JP2007173514A - 大口径表面発光型半導体レーザ素子を用いた光情報処理装置 - Google Patents
大口径表面発光型半導体レーザ素子を用いた光情報処理装置 Download PDFInfo
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Abstract
【解決手段】 光情報処理装置の走査型露光装置400は、VCSELを含む光源と、光源より発せられるレーザ光を感光ドラム480に集光する光学系と、集光されたレーザ光を感光体ドラム480上で走査するポリゴンミラー440等を含む走査機構とを備えている。VCSELの電流狭窄部の非酸化領域の径は、5ミクロン以上、好ましくは8ミクロン以上のものを用いることで、VCSELの静電耐圧や信頼性が飛躍的に改善され、かつ非酸化領域の径のばらつきによる、素子間の特性ばらつきが低減される。
【選択図】 図12
Description
Bobby M. Hawkings et al., "Reliability of Various Size Oxide Aperture VCSELs", [online], Advanced Optical Components white paper,[平成17年12月9日検索]、インターネット<URL:http://www.adopco.com/publication/documents/ReliabiliutyofVariousSizeOxideApertureVCSELs.pdf>
12:下部多層反射膜 13:n側電極
14:下部スペーサ層 16:量子井戸活性層
18:上部スペーサ層 20:AlAs層
22:上部多層反射膜 24:コンタクト層
26:SiON 30:ポスト部
32:電流狭窄部 34:非酸化領域
36:SiNx 38:レジスト構造物
40:電極開口部
50a,50b,50c,50d,50e,:孔
51a〜51i:孔
60a,60b,60c,60d:発光スポット
61a〜61h:発光スポット 300:VCSELパッケージ
310:VCSELチップ 320:サブマウント
400:走査型露光装置 410:集光光学系
420:ハーフミラー 430:モニタ用フォトダイオード
440:ポリゴンミラー 450:回転モーター
460:fθレンズ 470:反射ミラー
480:感光体ドラム
Claims (10)
- 光源と、光源からの光を光情報記録媒体に集光する光学系と、該集光されたレーザ光を該光情報記録媒体上で走査する機構とを備えた光情報処理装置において、
前記光源は、レーザ光を出射する少なくとも1つの面発光型半導体レーザ素子を含み、前記少なくとも1つの面発光型半導体レーザ素子は、垂直共振器構造を構成する第1および第2のミラーの間に活性領域および電流狭窄部を含み、前記電流狭窄部には電流を注入するための約4ミクロンよりも大きい開口部が形成されている、光情報処理装置。 - 前記光源は、複数の面発光型半導体レーザ素子が配列されたアレイを含む、請求項1に記載の光情報処理装置。
- 前記電流狭窄部はAlを含む半導体層を含み、開口部は、Alを含む半導体層を選択的に酸化されてなる領域によって囲まれている、請求項1または2に記載の光情報処理装置。
- 面発光型半導体レーザ素子は、唯一つの横モードを含むシングルモードで動作される、請求項1ないし3いずれか1つに記載の光情報処理装置。
- 面発光型半導体レーザ素子は、高次シングルモードで動作される、請求項4に記載の光情報処理装置。
- 面発光型半導体レーザ素子は、しきい値近傍で動作される、請求項1ないし3いずれか1つに記載の光情報処理装置。
- 第1および第2のミラーは、Alを含むIII−V族化合物半導体層を含み、活性領域において発生されるレーザ光の波長は約850nmである、請求項1ないし6いずれか1つに記載の光情報処理装置。
- 前記光源は、少なくとも1つの面発光型半導体レーザを素子を実装するパッケージを含む、請求項1ないし7いずれか1つに記載の光情報処理装置。
- 前記パッケージは、面発光型半導体レーザ素子から出射された光を集光するレンズを含む、請求項8に記載の光情報処理装置。
- 光学系は、モータによって回転されるポリゴミミラーと、fθレンズを含み、光源からのレーザ光は、ポリゴンミラーで反射され、その反射光はfθレンズにより感光体ドラム面上を走査する、請求項1ないし9いずれか1つに記載の光情報処理装置。
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JP2005369086A JP2007173514A (ja) | 2005-12-22 | 2005-12-22 | 大口径表面発光型半導体レーザ素子を用いた光情報処理装置 |
US11/506,296 US20070147459A1 (en) | 2005-12-22 | 2006-08-18 | Optical data processing apparatus using vertical-cavity surface-emitting laser (VCSEL) device with large oxide-aperture |
EP06254523A EP1801940A1 (en) | 2005-12-22 | 2006-08-30 | Optical data processing apparatus using vertical-cavity surface-emitting laser (VCSEL) device with large oxide-aperture |
