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    • 12. 发明授权
    • Optical apparatus and method for producing the same
    • 光学装置及其制造方法
    • US06298075B1
    • 2001-10-02
    • US09480217
    • 2000-01-10
    • Yasuo KitaokaKazuhisa YamamotoMakoto KatoKiminori MizuuchiKenichi Nishiuchi
    • Yasuo KitaokaKazuhisa YamamotoMakoto KatoKiminori MizuuchiKenichi Nishiuchi
    • H01S300
    • H01S5/0687G02B6/42G02B6/4201G02B6/4213G02B6/4215G02B6/4224G02B6/4257G02B6/4271G02B6/4272G02F1/37H01S5/0092H01S5/02252H01S5/02476H01S5/0612H01S5/06256H01S5/06837
    • A light generating apparatus includes: a submount; a semiconductor laser chip mounted on the submount; a substrate which is mounted on the submount and includes an optical waveguide; and a substance having a predetermined thickness which is disposed between the semiconductor laser chip and the substrate. In an oscillation wavelength stabilizing apparatus for a light source, the light source is a semiconductor laser which includes: an active region for providing gain; and a distributed Bragg reflection (DBR) region for controlling an oscillation wavelength. The apparatus includes a control section which monotonously varies, in a first direction, a DBR current to be input to the DBR region while detecting the oscillation wavelength of an output light of the semiconductor laser so as to detect a DBR current value Io corresponding to a predetermined wavelength value, and then monotonously varies the DBR current in a second direction which is opposite the first direction beyond the detected value Io, and then monotonously varies the DBR current in the first direction again to set the DBR current at the detected value Io, thereby fixing the oscillation wavelength of the semiconductor laser chip at the predetermined wavelength value.
    • 一种发光装置,包括:底座; 安装在底座上的半导体激光芯片; 基板,其安装在所述基座上并且包括光波导; 以及设置在半导体激光芯片和基板之间的具有预定厚度的物质。 在用于光源的振荡波长稳定装置中,光源是半导体激光器,其包括:用于提供增益的有源区; 以及用于控制振荡波长的分布式布拉格反射(DBR)区域。 该装置包括控制部分,其在检测半导体激光器的输出光的振荡波长的同时,在第一方向上单向地变化要输入到DBR区域的DBR电流,以便检测对应于所述半导体激光器的DBR电流值Io 预定波长值,然后在与第一方向相反的第二方向上将DBR电流单调变化超过检测值Io,然后再次单向地改变第一方向上的DBR电流,以将DBR电流设定在检测值Io, 从而将半导体激光器芯片的振荡波长固定在预定波长值。