-
公开(公告)号：US07627212B2
公开(公告)日：2009-12-01
申请号：US12181448
申请日：2008-07-29
CPC分类号： H01S5/026 , G02B6/125 , G02B2006/121 , H01S5/4025 , H01S5/50
摘要： An optical integrated device includes an optical waveguide structure formed on a semiconductor substrate and including a plurality of first channel optical waveguide portions, an optical coupler portion and a second channel optical waveguide portion, a burying layer formed from a semi-insulating semiconductor material and burying the optical waveguide structure therein such that an upper portion thereof forms a flat face and a side portion thereof forms an inclined face having a predetermined angle with respect to the semiconductor substrate, and a plurality of dummy structure bodies provided over a desired region in the proximity of at least an output side of the optical coupler portion so that radiation light from the optical coupler portion is spatially separated from signal light propagating along the second channel optical waveguide portion. The plural dummy structure bodies are provided discretely so as to be buried flat by the burying layer.
摘要翻译： 光学集成器件包括形成在半导体衬底上并包括多个第一通道光波导部分的光波导结构，光耦合部分和第二通道光波导部分，由半绝缘半导体材料形成的掩埋层和埋入 其中的光波导结构使得其上部形成平坦面，并且其侧部形成相对于半导体衬底具有预定角度的倾斜面，以及设置在邻近的所需区域上的多个虚设结构体 至少一个光耦合器部分的输出侧，使得来自光耦合器部分的辐射光与沿着第二通道光波导部分传播的信号光在空间上分离。 多个虚拟结构体离散地设置成被埋入层平坦地埋设。
-
公开(公告)号：US20050226284A1
公开(公告)日：2005-10-13
申请号：US11004907
申请日：2004-12-07
CPC分类号： B82Y20/00 , H01S5/06256 , H01S5/1032 , H01S5/1035 , H01S5/141 , H01S5/34
摘要： A wavelength tunable laser device includes: a pair of reflection mirrors; a semiconductor element disposed between the pair of reflection mirrors, the semiconductor element integrating a region for providing an optical gain, a region having a wavelength tunable filter function and a phase control region; and an optical filter disposed between the semiconductor element and one of the pair of reflection mirrors, the optical filter having periodical transmission wavelengths. A wavelength tunable laser device is provided which is easy to be controlled and can be made compact.
摘要翻译： 一种波长可调激光器件包括：一对反射镜; 设置在一对反射镜之间的半导体元件，集成用于提供光学增益的区域的半导体元件，具有波长可调滤波器功能的区域和相位控制区域; 以及设置在所述半导体元件和所述一对反射镜中的一个之间的滤光器，所述滤光器具有周期性的透射波长。 提供了一种易于控制并且可以紧凑的波长可调激光器件。
-
公开(公告)号：US07158547B2
公开(公告)日：2007-01-02
申请号：US11004907
申请日：2004-12-07
CPC分类号： B82Y20/00 , H01S5/06256 , H01S5/1032 , H01S5/1035 , H01S5/141 , H01S5/34
摘要： A wavelength tunable laser device includes: a pair of reflection mirrors; a semiconductor element disposed between the pair of reflection mirrors, the semiconductor element integrating a region for providing an optical gain, a region having a wavelength tunable filter function and a phase control region; and an optical filter disposed between the semiconductor element and one of the pair of reflection mirrors, the optical filter having periodical transmission wavelengths. A wavelength tunable laser device is provided which is easy to be controlled and can be made compact.
