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1. 发明申请

US20050243884A1 Laser tuning by spectrally dependent spatial filtering 审中-公开
标题翻译：通过光谱依赖空间滤波进行激光调谐
公开(公告)号：US20050243884A1
公开(公告)日：2005-11-03
申请号：US11176059
申请日：2005-07-07
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman , Serguei Koulikov
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman , Serguei Koulikov
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/093
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A laser tuning mechanism which embodies “spectrally dependent spatial filtering” (SDSF) and contemplates two key elements of the tuning mechanism. The first element of the SDSF tuning mechanism is a spectrally dependent beam distortion (i.e. alteration of the amplitude and/or phase profile of the beam) provided by an SDSF tuning element in a laser cavity. The second element of the SDSF tuning mechanism is an intracavity spatial filter which makes the round trip cavity loss a sensitive function of both beam distortion and cavity alignment. Such a laser can be aligned so that a specific beam distortion, which is provided by the SDSF tuning element at a tunable wavelength, is required to obtain minimum round trip cavity loss, thereby providing tunable laser emission. A preferred embodiment of the SDSF tuning mechanism is an external cavity semiconductor laser having a zeroth order acousto-optic tuning element.
摘要翻译：激光调谐机制体现了“光谱依赖空间滤波”（SDSF），并考虑了调谐机制的两个关键要素。 SDSF调谐机构的第一要素是由激光腔中的SDSF调谐元件提供的频谱依赖的光束失真（即光束的振幅和/或相位分布的改变）。 SDSF调谐机构的第二个元素是腔内空间滤波器，其使得往返腔体损耗具有波束失真和腔体对准的敏感功能。这样的激光器可以对齐，使得由SDSF调谐元件提供的可调谐波长的特定光束失真是需要的，以获得最小的往返腔损耗，从而提供可调谐的激光发射。 SDSF调谐机构的优选实施例是具有零级声光调谐元件的外腔半导体激光器。

2. 发明申请

US20050175045A1 Laser tuning by spectrally dependent spatial filtering 失效
标题翻译：通过光谱依赖空间滤波进行激光调谐
公开(公告)号：US20050175045A1
公开(公告)日：2005-08-11
申请号：US11106000
申请日：2005-04-13
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris Rella , Bruce Richman
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the insertion of an acousto-optic tunable filter (AOTF) into the laser cavity such that the intra-cavity laser beam passes through the AOTF in zeroth order.
摘要翻译：基于频谱依赖的波束失真和激光腔内的空间滤波器的相互作用的可调激光和激光调谐方法。该激光器的一个实施例是外腔半导体激光器，其中通过将声光可调滤波器（AOTF）插入到激光腔中获得宽可调性，使得腔内激光束以零级顺序通过AOTF。

3. 发明授权

US06959024B2 Laser Tuning by spectrally dependent spatial filtering 有权
标题翻译：激光通过光谱依赖空间滤波进行调谐
公开(公告)号：US06959024B2
公开(公告)日：2005-10-25
申请号：US10308541
申请日：2002-12-02
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman , Serguei Koulikov
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman , Serguei Koulikov
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A laser tuning mechanism which embodies “spectrally dependent spatial filtering” (SDSF) and contemplates two key elements of the tuning mechanism. The first element of the SDSF tuning mechanism is a spectrally dependent beam distortion (i.e. alteration of the amplitude and/or phase profile of the beam) provided by an SDSF tuning element in a laser cavity. The second element of the SDSF tuning mechanism is an intracavity spatial filter which makes the round trip cavity loss a sensitive function of both beam distortion and cavity alignment. Such a laser can be aligned so that a specific beam distortion, which is provided by the SDSF tuning element at a tunable wavelength, is required to obtain minimum round trip cavity loss, thereby providing tunable laser emission. A preferred embodiment of the SDSF tuning mechanism is an external cavity semiconductor laser having a zeroth order acousto-optic tuning element.
摘要翻译：激光调谐机制体现了“光谱依赖空间滤波”（SDSF），并考虑了调谐机制的两个关键要素。 SDSF调谐机构的第一要素是由激光腔中的SDSF调谐元件提供的频谱依赖的光束失真（即光束的振幅和/或相位分布的改变）。 SDSF调谐机构的第二个元素是腔内空间滤波器，其使得往返腔体损耗具有波束失真和腔体对准的敏感功能。这样的激光器可以对齐，使得由SDSF调谐元件提供的可调谐波长的特定光束失真是需要的，以获得最小的往返腔损耗，从而提供可调谐的激光发射。 SDSF调谐机构的优选实施例是具有零级声光调谐元件的外腔半导体激光器。

4. 发明授权

US06970484B2 Laser tuning by spectrally dependent spatial filtering 失效
公开(公告)号：US06970484B2
公开(公告)日：2005-11-29
申请号：US11106000
申请日：2005-04-13
申请人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman
发明人： Barbara Paldus , Jinchun Xie , Robert Lodenkamper , David M. Adams , Eric Crosson , Alexander Katchanov , Grzegorz Pakulski , Chris W. Rella , Bruce A. Richman
IPC分类号： H01S5/065 , H01S3/106 , H01S5/10 , H01S5/14 , H01S3/10
CPC分类号： H01S5/141 , H01S3/1068 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A tunable laser and laser tuning method, based on the interaction of a spectrally dependent beam distortion and a spatial filter within a laser cavity. One embodiment of this laser is an external cavity semiconductor laser in which broad tunability is obtained by the insertion of an acousto-optic tunable filter (AOTF) into the laser cavity such that the intra-cavity laser beam passes through the AOTF in zeroth order.

