-
公开(公告)号：US07295742B2
公开(公告)日：2007-11-13
申请号：US10448608
申请日：2003-05-29
IPC分类号： G02B6/10
CPC分类号： G02F1/377 , G02B6/13 , G02B6/136 , G02B2006/12097 , G02F2202/32
摘要： An optical element is provided that includes a base substrate, a waveguide substrate, and a thin film layer that is provided between the base substrate and the waveguide substrate and that has a single-layer structure of a multilayer structure including a film containing Ta2O5 or Nb2O5 as a principal component.
摘要翻译： 提供了一种光学元件，其包括基底基板，波导基板和设置在基底基板和波导基板之间的薄膜层，并且具有包括包含Ta
2 5或Nb 2 O 5 5作为主要成分。 -
公开(公告)号：US07133428B2
公开(公告)日：2006-11-07
申请号：US10461620
申请日：2003-06-13
IPC分类号： H01S3/00
CPC分类号： H01S5/0687 , G02B6/42 , G02B6/4201 , G02B6/4213 , G02B6/4215 , G02B6/4224 , G02B6/4257 , G02B6/4271 , G02B6/4272 , G02F1/37 , H01S5/0092 , H01S5/02252 , H01S5/02476 , H01S5/0612 , H01S5/06256 , H01S5/06837
摘要： A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value Io corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value Io, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value Io, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.
摘要翻译： 一种发光装置，包括：底座; 安装在底座上的半导体激光芯片; 基板，其安装在所述基座上并且包括光波导; 以及设置在半导体激光芯片和基板之间的具有预定厚度的物质。 在用于光源的振荡波长稳定装置中，光源是半导体激光器，其包括：用于提供增益的有源区; 以及用于控制振荡波长的分布式布拉格反射（DBR）区域。 该装置包括控制部分，其在检测半导体激光器的输出光的振荡波长的同时，沿第一方向在DBR区域中单向变化DBR电流，以便检测DBR电流值I < o ，然后将DBR电流在与第一方向相反的第二方向上单调地改变超过检测值I 0，然后单调地改变DBR电流 在第一方向上将DBR电流设定在检测值I
，从而将半导体激光器芯片的振荡波长固定在预定波长值。 -
73.发明申请Optical multilayer disk, multiwavelength light source, and optical system using them 审中-公开光学多层盘，多波长光源和使用它们的光学系统公开(公告)号：US20060193231A1
公开(公告)日：2006-08-31
申请号：US11409762
申请日：2006-04-24
IPC分类号： G11B7/135
CPC分类号： G11B7/243 , G02B6/126 , G02B6/29362 , G02B2006/12164 , G02F1/3532 , G02F1/3544 , G02F1/3775 , G02F2001/3548 , G02F2201/18 , G02F2203/58 , G11B7/00454 , G11B7/005 , G11B7/124 , G11B7/1275 , G11B7/1395 , G11B7/24038 , G11B7/259 , G11B7/26 , G11B2007/0013 , G11B2007/24312 , G11B2007/24314 , G11B2007/24316
摘要： When a wavelength of a first laser beam with which a first recording medium including a first recording layer is recorded and reproduced is indicated as λ1 (nm), a wavelength of a second laser beam with which a second recording medium including a second recording layer is recorded and reproduced as λ2 (nm), the relationship between the wavelength λ1 and the wavelength λ2 is set to be expressed by 10≦|λ1−λ2|≦120. The first recording layer has a light absorptance ratio of at least 1.0 with respect to the wavelength λ1. The light transmittance of the first recording medium with respect to the wavelength λ2 is set to be at least 30 in both the cases where the recording layer is in a crystal state and in an amorphous state. In order to record and reproduce the optical multilayer disk with the above-mentioned characteristics, a multiwavelength light source with the following configuration is used. Wavelengths of fundamental waves with different wavelengths from injection parts formed at one end of a plurality of optical waveguides, which satisfy phase matching conditions different from one another and are formed in the vicinity of the surface of a substrate, are converted simultaneously, and the first and second laser beams are emitted from emission parts formed at substantially the same position at the other end of the optical waveguides. This enables an optimum optical system for high density recording and reproduction to be obtained.