摘要翻译： 一种波长可调激光器件包括：一对反射镜; 设置在一对反射镜之间的半导体元件，集成用于提供光学增益的区域的半导体元件，具有波长可调滤波器功能的区域和相位控制区域; 以及设置在所述半导体元件和所述一对反射镜中的一个之间的滤光器，所述滤光器具有周期性的透射波长。 提供了一种易于控制并且可以紧凑的波长可调激光器件。
-
4.发明授权公开(公告)号：US07242697B2
公开(公告)日：2007-07-10
申请号：US10459605
申请日：2003-06-12
申请人： Kazumasa Takabayashi
发明人： Kazumasa Takabayashi
IPC分类号： H01S3/10
CPC分类号： G02B6/2746 , G02B6/29358 , G02B6/29362 , G02F1/093 , G02F2203/055 , H01S3/1062 , H01S3/1066 , H01S5/141
摘要： A wavelength selection filter, a wavelenth selection laser, and a tunable laser for suppressing adverse effects of non-selected light when selected light is obtained by the wavelength selection filter. A linear polarizer is arranged on a side of the wavelength selection filter from which incoming light enters, and a first faraday element and a second faraday element arranged at respective locations between the linear polarizer and the wavelength selection filter, and between the wavelength selection filter and a reflection mirror for reflecting light having passed through the wavelength selection filter. After incoming light passes through a linear polarizer, selected light passes through the wavelength selection filter and is reflected by the reflection mirror, while non-selected light is reflected by the wavelength selection filter. The selected light and the non-selected light differ in the number of times they pass through faraday elements before they return to the linear polarizer.
摘要翻译： 波长选择滤波器，波长选择激光器和可调谐激光器，用于当通过波长选择滤波器获得所选择的光时，抑制非选择光的不利影响。 线偏振器布置在入射光入射的波长选择滤光片的一侧，布置在线偏振器和波长选择滤光器之间的相应位置处的第一法拉第元件和第二法拉第元件以及波长选择滤光片和 用于反射通过波长选择滤光器的光的反射镜。 入射光通过线性偏振器后，所选择的光通过波长选择滤光片并被反射镜反射，而未选择的光被波长选择滤光片反射。 所选择的光和未选择的光在它们返回到线性偏振器之前通过法拉第元件的次数不同。
-
公开(公告)号：US08724938B2
公开(公告)日：2014-05-13
申请号：US13358595
申请日：2012-01-26
申请人： Kazumasa Takabayashi
发明人： Kazumasa Takabayashi
CPC分类号： H01L31/03046 , H01L31/035281 , H01L31/105 , Y02E10/544
摘要： A tapered waveguide is provided for connection between an input waveguide and a photodiode. The width of the tapered waveguide increases as it extends from the input end that is connected to the input waveguide towards the output end that is connected to the photodiode. The tapered waveguide has an optimum half spread angle to cause higher-order mode excitation when receiving optical signal from the input waveguide. The photodiode either has a constant width or increases in width as it extends away from the output end of the tapered waveguide, its half spread angle being equal to or less than the half spread angle of the tapered waveguide.
摘要翻译： 提供锥形波导用于输入波导和光电二极管之间的连接。 锥形波导的宽度随着从连接到输入波导的输入端延伸到连接到光电二极管的输出端而增加。 锥形波导具有最佳的半扩展角，以在从输入波导接收光信号时引起高阶模式激励。 当光电二极管从锥形波导的输出端延伸出时，光电二极管或者具有恒定的宽度或宽度增加，其半扩展角度等于或小于锥形波导的半扩展角。
-
6.发明授权公开(公告)号：US08546899B2
公开(公告)日：2013-10-01
申请号：US13401016
申请日：2012-02-21
申请人： Kazumasa Takabayashi
发明人： Kazumasa Takabayashi
IPC分类号： H01L31/0232
CPC分类号： G02B6/12004 , G02B6/12002 , G02B6/2813
摘要： A light receiving element includes a waveguide that includes a waveguide core, a multi-mode interference waveguide that has a width larger than a width of the waveguide, the multi-mode interference waveguide receiving a first light from the waveguide core at a first end, and a photodetection portion that includes a first semiconductor layer and an absorption layer disposed on the first semiconductor layer, the first semiconductor layer including at least one layer and receiving a second light from the multi-mode interference waveguide at a second end, the absorption layer being disposed above the first semiconductor layer and absorbing the second light. A distance from the first end of the multi-mode interference waveguide to the second end of the photodetection portion is longer than 70% of a first length and shorter than 100% of the first length, the first length being a length where self-imaging occurs in the multi-mode interference waveguide.
