JP7206393B2 - 半導体レーザ、光伝送部品、光回線端末および光ネットワークユニット - Google Patents
半導体レーザ、光伝送部品、光回線端末および光ネットワークユニット Download PDFInfo
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Description
2Neff1Λ1=λ1 式(1)ここで、
2Neff2Λ2=λ2 式(2)ここで、
Neff1Λ1=λ1 式(1)ここで、
2Neff2Λ2=λ2 式(2)ここで、
12 上部導波路層
13 格子層
14 上部閉じ込め層
15 中央層
16 下部閉じ込め層
17 下部導波路層
18 基板
19、21 接触層
20 第2の電極層
51 コア層
52 活性層
60、71、81 光伝送部品
61、711、811 半導体レーザ
70 OLT
80 ONU
Claims (19)
- 基板と層本体とを含む半導体レーザであって、前記層本体は、前記基板上に予め設定された方向に順次形成された下部導波路層、下部閉じ込め層、中央層、上部閉じ込め層、格子層、上部導波路層、および第1の電極層を含み、前記予め設定された方向は、前記基板に近い端から前記基板から離れた端までの方向であり、前記層本体は、空洞長方向において、レーザ領域、第1の分離領域、およびフィルタリング領域に分割されており、前記第1の分離領域は、前記レーザ領域と前記フィルタリング領域との間に配置されており、前記第1の分離領域は、前記第1の電極層をエッチングすることによって形成された溝を含み、
前記レーザ領域の前記第1の電極層は、第1の電気励起信号を受信するように構成され、前記レーザ領域の前記上部閉じ込め層、前記中央層、および前記下部閉じ込め層は、前記第1の電気励起信号の作用下で光信号を生成および送信するために、前記レーザ領域の活性層を形成し、前記フィルタリング領域の前記上部閉じ込め層、前記中央層、および前記下部閉じ込め層は、フィルタリングされた光信号を送信するために、前記フィルタリング領域のコア層を形成し、
前記レーザ領域の前記格子層はブラッグ格子を含み、前記ブラッグ格子は、単一の縦モードを選択するように構成されており、前記フィルタリング領域の前記格子層は傾斜格子を含み、前記傾斜格子は光学フィルタリングを実行するように構成されており、
前記傾斜格子は、予め設定された傾斜角を有する均一格子であり、前記傾斜格子は、導波路方向に垂直な方向に対して、または導波路方向に対して傾斜しており、
前記予め設定された傾斜角は、2°以上10°以下のいずれかの角度である、半導体レーザ。 - 前記レーザ領域の各積層の材料構造は、前記フィルタリング領域の対応する積層の材料構造と同じである、請求項1に記載の半導体レーザ。
- 前記ブラッグ格子は、波長λ/4の位相シフト格子であり、λは前記レーザ領域のレーザ発振波長である、請求項1に記載の半導体レーザ。
- 前記空洞長方向における前記ブラッグ格子の長さは、100マイクロメートル以上400マイクロメートル以下の任意の長さである、請求項2に記載の半導体レーザ。
- 前記ブラッグ格子は、均一屈折率結合格子、利得結合格子、または複合結合格子のいずれか1つであり、
前記利得結合格子は、周期的に変化する利得または損失媒体を含む格子であり、前記複合結合格子は、前記均一屈折率結合格子と前記利得結合格子とを含む格子である、請求項1に記載の半導体レーザ。 - 前記ブラッグ格子は、次式(1)
2Neff1Λ1=λ1 式(1)を満たし、
Neff1は、前記レーザ領域の実効的な導波路屈折率であり、Λ1は、単一周期における前記ブラッグ格子の格子長であり、λ1は、前記ブラッグ格子のブラッグ波長である、請求項1から5のいずれか一項に記載の半導体レーザ。 - 前記傾斜格子は、次式(2)
2Neff2Λ2=λ2 式(2)を満たし、
Neff2は、前記フィルタリング領域の実効的な導波路屈折率であり、Λ2は、単一周期における前記傾斜格子の格子長であり、λ2は、前記傾斜格子のフィルタリング波長である、請求項6に記載の半導体レーザ。 - 前記空洞長方向における前記傾斜格子の長さは、150マイクロメートルである、請求項1から7のいずれか一項に記載の半導体レーザ。
- 前記半導体レーザは、レーザ領域側の端面に高反射のHR膜がメッキされており、前記半導体レーザは、フィルタリング領域側の端面に反射防止AR膜がメッキされている、請求項1から8のいずれか一項に記載の半導体レーザ。
- 前記レーザ領域のレーザ発振波長の中央値は、前記フィルタリング領域のフィルタリング波長の中央値に対応する周波数を50GHz増減させた範囲内にある、請求項1から9のいずれか一項に記載の半導体レーザ。
