公开(公告)号：US20090285255A1

公开(公告)日：2009-11-19

申请号：US12225194

申请日：2007-03-20

申请人： Kyosuke Sakai ,  Eiji Miyai ,  Susumu Noda ,  Dai Ohnishi ,  Wataru Kunishi

发明人： Kyosuke Sakai ,  Eiji Miyai ,  Susumu Noda ,  Dai Ohnishi ,  Wataru Kunishi

IPC分类号： H01S5/183

CPC分类号： H01S5/18 ,  B82Y20/00 ,  G11B7/127 ,  H01S5/0425 ,  H01S5/105 ,  H01S5/125 ,  H01S5/2027 ,  H01S5/34313 ,  H01S2301/14 ,  H01S2301/18

摘要： An objective of the present invention is to provide a surface emitting laser capable of selectively generating a laser oscillation in the fundamental mode and thereby emitting a single-wavelength laser light. In a surface emitting laser including an active layer and a two-dimensional photonic crystal provided on one side of the active layer, a reflector 45 or 46 is provided at least at a portion of the circumference of the two-dimensional photonic crystal. The reflector has a reflectance distribution in which the reflectance has a maximum value at a position where the amplitude envelope of the fundamental mode of an internal resonance light created within the two-dimensional photonic crystal. This design strengthens the fundamental mode while suppressing the second mode, thus enabling the laser oscillation in the fundamental mode to be selectively obtained, so that a single-wavelength laser light can be emitted.

摘要翻译： 本发明的目的是提供一种能够选择性地在基模中产生激光振荡并从而发射单波长激光的表面发射激光器。 在包括有源层和设置在有源层的一侧的二维光子晶体的表面发射激光器中，至少在二维光子晶体的圆周的一部分处提供反射器45或46。 反射器具有反射率分布，其中反射率在二维光子晶体内产生的内部共振光的基模的幅度包络的位置处具有最大值。 该设计在抑制第二模式的同时加强基本模式，从而能够选择性地获得基模中的激光振荡，从而可以发射单波长激光。

公开(公告)号：US20080145012A1

公开(公告)日：2008-06-19

申请号：US12004029

申请日：2007-12-20

申请人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

发明人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

IPC分类号： G02B6/10

CPC分类号： G02B6/13 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225

摘要： The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.

摘要翻译： 本发明旨在提供具有高水平机械强度并用作高效率谐振器的二维光子晶体。 根据本发明的二维光子晶体包括平坦层31，覆层32位于其下方。 在板坯层31中，具有不同于板坯层31的折射率的区域35循环地布置以产生二维光子晶体。 区域35的循环布置的一部分被省略以形成点状缺陷36。 该缺陷36用作特定波长的光谐振的谐振器。 在包层32的预定范围上形成面向点状缺陷36的空气桥腔37。 在这种结构中，除了形成空气桥隔间37的范围之外，包覆层32支撑板层31。 因此，二维光子晶体具有高水平的机械强度。 点状缺陷36之下的空气桥空间37的存在使得容易通过板状层31和空气之间的折射率差来限制点状缺陷36处的光。 因此，点状缺陷36用作高性能谐振器。

公开(公告)号：US09130348B2

公开(公告)日：2015-09-08

申请号：US13192852

申请日：2011-07-28

申请人： Susumu Noda ,  Takui Sakaguchi ,  Kazuya Nagase ,  Wataru Kunishi ,  Eiji Miyai ,  Yoshikatsu Miura ,  Dai Ohnishi

发明人： Susumu Noda ,  Takui Sakaguchi ,  Kazuya Nagase ,  Wataru Kunishi ,  Eiji Miyai ,  Yoshikatsu Miura ,  Dai Ohnishi

IPC分类号： H01S5/00 ,  H01S5/12 ,  H01S5/10 ,  H01S5/187

CPC分类号： H01S5/105 ,  H01S5/1231 ,  H01S5/18316 ,  H01S5/18319 ,  H01S5/187 ,  H01S5/3013 ,  H01S2301/17

摘要： A two-dimensional photonic crystal laser according to the present invention includes a two-dimensional photonic crystal layer 15 having a base body made of AlαGa1-αAs (0

摘要翻译： 根据本发明的二维光子晶体激光器包括具有由AlαGa1-αAs（0 <α<1）或（Al＆bgr; Ga1-bgr））γIn1-γP（...）形成的基体的二维光子晶体层15 0 <=＆bgr; <1,0 <γ<1），周期性地布置有修正的折射率区域（空气孔）151，以及通过外延法在二维光子晶体层15上形成的外延生长层16。 由于AlαGa1-αAs和（Al＆bgr; Ga1-bgr）γIn1-γP即使在高温下也是固体，所以在形成外延生长层16的过程中，空气孔151不会变形， 作为谐振器的三维光子晶体层15可以保持在高水平。