CNA2006101422025A CN1987674A (zh) | 2005-12-22 | 2006-10-09 | 用大氧化孔径垂直腔面发射激光器件的光学数据处理装置 |
KR1020060117740A KR100866059B1 (ko) | 2005-12-22 | 2006-11-27 | 대구경 표면 발광형 반도체 레이저 소자를 이용한 광정보처리 장치 |
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EP (1) | EP1801940A1 (ja) |
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KR (1) | KR100866059B1 (ja) |
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Cited By (2)
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JP2011066031A (ja) * | 2009-09-15 | 2011-03-31 | Ricoh Co Ltd | 光源装置、光走査装置及び画像形成装置 |
JP2012004227A (ja) * | 2010-06-15 | 2012-01-05 | Furukawa Electric Co Ltd:The | レーザ装置 |
Families Citing this family (10)
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JP4548345B2 (ja) * | 2006-01-12 | 2010-09-22 | セイコーエプソン株式会社 | 面発光型半導体レーザ |
KR101145219B1 (ko) * | 2007-09-17 | 2012-05-25 | 삼성전자주식회사 | 광출력장치 및 이를 채용한 광주사유니트 |
US7839913B2 (en) * | 2007-11-22 | 2010-11-23 | Canon Kabushiki Kaisha | Surface emitting laser, surface emitting laser array, and image forming apparatus including surface emitting laser |
JP5106487B2 (ja) * | 2008-07-31 | 2012-12-26 | キヤノン株式会社 | 面発光レーザの製造方法及び面発光レーザアレイの製造方法、該製造方法による面発光レーザアレイを備えている光学機器 |
JP2010192650A (ja) * | 2009-02-18 | 2010-09-02 | Fuji Xerox Co Ltd | 面発光型半導体レーザ、面発光型半導体レーザ装置、光送信装置および光情報処理装置 |
US8139277B2 (en) * | 2010-01-20 | 2012-03-20 | Palo Alto Research Center. Incorporated | Multiple-source multiple-beam polarized laser scanning system |
US9041015B2 (en) | 2013-03-12 | 2015-05-26 | Taiwan Semiconductor Manufacturing Company, Ltd. | Package structure and methods of forming same |
US8976833B2 (en) | 2013-03-12 | 2015-03-10 | Taiwan Semiconductor Manufacturing Company, Ltd. | Light coupling device and methods of forming same |
US10796627B2 (en) * | 2018-07-27 | 2020-10-06 | Shaoher Pan | Integrated laser arrays based devices |
US11888289B2 (en) * | 2020-03-30 | 2024-01-30 | Namuga, Co., Ltd. | Light source module allowing differential control according to distance to subject and method for controlling the same |
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- 2006-08-30 EP EP06254523A patent/EP1801940A1/en not_active Withdrawn
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Also Published As
Publication number | Publication date |
---|---|
CN1987674A (zh) | 2007-06-27 |
KR20070066864A (ko) | 2007-06-27 |
US20070147459A1 (en) | 2007-06-28 |
EP1801940A1 (en) | 2007-06-27 |
KR100866059B1 (ko) | 2008-10-31 |
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