WAVELENGTH-TUNABLE LASER
    21.
    发明申请
    WAVELENGTH-TUNABLE LASER 有权
    波长能激光

    公开(公告)号:US20160056608A1

    公开(公告)日:2016-02-25

    申请号:US14781978

    申请日:2014-04-07

    申请人: PHOVEL.CO.LTD.

    发明人: Jeong Soo KIM

    IPC分类号: H01S5/06

    摘要: The present invention relates to a wavelength-tunable laser, which can tune an oscillating laser wavelength and can be manufactured in a small size, comprising: a laser diode chip (100) for emitting a laser beam; a partial reflection mirror (500) for optical feedback, which partially reflects the beam emitted from the laser diode chip (100) so as to enable the reflected beam to be fed back to the laser diode chip (100); a collimation lens (200) provided on an optical path between the laser diode chip (100) and the partial reflection mirror (500) for optical feedback so as to collimate the beam emitted from the laser diode chip (100); a wavelength-tunable selective filter (300) for converting the wavelength transmitted according to the temperature; a phase compensator (350) of which a refractive index is changed according to the temperature and which offsets a change in the refractive index according to the temperature of the semiconductor laser diode chip (100) or the wavelength-tunable selective filter (300); and a 45 degree reflection mirror (400) for switching the direction of the laser beam from the laser beam traveling in the horizontal direction with respect to a bottom surface of a package, to the laser beam traveling in the vertical direction with respect to the bottom surface of the package, wherein the laser diode chip (100), the wavelength-tunable selective filter (300), and the phase compensator (350) are disposed at an upper part of a thermoelectric element (900) so as to change the wavelength oscillating according to a change in the temperature of the thermoelectric element (900).

    摘要翻译: 波长可调激光器本发明涉及一种波长可调谐激光器,其可以调谐振荡的激光波长并且可以制造成小尺寸,包括:激光二极管芯片(100),用于发射激光束; 用于光学反馈的部分反射镜(500),其部分地反射从激光二极管芯片(100)发射的光束,以使反射光束能够反馈到激光二极管芯片(100); 准直透镜(200),设置在激光二极管芯片(100)和部分反射镜(500)之间的光路上用于光学反馈,以准直从激光二极管芯片(100)发射的光束; 用于转换根据温度传输的波长的波长可调选择滤光器(300); 相位补偿器(350),其折射率根据温度而改变,并且根据半导体激光二极管芯片(100)或波长可调选择滤光器(300)的温度来抵消折射率的变化; 以及用于将相对于封装的底面在水平方向上行进的激光束的激光束的方向切换成相对于底部在垂直方向上行进的激光束的45度反射镜(400) 其中所述激光二极管芯片(100),所述波长可调选择滤光器(300)和所述相位补偿器(350)设置在热电元件(900)的上部,以便改变所述波长 根据热电元件(900)的温度变化而振荡。