专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明授权

US07339718B1 Generation of terahertz radiation in orientation-patterned semiconductors 有权
标题翻译：在定向图案化的半导体中产生太赫兹辐射
公开(公告)号：US07339718B1
公开(公告)日：2008-03-04
申请号：US11357722
申请日：2006-02-17
申请人： Konstantin L. Vodopyanov , Yun-Shik Lee , Vladimir G. Kozlov , Martin M. Fejer
发明人： Konstantin L. Vodopyanov , Yun-Shik Lee , Vladimir G. Kozlov , Martin M. Fejer
IPC分类号： G02F1/35 , G02F2/02
CPC分类号： G02F1/39 , G02F1/3558 , G02F2203/13
摘要： A method for generating THz radiation comprises illuminating a semiconductor crystal with an optical pulse train. The semiconductor crystal comprises alternating parallel crystal domains, with each domain having a crystal orientation inverted with respect to adjacent domains. The optical pulse train propagates substantially perpendicularly relative to domain boundaries in the semiconductor crystal. The THz radiation is generated from the optical pulse train by optical down-conversion mediated by the semiconductor crystal. Optical path lengths through the crystal domains at least in part determine a frequency of the generated THz radiation. THz generation efficiency may be enhanced by placing the semiconductor crystal within an external resonant cavity, by placing the semiconductor crystal within a laser cavity, or by placing the semiconductor crystal within an OPO cavity. The semiconductor crystal may comprise zinc-blende, III-V, or II-VI semiconductor.
摘要翻译：用于产生太赫兹辐射的方法包括用光脉冲串照射半导体晶体。半导体晶体包括交替的平行晶体畴，每个畴具有相对于相邻畴反转的晶体取向。光脉冲串相对于半导体晶体中的畴边界基本垂直地传播。通过由半导体晶体介导的光学下变频从光脉冲串产生太赫兹辐射。通过晶体域的光路长度至少部分地确定所产生的太赫兹辐射的频率。通过将半导体晶体放置在激光腔内，或通过将半导体晶体放置在OPO腔内，可以将半导体晶体放置在外部谐振腔内来提高太赫兹发生效率。半导体晶体可以包括闪锌矿，III-V或II-VI半导体。

2. 发明授权

US06930821B2 Nonlinear frequency mixer using quasi-phase-matching gratings having beam-modifying patterns 失效
标题翻译：使用具有光束修改图案的准相位匹配光栅的非线性混频器
公开(公告)号：US06930821B2
公开(公告)日：2005-08-16
申请号：US10440490
申请日：2003-05-16
申请人： Jonathan R. Kurz , Martin M. Fejer
发明人： Jonathan R. Kurz , Martin M. Fejer
IPC分类号： G02F1/37 , G02F1/377 , G02F1/39
CPC分类号： G02F1/3775 , G02F2001/372
摘要： A method and a nonlinear frequency mixer employing the method to generate at least one output light from at least one input light with the aid of a quasi-phase-matching (QPM) grating for quasi-phase-matching the input and output light involved in a nonlinear frequency mixing operation such as three-wave mixing, four-wave mixing or other nonlinear operation mediated by a susceptibility of the nonlinear optical material. The QPM grating has a beam-modifying pattern with features for wave front shaping. More specifically, the features shape the wave fronts of the output light by diffraction or phase front shaping to thereby modify its propagation. This modification of propagation can be used to steer, focus, defocusing, split and/or collimate the output light. The features themselves can have various geometric shapes and sizes, even on the order of the wavelength of the output light, and they can include domains exhibiting a nonlinear optical susceptibility χ, such as the second-order susceptibility χ(2), domain edges, and/or spacings between such domains.
摘要翻译：一种采用该方法的方法和非线性频率混合器，用于借助于准相位匹配（QPM）光栅从至少一个输入光产生至少一个输出光，以准相相匹配参与的输入和输出光由非线性光学材料的磁化率介导的三波混频，四波混频或其他非线性运算的非线性频率混合操作。 QPM光栅具有波束修正图案，具有用于波前成形的特征。更具体地，这些特征通过衍射或相位前置成形来形成输出光的波前，从而改变其传播。传播的这种修改可用于引导，聚焦，散焦，分离和/或校准输出光。特征本身可以具有各种几何形状和尺寸，即使在输出光的波长的数量级上，它们也可以包括显示出非线性光学敏感性chi的畴，例如二次磁化率chi（2） / SUP>，域边缘和/或这些域之间的间隔。