5. 发明申请

US20060109873A1 External cavity laser having improved single mode operation 审中-公开
标题翻译：外腔激光器具有改进的单模操作
公开(公告)号：US20060109873A1
公开(公告)日：2006-05-25
申请号：US11226775
申请日：2005-09-13
申请人： Eric Crosson , Serguei Koulikov , Grzegorz Pakulski , Barbara Paldus , Chris Rella
发明人： Eric Crosson , Serguei Koulikov , Grzegorz Pakulski , Barbara Paldus , Chris Rella
IPC分类号： H01S3/098
CPC分类号： H01S5/141 , G01N21/39 , H01S5/06804 , H01S5/0683 , H01S5/0687
摘要： Stable single mode operation of an external cavity semiconductor laser is obtained by a laser control method that monitors at least one optical beam which is generated by reflection from a wavelength selective element within the laser cavity. The method of the present invention provides stable single mode operation and significantly decreases the mode hop rate, because the signal obtained by reflection from a wavelength selective element within the laser cavity provides a clear indication of an impending mode hop.
摘要翻译：通过激光控制方法获得外腔半导体激光器的稳定单模操作，所述激光控制方法监视由激光腔内的波长选择元件反射而产生的至少一个光束。本发明的方法提供稳定的单模操作并显着降低模式跳频，因为通过来自激光腔内的波长选择元件的反射获得的信号提供即将发生的模式跳跃的清楚指示。

6. 发明授权

US06792010B2 Laser with reduced parasitic etalon effects 失效
标题翻译：具有减少寄生标准具效应的激光
公开(公告)号：US06792010B2
公开(公告)日：2004-09-14
申请号：US10327576
申请日：2002-12-20
申请人： Serguei Koulikov , Grzegorz Pakulski , Barbara A. Paldus , Chris W. Rella , Jinchun Xie
发明人： Serguei Koulikov , Grzegorz Pakulski , Barbara A. Paldus , Chris W. Rella , Jinchun Xie
IPC分类号： H01S3098
CPC分类号： H01S5/141 , H01S3/08036 , H01S3/1068 , H01S5/1039
摘要： According to the present invention, laser performance is improved by appropriately matching the spectral periods of various etalons within the laser cavity. A first embodiment of the invention is a discretely tunable external cavity semiconductor laser where a grid fixing etalon is present in the laser cavity, the grid fixing etalon free spectral range (FSR) is a whole number multiple of the laser cavity FSR, and the grid fixing etalon FSR is a whole number multiple of the chip etalon FSR. A second embodiment of the invention is a fixed wavelength external cavity semiconductor laser where the chip etalon FSR is a whole number multiple of the laser cavity FSR, and a mode suppressing etalon is inserted into the laser cavity such that the mode suppressing etalon FSR is a whole number multiple of the chip etalon FSR. A third embodiment of the invention is a tunable external cavity semiconductor laser where the chip etalon FSR is a whole number multiple of the laser cavity FSR. A fourth embodiment of the invention is a fixed wavelength external cavity semiconductor laser where the chip etalon FSR is a whole number multiple of the laser cavity FSR.
摘要翻译：根据本发明，通过适当地匹配激光腔内的各种标准具的光谱周期来提高激光性能。本发明的第一实施例是离散可调谐的外腔半导体激光器，其中在激光腔中存在格栅固定标准具，格栅固定标准具自由光谱范围（FSR）是激光腔FSR的整数倍，网格固定标准具FSR是芯片标准具FSR的整数倍。本发明的第二实施例是一种固定波长的外腔半导体激光器，其中标准具FSR是激光腔FSR的整数倍，并且模式抑制标准具被插入到激光腔中，使得模式抑制标准具FSR为芯片标准具FSR的整数倍。本发明的第三实施例是可调谐的外腔半导体激光器，其中标准具FSR是激光腔FSR的整数倍。本发明的第四实施例是一种固定波长的外腔半导体激光器，其中标准具FSR是激光腔FSR的整数倍。

7. 发明授权

US5567659A Method of etching patterns in III-V material with accurate depth control 失效
标题翻译：在具有精确深度控制的III-V材料中蚀刻图案的方法
公开(公告)号：US5567659A
公开(公告)日：1996-10-22
申请号：US450839
申请日：1995-05-25
申请人： Grzegorz Pakulski , Cornelis Blaauw , Agnes Margittai , Ronald Moore
发明人： Grzegorz Pakulski , Cornelis Blaauw , Agnes Margittai , Ronald Moore
IPC分类号： H01L21/306 , H01L21/302
CPC分类号： H01L21/30612
摘要： A method of accurately controlling the depth of etched gratings in uniform or layered quaternary III-V material. A native oxide is selectively grown on the area of the quaternary to be patterned and this native oxide is subsequently removed to engrave the surface. Periodic repetition of the oxide growth/removal steps results in gratings of the desired depths.
摘要翻译：一种准确控制均匀或分层的季III-V材料中蚀刻光栅的深度的方法。天然氧化物选择性地生长在待图案化的四元体的区域上，随后去除该天然氧化物以雕刻表面。氧化物生长/去除步骤的周期性重复导致期望深度的光栅。

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