JP2004247730A - 周波数変調垂直共振器型レーザ - Google Patents
周波数変調垂直共振器型レーザ Download PDFInfo
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- JP2004247730A JP2004247730A JP2004033094A JP2004033094A JP2004247730A JP 2004247730 A JP2004247730 A JP 2004247730A JP 2004033094 A JP2004033094 A JP 2004033094A JP 2004033094 A JP2004033094 A JP 2004033094A JP 2004247730 A JP2004247730 A JP 2004247730A
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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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/06203—Transistor-type lasers
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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]
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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
- H01S5/06—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium
- H01S5/062—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes
- H01S5/06209—Arrangements for controlling the laser output parameters, e.g. by operating on the active medium by varying the potential of the electrodes in single-section lasers
- H01S5/0622—Controlling the frequency of the radiation
-
- 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]
- H01S5/18358—Surface-emitting [SE] lasers, e.g. having both horizontal and vertical cavities having only vertical cavities, e.g. vertical cavity surface-emitting lasers [VCSEL] containing spacer layers to adjust the phase of the light wave in the cavity
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- Physics & Mathematics (AREA)
- Condensed Matter Physics & Semiconductors (AREA)
- General Physics & Mathematics (AREA)
- Electromagnetism (AREA)
- Optics & Photonics (AREA)
- Semiconductor Lasers (AREA)
Abstract
【解決手段】周波数変調垂直共振器型面発光レーザ(VCSEL)(100)を提供する。周波数変調型のVCSEL(100)は、活性領域(128)を含むミラー領域を含む。また、この周波数変調型のVCSELは、VCSELの特性を変化させるために使用される位相調整領域も含む。例えば、位相調整領域(124)における屈折率を変化させることにより、VCSELの波長が変化させられ、周波数変調される。
【選択図】図1
Description
光通信システムの帯域に対する要求は絶えず増加しているため、これらの種のデータ送信速度の達成には新規設計の検討ならびにメカニズムが要求される。現在、帯域を増やすには二つの主要な手法が存在する。一つの手法は、直接変調レーザを用いるものである。しかしながら、この第1の方法は概ね約10Gb/sのデータレートに制約される。
屈折率が多くの異なる方法で変更できることに、留意されたい。これらの方法の幾つかには、屈折率の電子光学的方法での変更、屈折率の磁気光学的方法での変更、自由キャリア(プラズマ光学効果)の追加を介する屈折率の変更、当事者には公知の他の方法での屈折率の変更、或いはそれらの組み合わせが含まれる。
位相調整領域を有するVCSEL構造の製造方法を、ここで説明する。活性領域を含むミラーを、形成する。位相調整領域は、VCSELの特性変更に用いるようにも形成してある。第2のミラーを形成することもできる。
Claims (10)
- 周波数変調垂直共振器型面発光レーザであって、
a)活性領域を含む第1のミラー領域と、
b)前記周波数変調垂直共振器型面発光レーザの特性の変更に用いる位相調整領域と、
を備える周波数変調垂直共振器型面発光レーザ。 - 前記周波数変調垂直共振器型面発光レーザは所定の波長で動作し、前記位相調整領域は屈折率を含み、前記位相調整領域の前記屈折率を変化させることで前記周波数変調垂直共振器型面発光レーザの波長を調整して該周波数変調垂直共振器型面発光レーザの周波数変調を得ることができる請求項1に記載の周波数変調垂直共振器型面発光レーザ。
- 前記屈折率は、電子光学的方法と磁気光学的方法と自由キャリア追加の媒介のうちの一つで変化させられる請求項1に記載の周波数変調垂直共振器型面発光レーザ。
- c)第2のミラー領域をさらに備え、前記位相調整領域が前記第1のミラー領域と前記第2のミラー領域との間に配設される請求項1に記載の周波数変調垂直共振器型面発光レーザ。
- 前記第1のミラー領域および前記第2のミラー領域が分布ブラッグ反射器である請求項4に記載の周波数変調垂直共振器型面発光レーザ。
