公开(公告)号：US20120050118A1

公开(公告)日：2012-03-01

申请号：US13213384

申请日：2011-08-19

申请人： Tasuku Teshirogi ,  Shigenori Mattori ,  Takashi Kawamura ,  Aya Yamamoto

发明人： Tasuku Teshirogi ,  Shigenori Mattori ,  Takashi Kawamura ,  Aya Yamamoto

IPC分类号： G01R29/08

CPC分类号： G01R29/10

摘要： Provided is a technique capable of accurately calculating the radiation power of an object to be measured using a spheroidal coupler even when there is a non-negligible loss in a measurement system.A phase rotating unit including a variable phase shifter, a two-branch circuit, and a reflective element that is connected to one of the branched outputs of the two-branch circuit is inserted between a receiving antenna and a power measuring device. The maximum value and the minimum value of power measured by a power measuring device when the variable phase shifter changes a phase are calculated. An output reflection coefficient of a coupler is calculated from the ratio of the maximum value to the minimum value, and an input reflection coefficient of an object to be measured which is approximate to the output reflection coefficient is estimated. In addition, an input reflection coefficient of a reference antenna which is used instead of the object to be measured is estimated in the same way. The total radiated power of the object to be measured is calculated on the basis of the estimated input reflection coefficients and the reception power when the power measuring device directly measures the output of the receiving antenna.

摘要翻译： 提供了一种即使在测量系统中存在不可忽视的损耗的情况下，也能够使用球状耦合器精确地计算待测物体的辐射功率的技术。 包括可变移相器，双分支电路和连接到双分支电路的一个分支输出的反射元件的相位旋转单元插入在接收天线和功率测量装置之间。 计算当可变移相器改变相位时由功率测量装置测量的功率的最大值和最小值。 从最大值与最小值的比值计算耦合器的输出反射系数，并且估计近似于输出反射系数的被测量对象的输入反射系数。 此外，以相同的方式估计用于代替被测量物体的参考天线的输入反射系数。 基于估计的输入反射系数和功率测量装置直接测量接收天线的输出的接收功率，计算被测量物体的总辐射功率。

公开(公告)号：US08643553B2

公开(公告)日：2014-02-04

申请号：US13213384

申请日：2011-08-19

申请人： Tasuku Teshirogi ,  Shigenori Mattori ,  Takashi Kawamura ,  Aya Yamamoto

发明人： Tasuku Teshirogi ,  Shigenori Mattori ,  Takashi Kawamura ,  Aya Yamamoto

IPC分类号： G01R29/10

CPC分类号： G01R29/10

摘要： Provided is a technique capable of accurately calculating the radiation power of an object to be measured using a spheroidal coupler even when there is a non-negligible loss in a measurement system.A phase rotating unit including a variable phase shifter, a two-branch circuit, and a reflective element that is connected to one of the branched outputs of the two-branch circuit is inserted between a receiving antenna and a power measuring device. The maximum value and the minimum value of power measured by a power measuring device when the variable phase shifter changes a phase are calculated. An output reflection coefficient of a coupler is calculated from the ratio of the maximum value to the minimum value, and an input reflection coefficient of an object to be measured which is approximate to the output reflection coefficient is estimated. In addition, an input reflection coefficient of a reference antenna which is used instead of the object to be measured is estimated in the same way. The total radiated power of the object to be measured is calculated on the basis of the estimated input reflection coefficients and the reception power when the power measuring device directly measures the output of the receiving antenna.

摘要翻译： 提供了一种即使在测量系统中存在不可忽视的损耗的情况下，也能够使用球状耦合器精确地计算待测物体的辐射功率的技术。 包括可变移相器，双分支电路和连接到双分支电路的一个分支输出的反射元件的相位旋转单元插入在接收天线和功率测量装置之间。 计算当可变移相器改变相位时由功率测量装置测量的功率的最大值和最小值。 从最大值与最小值的比值计算耦合器的输出反射系数，并且估计近似于输出反射系数的被测量对象的输入反射系数。 此外，以相同的方式估计用于代替被测量物体的参考天线的输入反射系数。 基于估计的输入反射系数和功率测量装置直接测量接收天线的输出的接收功率，计算被测量物体的总辐射功率。

公开(公告)号：US06594289B2

公开(公告)日：2003-07-15

申请号：US09741275

申请日：2000-12-19

申请人： Atsushi Yamada ,  Shigenori Mattori

发明人： Atsushi Yamada ,  Shigenori Mattori

IPC分类号： H01S310

CPC分类号： H01S5/141 ,  H01S5/0687 ,  H01S5/16 ,  H01S5/164

摘要： A tunable laser source apparatus including an external cavity has a semiconductor laser and a wavelength selector. The semiconductor laser includes a reflection surface, a surface with an anti-reflection film and an active layer. The selector selects from laser light emitted from the laser through the surface with the anti-reflection film and feeding laser light of a desired wavelength back to the laser through the surface with the anti-reflection film. The semiconductor laser has a window region formed between a tip portion of the active layer extending toward the surface with the anti-reflection film and the surface with the anti-reflection film, the window region allowing the laser light of the desired wavelength fed back from the selector to be coupling thereon, while dilating the beam size of a portion of the laser light which is reflected from the surface with the anti-reflection film and reach the tip portion film.