- 前記第1の電極層と前記上部導波路層との間に接触層がさらに形成されており、前記溝は、前記第1の電極層および前記接触層を完全にエッチングし、前記上部導波路層を部分的または完全にエッチングすることによって形成され、前記レーザ領域と前記フィルタリング領域との間の分離抵抗は1000オームより大きい、請求項1から10のいずれか一項に記載の半導体レーザ。
- 前記レーザ領域の前記活性層は、前記フィルタリング領域の前記コア層と異なり、前記フィルタリング領域の前記コア層のフォトルミネッセンス波長は、前記レーザ領域の前記活性層のフォトルミネッセンス波長よりも少なくとも100ナノメートル短い、請求項1から11のいずれか一項に記載の半導体レーザ。
- 前記層本体において、前記フィルタリング領域に対応する部分は、受信した第2の電気励起信号に基づいて光信号を増幅およびフィルタリングするために、前記上部導波路層上に前記予め設定された方向に順次形成された接触層および第2の電極層をさらに含む、または
前記層本体において、前記フィルタリング領域に対応する部分は、光信号をフィルタリングするために、前記上部導波路層上に前記予め設定された方向に形成されるが、第2の電極層を含まない接触層をさらに含む、請求項1から12のいずれか一項に記載の半導体レーザ。 - 前記中央層は、半導体材料からなるコア層、多重量子井戸層、量子ライン層、または量子ドット層である、請求項1から13のいずれか一項に記載の半導体レーザ。
- 前記レーザ領域は、前記空洞長方向において、後方反射領域、利得領域、位相領域、前方反射領域に順次分割されており、2つの隣接する領域の間に第2の分離領域が存在し、前記第2の分離領域は、前記第1の電極層を完全にエッチングし、前記上部導波路層を部分的または完全にエッチングすることによって形成され、前記隣接する領域の分離抵抗は1000オームより大きく、
前記レーザ領域において、前記後方反射領域および前記前方反射領域の前記格子層は、前記ブラッグ格子を含み、前記レーザ領域は、前記後方反射領域および前記前方反射領域の少なくとも一方を含む、請求項1から14のいずれか一項に記載の半導体レーザ。 - 前記位相領域および反射領域の前記活性層のフォトルミネッセンス波長は、前記利得領域の活性層のフォトルミネッセンス波長よりも少なくとも100ナノメートル短く、前記反射領域は、前記前方反射領域または前記後方反射領域である、請求項15に記載の半導体レーザ。
- 請求項1から16のいずれか一項に記載の半導体レーザを備えた光伝送部品。
- 光伝送部品を備える光回線端末OLTであって、前記光伝送部品は、請求項1から16のいずれか一項に記載の半導体レーザを備える、光回線端末OLT。
- 光伝送部品を備える光ネットワークユニットONUであって、前記光伝送部品は、請求項1から16のいずれか一項に記載の半導体レーザを備える、光ネットワークユニットONU。
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PCT/CN2019/070483 WO2020140286A1 (zh) | 2019-01-04 | 2019-01-04 | 半导体激光器、光发射组件、光线路终端及光网络单元 |
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JP7458885B2 (ja) | 2020-01-28 | 2024-04-01 | 日本ルメンタム株式会社 | 半導体光増幅器集積レーザ |
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CN113823993B (zh) * | 2021-11-23 | 2022-03-01 | 日照市艾锐光电科技有限公司 | 一种集成表面光栅有源滤波器的半导体激光器 |
CN114094438B (zh) * | 2022-01-24 | 2022-05-31 | 日照市艾锐光电科技有限公司 | 一种双电极共调制发射激光器 |
CN116387976B (zh) * | 2023-06-05 | 2023-12-29 | 福建慧芯激光科技有限公司 | 一种具有内嵌式多阶光栅的边发射激光器的制备方法 |
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KR20210087085A (ko) | 2021-07-09 |
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CN112740492B (zh) | 2023-04-04 |
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CN112740492A (zh) | 2021-04-30 |
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