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    • 2. 发明授权
    • Reflectivity-modulated grating mirror
    • 反射调制光栅镜
    • US08917752B2
    • 2014-12-23
    • US14111319
    • 2012-05-09
    • Ii-Sug Chung
    • Ii-Sug Chung
    • H01S5/00H01S5/183
    • H01S5/18302H01S5/0655H01S5/105H01S5/18311H01S5/18316H01S5/18325H01S5/18327H01S5/18341H01S5/18366H01S5/18386H01S5/3095
    • The invention relates to vertical cavity lasers (VCL) incorporating a reflectivity-modulated grating mirror (1) for modulating the laser output. A cavity is formed by a bottom mirror (4), an active region (3), and an outcoupling top grating mirror (1) formed by a periodic refractive index grating region in a layer structure comprising a p- and a n-doped semiconductor layer with an electrooptic material layer (12) arranged there between. The grating region comprises a grating structure formed by periodic perforations to change the refractive index periodically in directions normal to the oscillation axis. A modulated voltage (91) is applied in reverse bias between the n- and p-doped layers to modulate the refractive index of the electrooptic material layer (12) and thereby the reflectivity spectrum of the grating mirror (1). The reflectivity of the grating mirror (1) can be modulated between a reflectivity with little or no out coupling and a reflectivity with normal out coupling, wherein lasing in the VCL is supported at both the first and the second reflectivity. As the out coupling mirror modulates the output, the lasing does not need to be modulated, and the invention provides the advantage of lower power consumption at high modulation speeds.
    • 本发明涉及结合有用于调制激光输出的反射率调制光栅镜(1)的垂直腔激光器(VCL)。 空腔由底部反射镜(4),有源区域(3)和外耦合顶部光栅反射镜(1)形成,该反射镜顶部光栅反射镜(1)由层状结构中的周期性折射率光栅区形成,该层结构包括p型和n型掺杂半导体 层,其间布置有电光材料层(12)。 光栅区域包括通过周期性穿孔形成的光栅结构,以便以垂直于振荡轴线的方向周期性地改变折射率。 调制电压(91)以反向偏压施加在n和p掺杂层之间,以调制电光材料层(12)的折射率,从而调整光栅镜(1)的反射光谱。 光栅反射镜(1)的反射率可以在具有很少或没有耦合的反射率和具有正向耦合的反射率之间进行调制,其中VCL上的激光在第一和第二反射率都被支持。 由于输出耦合镜调制输出,所以不需要对激光进行调制,本发明提供了在高调制速度下较低功耗的优点。
    • 5. 发明申请
    • Semiconductor optical device having current-confined structure
    • 具有限流结构的半导体光学器件
    • US20070120206A1
    • 2007-05-31
    • US11698418
    • 2007-01-25
    • Hyun SongO KwonWon HanSang ParkJong KimJae ShinYoung Ju
    • Hyun SongO KwonWon HanSang ParkJong KimJae ShinYoung Ju
    • H01L29/82
    • H01L33/145H01S5/18308H01S5/18316H01S5/18347H01S5/3095H01S2301/176
    • Provided is a semiconductor optical device having a current-confined structure. The device includes a first semiconductor layer of a first conductivity type which is formed on a semiconductor substrate and includes one or more material layers, a second semiconductor layer which is formed on the first semiconductor layer and includes one or more material layers, and a third semiconductor layer of a second conductivity type which is formed on the second semiconductor layer and includes one or more material layers. One or more layers among the first semiconductor layer, the second semiconductor, and the third semiconductor layer have a mesa structure. A lateral portion of at least one of the material layers constituting the first semiconductor layer, the second semiconductor layer, and the third semiconductor layer is recessed, and the recess is partially or wholly filled with an oxide layer, a nitride layer or a combination of them. The semiconductor optical device having the current-confined region is mechanically reliable, highly thermally conductive, and commercially preferable and can be used in a wavelength range for optical communications.
