公开(公告)号：US20150070774A1

公开(公告)日：2015-03-12

申请号：US14191351

申请日：2014-02-26

Applicant: SHOWA OPTRONICS CO., LTD.

Inventor： Minoru Kadoya ,  Atsushi Masui

IPC: H01S5/00 ,  G02B26/00

CPC classification number: G02B26/002 ,  H01S3/08004 ,  H01S3/08059 ,  H01S3/105 ,  H01S5/0287 ,  H01S5/0653 ,  H01S5/141 ,  H01S5/32341

Abstract: A diode laser module includes a laser diode (1), an anamorphic prism pair (5) consisting of a pair of prisms (3, 4) having mutually different apex angles and/or made of material having mutually different refractive indices, and a partial reflective mirror (6; 16) disposed on a side of the anamorphic prism pair away from the laser diode and having a planar or spherical surface facing the anamorphic prism pair and coated with partial reflective coating (6a; 16a). The wavelength of the laser output can be changed by adjusting the position of the partial reflective mirror.

Abstract translation: 二极管激光器模块包括激光二极管（1），由具有相互不同的顶角的一对棱镜（3）和/或具有相互不同的折射率的材料制成的变形棱镜对（5），以及部分 反射镜（6; 16），其设置在远离激光二极管的一侧的变形棱镜对，并且具有面向变形棱镜对的平面或球形表面，并涂覆有部分反射涂层（6a; 16a）。 可以通过调整部分反射镜的位置来改变激光输出的波长。

公开(公告)号：US20140334506A1

公开(公告)日：2014-11-13

申请号：US14191333

申请日：2014-02-26

Applicant: Showa Optronics Co., Ltd.

Inventor： Minoru Kadoya

IPC: H01S3/13 ,  H01S3/00 ,  G02F1/29

CPC classification number: G02F1/29 ,  G02F1/0147 ,  G02F1/295 ,  G02F1/37 ,  G02F2201/58 ,  G02F2203/24 ,  H01S3/0071 ,  H01S3/0092 ,  H01S3/083 ,  H01S3/109 ,  H01S3/1306

Abstract: A light deflector for deflecting a propagation direction of laser includes: a first metallic piece and a second metallic piece spaced apart from each other; and a transparent medium and an electronic cooling element disposed between the first metallic piece and the second metallic piece such that each of the transparent medium and the electronic cooling element is in contact with the first metallic piece and the second metallic piece. The electronic cooling element creates a temperature difference between the first metallic piece and the second metallic piece to vary a refractive index of the transparent medium.

Abstract translation: 用于偏转激光传播方向的光偏转器包括：第一金属片和彼此间隔开的第二金属片; 以及设置在所述第一金属片和所述第二金属片之间的透明介质和电子冷却元件，使得所述透明介质和所述电子冷却元件中的每一个与所述第一金属片和所述第二金属片接触。 电子冷却元件在第一金属片和第二金属片之间产生温度差，以改变透明介质的折射率。

公开(公告)号：US20200313384A1

公开(公告)日：2020-10-01

申请号：US16819272

申请日：2020-03-16

Applicant: SHOWA OPTRONICS CO., LTD.

Inventor： Minoru Kadoya

IPC: H01S3/13 ,  H01S5/0683 ,  H01S3/0941

Abstract: A laser system includes: a laser light source; a light detector configured to output an electric current proportional to an output laser light of the laser light source; a resistor network configured to convert the electric current output from the light detector to a monitor voltage; and a regulator configured to control an intensity of the output laser light based on a comparison between the monitor voltage and a voltage corresponding to a control target value, wherein the resistor network comprises at least two branch circuits connected in parallel with each other, and the branch circuits include respective digital potentiometer circuits commonly formed in a single device.

公开(公告)号：US20150116801A1

公开(公告)日：2015-04-30

申请号：US14191390

申请日：2014-02-26

Applicant: SHOWA OPTRONICS CO., LTD.

Inventor： Minoru Kadoya ,  Kenji Ohara

IPC: H01S5/00 ,  H01S5/024

CPC classification number: H01S5/02415 ,  H01S5/0683 ,  H01S5/06837 ,  H01S5/141 ,  H01S2301/163

Abstract: A single longitudinal mode diode laser module including a laser diode (1) and an external resonator using a volume holographic grating (3) having a prescribed reflective bandwidth is made amenable to automatic power control by controlling the temperature of the laser diode such that the laser power may be allowed to increase monotonically with an increase in the input current. Therefore, the output laser power can be controlled at a constant level by automatic power control or by adjusting the input current while monitoring the laser power at any desired level of the laser power.

Abstract translation: 使用具有规定的反射带宽的体积全息光栅（3）的包括激光二极管（1）和外部谐振器的单个纵模模式二极管激光器模块可以通过控制激光二极管的温度使得激光器 随着输入电流的增加，功率可以单调增加。 因此，可以通过自动功率控制或通过在任何期望的激光功率水平监视激光功率的同时调节输入电流来将输出激光功率控制在恒定水平。