摘要翻译： 当记录和再现包括第一记录层的第一记录介质的第一激光束的波长被指示为λ1（nm）时，包括第二记录层的第二记录介质的第二激光束的波长为 记录和再现为λ2（nm），波长λ1和波长λ2之间的关系被设置为由10≤λ1-λ2 |≤120表示。 第一记录层相对于波长λ1具有至少1.0的光吸收率。 在记录层处于结晶状态和非晶状态的情况下，第一记录介质相对于波长λ2的透光率被设定为至少30。 为了记录和再现具有上述特性的光学多层盘，使用具有以下构造的多波长光源。 同时转换与形成在多个光波导的一端的注入部分不同的波长的波长的波长，其满足彼此不同并且形成在基板表面附近的相位匹配条件，并且第一 并且第二激光束从形成在光波导的另一端处的基本相同位置处的发射部分发射。 这使得能够获得用于高密度记录和再现的最佳光学系统。
-
74.发明授权Optical device, laser beam source, laser apparatus and method of producing optical device 失效光学装置，激光束源，激光装置及其制造方法公开(公告)号：US06914918B2
公开(公告)日：2005-07-05
申请号：US09922978
申请日：2001-08-06
IPC分类号： G02F1/355 , G02F1/377 , H01S3/0941 , H01S3/109 , H01S3/10
CPC分类号： G02F1/37 , G02F1/3558 , G02F1/3775 , G02F2203/60 , H01S3/09415 , H01S3/109 , H01S3/23 , H01S5/0092 , H01S5/02 , H01S5/40 , H01S5/4087
摘要： After forming domain inverted layers 3 in an LiTaO3 substrate 1, an optical waveguide is formed. By performing low-temperature annealing for the optical wavelength conversion element thus formed, a stable proton exchange layer 8 is formed, where an increase in refractive index generated during high-temperature annealing is lowered, thereby providing a stable optical wavelength conversion element. Thus, the phase-matched wavelength becomes constant, and variation in harmonic wave output is eliminated. Consequently, with respect to an optical wavelength conversion element utilizing a non-linear optical effect, a highly reliable element is provided.
摘要翻译： 在LiTaO 3衬底1中形成畴反转层3之后，形成光波导。 通过对由此形成的光波长转换元件进行低温退火，形成稳定的质子交换层8，在高温退火时产生的折射率的升高降低，从而提供稳定的光波长转换元件。 因此，相位匹配波长变得恒定，并且消除了谐波输出的变化。 因此，对于利用非线性光学效应的光波长转换元件，提供了高度可靠的元件。
-
公开(公告)号：US06327289B1
公开(公告)日：2001-12-04
申请号：US09146024
申请日：1998-09-02
IPC分类号： H01S500
CPC分类号： H01S5/06256 , G02B6/12004 , G02B6/4202 , G02B6/4224 , G02B6/423 , G02B6/4231 , G02B6/4238 , G02B6/4249 , G02F1/3775 , H01L2224/48463 , H01S5/0092 , H01S5/0224 , H01S5/02268 , H01S5/02272 , H01S5/02284 , H01S5/02446 , H01S5/125
摘要： A wavelength-variable semiconductor laser includes: a submount; and a semiconductor laser chip being mounted onto the submount and having at least an active layer region and a distributed Bragg reflection region, wherein the semiconductor laser chip is mounted onto the submount in such a manner that an epitaxial growth surface thereof faces the submount and a heat transfer condition of the active layer region is different from a heat transfer condition of the distributed Bragg reflection region. Moreover, an optical integrated device includes at least a semiconductor laser and an optical waveguide device both mounted on a submount, wherein the semiconductor laser is the wavelength-variable semiconductor laser as set forth above.
