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1.发明申请Apparatus and method for providing a single-mode grating-outcoupled surface emitting laser with detuned second-order outcoupler grating 失效用于提供具有失谐二阶外耦合光栅的单模光栅耦合表面发射激光器的装置和方法公开(公告)号：US20060140237A1
公开(公告)日：2006-06-29
申请号：US11021535
申请日：2004-12-23
申请人： Nuditha Amarasinghe , Taha Masood , Steven Patterson , Gary Evans
发明人： Nuditha Amarasinghe , Taha Masood , Steven Patterson , Gary Evans
IPC分类号： H01S5/00
CPC分类号： H01S5/125 , H01S5/1221 , H01S5/18
摘要： An improved grating-outcoupled surface-emitting semiconductor laser architecture is provided. A second-order grating is placed between two distributed Bragg reflector gratings. The period of the second order grating is positively or negatively detuned from the distributed Bragg reflector selected optical wavelength at which the laser operates. Detuning of the second-order grating towards shorter or longer wavelengths allows kink-free, linear LI curves light output versus forward current) for grating-outcoupled surface-emitting lasers. Due to the detuning of the outcoupler grating, the outcoupled radiation emits two beams that deviate slightly from the normal axis. A design point may then be chosen where the power coutcoupled by symmetric and antisymmetric modes cross and where the outcoupled power is independent of the phase variation.
摘要翻译： 提供了一种改进的光栅耦合表面发射半导体激光器结构。 二阶光栅放置在两个分布布拉格反射器光栅之间。 第二级光栅的周期与激光器所在的分布式布拉格反射体所选择的光波长正向或负向失谐。 对于光栅输出耦合的表面发射激光器，二阶光栅向更短或更长波长的去抖动允许无扭结的线性LI曲线光输出对正向电流）。 由于外耦合光栅的失谐，输出耦合的辐射发射出两个与正常轴线稍微偏离的光束。 然后可以选择设计点，其中功率由对称和反对称模式耦合的功率交叉，并且输出耦合功率独立于相位变化。
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2.发明申请Integrated high speed modulator for grating-outcoupled surface emitting lasers 失效用于光栅耦合表面发射激光器的集成高速调制器公开(公告)号：US20060176915A1
公开(公告)日：2006-08-10
申请号：US11055128
申请日：2005-02-08
IPC分类号： H01S3/10
CPC分类号： H01S5/06256 , H01S5/187
摘要： A single-mode grating-outcoupled surface emitting (GSE) semiconductor laser architecture is provided. This architecture enables high speed modulation of the GSE laser, which is accomplished by only varying the relative phase of counter propagating waves in the outcoupler grating region of the lasing cavity.
摘要翻译： 提供了单模光栅耦合表面发射（GSE）半导体激光器结构。 该架构能够实现GSE激光器的高速调制，GSE激光器仅通过改变激光腔的输出耦合器光栅区域中的反向传播波的相对相位来实现。
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3.发明授权Integrated high speed modulator for grating-outcoupled surface emitting lasers 失效用于光栅耦合表面发射激光器的集成高速调制器公开(公告)号：US07313158B2
公开(公告)日：2007-12-25
申请号：US11055128
申请日：2005-02-08
申请人： Gary Alan Evans , Taha Masood , Steven Gregory Patterson , Nuditha Vibhavie Amarasinghe , Jerome K. Butler
发明人： Gary Alan Evans , Taha Masood , Steven Gregory Patterson , Nuditha Vibhavie Amarasinghe , Jerome K. Butler
CPC分类号： H01S5/06256 , H01S5/187
摘要： A single-mode grating-outcoupled surface emitting (GSE) semiconductor laser architecture is provided. This architecture enables high speed modulation of the GSE laser, which is accomplished by only varying the relative phase of counter propagating waves in the outcoupler grating region of the lasing cavity.