摘要翻译： 光接收元件包括：波导，其包括波导芯，多模干涉波导，其宽度大于波导的宽度;多模干涉波导，在第一端接收来自波导芯的第一光; 以及光检测部，其包括设置在所述第一半导体层上的第一半导体层和吸收层，所述第一半导体层包括至少一层，并且在第二端接收来自所述多模干涉波导的第二光，所述吸收层 设置在第一半导体层上方并吸收第二光。 从多模干涉波导的第一端到光电检测部分的第二端的距离长于第一长度的70％且小于第一长度的100％，第一长度是自成像 发生在多模干涉波导中。
-
公开(公告)号：US08428399B2
公开(公告)日：2013-04-23
申请号：US12639068
申请日：2009-12-16
申请人： Kazumasa Takabayashi
发明人： Kazumasa Takabayashi
CPC分类号： G02F1/035 , B82Y20/00 , G02F1/01708 , G02F1/0316 , G02F1/0356 , Y10T29/49002 , Y10T29/49016 , Y10T29/49208
摘要： An optical module including a first optical coupler; a second optical coupler; a first optical waveguide; a second optical waveguide; a first electrode provided on the first optical waveguide; a second electrode provided on the second optical waveguide; a short electrode shorter than the first and second electrodes and provided on the second optical waveguide; and a first high-frequency connector and a second high-frequency connector; wherein, the short electrode provided on the second optical waveguide is coupled to the second high-frequency connector; and the first electrode provided on the first optical waveguide is coupled to the first high-frequency connector.
摘要翻译： 一种光学模块，包括第一光耦合器; 第二光耦合器; 第一光波导; 第二光波导; 设置在所述第一光波导上的第一电极; 设置在所述第二光波导上的第二电极; 短电极比第一和第二电极短，并设置在第二光波导上; 和第一高频连接器和第二高频连接器; 其中，设置在第二光波导上的短电极耦合到第二高频连接器; 并且设置在第一光波导上的第一电极耦合到第一高频连接器。
-
公开(公告)号：US07873082B2
公开(公告)日：2011-01-18
申请号：US12545422
申请日：2009-08-21
申请人： Kazumasa Takabayashi
发明人： Kazumasa Takabayashi
CPC分类号： H01S5/06256 , B82Y20/00 , H01S5/0268 , H01S5/0425 , H01S5/0654 , H01S5/1221 , H01S5/204 , H01S5/34306 , H01S5/4031 , H01S5/4087
摘要： A semiconductor integrated device includes a plurality of wavelength tunable lasers, provided on a semiconductor substrate, and having oscillation wavelength ranges different from each other. Each of the wavelength tunable lasers includes an optical waveguide including, alternately in an optical axis direction, a gain waveguide portion and a wavelength controlling waveguide portion, and a diffraction grating provided over both the gain waveguide portion and the wavelength controlling waveguide portion. A value obtained by dividing a width of the wavelength controlling waveguide portion by a width of the gain waveguide portion in one of the plurality of wavelength tunable lasers is larger than a value obtained by dividing a width of the wavelength controlling waveguide portion by a width of the gain waveguide portion in a different one of the wavelength tunable lasers, which oscillates on a shorter wavelength side with respect to an oscillation wavelength range of the one wavelength tunable laser.
