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    • 7. 发明公开
    • 반도체 레이저장치
    • 半导体激光器件
    • KR1020070116729A
    • 2007-12-11
    • KR1020070054823
    • 2007-06-05
    • 미쓰비시덴키 가부시키가이샤
    • 쿠니츠구야스히로마쓰오카히로마스
    • H01S3/10
    • H01S5/028H01S5/4087
    • A semiconductor laser device is provided to decrease wavelength-dependence of reflection rate as obtaining high reflection rate in two wavelengths. A semiconductor laser device radiates at two wavelengths(lambda 1, lambda 2). A high reflective film(10) constituted with more than 7 layers from a first layer to a final layer starting from a laser chip, on a facet behind the laser chip. The high reflective film includes at least one random layer with optical film thickness of (n x lambda/2) where n is a natural number and lambda is (lambda 1 + lambda 2)/2. The optical film thickness of a layer except the random layer and the final layer of the high reflective film is (2n+1) x lambda/4. The optical film thickness of the final layer of the high reflective film is n x lambda/4 where n is a natural number.
    • 提供一种半导体激光器件,以在两个波长中获得高反射率来降低反射率的波长依赖性。 半导体激光器件以两个波长(λ1,λ2)辐射。 在激光芯片后面的小面上从激光芯片开始从第一层到最后层超过7层构成的高反射膜(10)。 高反射膜包括至少一个光学膜厚度为(n×λ/ 2)的随机层,其中n是自然数,λ是(λ1 +λ2)/ 2。 除了随机层之外的层和高反射膜的最终层的光学膜厚度为(2n + 1)×λ/ 4。 高反射膜的最终层的光学膜厚度为n×λ/ 4,其中n为自然数。
    • 9. 发明公开
    • 반도체 레이저장치
    • 半导体激光器件
    • KR1020070026271A
    • 2007-03-08
    • KR1020060084991
    • 2006-09-05
    • 미쓰비시덴키 가부시키가이샤
    • 마쓰오카히로마스나카가와야스유키시가토시히코
    • H01S5/00
    • H01S5/028H01S5/0287
    • A semiconductor laser device is provided to maintain a reflection factor of a reflection factor control film constantly by using a surface protection film arranged on the reflection factor control film. In a semiconductor laser device, a semiconductor laser main body(36) has a front section(24) and a rear section(26). The front section(24) is a main light emission section. The rear section(26) faces the front section(24). The semiconductor laser main body(36) has a resonator(22) between the two sections(24,26). A reflection factor control film is arranged on the front or rear section(24,26) of the semiconductor laser main body(36). The reflection factor control film is a multi-layer film of a first dielectric film having first heat conductivity. The reflection factor control film is arranged on a layer separated from the front section(24) or the rear section(26). A surface protection film is arranged on the first dielectric film of the reflection factor control film. A thickness of the surface protection film is less than 20 nm. The surface protection film has second heat conductivity different from the first heat conductivity.
    • 提供半导体激光装置,通过使用布置在反射因子控制膜上的表面保护膜来恒定地维持反射系数控制膜的反射系数。 在半导体激光装置中,半导体激光器主体(36)具有前部(24)和后部(26)。 前部(24)是主发光部。 后部(26)面向前部(24)。 半导体激光器主体(36)在两个部分(24,26)之间具有谐振器(22)。 反射系数控制膜设置在半导体激光器主体(36)的前部或后部(24,26)上。 反射因子控制膜是具有第一导热性的第一电介质膜的多层膜。 反射系数控制膜设置在与前部(24)或后部(26)分离的层上。 表面保护膜设置在反射因子控制膜的第一介电膜上。 表面保护膜的厚度小于20nm。 表面保护膜具有与第一导热性不同的第二导热性。