JP5854936B2 - 垂直共振器面発光レーザ、導波路、および結合器を備える装置、垂直共振器面発光レーザ、導波路、結合器、および反射器を備える装置、ならびに記憶媒体、記録ヘッド、およびアームを備える装置 - Google Patents
垂直共振器面発光レーザ、導波路、および結合器を備える装置、垂直共振器面発光レーザ、導波路、結合器、および反射器を備える装置、ならびに記憶媒体、記録ヘッド、およびアームを備える装置 Download PDFInfo
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- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/127—Structure or manufacture of heads, e.g. inductive
- G11B5/31—Structure or manufacture of heads, e.g. inductive using thin films
- G11B5/3109—Details
- G11B5/313—Disposition of layers
- G11B5/3133—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure
- G11B5/314—Disposition of layers including layers not usually being a part of the electromagnetic transducer structure and providing additional features, e.g. for improving heat radiation, reduction of power dissipation, adaptations for measurement or indication of gap depth or other properties of the structure where the layers are extra layers normally not provided in the transducing structure, e.g. optical layers
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/10—Structure or manufacture of housings or shields for heads
- G11B5/105—Mounting of head within housing or assembling of head and housing
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- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B5/48—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed
- G11B5/58—Disposition or mounting of heads or head supports relative to record carriers ; arrangements of heads, e.g. for scanning the record carrier to increase the relative speed with provision for moving the head for the purpose of maintaining alignment of the head relative to the record carrier during transducing operation, e.g. to compensate for surface irregularities of the latter or for track following
- G11B5/60—Fluid-dynamic spacing of heads from record-carriers
- G11B5/6005—Specially adapted for spacing from a rotating disc using a fluid cushion
- G11B5/6088—Optical waveguide in or on flying head
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/026—Monolithically integrated components, e.g. waveguides, monitoring photo-detectors, drivers
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/14—External cavity lasers
- H01S5/141—External cavity lasers using a wavelength selective device, e.g. a grating or etalon
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- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18305—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] with emission through the substrate, i.e. bottom emission
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- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18386—Details of the emission surface for influencing the near- or far-field, e.g. a grating on the surface
-
- G—PHYSICS
- G11—INFORMATION STORAGE
- G11B—INFORMATION STORAGE BASED ON RELATIVE MOVEMENT BETWEEN RECORD CARRIER AND TRANSDUCER
- G11B5/00—Recording by magnetisation or demagnetisation of a record carrier; Reproducing by magnetic means; Record carriers therefor
- G11B2005/0002—Special dispositions or recording techniques
- G11B2005/0005—Arrangements, methods or circuits
- G11B2005/0021—Thermally assisted recording using an auxiliary energy source for heating the recording layer locally to assist the magnetization reversal
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- H—ELECTRICITY