摘要翻译： 提供了单模光栅耦合表面发射（GSE）半导体激光器结构。 该架构能够实现GSE激光器的高速调制，GSE激光器仅通过改变激光腔的输出耦合器光栅区域中的反向传播波的相对相位来实现。
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4.发明授权Apparatus and method for providing a single-mode grating-outcoupled surface emitting laser with detuned second-order outcoupler grating 失效用于提供具有失谐二阶外耦合光栅的单模光栅耦合表面发射激光器的装置和方法公开(公告)号：US07313159B2
公开(公告)日：2007-12-25
申请号：US11021535
申请日：2004-12-23
CPC分类号： H01S5/125 , H01S5/1221 , H01S5/18
摘要： An improved grating-outcoupled surface-emitting semiconductor laser architecture is provided. A second-order grating is placed between two distributed Bragg reflector gratings. The period of the second order grating is positively or negatively detuned from the distributed Bragg reflector selected optical wavelength at which the laser operates. Detuning of the second-order grating towards shorter or longer wavelengths allows kink-free, linear LI curves light output versus forward current) for grating-outcoupled surface-emitting lasers. Due to the detuning of the outcoupler grating, the outcoupled radiation emits two beams that deviate slightly from the normal axis. A design point may then be chosen where the power outcoupled by symmetric and antisymmetric modes cross and where the outcoupled power is independent of the phase variation.
摘要翻译： 提供了一种改进的光栅耦合表面发射半导体激光器结构。 二阶光栅放置在两个分布布拉格反射器光栅之间。 第二级光栅的周期与激光器所在的分布式布拉格反射体所选择的光波长正向或负向失谐。 对于光栅输出耦合的表面发射激光器，二阶光栅向更短或更长波长的去抖动允许无扭结的线性LI曲线光输出对正向电流）。 由于外耦合光栅的失谐，输出耦合的辐射发射出两个与正常轴线稍微偏离的光束。 然后可以选择设计点，其中通过对称和反对称模式交叠的功率相交，并且输出耦合功率独立于相位变化。
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公开(公告)号：US08070298B2
公开(公告)日：2011-12-06
申请号：US13100158
申请日：2011-05-03
申请人： Taha Masood
发明人： Taha Masood
CPC分类号： H04N9/3194 , G03B21/008 , H01S5/0652 , H01S5/0656 , H01S5/4093 , H04N9/3129
摘要： An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.
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公开(公告)号：US08659813B2
公开(公告)日：2014-02-25
申请号：US13417739
申请日：2012-03-12
申请人： Wyatt O. Davis , Taha Masood
发明人： Wyatt O. Davis , Taha Masood
CPC分类号： G02F1/29 , G02B1/005 , G02F2001/291
摘要： Briefly, in accordance with one or more embodiments, a beam scanner may comprise a nanophotonics chip to provide a scanned output beam. The nanophotonics chip comprises a substrate, a grating in-coupler formed in the substrate to couple a beam from a light source into the substrate, a modulator to modulate the beam, and a photonic crystal (PC) superprism to provide a scanned output beam that is scanned in response to the modulated beam.
摘要翻译： 简而言之，根据一个或多个实施例，光束扫描器可以包括纳米光子芯片以提供扫描的输出光束。 纳米光子学芯片包括衬底，形成在衬底中的光栅耦合器，用于将来自光源的光束耦合到衬底中，用于调制光束的调制器，以及提供扫描的输出光束的光子晶体（PC） 被响应于被调制的光束被扫描。
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公开(公告)号：US20130235441A1
公开(公告)日：2013-09-12
申请号：US13417739
申请日：2012-03-12
申请人： Wyatt O. Davis , Taha Masood
发明人： Wyatt O. Davis , Taha Masood
CPC分类号： G02F1/29 , G02B1/005 , G02F2001/291
摘要： Briefly, in accordance with one or more embodiments, a beam scanner may comprise a nanophotonics chip to provide a scanned output beam. The nanophotonics chip comprises a substrate, a grating in-coupler formed in the substrate to couple a beam from a light source into the substrate, a modulator to modulate the beam, and a photonic crystal (PC) superprism to provide a scanned output beam that is scanned in response to the modulated beam.
