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    • 25. 发明申请
    • SEMICONDUCTOR LASER AND OPTICAL SEMICONDUCTOR DEVICE
    • 半导体激光器和光学半导体器件
    • US20150155687A1
    • 2015-06-04
    • US14589412
    • 2015-01-05
    • Oclaro Japan, Inc.
    • Kouji NAKAHARAYuki WAKAYAMA
    • H01S5/12H01S5/028H01S5/343
    • H01S5/1215H01S5/0014H01S5/0287H01S5/06213H01S5/12H01S5/124H01S5/1246H01S5/164H01S5/34313
    • In the semiconductor laser including a diffraction grating in which a first diffraction grating region with a first pitch, a second diffraction grating region with a second pitch and a third diffraction grating region with the first pitch, an anti-reflection film coated on an end facet to the light-emitting side, and a reflection film coated on an opposite end facet, the first diffraction grating region is greater than the third diffraction grating region, and the second diffraction grating region is formed, in such a manner that phases of the first and third diffraction grating regions are shifted in a range of equal to or more than 0.6 π to equal to or less than 0.9 π, phases are successive on a boundary between the first and second diffraction grating regions and the phases are successive on a boundary between the second and third diffraction grating regions.
    • 在包括具有第一间距的第一衍射光栅区域,具有第二间距的第二衍射光栅区域和具有第一间距的第三衍射光栅区域的衍射光栅的半导体激光器中,涂覆有端面的抗反射膜 并且反射膜涂覆在相对端面上,第一衍射光栅区域大于第三衍射光栅区域,并且形成第二衍射光栅区域,使得第一衍射光栅区域的第一 并且第三衍射光栅区域在等于或大于0.6& 等于或小于0.9&pgr,相位在第一和第二衍射光栅区域之间的边界上连续,并且相位在第二和第三衍射光栅区域之间的边界上是连续的。
    • 26. 发明申请
    • Edge-Emitting Semiconductor Laser
    • 边缘发射半导体激光器
    • US20140133505A1
    • 2014-05-15
    • US14118819
    • 2012-06-08
    • Hans Lindberg
    • Hans Lindberg
    • H01S5/10
    • H01S5/1003H01S5/026H01S5/0425H01S5/0654H01S5/1032H01S5/1203H01S5/1228H01S5/1246H01S5/4031H01S5/4087
    • An edge-emitting semiconductor laser includes a first waveguide layer, into which an active layer that generates laser radiation is embedded. The laser also includes a second waveguide layer, into which no active layer is embedded. The laser radiation generated in the active layer forms a standing wave, which has respective intensity maxima in the first waveguide layer and corresponding intensity minima in the second waveguide layer and respective intensity minima in the first waveguide layer and corresponding intensity maxima in the second waveguide layer at periodic intervals in a beam direction of the semiconductor laser. An at least regionally periodic contact structure is arranged at a surface of the edge-emitting semiconductor laser. A period length of the contact structure is equal to a period length of the standing wave, such that the semiconductor laser has an emission wavelength that is set by the period length of the contact structure.
    • 边缘发射半导体激光器包括嵌入有产生激光辐射的有源层的第一波导层。 该激光器还包括其中没有嵌入有源层的第二波导层。 在有源层中产生的激光辐射形成驻波,其在第一波导层中具有相应的强度最大值,并且在第二波导层中具有相应的强度最小值,并且在第一波导层中具有相应的强度最小值,并且在第二波导层中具有相应的强度最大值 在半导体激光器的光束方向上的周期性间隔。 在边缘发射半导体激光器的表面设置至少区域性周期性接触结构。 接触结构的周期长度等于驻波的周期长度,使得半导体激光器具有由接触结构的周期长度设定的发射波长。
    • 28. 发明授权
    • Laser device, laser module, semiconductor laser and fabrication method of semiconductor laser
    • 激光器件,激光器模块,半导体激光器和半导体激光器的制造方法
    • US08304267B2
    • 2012-11-06
    • US12574988
    • 2009-10-07
    • Takuya Fujii
    • Takuya Fujii
    • H01L33/60H01S5/187
    • H01S5/125H01S5/0265H01S5/0287H01S5/0425H01S5/0612H01S5/06256H01S5/1057H01S5/106H01S5/1064H01S5/1209H01S5/1212H01S5/1221H01S5/1231H01S5/124H01S5/1246
    • A semiconductor laser has first and second diffractive grating regions. The first diffractive grating region has segments, has a gain, and has first discrete peaks of a reflection spectrum. The second diffractive grating region has segments combined to each other, and has second discrete peaks of a reflection spectrum. Each segment has a diffractive grating and a space region. Pitches of the diffractive grating are substantially equal to each other. A wavelength interval of the second discrete peaks is different from that of the first discrete peaks. A part of a given peak of the first discrete peaks is overlapped with that of the second discrete peaks when a relationship between the given peaks of the first discrete peaks and the second discrete peaks changes. A first segment located in the first diffractive grating region or the second diffractive grating region has an optical length shorter or longer than the other segments of the first diffractive grating region and the second diffractive grating region by odd multiple of half of the pitch of the diffractive grating of the first diffractive grating region.