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0811—Construction or shape of optical resonators or components thereof comprising three or more reflectors incorporating a dispersive element, e.g. a prism for wavelength selection
- H01S3/0812—Construction or shape of optical resonators or components thereof comprising three or more reflectors incorporating a dispersive element, e.g. a prism for wavelength selection using a diffraction grating
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- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/081—Construction or shape of optical resonators or components thereof comprising three or more reflectors
- H01S3/0813—Configuration of resonator
- H01S3/0815—Configuration of resonator having 3 reflectors, e.g. V-shaped resonators
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- H—ELECTRICITY
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- H01S5/00—Semiconductor lasers
- H01S5/02—Structural details or components not essential to laser action
- H01S5/022—Mountings; Housings
- H01S5/0225—Out-coupling of light
- H01S5/02255—Out-coupling of light using beam deflecting elements
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/1028—Coupling to elements in the cavity, e.g. coupling to waveguides adjacent the active region, e.g. forward coupled [DFC] structures
- H01S5/1032—Coupling to elements comprising an optical axis that is not aligned with the optical axis of the active region
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18341—Intra-cavity contacts
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S5/00—Semiconductor lasers
- H01S5/10—Construction or shape of the optical resonator, e.g. extended or external cavity, coupled cavities, bent-guide, varying width, thickness or composition of the active region
- H01S5/18—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities
- H01S5/183—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL]
- H01S5/18361—Structure of the reflectors, e.g. hybrid mirrors
- H01S5/1838—Reflector bonded by wafer fusion or by an intermediate compound
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- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Optics & Photonics (AREA)
- Engineering & Computer Science (AREA)
- Manufacturing & Machinery (AREA)
- Recording Or Reproducing By Magnetic Means (AREA)
- Magnetic Heads (AREA)
- Optical Head (AREA)
Description
熱アシスト磁気記録(heat assisted magnetic recording)(HAMR)は概して、熱源によって引起こされる媒体の一時的な磁気的軟化中に、与えられた書込磁界が媒体の磁化をより容易に誘導することができるように、記録媒体を局所的に熱して媒体の保磁力を低下させるという概念を指す。厳しく制限された高出力レーザ光点を用いて記録媒体の一部分を熱し、熱せられた部分の保磁力を実質的に低下させる。次いで熱せられた部分は、熱せられた部分の磁化の方向を設定する磁界を受ける。このように、周囲温度における媒体の保磁力は、記録中の保磁力よりはるかに高くなる可能性があり、それにより、記録されたビットの安定性が、はるかに高い記録密度でかつはるかに小さなビットセルで可能となる。
[先行技術文献]
[特許文献]
[特許文献1]米国特許第5837561号明細書
[特許文献2]米国特許第6021146号明細書
[特許文献3]米国特許第6026111号明細書
[特許文献4]米国特許第6064783号明細書
[特許文献5]米国特許第6236773号明細書
[特許文献6]米国特許第6584135号明細書
[特許文献7]米国特許第6628695号明細書
[特許文献8]米国特許第6944112号明細書
[特許文献9]米国特許第6963530号明細書
[特許文献10]米国特許第6975661号明細書
[特許文献11]米国特許第7022539号明細書
[特許文献12]米国特許第7133230号明細書
[特許文献13]米国特許第7180927号明細書
[特許文献14]米国特許第7218660号明細書
[特許文献15]米国特許第7327667号明細書
[特許文献16]米国特許第7443898号明細書
[特許文献17]米国特許第7609480号明細書
[特許文献18]米国特許第7643248号明細書
[特許文献19]米国特許第7949218号明細書
[特許文献20]米国出願公開2007/0081427号明細書
[特許文献21]米国出願公開2007/0159720号明細書
[特許文献22]米国出願公開2009/0073858号明細書
[特許文献23]米国出願公開2010/0214685号明細書
