JP6510803B2 - 分布帰還型半導体レーザ素子 - Google Patents
分布帰還型半導体レーザ素子 Download PDFInfo
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- JP6510803B2 JP6510803B2 JP2014248256A JP2014248256A JP6510803B2 JP 6510803 B2 JP6510803 B2 JP 6510803B2 JP 2014248256 A JP2014248256 A JP 2014248256A JP 2014248256 A JP2014248256 A JP 2014248256A JP 6510803 B2 JP6510803 B2 JP 6510803B2
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- semiconductor laser
- diffraction grating
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- 239000004065 semiconductor Substances 0.000 title claims description 47
- 238000005253 cladding Methods 0.000 claims description 44
- 150000001875 compounds Chemical class 0.000 claims description 10
- 229910000980 Aluminium gallium arsenide Inorganic materials 0.000 claims description 9
- WGPCGCOKHWGKJJ-UHFFFAOYSA-N sulfanylidenezinc Chemical group [Zn]=S WGPCGCOKHWGKJJ-UHFFFAOYSA-N 0.000 claims description 3
- 230000000052 comparative effect Effects 0.000 description 17
- 239000013078 crystal Substances 0.000 description 6
- 238000009826 distribution Methods 0.000 description 6
- 230000010287 polarization Effects 0.000 description 5
- 239000000758 substrate Substances 0.000 description 5
- 239000000463 material Substances 0.000 description 4
- 238000005259 measurement Methods 0.000 description 4
- 238000006243 chemical reaction Methods 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 229910052785 arsenic Inorganic materials 0.000 description 2
- 239000004020 conductor Substances 0.000 description 2
- 238000005530 etching Methods 0.000 description 2
- JLTRXTDYQLMHGR-UHFFFAOYSA-N trimethylaluminium Chemical compound C[Al](C)C JLTRXTDYQLMHGR-UHFFFAOYSA-N 0.000 description 2
- 230000015572 biosynthetic process Effects 0.000 description 1
- 239000000919 ceramic Substances 0.000 description 1
- 238000005229 chemical vapour deposition Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000006866 deterioration Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000002474 experimental method Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- 239000012212 insulator Substances 0.000 description 1
- 238000011835 investigation Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000003647 oxidation Effects 0.000 description 1
- 238000007254 oxidation reaction Methods 0.000 description 1
- 230000005855 radiation Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 229910052709 silver Inorganic materials 0.000 description 1
- 239000004332 silver Substances 0.000 description 1
- XCZXGTMEAKBVPV-UHFFFAOYSA-N trimethylgallium Chemical compound C[Ga](C)C XCZXGTMEAKBVPV-UHFFFAOYSA-N 0.000 description 1
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- Semiconductor Lasers (AREA)
Description
Claims (1)
- 下部クラッド層と、
前記下部クラッド層上に形成された活性層と、
前記活性層上に形成された上部クラッド層と、
前記下部クラッド層又は前記上部クラッド層に設けられた回折格子層と、
を備え、共振器長が2000μm以上6000μm以下の分布帰還型半導体レーザ素子において、
前記活性層の共振器長の方向及び厚み方向の双方に垂直な方向を幅方向とした場合、
前記回折格子層は、
閃亜鉛鉱型構造のIII−V族化合物半導体であるAlGaAsからなり、
Alの組成は0%よりも大きく10%以下であり、
前記幅方向に沿って延びた複数の凸部及び凹部からなる凹凸構造を有しており、
前記凹凸構造の頂面及び底面は(100)面であり、
前記凹凸構造の前記幅方向に沿った側面は(111)B面であり、
前記凹部内には、屈折率が異なるよう、前記回折格子層とはAl組成が異なるAlGaAsからなる前記下部クラッド層又は前記上部クラッド層が埋め込まれている、
ことを特徴とする分布帰還型半導体レーザ素子。
Priority Applications (1)
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JP2014248256A JP6510803B2 (ja) | 2014-12-08 | 2014-12-08 | 分布帰還型半導体レーザ素子 |
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JP2014248256A JP6510803B2 (ja) | 2014-12-08 | 2014-12-08 | 分布帰還型半導体レーザ素子 |
Publications (2)
Publication Number | Publication Date |
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JP2016111231A JP2016111231A (ja) | 2016-06-20 |
JP6510803B2 true JP6510803B2 (ja) | 2019-05-08 |
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JP2014248256A Active JP6510803B2 (ja) | 2014-12-08 | 2014-12-08 | 分布帰還型半導体レーザ素子 |
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JP (1) | JP6510803B2 (ja) |
Family Cites Families (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JPH07221392A (ja) * | 1994-02-08 | 1995-08-18 | Mitsubishi Electric Corp | 量子細線の作製方法、量子細線、量子細線レーザ、及び量子細線レーザの作製方法、回折格子の作製方法、及び分布帰還型半導体レーザ |
JP2002064244A (ja) * | 2000-06-06 | 2002-02-28 | Furukawa Electric Co Ltd:The | 分布帰還型半導体レーザ素子 |
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