SEMICONDUCTOR LASER DIODE
To provide a semiconductor laser diode of which a work voltage is not increased even when changing the width of an electric contact on a ridge.SOLUTION: A semiconductor laser diode 100 includes at least a semiconductor volume layer body 2 including a waveguide structure 9 that includes at least one...
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Main Authors | , , |
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Format | Patent |
Language | English Japanese |
Published |
07.03.2019
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Subjects | |
Online Access | Get full text |
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Summary: | To provide a semiconductor laser diode of which a work voltage is not increased even when changing the width of an electric contact on a ridge.SOLUTION: A semiconductor laser diode 100 includes at least a semiconductor volume layer body 2 including a waveguide structure 9 that includes at least one active layer 3 and a wave. The wave is extended to a back surface from a light output surface in a longitudinal direction, and is defined with a wave side surface 11 in a lateral direction which is vertical to the longitudinal direction. The wave includes: a first region 910; and a second region 920 contacted to the first region in a vertical direction vertical to the longitudinal direction and a lateral direction. The wave includes a first semiconductor material in the first region 910, and includes at least one second semiconductor material different from the first semiconductor material in the second region 920. The wave includes a first width 919 in the first region 910, and includes a second width 929 larger than the first width 919 in the second region 920.SELECTED DRAWING: Figure 2
【課題】リッジ上の電気コンタクトの幅を変化させても動作電圧が増加しない半導体レーザーダイオードを提供する。【解決手段】半導体レーザーダイオード100は、少なくとも1つの活性層3とウェブを有するウェブ導波構造9とを有する半導体積層体2を含み、ウェブは、縦方向で光出力面から背面へ延在しており、かつ縦方向に対して垂直な横方向でウェブ側面11によって画定されている。ここで、ウェブは、第1の領域910と、縦方向および横方向に対して垂直な垂直方向で第1の領域に接する第2の領域920とを有する。ウェブは、第1の領域910に第1の半導体材料を有し、第2の領域920に第1の半導体材料とは異なる少なくとも1つの第2の半導体材料を有する。ウェブは、第1の領域910では第1の幅919を有し、かつ第2の領域920では第1の幅919より大きい第2の幅929を有する。【選択図】図2 |
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Bibliography: | Application Number: JP20180152350 |