公开(公告)号：US20120243569A1

公开(公告)日：2012-09-27

申请号：US13429147

申请日：2012-03-23

申请人： Yoshinori TANAKA ,  Eiji MIYAI ,  Dai OHNISHI

发明人： Yoshinori TANAKA ,  Eiji MIYAI ,  Dai OHNISHI

IPC分类号： H01S5/02

CPC分类号： H01S5/4031 ,  H01S5/0425 ,  H01S5/209 ,  H01S5/2231 ,  H01S2301/17 ,  H01S2301/176

摘要： A multi-beam semiconductor laser apparatus includes three or more stripe semiconductor laser emission units which are arranged on a substrate, isolation grooves which separate the semiconductor laser emission units from each other, and pad electrodes which are disposed on outer sides of the outermost semiconductor laser emission units. The isolation grooves are formed between the pad electrodes and the semiconductor laser emission units adjacent to the pad electrodes and between adjacent semiconductor laser emission units. A distance between two isolation grooves formed on outer sides of the outermost semiconductor laser light emission units is smaller than a distance between two isolation grooves formed on both sides of inner ones of the semiconductor laser light emission units.

摘要翻译： 多光束半导体激光装置包括：三个以上的条状半导体激光发射单元，其设置在基板上，将半导体激光发射单元彼此分隔开的隔离沟槽和设置在最外侧半导体激光器的外侧的焊盘电极 排放单位。 隔离槽形成在焊盘电极与邻近焊盘电极的相邻半导体激光发射单元之间的半导体激光发射单元之间。 形成在最外侧半导体激光发射单元的外侧的两个隔离槽之间的距离小于形成在半导体激光发射单元的内侧两侧的两个隔离槽之间的距离。

公开(公告)号：US07509014B2

公开(公告)日：2009-03-24

申请号：US12004029

申请日：2007-12-20

申请人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

发明人： Ranko Hatsuda ,  Susumu Noda ,  Takashi Asano ,  Yoshinori Tanaka ,  Eiji Miyai

IPC分类号： G02B6/00 ,  G02B6/10

CPC分类号： G02B6/13 ,  B82Y20/00 ,  G02B6/12004 ,  G02B6/12007 ,  G02B6/1225

摘要： The present invention intends to provide a two-dimensional photonic crystal having a high level of mechanical strength and functioning as a high-efficiency resonator. The two-dimensional photonic crystal according to the present invention includes a slab layer 31 under which a clad layer 32 is located. In the slab layer 31, areas 35 having a refractive index different from that of the slab layer 31 are cyclically arranged to create a two-dimensional photonic crystal. A portion of the cyclic arrangement of the areas 35 are omitted to form a point-like defect 36. This defect 36 functions as a resonator at which a specific wavelength of light resonates. An air-bridge cavity 37 facing the point-like defect 36 is formed over a predetermined range of the clad layer 32. In this construction, the clad layer 32 supports the slab layer 31 except for the range over which the air-bridge space 37 is formed. Therefore, the two-dimensional photonic crystal has a high level of mechanical strength. The presence of the air-bridge space 37 under the point-like defect 36 makes it easy to confine light at the point-like defect 36 by the difference in the refractive index between the slab layer 31 and the air. Thus, the point-like defect 36 functions as a high-performance resonator.

摘要翻译： 本发明旨在提供具有高水平机械强度并用作高效率谐振器的二维光子晶体。 根据本发明的二维光子晶体包括平坦层31，覆层32位于其下方。 在板坯层31中，具有不同于板坯层31的折射率的区域35循环地布置以产生二维光子晶体。 区域35的循环布置的一部分被省略以形成点状缺陷36.该缺陷36用作特定波长的光谐振的谐振器。 在包覆层32的预定范围上形成面向点状缺陷36的空气桥腔37.在该结构中，包覆层32支撑板层31，除了空气桥空间37 形成了。 因此，二维光子晶体具有高水平的机械强度。 点状缺陷36之下的空气桥空间37的存在使得容易通过板状层31和空气之间的折射率差来限制点状缺陷36处的光。 因此，点状缺陷36用作高性能谐振器。

公开(公告)号：US20070075318A1

公开(公告)日：2007-04-05

申请号：US10550596

申请日：2004-03-23

申请人： Susumu Noda ,  Mitsuru Yokoyama ,  Koujirou Sekine ,  Eiji Miyai

发明人： Susumu Noda ,  Mitsuru Yokoyama ,  Koujirou Sekine ,  Eiji Miyai

IPC分类号： H01L33/00

CPC分类号： H01S5/34313 ,  B82Y20/00 ,  G02B6/1225 ,  H01S5/105 ,  H01S5/1228 ,  H01S5/34373

摘要： A two-dimensional photonic crystal surface-emitting laser having a photonic crystal (20) in which a photonic crystal periodic structure (21) is located in or near an active layer (first medium) (12) which emits light when carriers are injected thereto. The photonic crystal periodic structure (21) comprises a second medium with a refractive index different from that of the active layer scattered in two-dimensional periodic array. The photonic crystal periodic structure is of a square lattice structure or a triangular lattice structure which has translation symmetry but does not have rotation symmetry. Alternatively, the phtonic crystal periodic structure is of a square lattice structure or a rectangular lattice structure which is classified into pl, pm, pg or cm according to the two-dimensional pattern classification method. It is the most desirable that the lattice structure is composed of triangular lattice points.

