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    • 3. 发明公开
    • 반도체 레이저 장치 및 그 제조방법
    • 半导体激光器及其制造方法
    • KR1020020046905A
    • 2002-06-21
    • KR1020010048139
    • 2001-08-10
    • 미쓰비시덴키 가부시키가이샤
    • 타시로요시히사카와즈젬페이니시구치하루미야기테쓰야시마아키히로
    • H01S5/30
    • H01S5/162H01S2302/00
    • PURPOSE: To provide a semiconductor laser that is less in variation, with respect to COD deterioration and is high in reliability. CONSTITUTION: In the semiconductor laser 10 having an oscillation wavelength of 770-810 nm, a disordered area is formed as a window layer 20, by introducing an impurity to an MQW active layer 16 in the vicinity of the end face of the laser 10. The window layer 20 is irradiated with exciting light, and the wavelength λdpl (nm) of the photoluminescence light of the layer 20 is measured. The COD level of a product is predicted in a middle stage of a process, based on degree of a blue shift λbl which is the difference between the wavelength λapl (nm) of the photoluminescence light generated, when the active layer 16 is irradiated with the exciting light and the wavelength λdpl (nm) of the photoluminscence light generated with the window layer 20 is irradiated with the exciting light.
    • 目的:提供一种半导体激光器,其相对于COD劣化的变化较小,可靠性高。 构成:在具有770-810nm的振荡波长的半导体激光器10中,通过在激光器10的端面附近的MQW有源层16引入杂质,形成无序区域作为窗口层20。 用激发光照射窗口层20,并测量层20的光致发光的波长λdpl(nm)。 产品的COD水平在工艺的中间阶段被预测,基于蓝色移位的程度λbl,蓝色移动量λbl是当活性层16照射时产生的光致发光光的波长λap1(nm) 激发光和用窗口层20产生的光发光的波长λdpl(nm)被激发光照射。
    • 4. 发明授权
    • 반도체 레이저 장치 및 그 제조방법
    • 반放射저저및및그그제조방법
    • KR100457028B1
    • 2004-11-16
    • KR1020010048139
    • 2001-08-10
    • 미쓰비시덴키 가부시키가이샤
    • 타시로요시히사카와즈젬페이니시구치하루미야기테쓰야시마아키히로
    • H01S5/30
    • H01S5/162H01S2302/00
    • In fabricating a semiconductor laser producing light with a wavelength of 770 to 810 nm, impurities are introduced into an MQW active layer near a light emitting facet of the laser to form a disordered region constituting a window layer. Pump light is applied to the window layer to generate photoluminescence whose wavelength lambda dpl (nm) is measured. A blue shift amount lambda bl (nm) is defined as the difference between the wavelength lambda apl (nm) 0f photoluminescence generated by application of pump light to the active layer on the one hand, and the wavelength lambda dpl (nm) of photoluminescence from the window layer under pump light irradiation on the other hand. The blue shift amount lambda bl is referenced during the fabrication process in order to predict catastrophic optical damage levels of semiconductor lasers.
    • 在制造产生波长为770-810nm的光的半导体激光器中,杂质被引入到激光器的发光面附近的MQW有源层中以形成构成窗口层的无序区域。 将泵浦光施加到窗口层以产生波长λdpl(nm)被测量的光致发光。 蓝色偏移量λbl(nm)被定义为一方面通过向激活层施加泵浦光而产生的光致发光的波长λapl(nm)与来自光致发光的波长λdpl(nm)之间的差 另一方面在泵浦光照射下的窗口层。 为了预测半导体激光器的灾难性光学损伤水平,在制造过程中引用蓝移量λbl。