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

IPC分类号： H01S3/106 ,  H01S5/062 ,  H01S5/14 ,  H01S3/10

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：US20050094680A1

公开(公告)日：2005-05-05

申请号：US10810601

申请日：2004-03-29

申请人： Kazumasa Takabayashi ,  Ken Morito ,  Yuji Kotaki

发明人： Kazumasa Takabayashi ,  Ken Morito ,  Yuji Kotaki

IPC分类号： H01S5/0625 ,  H01S5/068 ,  H01S5/0687 ,  H01S5/14 ,  H01S3/10

CPC分类号： H01S5/0687 ,  H01S5/06255 ,  H01S5/06808 ,  H01S5/141

摘要： There is provided a phase control portion for controlling phase of a laser beam resonated in a resonator based on detected results by two optical detectors. The phase control portion adjusts the longitudinal mode positions by a feedback control so that a ratio of intensities detected by the two optical detectors comes to a predetermined reference value. To one of the optical detectors, part of a laser beam outputted from the resonator is irradiated as it is, whereas, to the other one of the optical detectors, part of the laser beam outputted from the resonator is irradiated after passing through an etalon. An FSR of the etalon is a double of that of another etalon in the resonator.

摘要翻译： 提供了一种相位控制部分，用于基于两个光学检测器的检测结果来控制谐振器中谐振的激光束的相位。 相位控制部分通过反馈控制来调节纵向模式位置，使得由两个光学检测器检测到的强度比达到预定的参考值。 对于光检测器中的一个，从谐振器输出的激光束的一部分照原样照射，而对另一个光检测器，从谐振器输出的激光束的一部分在通过标准具之后被照射。 标准具的FSR是谐振器中另一个标准具的FSR的两倍。

公开(公告)号：US07130322B2

公开(公告)日：2006-10-31

申请号：US10810601

申请日：2004-03-29

申请人： Kazumasa Takabayashi ,  Ken Morito ,  Yuji Kotaki

发明人： Kazumasa Takabayashi ,  Ken Morito ,  Yuji Kotaki

IPC分类号： H01S3/13 ,  H01S3/10 ,  H01S3/00

CPC分类号： H01S5/0687 ,  H01S5/06255 ,  H01S5/06808 ,  H01S5/141

摘要： There is provided a phase control portion for controlling phase of a laser beam resonated in a resonator based on detected results by two optical detectors. The phase control portion adjusts the longitudinal mode positions by a feedback control so that a ratio of intensities detected by the two optical detectors comes to a predetermined reference value. To one of the optical detectors, part of a laser beam outputted from the resonator is irradiated as it is, whereas, to the other one of the optical detectors, part of the laser beam outputted from the resonator is irradiated after passing through an etalon. An FSR of the etalon is a double of that of another etalon in the resonator.

摘要翻译： 提供了一种相位控制部分，用于基于两个光学检测器的检测结果来控制谐振器中谐振的激光束的相位。 相位控制部分通过反馈控制来调节纵向模式位置，使得由两个光学检测器检测到的强度比达到预定的参考值。 对于光检测器中的一个，从谐振器输出的激光束的一部分照原样照射，而对另一个光检测器，从谐振器输出的激光束的一部分在通过标准具之后被照射。 标准具的FSR是谐振器中另一个标准具的FSR的两倍。

公开(公告)号：US20070258681A1

公开(公告)日：2007-11-08

申请号：US11826592

申请日：2007-07-17

申请人： Kazumasa Takabayashi ,  Ken Morito

发明人： Kazumasa Takabayashi ,  Ken Morito

IPC分类号： G02B6/26

CPC分类号： G02F1/025 ,  B82Y20/00 ,  G02B6/14 ,  G02B6/2813 ,  G02B2006/12152 ,  G02F1/01708 ,  G02F2001/217 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/06206 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/20 ,  H01S5/50

摘要： In order to make it possible to suppress the influence of reflected light on a connection interface easily and with certainty, an optical waveguide device includes a first optical waveguide (1), a second optical waveguide (2) formed from a material or in a structure different from that of the first optical waveguide (1) and connected to the first optical waveguide (1), and a 1×1 multimode interference waveguide (3) formed by increasing the widths of the first optical waveguide (1) and the second optical waveguide (2) in the proximity of a connection interface between the first optical waveguide (1) and the second optical waveguide (2).