摘要翻译： 一种具有光子晶体（20）的二维光子晶体表面发射激光器，其中光子晶体周期结构（21）位于在载体被注入时发光的有源层（第一介质）（12）中或其附近 。 光子晶体周期结构（21）包括具有与二维周期性阵列中散射的有源层的折射率不同的折射率的第二介质。 光子晶体周期结构具有平方晶格结构或具有平移对称但不具有旋转对称性的三角形晶格结构。 或者，根据二维图案分类方法，所述晶体晶体周期结构为方形晶格结构或矩形晶格结构，其分为p1，pm，pg或cm。 最理想的是，晶格结构由三角形点阵组成。

公开(公告)号：US08503498B2

公开(公告)日：2013-08-06

申请号：US13429147

申请日：2012-03-23

申请人： Yoshinori Tanaka ,  Eiji Miyai ,  Dai Ohnishi

发明人： Yoshinori Tanaka ,  Eiji Miyai ,  Dai Ohnishi

IPC分类号： H01S5/00

CPC分类号： H01S5/4031 ,  H01S5/0425 ,  H01S5/209 ,  H01S5/2231 ,  H01S2301/17 ,  H01S2301/176

摘要： A multi-beam semiconductor laser apparatus includes three or more stripe semiconductor laser emission units which are arranged on a substrate, isolation grooves which separate the semiconductor laser emission units from each other, and pad electrodes which are disposed on outer sides of the outermost semiconductor laser emission units. The isolation grooves are formed between the pad electrodes and the semiconductor laser emission units adjacent to the pad electrodes and between adjacent semiconductor laser emission units. A distance between two isolation grooves formed on outer sides of the outermost semiconductor laser light emission units is smaller than a distance between two isolation grooves formed on both sides of inner ones of the semiconductor laser light emission units.

摘要翻译： 多光束半导体激光装置包括：三个以上的条状半导体激光发射单元，其设置在基板上，将半导体激光发射单元彼此分隔开的隔离沟槽和设置在最外侧半导体激光器的外侧的焊盘电极 排放单位。 隔离槽形成在焊盘电极与邻近焊盘电极的相邻半导体激光发射单元之间的半导体激光发射单元之间。 形成在最外侧半导体激光发射单元的外侧的两个隔离槽之间的距离小于形成在半导体激光发射单元的内侧两侧的两个隔离槽之间的距离。

公开(公告)号：US08300672B2

公开(公告)日：2012-10-30

申请号：US13061337

申请日：2009-08-18

申请人： Susumu Noda ,  Seita Iwahashi ,  Yoshitaka Kurosaka ,  Kyosuke Sakai ,  Eiji Miyai ,  Dai Ohnishi ,  Wataru Kunishi

发明人： Susumu Noda ,  Seita Iwahashi ,  Yoshitaka Kurosaka ,  Kyosuke Sakai ,  Eiji Miyai ,  Dai Ohnishi ,  Wataru Kunishi

IPC分类号： H01S5/00

CPC分类号： H01S5/18 ,  H01S5/105 ,  H01S5/187

摘要： A two-dimensional photonic crystal laser light is provided. The two-dimensional photonic crystal laser includes a two-dimensional photonic crystal made of a plate-shaped member provided with a periodic arrangement of identically-shaped modified refractive index areas having a refractive index different from that of the plate-shaped member; and an active layer provided on one side of the two-dimensional photonic crystal. The modified refractive index areas are arranged at lattice points of a lattice with a same period at least in two directions; each modified refractive index area is shaped so that a feedback strength is different with respect to directions of two primitive lattice vectors of the lattice; the two-dimensional photonic crystal has a periodic structure of a supercell, which contains a plurality of lattice points; and the sum of the feedback strengths by all modified refractive index areas in the supercell is identical in each direction of the two primitive lattice vectors.