摘要翻译： 简而言之，根据一个或多个实施例，光束扫描器可以包括纳米光子芯片以提供扫描的输出光束。 纳米光子学芯片包括衬底，形成在衬底中的光栅耦合器，用于将来自光源的光束耦合到衬底中，用于调制光束的调制器，以及提供扫描的输出光束的光子晶体（PC） 被响应于被调制的光束被扫描。
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8.发明申请Laser Display System with Optical Feedback Configured to Reduce Speckle Artifacts 有权配有光学反馈的激光显示系统，以减少斑点伪像公开(公告)号：US20110205504A1
公开(公告)日：2011-08-25
申请号：US13100158
申请日：2011-05-03
申请人： Taha Masood
发明人： Taha Masood
IPC分类号： G03B21/14
CPC分类号： H04N9/3194 , G03B21/008 , H01S5/0652 , H01S5/0656 , H01S5/4093 , H04N9/3129
摘要： An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.
摘要翻译： 成像系统（200）包括被配置为产生多个光束（204）的多个激光源（201）。 一个或多个光学对准装置（220）将光束（204）定向成准直光束（205）。 光调制器（203）调制准直光束（205），使得图像（206）可以呈现在显示表面（207）上。 使用导致激光源（201）在相干折叠状态下操作的光学反馈装置（221）来减少斑点。 光学反馈装置（221）的示例包括部分反射镜和分束镜组合。
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9.发明授权Laser display system with optical feedback configured to reduce speckle artifacts 有权配有光学反馈的激光显示系统，可减少斑点伪影公开(公告)号：US07993012B2
公开(公告)日：2011-08-09
申请号：US12241597
申请日：2008-09-30
申请人： Taha Masood
发明人： Taha Masood
CPC分类号： H04N9/3194 , G03B21/008 , H01S5/0652 , H01S5/0656 , H01S5/4093 , H04N9/3129
摘要： An imaging system (200) includes a plurality of laser sources (201) configured to produce a plurality of light beams (204). One or more optical alignment devices (220) orient the light beams (204) into a collimated light beam (205). A light modulator (203) modulates the collimated light beam (205) such that images (206) can be presented on a display surface (207). Speckle is reduced with an optical feedback device (221) that causes the laser sources (201) to operate in a coherence collapsed state. Examples of optical feedback devices (221) include partially reflective mirrors and beam splitter-mirror combinations.
摘要翻译： 成像系统（200）包括被配置为产生多个光束（204）的多个激光源（201）。 一个或多个光学对准装置（220）将光束（204）定向成准直光束（205）。 光调制器（203）调制准直光束（205），使得图像（206）可以呈现在显示表面（207）上。 使用导致激光源（201）在相干折叠状态下操作的光学反馈装置（221）来减少斑点。 光学反馈装置（221）的示例包括部分反射镜和分束镜组合。
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公开(公告)号：US20100150190A1
公开(公告)日：2010-06-17
申请号：US12335161
申请日：2008-12-15
申请人： Taha Masood , Joel D. Hopkins
发明人： Taha Masood , Joel D. Hopkins
IPC分类号： H01S5/06
CPC分类号： H01S5/06256 , H01S5/0092 , H01S5/0612 , H04N9/3129 , H04N9/3155 , H04N9/3161
摘要： The wavelength of light output from a semiconductor laser varies over time as various parameters vary. Current in a phase section of the semiconductor laser is modified to counteract the wavelength variations. The current in the phase section may be modified in response to video data on a pixel-by-pixel basis or longer.
摘要翻译： 随着各种参数的变化，半导体激光器输出的光的波长随时间而变化。 修改半导体激光器的相位部分中的电流以抵消波长变化。 响应于逐个像素或更长的视频数据，可以修改相位部分中的电流。
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