- 前記活性領域の第1の部分が前記第1のミラー領域内に配設され、前記活性領域の前記第2の部分が前記第2のミラー領域内に配設される請求項4に記載の周波数変調垂直共振器型面発光レーザ。
- レーザ発振波長を含む周波数変調垂直共振器型面発光レーザであって、
a)第1のミラー領域と、
b)第2のミラー領域と、
c)前記周波数変調垂直共振器型面発光レーザのレーザ発振波長を変更する位相調整領域と、
を備える周波数変調垂直共振器型面発光レーザ。 - 前記位相調整領域が、前記第1のミラー領域と前記第2のミラー領域との間に配設される請求項7に記載の周波数変調垂直共振器型面発光レーザ。
- 前記第1のミラー領域および前記第2のミラー領域が分布ブラッグ反射器である請求項7に記載の周波数変調垂直共振器型面発光レーザ。
- d)前記第1のミラー領域に配設した活性領域をさらに備える請求項7に記載の周波数変調垂直共振器型面発光レーザ。
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US10/368,177 US7295589B2 (en) | 2003-02-15 | 2003-02-15 | Frequency modulated vertical cavity laser |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2006216681A (ja) * | 2005-02-02 | 2006-08-17 | Ricoh Co Ltd | 垂直共振器型面発光半導体レーザ装置および光送信モジュールおよび光伝送装置および光スイッチング方法 |
JP2006245473A (ja) * | 2005-03-07 | 2006-09-14 | Ricoh Co Ltd | 垂直共振器型面発光半導体レーザ装置および光スイッチング方法および光送信モジュールおよび光伝送装置 |
US7881357B2 (en) | 2005-02-02 | 2011-02-01 | Ricoh Company, Ltd. | Vertical cavity surface-emitting semiconductor laser device, optical transmission module, optical transmission device, and optical switching method |
US9077149B2 (en) | 2012-12-27 | 2015-07-07 | Empire Technology Development Llc | Modulation of vertical cavity laser (VCSEL) for enhanced range of multi-modal fiber communication |
WO2022019068A1 (ja) * | 2020-07-21 | 2022-01-27 | ソニーグループ株式会社 | 半導体レーザ素子 |
Families Citing this family (5)
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KR100576856B1 (ko) * | 2003-12-23 | 2006-05-10 | 삼성전기주식회사 | 질화물 반도체 발광소자 및 제조방법 |
DE102006006821A1 (de) * | 2006-02-14 | 2007-08-23 | Siemens Ag | Verfahren zur Begrenzung der Überschusskraft eines fremdkraftbetätigten Schließteils |
KR100850718B1 (ko) * | 2007-01-17 | 2008-08-06 | 삼성전자주식회사 | 스펙클 저감 레이저 |
US7508858B2 (en) * | 2007-04-30 | 2009-03-24 | The Research Foundation Of State University Of New York | Detuned duo-cavity laser-modulator device and method with detuning selected to minimize change in reflectivity |
US8687983B2 (en) | 2011-11-02 | 2014-04-01 | Hewlett-Packard Development Company, L.P. | Laser communication system |
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Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
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JP2006216681A (ja) * | 2005-02-02 | 2006-08-17 | Ricoh Co Ltd | 垂直共振器型面発光半導体レーザ装置および光送信モジュールおよび光伝送装置および光スイッチング方法 |
US7881357B2 (en) | 2005-02-02 | 2011-02-01 | Ricoh Company, Ltd. | Vertical cavity surface-emitting semiconductor laser device, optical transmission module, optical transmission device, and optical switching method |
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WO2022019068A1 (ja) * | 2020-07-21 | 2022-01-27 | ソニーグループ株式会社 | 半導体レーザ素子 |
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US20040160997A1 (en) | 2004-08-19 |
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