light-transmitting characteristic corresponding to the interval between the optical interconnecting element and the next optical interconnecting element.
1 Assignment
0 Petitions
Accused Products
Abstract
Disclosed herein is an optical interconnection device having a light source, a plurality of optical interconnecting elements, and a light-receiving element. The optical interconnecting elements are located on an output side of the light source. Each of the elements has first and second major surfaces and comprises an integral unit made of an optical semiconductor element and a grating lens having concentric annular grooves and concentric annular projections, and two electrodes formed on the first and second major surfaces, respectively. The optical semiconductor element and grating lens of each optical interconnecting element are formed on the first major surface, for emitting or receiving light. The light-receiving element is located on an output side of the optical interconnecting elements. The optical interconnecting elements are arranged at substantially regular intervals, each positioned such that the semiconductor element and the grating lens face to the same direction. The grating lens of each of the optical interconnecting elements has optical characteristic which compensates for light-transmitting characteristic corresponding to the interval between the optical connecting element and the next optical interconnecting element.
64 Citations
20 Claims
-
1. An optical interconnection device comprising:
-
a light source; a plurality of optical interconnecting elements which are located on an output side of said light source and each of which has first and second major surfaces and comprises an integral unit made of an optical semiconductor element and a grating lens having concentric annular grooves and concentric annular projections, and two electrodes formed on the first and second major surfaces, respectively, said optical semiconductor element and said grating lens formed on the first major surface for emitting or receiving light; and a light-receiving element located on an output side of said optical interconnecting elements, wherein said optical interconnecting elements are arranged at substantially regular intervals, each positioned such that said semiconductor element and said grating lens face to the same direction, and the grating lens of each of said optical interconnecting elements has optical characteristic which compensates for light-transmitting characteristic corresponding to the interval between the optical interconnecting element and the next optical interconnecting element. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10)
-
-
11. An optical interconnection device comprising:
-
a light source; an odd number of optical interconnecting elements which are located on an output side of said light source and each of which has first and second major surfaces and comprises an integral unit made of an optical semiconductor element and a grating lens having concentric annular grooves and concentric annular projections, and two electrodes formed on the first and second major surfaces, respectively, said optical semiconductor element and said grating lens formed on the first major surface for emitting or receiving light; and
a light-receiving element located on an output side of said optical interconnecting elements,wherein said optical interconnecting elements are arranged at substantially regular intervals, each positioned such that said semiconductor element and said grating lens face to the same direction;
the grating lens of each of said optical interconnecting elements has an optical characteristic which compensates for a light-transmitting characteristic corresponding to the interval between the optical interconnecting element and the next optical interconnecting element;
light emitted from said light source is applied to said light-receiving element through the grating lenses of said optical interconnecting elements; and
light emitted from the optical semiconductor element of the first of said optical interconnecting elements is applied to said light-receiving element through the grating lenses of the remaining optical interconnecting elements. - View Dependent Claims (12)
-
-
13. An optical semiconductor element comprising:
-
a semiconductor substrate; a light-absorbing layer formed on said semiconductor substrate; an active region formed in the surface of said light-absorbing layer, for receiving and emitting light; a non-active region formed in the surface of said light-absorbing layer and surrounding said active region, for receiving and emitting light; and a protective layer covering said non-active region, wherein said active region and said non-active region constitute a mesa structure, and a light-shielding mask blocks light applied toward said nonactive region. - View Dependent Claims (14, 15, 16)
-
-
17. An optical interconnection device comprising:
-
a light source; a plurality of optical interconnecting elements which are located on an output side of said light source and each of which has first and second major surfaces and comprises an integral unit made of an optical semiconductor element and a grating lens having concentric annular grooves and concentric annular projections, and two electrodes formed on the first and second major surfaces, respectively, said optical semiconductor element and said grating lens formed on the first major surface for emitting or receiving light; a light-receiving element located on an output side of said optical interconnecting elements, for converting an optical signal into an electric signal; a diode connected to an output of said light-receiving element and forward-biased with respect to the electric signal supplied from said light-receiving element; and an output terminal connected between said diode and said light-receiving element, wherein said optical interconnecting elements are arranged at substantially regular intervals, each positioned such that said semiconductor element and said grating lens face to the same direction, and the grating lens of each of said optical interconnecting elements has optical characteristic which compensates for light-transmitting characteristic corresponding to the interval between the optical interconnecting element and the next optical interconnecting element. - View Dependent Claims (18, 19, 20)
-
Specification