-
公开(公告)号：US5836073A
公开(公告)日：1998-11-17
申请号：US548035
申请日：1995-10-25
CPC分类号： G02F1/3558 , G02F1/3775 , G02F2001/3546 , G02F2001/3548 , G02F2201/346 , G02F2202/20 , Y10T29/49016
摘要： An optical wavelength converting device is provided with a LiTaO.sub.3 substrate, a plurality of inverted-polarization layers periodically arranged in an upper surface of the LiTaO.sub.3 substrate, and an optical waveguide crossing the inverted-polarization layers. The upper surface of the LiTaO.sub.3 substrate is directed toward a -X-crystal axis direction. The inverted-polarization layers are formed by exchanging Ta.sup.+ ions of the LiTaO.sub.3 substrate for H.sup.+ ions, and an extending direction of each inverted-polarization layer is inclined at an angle of .theta. degrees (6.ltoreq..theta..ltoreq.174) to the +C-crystal axis direction toward a -Y-crystal axis direction. The optical waveguide is formed by exchanging Ta.sup.+ ions of the LiTaO.sub.3 substrate and the inverted-polarization layers for H.sup.+ ions to set a refractive index of the optical waveguide higher than that of the LiTaO.sub.3 substrate. The optical waveguide extends in a +Y-crystal axis direction. Fundamental waves polarized in a transverse electric mode induce electric field directed in .+-.Y-crystal axis directions and are converted into second harmonic waves in the optical waveguide.
摘要翻译： 光波长转换装置设置有LiTaO 3衬底，周期性地布置在LiTaO 3衬底的上表面中的多个倒置极化层和与反极化层交叉的光波导。 LiTaO3基板的上表面朝向-X晶轴方向。 反相极化层是通过交换Li + TaO 3衬底的H +离子的Ta +离子形成的，并且每个反向偏振层的延伸方向以θ度（6°= 174°）的角度倾斜到 + C晶轴方向朝向-Y晶轴方向。 通过交换LiTaO 3衬底的Ta +离子和H +离子的反向偏振层来形成光波导，以使光波导的折射率高于LiTaO 3衬底的折射率。 光波导沿+ Y晶轴方向延伸。 在横向电模式中极化的基波感应在+/- Y晶轴方向上引导的电场，并在光波导中转换成二次谐波。
-
公开(公告)号：US5357533A
公开(公告)日：1994-10-18
申请号：US35957
申请日：1993-03-23
CPC分类号： B82Y20/00 , G02F1/3775 , G02F1/3551 , G02F1/361 , G02F2201/06 , G02F2202/20
摘要： The wavelength tolerance of a frequency doubler is enhanced so as to perform stable operation. Further, with the use of this frequency doubler, a laser source can directly modulate a laser. A waveguide and a periodic domain inverted layer are formed on an LiTaO.sub.3 substrate of -C plate, and the waveguide is divided into a plurality of zones having different propagation constants. A fundamental wave inputted in the waveguide is converted into a harmonic wave in each of the zones, and is emitted as SHG light. Parts for modulating the phases of the harmonic waves produced in the respective zones are provided between the zones.
摘要翻译： 提高倍频器的波长容差，从而稳定运行。 此外，通过使用该倍频器，激光源可以直接调制激光器。 在-C板的LiTaO 3衬底上形成波导和周期性畴反转层，并且波导被分成具有不同传播常数的多个区域。 在波导中输入的基波被转换为每个区域中的谐波，并作为SHG光发射。 用于调制在各个区域中产生的谐波的相位的部分设置在这些区域之间。
-
公开(公告)号：US5301059A
公开(公告)日：1994-04-05
申请号：US20335
申请日：1993-02-19
CPC分类号： H01S5/141 , H01S3/08009 , H01S3/109 , H01S5/005 , H01S5/0092 , H01S5/143
摘要： A short-wavelength light generating apparatus comprising a pumping semiconductor laser and an intra-cavity solid state laser, the intra-cavity solid state laser is excited in response to a laser light beam from the semiconductor laser to generate a short-wavelength light beam to an external. Also included in the apparatus is an external grating mirror having on its one surface a reflection type diffraction grating and placed between the semiconductor laser and the intra-cavity solid state laser. The external grating mirror reflects the laser light beam from the semiconductor laser to feedback a portion of the laser light beam to said semiconductor laser so that an oscillated wavelength of the semiconductor laser becomes within a wavelength acceptance of the intra-cavity solid state laser. Further, the external grating mirror supplies a portion of the laser light beam from the semiconductor laser to the intra-cavity solid state laser. This arrangement can output a stable harmonic wave with a high efficiency.