摘要翻译： 半导体集成器件包括设置在半导体衬底上并具有彼此不同的振荡波长范围的多个波长可调谐激光器。 每个波长可调激光器包括光波导，其在光轴方向上交替地包括增益波导部分和波长控制波导部分，以及设置在增益波导部分和波长控制波导部分两者上的衍射光栅。 通过将波长控制波导部分的宽度除以多个波长可调激光器之一中的增益波导部分的宽度获得的值大于通过将波长控制波导部分的宽度除以宽度 波长可调激光器中的增益波导部分相对于一个波长可调激光器的振荡波长范围在较短波长侧振荡。
-
公开(公告)号：US06847662B2
公开(公告)日：2005-01-25
申请号：US10352044
申请日：2003-01-28
申请人： Martin Bouda , Ken Morito , Kazumasa Takabayashi , Tadao Nakazawa , Naoki Hashimoto , Hiroshi Onaka , Yuji Kotaki
发明人： Martin Bouda , Ken Morito , Kazumasa Takabayashi , Tadao Nakazawa , Naoki Hashimoto , Hiroshi Onaka , Yuji Kotaki
CPC分类号： H01S5/141 , H01S3/0632 , H01S3/082 , H01S3/1068 , H01S5/06226 , H01S5/101 , H01S5/1085 , H01S5/142
摘要： A wavelength-selectable laser with a resonance region formed by two reflecting surfaces include a gain medium generating a laser beam, a first filter, and a second filter. The first filter has a first controllable transmission region and transmits a first predetermined wavelength region of the laser beam generated in the gain medium, the first predetermined wavelength region matching the first controllable transmission region. The second filter has a plurality of periodically arranged second transmission regions and transmits a second predetermined wavelength region of the laser beam transmitted by the first filter, the second predetermined wavelength region matching one of the second transmission regions.
摘要翻译： 具有由两个反射表面形成的谐振区域的波长可选择激光器包括产生激光束，第一滤光器和第二滤光器的增益介质。 第一滤波器具有第一可控传输区域，并且透射在增益介质中产生的激光束的第一预定波长区域，第一预定波长区域与第一可控传输区域匹配。 第二滤光器具有多个周期性排列的第二透射区域，并且透射由第一滤光器透射的激光束的第二预定波长区域，第二预定波长区域与第二透射区域中的一个匹配。
-
公开(公告)号：US20090310630A1
公开(公告)日：2009-12-17
申请号：US12545422
申请日：2009-08-21
申请人： Kazumasa Takabayashi
发明人： Kazumasa Takabayashi
CPC分类号： H01S5/06256 , B82Y20/00 , H01S5/0268 , H01S5/0425 , H01S5/0654 , H01S5/1221 , H01S5/204 , H01S5/34306 , H01S5/4031 , H01S5/4087
摘要： A semiconductor integrated device includes a plurality of wavelength tunable lasers, provided on a semiconductor substrate, and having oscillation wavelength ranges different from each other. Each of the wavelength tunable lasers includes an optical waveguide including, alternately in an optical axis direction, a gain waveguide portion and a wavelength controlling waveguide portion, and a diffraction grating provided over both the gain waveguide portion and the wavelength controlling waveguide portion. A value obtained by dividing a width of the wavelength controlling waveguide portion by a width of the gain waveguide portion in one of the plurality of wavelength tunable lasers is larger than a value obtained by dividing a width of the wavelength controlling waveguide portion by a width of the gain waveguide portion in a different one of the wavelength tunable lasers, which oscillates on a shorter wavelength side with respect to an oscillation wavelength range of the one wavelength tunable laser.
摘要翻译： 半导体集成器件包括设置在半导体衬底上并具有彼此不同的振荡波长范围的多个波长可调谐激光器。 每个波长可调激光器包括光波导，其在光轴方向上交替地包括增益波导部分和波长控制波导部分，以及设置在增益波导部分和波长控制波导部分两者上的衍射光栅。 通过将波长控制波导部分的宽度除以多个波长可调激光器之一中的增益波导部分的宽度获得的值大于通过将波长控制波导部分的宽度除以宽度 波长可调激光器中的增益波导部分相对于一个波长可调激光器的振荡波长范围在较短波长侧振荡。
-
-
-
-
-
-
-
-
-
搜索结果
20 条记录 (耗时 0.023 秒)