3. 发明授权

US06906855B2 Method of amplifying optical signals using doped materials with extremely broad bandwidths 失效
标题翻译：使用具有极宽带宽的掺杂材料放大光信号的方法
公开(公告)号：US06906855B2
公开(公告)日：2005-06-14
申请号：US10885424
申请日：2004-07-06
申请人： Yannick G. Feillens , Michel J. F. Digonnet , Martin M. Fejer
发明人： Yannick G. Feillens , Michel J. F. Digonnet , Martin M. Fejer
IPC分类号： H01S3/067 , H01S3/094 , H01S3/16 , H01S3/00
CPC分类号： H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/1643
摘要： In a method of amplifying optical input signals over a wide bandwidth, the optical input signals are applied to an optical waveguide made from a rare-earth-doped amorphous material (e.g., erbium-doped SrY4(SiO4)3O material). The optical input signals include optical signals having wavelengths over a range of approximately 125 nanometers. Pump light is applied to the optical waveguide to cause the waveguide to provide optical gain to the optical input signals. The optical gain causes the optical signals to be amplified within the waveguide to provide amplified optical signals over approximately a 125-nanometer range, including, in particular, optical signals having wavelengths at one end of the range and optical signals having wavelengths at a second end of the range.
摘要翻译：在宽带宽放大光输入信号的方法中，光输入信号被施加到由稀土掺杂的非晶材料制成的光波导（例如掺杂铒的SrY 4（SiO 3 O 3）O 3）。光输入信号包括波长在大约125纳米范围内的光信号。泵浦光被施加到光波导以使波导对光输入信号提供光增益。光学增益使得光信号在波导内被放大，以在大约125纳米范围内提供放大的光信号，特别是包括在该范围的一端具有波长的光信号和在第二端具有波长的光信号的范围。

4. 发明授权

US5800767A Electric field domain patterning 失效
标题翻译：电场域图案化
公开(公告)号：US5800767A
公开(公告)日：1998-09-01
申请号：US307867
申请日：1994-09-16
申请人： Robert L. Byer , Martin M. Fejer , Gregory D. Miller , Lawrence E. Myers
发明人： Robert L. Byer , Martin M. Fejer , Gregory D. Miller , Lawrence E. Myers
IPC分类号： G02F1/355 , B29C71/00
CPC分类号： G02F1/3558
摘要： A method of domain patterning a body of ferroelectric material. The method includes the steps of adhering spaced conducting strips to a surface of said body; covering portions of said surface of said body between said strips with material which is insulative relative to electric current produced when an electric field configuration is created in said body and which controls the formation of fringe electric field components in said material; and applying potentials simultaneously to said conducting strips and to a surface of said insulative material to create an electric field configuration in said body whereby said strips define said electric field configuration within said body and wherein said insulating material between said strips defines a potential within said body which is generally the same as the potential applied to said conducting strips.
摘要翻译：铁电材料体的域图案化方法。该方法包括将间隔开的导电条粘合到所述主体的表面上的步骤; 在所述条带之间覆盖所述主体的所述表面的部分，所述材料相对于在所述主体中产生电场结构而产生的电流是绝缘的，并且控制所述材料中的边缘电场分量的形成; 以及将电位同时施加到所述导电条和所述绝缘材料的表面以在所述主体中产生电场结构，由此所述条限定所述主体内的所述电场结构，并且其中所述条之间的所述绝缘材料限定所述主体内的电位其通常与施加到所述导电条上的电位相同。

5. 发明授权

US5095518A Integrated optical waveguide utilizing zinc oxide diffused into congruent and magnesium oxide doped lithium niobate crystals 失效
标题翻译：使用氧化锌的集成光波导扩散到掺杂铌酸锂的铌酸锂晶体中
公开(公告)号：US5095518A
公开(公告)日：1992-03-10
申请号：US566153
申请日：1990-08-10
申请人： Whu-ming Young , Martin M. Fejer , Robert S. Feigelson , Michel J. F. Digonnet
发明人： Whu-ming Young , Martin M. Fejer , Robert S. Feigelson , Michel J. F. Digonnet
IPC分类号： G02B6/134
CPC分类号： G02B6/1342
摘要： An integrated optical waveguide is constructed from a lithium niobate (LiNbO.sub.3) crystal substrate. In preferred embodiments, a diffused layer is formed proximate to one surface of the substrate by sputtering a thin layer of a zinc-related oxide (e.g., ZnO, ZnLiNbO.sub.4, or the like) onto the surface and then annealing the substrate. The resulting concentration of zinc in the diffused layer forms a waveguide having desirable optical propagation characteristics. The substrate is preferably congruent lithium niobate. In particularly preferred embodiments, the substrate is magnesium oxide (MgO) doped lithium niobate.
摘要翻译：集成光波导由铌酸锂（LiNbO 3）晶体基板构成。在优选实施例中，通过将锌相关氧化物（例如ZnO，ZnLiNbO 4等）的薄层溅射到表面上，然后对衬底进行退火，在衬底的一个表面附近形成扩散层。所得到的扩散层中锌的浓度形成具有理想的光传播特性的波导。所述底物优选是一致的铌酸锂。在特别优选的实施方式中，衬底是掺杂了氧化镁（MgO）的铌酸锂。