摘要翻译： 为了能够容易地且可靠地抑制反射光对连接界面的影响，光波导装置包括第一光波导（1），由材料或结构形成的第二光波导（2） 与第一光波导（1）的不同，并且连接到第一光波导（1），以及通过增加第一光波导（1）和第二光波导（1）的宽度形成的1x1多模干涉波导（3） 2）在第一光波导（1）和第二光波导（2）之间的连接接口附近。

公开(公告)号：US07539378B2

公开(公告)日：2009-05-26

申请号：US11826592

申请日：2007-07-17

申请人： Kazumasa Takabayashi ,  Ken Morito

发明人： Kazumasa Takabayashi ,  Ken Morito

IPC分类号： G02B6/42 ,  G02B6/26

CPC分类号： G02F1/025 ,  B82Y20/00 ,  G02B6/14 ,  G02B6/2813 ,  G02B2006/12152 ,  G02F1/01708 ,  G02F2001/217 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/06206 ,  H01S5/101 ,  H01S5/1014 ,  H01S5/12 ,  H01S5/20 ,  H01S5/50

摘要： In order to make it possible to suppress the influence of reflected light on a connection interface easily and with certainty, an optical waveguide device includes a first optical waveguide (1), a second optical waveguide (2) formed from a material or in a structure different from that of the first optical waveguide (1) and connected to the first optical waveguide (1), and a 1×1 multimode interference waveguide (3) formed by increasing the widths of the first optical waveguide (1) and the second optical waveguide (2) in the proximity of a connection interface between the first optical waveguide (1) and the second optical waveguide (2).

摘要翻译： 为了能够容易地且可靠地抑制反射光对连接界面的影响，光波导装置包括第一光波导（1），由材料或结构形成的第二光波导（2） 与第一光波导（1）的不同，并且连接到第一光波导（1），以及通过增加第一光波导（1）和第二光波导（1）的宽度形成的1x1多模干涉波导（3） 2）在第一光波导（1）和第二光波导（2）之间的连接接口附近。

公开(公告)号：US07158547B2

公开(公告)日：2007-01-02

申请号：US11004907

申请日：2004-12-07

申请人： Shinsuke Tanaka ,  Ken Morito ,  Kazumasa Takabayashi

发明人： Shinsuke Tanaka ,  Ken Morito ,  Kazumasa Takabayashi

IPC分类号： H01S3/10 ,  H01S5/00

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：US20050226284A1

公开(公告)日：2005-10-13

申请号：US11004907

申请日：2004-12-07

申请人： Shinsuke Tanaka ,  Ken Morito ,  Kazumasa Takabayashi

发明人： Shinsuke Tanaka ,  Ken Morito ,  Kazumasa Takabayashi

IPC分类号： H01S5/0625 ,  H01S5/10 ,  H01S5/14 ,  H01S5/20 ,  H01S5/34 ,  H01S3/10

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：US07508849B2

公开(公告)日：2009-03-24

申请号：US11020241

申请日：2004-12-27

申请人： Shinsuke Tanaka ,  Ken Morito

发明人： Shinsuke Tanaka ,  Ken Morito

IPC分类号： H01S3/10 ,  H01S3/13 ,  H01S3/00 ,  H01S3/04

CPC分类号： H01S5/141 ,  G02B5/284 ,  H01S3/1068 ,  H01S5/0612 ,  H01S5/0687 ,  H01S5/1071 ,  H01S5/142

摘要： A semiconductor optical amplifier, an acousto-optic tunable filter, a phase shifter, a lens, and an internal etalon are arranged in a resonator. Outside the resonator, two lenses, two beam splitters, two photo-detectors, and an external etalon are arranged. The internal etalon is a quartz etalon and the external etalon is a crystal etalon. Therefore, the rate of change in transmission peak wavelength of the internal etalon to a temperature change is greater than that of the external etalon.

