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    • 3. 发明授权
    • Method of manufacturing semiconductor laser
    • 制造半导体激光器的方法
    • US5143863A
    • 1992-09-01
    • US683181
    • 1991-04-09
    • Kiyoshi OhnakaMototsugu Ogura
    • Kiyoshi OhnakaMototsugu Ogura
    • H01S5/22H01S5/223H01S5/227H01S5/323
    • H01S5/227H01S5/2231H01S5/2205H01S5/2209H01S5/221H01S5/2211H01S5/2214H01S5/2216H01S5/2275H01S5/32325
    • According to the structure of the invention, an AlGaInP cladding layer of one conductive type, an active layer, and an AlGaInP cladding layer of other conductive type greater in thickness in stripes are formed on a GaAs substrate, and an insulating film, AlGaInP or amorphous layer smaller in refractive index than the AlGaInP cladding layer are formed at both sides of the stripes, wherein the light can be confined and guided also in the direction parallel to the active layer, and the light can be index-guided both in the direction parallel to the active layer and in the direction vertical thereto, so that a laser having an extremely smaller astigmatism may be presented. What is more, the current blocking layer disposed at the outer side of the insulating film, AlGaInP or amorphous layer is high in thermal conductivity, and the heat generated in the vicinity of the active layer may be efficiently released.The invention also relates to the method of fabricating the laser composed in such structure.
    • 根据本发明的结构,在GaAs衬底上形成厚度较大的一种导电类型,有源层和其它导电类型的AlGaInP包层的AlGaInP包层,并且将绝缘膜AlGaInP或非晶 在条纹的两侧形成折射率比AlGaInP包覆层小的层,其中光可以在与有源层平行的方向上被限制和引导,并且光可以沿着平行的方向被引导引导 到有源层和垂直于其的方向,使得可以呈现具有非常小的散光的激光。 此外,设置在绝缘膜的外侧的电流阻挡层AlGaInP或非晶层的导热性高,并且可以有效地释放在活性层附近产生的热量。 本发明还涉及以这种结构构成的激光器的制造方法。
    • 6. 发明授权
    • Semiconductor laser device capable of emitting laser beams of different
wavelengths
    • 能够发射不同波长的激光束的半导体激光器件
    • US4747110A
    • 1988-05-24
    • US829090
    • 1986-02-13
    • Yasuhito TakahashiMototsugu OguraNobuyasu Hase
    • Yasuhito TakahashiMototsugu OguraNobuyasu Hase
    • H01S5/223H01S5/32H01S5/34H01S5/40H01S3/19
    • B82Y20/00H01S5/34H01S5/4031H01S5/2238H01S5/3203H01S5/3413H01S5/4037H01S5/4087
    • A semiconductor laser device has a compound semiconductor substrate, a first semiconductor layer disposed on the compound semiconductor substrate, and a second semiconductor layer disposed on the first semiconductor layer. The second semiconductor layer has at least three thin film layers of at least two different semiconductor compounds, the film layers being laminated with the different semiconductor compound layers alternating. An electrically isolating region extends through the thickness of the second semiconductor layer and electrically divides the second semiconductor layer into first and second portions which differ in quantum level from each other. A third semiconductor layer is disposed on the second semiconductor layer, and first and second electrodes are disposed on the third semiconductor layer in positions for supplying current to the first and second portions, respectively, and a third electrode is disposed on the substrate at the surface thereof opposite to the first and second electrodes. When a voltage is applied between the third and first electrodes and the third and second electrodes, laser beams having different wavelengths are emitted from the first and second portions of the second semiconductor layer, respectively.
    • 半导体激光器件具有化合物半导体衬底,设置在化合物半导体衬底上的第一半导体层和设置在第一半导体层上的第二半导体层。 第二半导体层具有至少三个至少两个不同半导体化合物的薄膜层,膜层与不同的半导体化合物层交替层叠。 电绝缘区域延伸穿过第二半导体层的厚度,并且将第二半导体层电分离成彼此不同的量子水平的第一和第二部分。 第三半导体层设置在第二半导体层上,并且第一和第二电极分别设置在第三半导体层上用于向第一和第二部分提供电流的位置,第三电极设置在基板上的表面 其与第一和第二电极相对。 当在第三和第一电极和第三和第二电极之间施加电压时,分别从第二半导体层的第一和第二部分发射具有不同波长的激光束。
    • 10. 发明授权
    • Semiconductor laser
    • 半导体激光器
    • US5029175A
    • 1991-07-02
    • US437934
    • 1989-11-17
    • Kiyoshi OhnakaMototsugu Ogura
    • Kiyoshi OhnakaMototsugu Ogura
    • H01S5/22H01S5/223H01S5/227H01S5/323
    • H01S5/227H01S5/2231H01S5/2205H01S5/2209H01S5/221H01S5/2211H01S5/2214H01S5/2216H01S5/2275H01S5/32325
    • In a semiconductor laser, an AlGaInP cladding layer of one conductive type, an active layer, and an AlGaInP cladding layer of other conductive type greater in thickness in stripes are formed on a GaAs substrate, and an insulating film, AlGaInP or amorphous layer smaller in refractive index than the AlGaInP cladding layer are formed at both sides of the stripes, wherein the light can be confined and guided also in the direction parallel to the active layer, and the light can be index-guided both in the direction parallel to the active layer and in the direction vertical thereto, so that a laser having an extremely smaller astigmatism may be presented. In addition, the current blocking layer disposed at the outer side of the insulating film, AlGaInP or amorphous layer is high in thermal conductivity, and the heat generated in the vicinity of the active layer may be efficiently released.
    • 在半导体激光器中,在GaAs衬底上形成厚度更大的导体类型,有源层和其它导电类型的AlGaInP包层的AlGaInP包覆层,并且在GaAs衬底上形成绝缘膜,AlGaInP或非晶层 折射率比AlGaInP包层形成在条纹的两侧,其中光可以在平行于有源层的方向上被限制和引导,并且光可以在平行于活动的方向上被引导引导 层并且在垂直于其的方向上,使得可以呈现具有非常小的散光的激光。 此外,设置在绝缘膜的外侧的电流阻挡层AlGaInP或非晶层的导热性高,并且可以有效地释放在活性层附近产生的热量。