6. 发明申请

US20120162748A1 COMPACT, HIGH BRIGHTNESS LIGHT SOURCES FOR THE MID AND FAR IR 审中-公开
标题翻译：紧凑，高亮度的中等和远红外光源
公开(公告)号：US20120162748A1
公开(公告)日：2012-06-28
申请号：US13325843
申请日：2011-12-14
申请人： Martin FERMANN , Jie JIANG , Christopher PHILLIPS , Martin M. FEJER
发明人： Martin FERMANN , Jie JIANG , Christopher PHILLIPS , Martin M. FEJER
IPC分类号： G02F1/365 , G02F1/355 , G02F1/39 , G02F1/35
CPC分类号： G02F1/353 , G02F2001/3548 , G02F2201/02 , G02F2201/16 , G02F2203/11 , H01S3/0092 , H01S3/067 , H01S3/06754 , H01S3/1608 , H01S3/1616
摘要： Compact laser systems are disclosed which include ultrafast laser sources in combination with nonlinear crystals or waveguides. In some implementations fiber based mid-IR sources producing very short pulses and/or mid-IR sources based on a mode locked fiber lasers are utilized. Some embodiments may include an infrared source with an amplifier system comprising, in combination, a Tm fiber amplifier and an Er fiber amplifier. A difference frequency generator receives outputs from the Er and/or Tm amplifier system, and generates an output comprising a difference frequency. Exemplary applications of the compact, high brightness mid-IR light sources include medical applications, spectroscopy, ranging, sensing and metrology.
摘要翻译：公开了紧凑的激光系统，其包括与非线性晶体或波导组合的超快激光源。在一些实现中，利用基于模式锁定光纤激光器产生非常短脉冲和/或中红外光源的基于光纤的中红外光源。一些实施例可以包括具有放大器系统的红外源，该放大器系统组合包括Tm光纤放大器和Er光纤放大器。差分频率发生器接收来自Er和/或Tm放大器系统的输出，并产生包括差频的输出。紧凑的高亮度中红外光源的示例性应用包括医疗应用，光谱学，测距，感测和计量学。

7. 发明授权

US06781750B2 Method of amplifying optical signals using doped materials with extremely broad bandwidths 有权
标题翻译：使用具有极宽带宽的掺杂材料放大光信号的方法
公开(公告)号：US06781750B2
公开(公告)日：2004-08-24
申请号：US10282139
申请日：2002-10-25
申请人： Yannick G. Feillens , Michel J. F. Digonnet , Martin M. Fejer
发明人： Yannick G. Feillens , Michel J. F. Digonnet , Martin M. Fejer
IPC分类号： H01S317
CPC分类号： H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/1643
摘要： In a method of amplifying optical input signals over a wide bandwidth, the optical input signals are applied to an optical waveguide made from a rare-earth-doped amorphous material (e.g., erbium-doped yttrium aluminum oxide material). The optical input signals include optical signals having wavelengths over a range of at least 80 nanometers, and, preferably, over a range of at least 160 nanometers. Pump light is applied to the optical waveguide to cause the waveguide to provide optical gain to the optical input signals. The optical gain causes the optical signals to be amplified within the waveguide to provide amplified optical signals over the extended 80-160-nanometer range, including, in particular, optical signals having wavelengths at one end of the range and optical signals having wavelengths at a second end or the range.
摘要翻译：在宽带宽放大光输入信号的方法中，光输入信号被施加到由稀土掺杂非晶材料（例如掺铒氧化铝材料）制成的光波导。光输入信号包括具有至少80纳米范围内的波长的光信号，并且优选在至少160纳米的范围内。泵浦光被施加到光波导以使波导对光输入信号提供光增益。光学增益使得光信号在波导内被放大，以在扩展的80-160纳米范围内提供放大的光信号，特别是包括在该范围的一端具有波长的光信号，第二端或范围。