摘要翻译： 提供二维光子晶体激光。 二维光子晶体激光器包括由板状构件制成的二维光子晶体，该二维光子晶体具有折射率不同于板状构件的相同形状的改性折射率区域的周期性布置; 以及设置在二维光子晶体的一侧上的有源层。 修饰的折射率区域至少在两个方向上布置在具有相同周期的格子的格子点处; 每个修改的折射率区域被成形为使得反馈强度相对于晶格的两个原始晶格矢量的方向是不同的; 二维光子晶体具有包含多个格点的超单元的周期性结构; 并且超级单元中的所有修改的折射率区域的反馈强度的总和在两个原始格子向量的每个方向上是相同的。

公开(公告)号：US20110188526A1

公开(公告)日：2011-08-04

申请号：US13061337

申请日：2009-08-18

申请人： Susumu Noda ,  Seita Iwahashi ,  Yoshitaka Kurosaka ,  Kyosuke Sakai ,  Eiji Miyai ,  Dai Ohnishi ,  Wataru Kunishi

发明人： Susumu Noda ,  Seita Iwahashi ,  Yoshitaka Kurosaka ,  Kyosuke Sakai ,  Eiji Miyai ,  Dai Ohnishi ,  Wataru Kunishi

IPC分类号： H01S3/16

CPC分类号： H01S5/18 ,  H01S5/105 ,  H01S5/187

摘要： A two-dimensional photonic crystal laser light is provided. The two-dimensional photonic crystal laser includes a two-dimensional photonic crystal made of a plate-shaped member provided with a periodic arrangement of identically-shaped modified refractive index areas having a refractive index different from that of the plate-shaped member; and an active layer provided on one side of the two-dimensional photonic crystal. The modified refractive index areas are arranged at lattice points of a lattice with a same period at least in two directions; each modified refractive index area is shaped so that a feedback strength is different with respect to directions of two primitive lattice vectors of the lattice; the two-dimensional photonic crystal has a periodic structure of a supercell, which contains a plurality of lattice points; and the sum of the feedback strengths by all modified refractive index areas in the supercell is identical in each direction of the two primitive lattice vectors.

摘要翻译： 提供二维光子晶体激光。 二维光子晶体激光器包括由板状构件制成的二维光子晶体，该二维光子晶体具有折射率不同于板状构件的相同形状的改性折射率区域的周期性布置; 以及设置在二维光子晶体的一侧上的有源层。 修饰的折射率区域至少在两个方向上布置在具有相同周期的格子的格子点处; 每个修改的折射率区域被成形为使得反馈强度相对于晶格的两个原始晶格矢量的方向是不同的; 二维光子晶体具有包含多个格点的超单元的周期性结构; 并且超级单元中的所有修改的折射率区域的反馈强度的总和在两个原始格子向量的每个方向上是相同的。

公开(公告)号：US20090175304A1

公开(公告)日：2009-07-09

申请号：US12225530

申请日：2007-03-30

申请人： Susumu Noda ,  Yoshitaka Kurosaka ,  Eiji Miyai ,  Dai Ohnishi ,  Wataru Kunishi

发明人： Susumu Noda ,  Yoshitaka Kurosaka ,  Eiji Miyai ,  Dai Ohnishi ,  Wataru Kunishi

IPC分类号： H01S5/00

CPC分类号： H01S5/183 ,  H01S5/105

摘要： A two-dimensional photonic crystal surface emitting laser light source according to the present invention includes a two-dimensional photonic crystal made of a plate-shaped body material provided with a periodic arrangement of identically-shaped holes 242A and an active layer provided on one side of the two-dimensional photonic crystal. The hole 242A is not located on a first half-line 251 extending from the gravity center G1 of the hole in a direction within the plane of the two-dimensional photonic crystal, while the hole 242A is located at least on a portion of a second half-line 252 extending from the gravity center G1 in the direction opposite to the first half-line 251. Injecting electric charges into the active layer generates light, which creates an electric field that encircles the gravity center G1 within the two-dimensional photonic crystal. For a given point on the second half-line 252 at which the hole 242A is located, there is no hole at a point that is symmetrical to the aforementioned point with respect to the gravity center G1, so that there is a difference in the refractive index between the two points. Thus, the electric field vectors at the two points are prevented from canceling each other due to destructive interference, so that the resultant laser light is stronger than conventional examples.

摘要翻译： 根据本发明的二维光子晶体表面发射激光光源包括由板状主体材料制成的二维光子晶体，该二维光子晶体设置有相同形状的孔242A和设置在一侧的活性层的周期性排列 的二维光子晶体。 孔242A不位于从二维光子晶体的平面内的孔的重心G1延伸的第一半线251上，而孔242A至少位于二次光子晶体的一部分上 从重心G1向与第一半线251相反的方向延伸的半线252.向有源层注入电荷产生光，其产生围绕二维光子晶体内的重心G1的电场 。 对于孔242A所在的第二半线252上的给定点，在相对于重心G1与上述点对称的点处没有孔，使得折射率 两点之间的指标。 因此，由于相消干涉，防止两点处的电场矢量彼此抵消，使得所得到的激光比传统例子更强。