摘要翻译： 一种包括泵浦半导体激光器和腔内固体激光器的短波长发光装置，响应于来自半导体激光器的激光束激发腔内固态激光器，以产生短波长光束 外部的。 该装置中还包括外置光栅镜，其一面具有反射型衍射光栅，并设置在半导体激光器和腔内固态激光器之间。 外部光栅镜反射来自半导体激光器的激光束，以将激光束的一部分反射到所述半导体激光器，使得半导体激光器的振荡波长变得在腔内固态激光器的波长接受范围内。 此外，外部光栅镜将激光束的一部分从半导体激光器提供给腔内固态激光器。 这种布置可以以高效率输出稳定的谐波。
-
公开(公告)号：US08287131B2
公开(公告)日：2012-10-16
申请号：US12744769
申请日：2008-11-25
申请人： Tetsuro Mizushima , Toshifumi Yokoyama , Tatsuo Itoh , Kenji Nakayama , Kiminori Mizuuchi , Kazuhisa Yamamoto
发明人： Tetsuro Mizushima , Toshifumi Yokoyama , Tatsuo Itoh , Kenji Nakayama , Kiminori Mizuuchi , Kazuhisa Yamamoto
CPC分类号： H01S3/109 , G02F1/3558 , H01S3/025 , H01S3/07 , H01S3/08086 , H01S3/09415 , H01S3/1671 , H01S3/1673 , H01S3/2375
摘要： A wavelength conversion laser is provided with a solid-state laser having a cavity, and a wavelength converting element arranged within the cavity. The solid-state laser includes two or more types of laser crystals and oscillates solid-state laser light of multiple wavelengths. The wavelength converting element converts the solid-state laser light of multiple wavelengths into light of second harmonic waves and sum-frequency wave of multiple wavelengths and simultaneously generates the second harmonic waves and sum-frequency wave of multiple wavelengths. The wavelength conversion laser outputs converted wavelength light having a broad spectral width and low coherency, thereby enabling it to carry out highly efficient and stable high-output oscillation.
摘要翻译： 波长转换激光器设置有具有空腔的固态激光器和布置在空腔内的波长转换元件。 固体激光器包括两种或更多种类型的激光晶体并振荡多个波长的固态激光。 波长转换元件将多个波长的固态激光转换为二次谐波和多个波长的和频波的光，同时产生多个波长的二次谐波和和频波。 波长转换激光器输出具有宽光谱宽度和低相干性的转换波长光，从而使其能够执行高效稳定的高输出振荡。
-
公开(公告)号：US08270440B2
公开(公告)日：2012-09-18
申请号：US11918011
申请日：2006-04-07
IPC分类号： H01S3/30
CPC分类号： H01S3/0602 , H01S3/0627 , H01S3/0675 , H01S3/094003 , H01S3/09415 , H01S3/113 , H01S3/1613 , H01S5/146 , H01S5/32341
摘要： A laser light source is provided with a pump light source (1) comprising a semiconductor laser, a solid laser medium (2) which is excited by the semiconductor laser, and multi-mode means for changing at least either a longitudinal mode or a transverse mode of laser oscillation of the solid laser. The oscillation light of the laser medium excited by the light outputted from the pump light source is changed by the multi-mode means into output light (5) having a plurality of oscillation spectra and is outputted, thereby a small, high power, and highly efficient low coherent light source can be realized, and a laser light source having reduced speckle noises can be provided.
摘要翻译： 激光源设置有包括半导体激光器的激光光源（1），被半导体激光器激发的固体激光介质（2），以及用于至少改变纵向模式或横向 固体激光器的激光振荡模式。 由泵浦光源输出的光激发的激光介质的振荡光由多模式变化为具有多个振荡光谱的输出光（5），从而输出小，高功率，高 可以实现有效的低相干光源，并且可以提供具有减少的斑点噪声的激光光源。
-
-
-
-
-
-
-
-
-
搜索结果
372 条记录 (耗时 0.045 秒)