摘要翻译： 谐振器中布置有半导体光放大器，声光可调滤波器，移相器，透镜和内标准器。 在谐振器外部，布置了两个透镜，两个分束器，两个光电检测器和外部标准具。 内部标准具是石英标准具，外部标准具是一种水晶标准具。 因此，内部标准具的透射峰值波长与温度变化的变化率大于外部标准具的变化率。

公开(公告)号：US20080199128A1

公开(公告)日：2008-08-21

申请号：US12071007

申请日：2008-02-14

申请人： Shinsuke Tanaka ,  Ken Morito

发明人： Shinsuke Tanaka ,  Ken Morito

IPC分类号： G02B6/12

CPC分类号： G02B6/125 ,  G02B6/2821

摘要： Aiming at realizing a semiconductor integrated optical element comprising a single semiconductor substrate, and first and second optical waveguides differed in the equivalent refractive index from each other on the semiconductor substrate, allowing light signal to propagate from the first optical waveguide to the second optical waveguide, in which the first and second optical waveguides are provided side-by-side on the semiconductor substrate to form a directional coupler allowing optical coupling between the first and second optical waveguides, and a first-guiding-mode optical signal in the first optical waveguide is output after being converted into a second-guiding-mode optical signal in second optical waveguide, which makes possible to suppress generation of reflection loss and emission loss in optical coupling, and obtain extremely desirable optical coupling characteristics, without causing reflection of optical signal, between different types of optical waveguides differed from each other in the equivalent refractive index.

摘要翻译： 为了实现包括单个半导体衬底和第一和第二光波导的半导体集成光学元件在半导体衬底上的等效折射率彼此不同，允许光信号从第一光波导传播到第二光波导， 其中所述第一和第二光波导在所述半导体衬底上并排设置以形成允许所述第一和第二光波导之间的光耦合的定向耦合器，并且所述第一光波导中的第一引导模式光信号是 在第二光波导中被转换为第二引导模式光信号之后，输出可以抑制光耦合中的反射损耗和发射损耗的产生，并且获得非常期望的光耦合特性，而不引起光信号的反射 不同类型的光波导与e不同 ach其他在等效折射率。

公开(公告)号：US07112827B2

公开(公告)日：2006-09-26

申请号：US10690469

申请日：2003-10-22

申请人： Akinori Hayakawa ,  Yoshihiro Sato ,  Ken Morito ,  Norihiko Sekine

发明人： Akinori Hayakawa ,  Yoshihiro Sato ,  Ken Morito ,  Norihiko Sekine

IPC分类号： H01L29/74 ,  H01L31/111 ,  H01S3/10 ,  H01S3/17

CPC分类号： H01S5/0607 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/042 ,  H01S5/0425 ,  H01S5/06206 ,  H01S5/06258 ,  H01S5/1014 ,  H01S5/2206 ,  H01S5/227 ,  H01S5/32333 ,  H01S5/4012 ,  H01S5/4087 ,  H01S2301/173

摘要： A light oscillation part including an active layer for generating light by current injection, a tuning layer with an intermediate layer formed between the active layer and the tuning layer, for varying an oscillation wavelength by current injection and a diffraction grating formed near the active layer and the tuning layer, and a light amplification part including an active layer for amplifying light by current injection are formed on a semiconductor substrate. Light oscillation elements having wide wavelength variation ranges and the light amplification are integrated on a semiconductor substrate, whereby wide wavelength variation ranges can be obtained and the output light can be much increased.

摘要翻译： 一种光振荡部分，包括通过电流注入产生光的有源层，在有源层和调谐层之间形成中间层的调谐层，用于通过电流注入改变振荡波长，以及在有源层附近形成衍射光栅; 调谐层和包括用于通过电流注入来放大光的有源层的光放大部分形成在半导体衬底上。 具有宽波长变化范围的光振荡元件和光放大集成在半导体衬底上，由此可以获得宽的波长变化范围，并且输出光可以大大增加。