摘要翻译： 包括外部空腔的可调谐激光源设备具有半导体激光器和波长选择器。 半导体激光器包括反射面，具有防反射膜的表面和有源层。 选择器从激光器通过表面与防反射膜进行激光的选择，并将所需波长的激光通过表面与抗反射膜反射回激光。 半导体激光器具有窗口区域，该窗口区域形成在有效层的顶端部分与抗反射膜之间朝向表面延伸，并且具有防反射膜的表面，窗口区域允许所需波长的激光从 选择器在其上耦合，同时用抗反射膜扩大从表面反射的一部分激光的光束尺寸并到达尖端部分膜。

公开(公告)号：US6141360A

公开(公告)日：2000-10-31

申请号：US701027

申请日：1996-08-21

申请人： Shigeru Kinugawa ,  Shigenori Mattori

发明人： Shigeru Kinugawa ,  Shigenori Mattori

IPC分类号： H01S3/082 ,  H01S3/1055 ,  H01S5/00 ,  H01S5/065 ,  H01S5/10 ,  H01S5/14 ,  H01S3/10

CPC分类号： H01S3/0826 ,  H01S5/141 ,  H01S5/1021

摘要： A laser light source apparatus includes a compound cavity and an optical gain medium. The compound cavity includes first, second, and third optical reflection members disposed along the optical axis. The first optical reflection member has a light wavelength selectivity. At least one of the first to third optical reflection members can change its own position on an optical axis in relation to the other reflection members. Two of the first to third optical reflection members are provided opposite to each other with the optical gain medium inserted therebetween, thereby forming a laser light source. The other one optical reflection member is provided so as to form a light path for feeding laser light emitted from the laser light source back to the laser light source.

摘要翻译： 激光光源装置包括复合腔和光学增益介质。 复合腔包括沿着光轴设置的第一，第二和第三光学反射部件。 第一光学反射构件具有光波长选择性。 第一至第三光学反射构件中的至少一个可以相对于其它反射构件在光轴上改变其自身位置。 第一至第三光学反射部件中的两个彼此相对设置，其中插入光学增益介质，从而形成激光光源。 设置另一个光学反射构件以形成用于将从激光光源发射的激光反射回激光光源的光路。

公开(公告)号：US6081539A

公开(公告)日：2000-06-27

申请号：US281711

申请日：1999-03-30

申请人： Shigenori Mattori ,  Shigeru Kinugawa ,  Takanori Saitoh

发明人： Shigenori Mattori ,  Shigeru Kinugawa ,  Takanori Saitoh

IPC分类号： H04B10/516 ,  H01S5/00 ,  H01S5/042 ,  H01S5/065 ,  H01S5/14 ,  H04B10/07 ,  H04B10/564 ,  H04B10/572 ,  H04B10/61 ,  H01S3/10

CPC分类号： H01S5/141 ,  H01S5/143

摘要： A tunable laser source apparatus includes an external cavity. The external cavity includes a semiconductor laser and a diffraction section. At least one laser output end facet of the semiconductor laser is covered with an AR coating. The diffraction section includes a first reflector and a diffraction grating, and has wavelength selectivity with which light emerging from the end facet of the semiconductor laser which is covered with the AR coating is received, and light having a predetermined wavelength is selected and reflected toward the semiconductor laser. The semiconductor laser further includes an angle detection section and a control section. The angle detection section detects the angle defined by the optical path of the light emerging from the semiconductor laser and the optical path of the diffracted light reflected by the diffraction section. The control section controls at least the cavity length of the external cavity or the selected wavelength of the diffraction section to set the angle detected by the angle detection section to zero.

摘要翻译： 可调谐激光源装置包括外部空腔。 外部空腔包括半导体激光器和衍射部分。 半导体激光器的至少一个激光输出端面被AR涂层覆盖。 衍射部分包括第一反射器和衍射光栅，并且具有波长选择性，从AR接收覆盖半导体激光器的端面的出射光，从而选择具有预定波长的光并反射到 半导体激光器。 半导体激光器还包括角度检测部分和控制部分。 角度检测部分检测由半导体激光器出射的光的光路和由衍射部分反射的衍射光的光路所限定的角度。 控制部分至少控制外腔的腔长度或衍射部分的选定波长，以将由角度检测部检测到的角度设置为零。