End face light emitting element
First Claim
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1. An end face light emitting element, comprising:
- a semiconductor substrate, the major surface of said substrate having a first portion and a second portion which is different from the first portion;
a light waveguide layer only formed on the first portion of the major surface of said semiconductor substrate; and
a light emitting region formed on the second portion of the major surface of said semiconductor substrate and formed on said light waveguide layer so that said light emitting region forms a staircase configuration having at least two steps and so that said light waveguide layer and said light emitting region are light emitting at an end face of the end face light emitting element.
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Abstract
An end face light emitting element having a light emitting region on a semiconductor substrate to emit light from the end face thereof has a light waveguide layer between the light emitting region and the substrate with the light emitting region deformed like a staircase having at least two steps.
21 Citations
6 Claims
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1. An end face light emitting element, comprising:
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a semiconductor substrate, the major surface of said substrate having a first portion and a second portion which is different from the first portion; a light waveguide layer only formed on the first portion of the major surface of said semiconductor substrate; and a light emitting region formed on the second portion of the major surface of said semiconductor substrate and formed on said light waveguide layer so that said light emitting region forms a staircase configuration having at least two steps and so that said light waveguide layer and said light emitting region are light emitting at an end face of the end face light emitting element. - View Dependent Claims (2, 3, 4, 5, 6)
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Specification