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    • 51. 发明专利
    • Vecsel of funnel structure
    • FUNNEL结构的VECSEL
    • JP2006114915A
    • 2006-04-27
    • JP2005300330
    • 2005-10-14
    • Samsung Electronics Co Ltd三星電子株式会社Samsung Electronics Co.,Ltd.
    • KIN TAKU
    • H01S5/183G02F1/37
    • H01S5/18333H01S3/109H01S5/141H01S5/18308H01S5/18311H01S5/2059H01S5/2063H01S5/305H01S5/3054H01S5/3095
    • PROBLEM TO BE SOLVED: To provide a vertical cavity surface emitting laser (VECSEL: Vertical Cavity Surface Emitting Laser) of a funnel structure. SOLUTION: A surface emitting laser element is provided with a first substrate arranged between a first electrode layer and a first reflection layer. An active region is disposed between the first reflection layer and a second reflection layer. A current interruption layer is arranged between a second electrode layer and the active region for forming an opening. A first semiconductor layer is disposed between the second electrode layer and the second reflection layer. The second electrode layer has a through part which is substantially aligned by adjusting it to the opening part. A current injection region can be positioned in a resonator formed between the opening part and the through part of the second electrode. The current injection region facilitates electrical conduction through the resonator. COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供漏斗结构的垂直腔面发射激光器(VECSEL:Vertical Cavity Surface Emitting Laser)。 解决方案:表面发射激光元件设置有布置在第一电极层和第一反射层之间的第一衬底。 有源区设置在第一反射层和第二反射层之间。 电流中断层布置在第二电极层和用于形成开口的有源区域之间。 第一半导体层设置在第二电极层和第二反射层之间。 第二电极层具有通过将其调整到开口部而基本对齐的贯通部。 电流注入区域可以位于形成在第二电极的开口部分和贯穿部分之间的谐振器中。 电流注入区域便于通过谐振器的电导通。 版权所有(C)2006,JPO&NCIPI
    • 52. 发明专利
    • Semiconductor laser
    • 半导体激光器
    • JP2005327783A
    • 2005-11-24
    • JP2004142187
    • 2004-05-12
    • Sony Corpソニー株式会社
    • ASAZUMA YASUNORITAKIGUCHI YOSHIROHIRATA SHOJI
    • H01S5/22H01S5/00H01S5/028H01S5/10H01S5/20H01S5/223
    • H01S5/1082H01S5/0286H01S5/1014H01S5/204H01S5/2063H01S5/2072H01S5/2214H01S5/2231
    • PROBLEM TO BE SOLVED: To provide a semiconductor laser capable of effectively inhibiting the influence of return light.
      SOLUTION: Notches 51 are formed at a pair of corners on the main light emitting side end surface 11 of a protrude 50. Light emission does not occur at regions near transverse boundaries 31B, 31C of a light emission region 31, thus making it possible to inhibit the influence of the return light, even if it may enter or intrude the region. In another embodiment on the main light emitting side end surface, a reflection coefficient of a laser beam at a region near the transverse center of the light emitting region is caused to be higher those that at the regions near the transverse boundaries. Alternately, two groove like recesses are formed on the surface of a second conductivity type semiconductor layer in the same direction, and the two groove-shaped recesses near the main light emitting side end surface may have larger widths than those of groove-shaped recesses at an intermediate position between the main light emitting side end surface and an opposite side end surface. Additionally, the light emitting region near the transverse boundaries may have an inclined plane in the main light emitting side end surface, or an impurity added region may be formed on the main light emitting side end surface so that it covers corners of the main light emitting side end surface of the protruding part.
      COPYRIGHT: (C)2006,JPO&NCIPI
    • 要解决的问题:提供能够有效地抑制返回光的影响的半导体激光器。 解决方案:凹口51形成在突出部分50的主发光侧端面11上的一对角部处。在发光区域31的横向边界31B,31C附近的区域处不发光。因此, 即使可能进入或侵入该区域,也可以抑制返回光的影响。 在主发光侧端面的另一实施例中,激光束在发光区域的横向中心附近的区域的反射系数比横向边界附近的那些的反射系数更高。 或者,在相同方向的第二导电类型半导体层的表面上形成两个凹槽状凹部,并且主发光侧端面附近的两个凹槽状凹部的宽度可以比槽形凹部的宽度大 在主发光侧端面和相对侧端面之间的中间位置。 此外,横向边界附近的发光区域可以在主发光侧端面中具有倾斜平面,或者可以在主发光侧端面上形成杂质添加区域,使得其覆盖发光主发光侧的角部 突出部的侧端面。 版权所有(C)2006,JPO&NCIPI