    • 半导体激光器具有第一和第二衍射光栅区域。 第一衍射光栅区具有段,具有增益,并且具有反射光谱的第一离散峰。 第二衍射光栅区域具有彼此组合的段,并具有反射光谱的第二离散峰。 每个段具有衍射光栅和空间区域。 衍射光栅的间距基本相等。 第二离散峰的波长间隔与第一离散峰的波长间隔不同。 当第一离散峰和第二离散峰的给定峰之间的关系发生变化时,第一离散峰的给定峰的一部分与第二离散峰的一部分重叠。 位于第一衍射光栅区域或第二衍射光栅区域中的第一段具有比第一衍射光栅区域和第二衍射光栅区域的其他区段更短或更长的光学长度,其中衍射的间距的一半的奇数倍 第一衍射光栅区域的光栅。
    • 29. 发明申请
    • LASER DEVICE, LASER MODULE, SEMICONDUCTOR LASER AND FABRICATION METHOD OF SEMICONDUCTOR LASER
    • 激光器件,激光器模块,半导体激光器和半导体激光器的制造方法
    • US20100022044A1
    • 2010-01-28
    • US12574988
    • 2009-10-07
    • Takuya FUJII
    • Takuya FUJII
    • H01L21/30
    • H01S5/125H01S5/0265H01S5/0287H01S5/0425H01S5/0612H01S5/06256H01S5/1057H01S5/106H01S5/1064H01S5/1209H01S5/1212H01S5/1221H01S5/1231H01S5/124H01S5/1246
    • A semiconductor laser has first and second diffractive grating regions. The first diffractive grating region has segments, has a gain, and has first discrete peaks of a reflection spectrum. The second diffractive grating region has segments combined to each other, and has second discrete peaks of a reflection spectrum. Each segment has a diffractive grating and a space region. Pitches of the diffractive grating are substantially equal to each other. A wavelength interval of the second discrete peaks is different from that of the first discrete peaks. A part of a given peak of the first discrete peaks is overlapped with that of the second discrete peaks when a relationship between the given peaks of the first discrete peaks and the second discrete peaks changes. A first segment located in the first diffractive grating region or the second diffractive grating region has an optical length shorter or longer than the other segments of the first diffractive grating region and the second diffractive grating region by odd multiple of half of the pitch of the diffractive grating of the first diffractive grating region.
    • 半导体激光器具有第一和第二衍射光栅区域。 第一衍射光栅区具有段,具有增益,并且具有反射光谱的第一离散峰。 第二衍射光栅区域具有彼此组合的段,并具有反射光谱的第二离散峰。 每个段具有衍射光栅和空间区域。 衍射光栅的间距基本相等。 第二离散峰的波长间隔与第一离散峰的波长间隔不同。 当第一离散峰和第二离散峰的给定峰之间的关系发生变化时,第一离散峰的给定峰的一部分与第二离散峰的一部分重叠。 位于第一衍射光栅区域或第二衍射光栅区域中的第一段具有比第一衍射光栅区域和第二衍射光栅区域的其他区段更短或更长的光学长度,其中衍射的间距的一半的奇数倍 第一衍射光栅区域的光栅。