    • 提供了具有限流结构的半导体光学器件。 该器件包括:第一导电类型的第一半导体层,其形成在半导体衬底上并且包括一个或多个材料层;第二半导体层,形成在第一半导体层上并包括一个或多个材料层;第三半导体层, 第二导电类型的半导体层,其形成在第二半导体层上并且包括一个或多个材料层。 第一半导体层,第二半导体和第三半导体层中的一层或多层具有台面结构。 构成第一半导体层,第二半导体层和第三半导体层的至少一个材料层的侧面部分被凹入,并且凹部被部分地或全部地填充有氧化物层,氮化物层或者 他们。 具有电流限制区域的半导体光学器件是机械可靠的,高导热性的,并且是商业上优选的,并且可以用于光通信的波长范围。
    • 6. 发明申请
    • Hybrid metal bonded vertical cavity surface emitting laser and fabricating method thereof
    • 混合金属结合垂直腔表面发射激光器及其制造方法
    • US20060126694A1
    • 2006-06-15
    • US11179954
    • 2005-07-12
    • O. Kyun KwonMi Ran ParkWon Seok HanJong Hee KimHyun Woo Song
    • O. Kyun KwonMi Ran ParkWon Seok HanJong Hee KimHyun Woo Song
    • H01S5/00
    • H01S5/18316H01S5/0215H01S5/0217H01S5/18369H01S5/18375H01S5/18377
    • Provided is a method of fabricating a vertical cavity surface emitting laser among semiconductor optical devices, comprising: bonding a dielectric mirror layer to an epi-structure having a mirror layer and an active layer; bonding these on a new substrate using a metal bonded method; removing the existing substrate; and fabricating a vertical cavity surface emitting laser on the new substrate. The method of fabricating the vertical cavity surface emitting laser is performed by moving and attaching a vertical cavity surface emitting laser to a new substrate using an external metallic bonding method, without electrically and optically affecting upper and lower mirrors and an active layer that constitutes the vertical cavity surface emitting laser. While using the existing method of fabricating the vertical cavity surface emitting laser, the VCSEL is fabricated by moving to a new substrate having good thermal characteristics so that good heat emission characteristics are accomplished, thus facilitating manufacture of the vertical cavity surface emitting laser having high reliability and good characteristics.
    • 提供了一种在半导体光学器件中制造垂直腔表面发射激光器的方法,包括:将介质镜层结合到具有镜层和有源层的外延结构; 使用金属键合方法将它们结合在新的基板上; 去除现有的基板; 并在新基板上制造垂直腔表面发射激光器。 垂直腔表面发射激光器的制造方法是通过使用外部金属接合方法将垂直空腔表面发射激光器移动并附着到新的衬底而进行的,而不会电和影响上镜和下反射镜以及构成垂直腔的表面发射激光的有源层 腔表面发射激光。 在使用制造垂直腔表面发射激光器的现有方法的同时,通过移动到具有良好热特性的新衬底来制造VCSEL,从而实现良好的发热特性,从而有助于制造具有高可靠性的垂直腔表面发射激光器 和良好的特点。
    • 7. 发明申请
    • VCSEL having an air gap and protective coating
    • VCSEL具有气隙和保护涂层
    • US20060013276A1
    • 2006-01-19
    • US10892983
    • 2004-07-15
    • Scott McHugo
    • Scott McHugo
    • H01S5/00
    • H01S5/1835H01S5/18313H01S5/18316H01S5/18338H01S2301/176
    • A VCSEL includes a gap in a mirror stack and a protective layer sealing an end of the gap. The gap defines a boundary of the aperture of the VCSEL without introducing the stresses that oxide regions in oxide VCSELs can cause, and the protective layer, which can be a thin dielectric layer, shields the mirror stack from environmental damage. The VCSEL can thus achieve high reliability. A fabrication process for the VCSEL forms an oxidation hole, oxidizes a portion of an aluminum-rich layer in a mirror stack of the VCSEL exposed in the hole, and then removes all or some of the resulting oxide to form the desired gap. The protective layer can then be deposited to seal an end of the gap.
    • VCSEL包括反射镜堆叠中的间隙和密封间隙的端部的保护层。 该间隙限定VCSEL的孔径的边界,而不引入氧化物VCSEL中的氧化物区域可能引起的应力,并且可以是薄介电层的保护层屏蔽反射镜叠层免受环境破坏。 因此,VCSEL可以实现高可靠性。 用于VCSEL的制造工艺形成氧化孔,氧化暴露在孔中的VCSEL的反射镜叠层中的富铝层的一部分,然后去除所有或一些所得到的氧化物以形成所需的间隙。 然后可以沉积保护层以密封间隙的一端。