一局面において、開示は、光を生成し、能動領域、能動領域の第1の側に隣接して位置決めされた第1の反射器、能動領域の第2の側に隣接して位置決めされた拡張共振器、および光の第1の部分を拡張共振器に反射しかつ光の第2の部分を透過する第2の反射器を有する拡張共振器垂直共振器面発光レーザと、拡張共振器垂直共振器面発光レーザに隣接して位置決めされた平面導波路と、拡張共振器垂直共振器面発光レーザからの光の第2の部分を導波路に結合するように構成された水平結合器と、を含む装置を提供する。
図1は、開示の局面に従って構成される記録ヘッドを利用することができるディスクドライブ10の形態のデータ記憶装置の図である。ディスクドライブ10は、ディスクドライブのさまざまな構成要素を内蔵するようにサイズ決めされかつ構成される筐体12を含む(この図では上部分が取り外され下部分が見えるようになっている)。ディスクドライブ10は、筐体内で少なくとも1つの磁気記録媒体16を回転させるためのスピンドルモータ14を含む。少なくとも1つのアーム18が筐体12に内蔵され、各々のアーム18は、記録ヘッドまたはスライダ22を有する第1の端20と、軸受26によって軸上に回動するように搭載される第2の端24とを有する。アクチュエータモータ28は、アーム18を回動させてディスク16の所望のトラック27の上に記録ヘッド22を位置決めするためにアームの第2の端24に位置する。アクチュエータモータ28は、この図では示されないが、当該技術分野で周知のコントローラによって調整される。
Claims (21)
- 装置であって、
光を生成し、能動領域、前記能動領域の第1の側に隣接して位置決めされた第1の反射器、前記能動領域の第2の側に隣接して位置決めされた拡張共振器、および光の第1の部分を前記拡張共振器に反射しかつ光の第2の部分を透過する第2の反射器を有する拡張共振器垂直共振器面発光レーザと、
前記拡張共振器垂直共振器面発光レーザに隣接して位置決めされた平面導波路と、
前記拡張共振器垂直共振器面発光レーザからの光の第2の部分を前記導波路に結合するように構成された水平結合器と、
ヒートシンクマウントまたはサブマウントと、を備え、
前記第2の反射器は前記ヒートシンクマウントまたは前記サブマウントに一体化されている、装置。 - 前記水平結合器は角のあるブレーズド回折格子を含む、請求項1に記載の装置。
- 前記拡張共振器は透明なスタンドオフを含む、請求項1または2に記載の装置。
- 前記拡張共振器は、前記透明なスタンドオフと前記第2の反射器との間に間隙を含む、請求項3に記載の装置。
- 前記間隙は透明材料で充填される、請求項4に記載の装置。
- 前記水平結合器上に光を合焦させるレンズを前記拡張共振器内にさらに備える、請求項1〜5のいずれか1項に記載の装置。
- 前記水平結合器は傾斜したミラーを含む、請求項6に記載の装置。
- 前記拡張共振器垂直共振器面発光レーザは、硬化可能な導電性接着剤を用いて前記導波路に搭載され、前記接着剤を硬化させる前に性能パラメータを最大化するように前記導波路と位置合せされる、請求項1〜7のいずれか1項に記載の装置。
- 装置であって、
光を生成し、能動領域、前記能動領域の第1の側に隣接して位置決めされた第1の反射器、および前記能動領域の第2の側に隣接して位置決めされた拡張共振器を有する拡張共振器垂直共振器面発光レーザと、
平面導波路と、
前記導波路に、かつ前記導波路から前記能動領域に向けて光を結合するように構成された水平結合器と、
前記導波路内に位置決めされ、光の第1の部分を前記水平結合器に向けて反射し、かつ光の第2の部分を透過する第2の反射器と、を備える、装置。 - 前記第2の反射器は分布型ブラッグ反射器を含む、請求項9に記載の装置。
- 前記水平結合器は角のあるブレーズド回折格子を含む、請求項9または10に記載の装置。
- 前記拡張共振器は透明なスタンドオフを含む、請求項9〜11のいずれか1項に記載の装置。
- 前記拡張共振器は、前記透明なスタンドオフと前記第2の反射器との間に間隙を含む、請求項12に記載の装置。
- 前記間隙は透明材料で充填される、請求項13に記載の装置。
- 前記拡張共振器の第1のバイアおよび第2のバイアを介して前記能動領域に電気的に接続される第1の電気接点および第2の電気接点をさらに備える、請求項9〜14のいずれか1項に記載の装置。
- 前記拡張共振器垂直共振器面発光レーザは、硬化可能な導電性接着剤を用いて前記導波路に搭載され、前記接着剤を硬化させる前に前記導波路と位置合せされる、請求項9〜15のいずれか1項に記載の装置。
- 装置であって、
記憶媒体と、
記録ヘッドと、
前記記録ヘッドを前記記憶媒体に隣接して位置決めするためのアームとを備え、
前記記録ヘッドは、光を生成し、能動領域、前記能動領域の第1の側に隣接して位置決めされた第1の反射器、前記能動領域の第2の側に隣接して位置決めされた拡張共振器、および光の第1の部分を前記拡張共振器に反射しかつ光の第2の部分を透過する第2の反射器を有する拡張共振器垂直共振器面発光レーザと、平面導波路と、光の第2の部分を前記導波路に結合するように構成された水平結合器と、ヒートシンクマウントまたはサブマウントとを含むトランスデューサアセンブリを含み、前記第2の反射器は前記ヒートシンクマウントまたは前記サブマウントに一体化されている、装置。 - 前記水平結合器は角のあるブレーズド回折格子を含む、請求項17に記載の装置。
- 前記第2の反射器は複数の層を含む、請求項17または18に記載の装置。
- 前記第2の反射器は分布型ブラッグ反射器を含む、請求項17〜19のいずれか1項に記載の装置。
- 前記装置は、熱アシスト磁気記録装置である、請求項1〜20のいずれか1項に記載の装置。
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US13/167,304 US8451695B2 (en) | 2011-06-23 | 2011-06-23 | Vertical cavity surface emitting laser with integrated mirror and waveguide |
US13/167,304 | 2011-06-23 |
Publications (3)
Publication Number | Publication Date |
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JP2013008440A JP2013008440A (ja) | 2013-01-10 |
JP2013008440A5 JP2013008440A5 (ja) | 2013-05-02 |
JP5854936B2 true JP5854936B2 (ja) | 2016-02-09 |
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-
2011
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-
2012
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US20120327754A1 (en) | 2012-12-27 |
US8451695B2 (en) | 2013-05-28 |
CN102842851A (zh) | 2012-12-26 |
CN102842851B (zh) | 2015-06-03 |
JP2013008440A (ja) | 2013-01-10 |
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