8. 发明授权

US06721093B2 Method of amplifying optical signals using doped materials with extremely broad bandwidths 有权
公开(公告)号：US06721093B2
公开(公告)日：2004-04-13
申请号：US10282155
申请日：2002-10-25
申请人： Yannick G. Feillens , Michel J. F. Digonnet , Martin M. Fejer
发明人： Yannick G. Feillens , Michel J. F. Digonnet , Martin M. Fejer
IPC分类号： H01S317
CPC分类号： H01S3/06754 , H01S3/06766 , H01S3/0677 , H01S3/094011 , H01S3/094096 , H01S3/1608 , H01S3/1643
摘要： In a method of amplifying optical input signals over a wide bandwidth, the optical input signals are applied to an optical waveguide made from a rare-earth-doped amorphous material (e.g., erbium-doped yttrium aluminum oxide material). The optical input signals include optical signals having wavelengths over a range of at least 80 nanometers, and, preferably, over a range of at least 160 nanometers. Pump light is applied to the optical waveguide to cause the waveguide to provide optical gain to the optical input signals. The optical gain causes the optical signals to be amplified within the waveguide to provide amplified optical signals over the extended 80-160-nanometer range, including, in particular, optical signals having wavelengths at one end of the range and optical signals having wavelengths at a second end or the range.

9. 发明授权

US06469825B1 Method of amplifying optical signals using erbium-doped materials with extremely broad bandwidths 有权
标题翻译：使用具有极宽带宽的铒掺杂材料放大光信号的方法
公开(公告)号：US06469825B1
公开(公告)日：2002-10-22
申请号：US09628731
申请日：2000-07-28
申请人： Michel J. F. Digonnet , Hiroshi Noguchi , Martin M. Fejer
发明人： Michel J. F. Digonnet , Hiroshi Noguchi , Martin M. Fejer
IPC分类号： H01S300
CPC分类号： C03C3/062 , C03C3/125 , C03C13/046 , C03C13/048 , H01S3/0637 , H01S3/06716 , H01S3/06754 , H01S3/1608 , H01S3/1618 , H01S3/1638 , H01S3/1643
摘要： In a method of amplifying optical input signals over a wide bandwidth, the optical input signals are applied to an optical waveguide made from a rare-earth-doped amorphous yttrium aluminum oxide material (e.g., erbium-doped yttrium aluminum oxide material). The optical input signals include optical signals having wavelengths shorter than 1,520 nanometers and optical signals having wavelengths longer than 1,610 nanometers. Preferably, the wavelengths range from as short as approximately 1,480 nanometers to as long as approximately 1,650 nanometers. Pump light is applied to the optical waveguide to cause the waveguide to provide optical gain to the optical input signals. The optical gain causes the optical signals to be amplified within the waveguide to provide amplified optical signals over the extended range from approximately 1,480 nanometers to approximately 1,650 nanometers, including, in particular, optical signals having wavelengths shorter than 1,520 nanometers and optical signals having wavelengths longer than 1,610 nanometers. Alternatively, the wavelengths of the optical input signals may be in the range from approximately 1,480 nanometers to approximately 1,565 nanometers. As a further alternative, the wavelengths of the optical input signals may be in the range from approximately 1,565 nanometers to approximately 1,650 nanometers.
摘要翻译：在宽带宽放大光输入信号的方法中，光输入信号被施加到由稀土掺杂的无定形钇铝氧化物材料（例如掺铒氧化铝材料）制成的光波导。光输入信号包括波长短于1520纳米的光信号和波长长于1610纳米的光信号。优选地，波长范围从约1,480纳米到长达约1,650纳米。泵浦光被施加到光波导以使波导对光输入信号提供光增益。光学增益使得光信号在波导内被放大，以在从大约1,480纳米到大约1,650纳米的扩展范围内提供放大的光信号，包括特别是具有短于1,520纳米的波长的光信号和具有波长更长的光信号比1,610纳米。或者，光输入信号的波长可以在从大约1,480纳米到大约1,565纳米的范围内。作为另一替代方案，光输入信号的波长可以在大约1565纳米到大约1,650纳米的范围内。

10. 发明授权

US5838702A Method of electrically controlling regions of ferroelectric polarization domains in solid state bodies 失效
标题翻译：电气控制固体物质中铁电极化畴区域的方法
公开(公告)号：US5838702A
公开(公告)日：1998-11-17
申请号：US241788
申请日：1994-05-12
申请人： Robert L. Byer , Martin M. Fejer , Eric J. Lim
发明人： Robert L. Byer , Martin M. Fejer , Eric J. Lim
IPC分类号： G02F1/35 , G02F1/355 , G02F1/37 , G02F1/377 , H01S3/06 , H01S3/094 , H01S3/109 , H01S3/10
CPC分类号： G02F1/3558 , G02F1/3775 , G02F1/37 , G02F1/377 , G02F2001/3548 , G02F2202/20
摘要： Chemical and electrical poling is described, as well as an improved optical converter having a solid state body which employs the same.
摘要翻译：描述了化学和电极化，以及具有采用其的固态体的改进的光学转换器。

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式