公开(公告)号：US08041164B2

公开(公告)日：2011-10-18

申请号：US12666732

申请日：2008-06-04

申请人： Per Granestrand ,  Jan-Olof Wesstrom ,  Dave Adams

发明人： Per Granestrand ,  Jan-Olof Wesstrom ,  Dave Adams

IPC分类号： G02B6/26

CPC分类号： G02B6/1228 ,  B82Y20/00 ,  G02B6/1223 ,  Y10T29/49016

摘要： A transition part (1) between two optical waveguides (2,3) with different index contrast is characterised in that the transition part (1) includes a non-adiabatically up-tapered longitudinal section (8), and in that the transition (7) between the two waveguides (2,3) is arranged after the up-tapered longitudinal section (8) as seen along the main direction (L) of propagation of the light. A method of manufacturing the transition part is also described.

摘要翻译： 具有不同折射率对比度的两个光波导（2,3）之间的过渡部分（1）的特征在于，过渡部分（1）包括非绝热的上锥形纵向部分（8），并且转变（7） ）沿着沿着光的传播的主方向（L）观察的上升锥形纵向部分（8）之后布置在两个波导（2,3）之间。 还描述了制造过渡部分的方法。

公开(公告)号：US20110007995A1

公开(公告)日：2011-01-13

申请号：US12666400

申请日：2008-06-10

申请人： Per Granestrand ,  Jan-OLof Wesstrom ,  Dave Adams

发明人： Per Granestrand ,  Jan-OLof Wesstrom ,  Dave Adams

IPC分类号： G02F1/035

CPC分类号： G02F1/225 ,  G02F2201/14 ,  G02F2203/21

摘要： A Mach Zehnder (MZ) modulator (1) includes a splitter (4) for splitting incident light in one wave guide (3) into two modulator arms (5,6) of the MZ and a combiner (7) that combines light from the two arms (5,6) into an output mode, where electrodes (9,10) are present in connection with the arms (5,6) for changing the refractive index in the arms in order to modulate incident light so that the light is amplified or so that an extinction, due to interference between the light in the two arms, takes place. The splitter (4) is arranged to split incident light equally into the two arms (5,6) and a part (11) of one of the arms (5) between the electrode (9) and the combiner (7) is designed to cause an intentional loss of light in the wave guide (5), whereby a desired asymmetry in transmission of the two arms (5,6) occurs.

摘要翻译： 马赫曾德尔（MZ）调制器（1）包括用于将一个波导（3）中的入射光分成MZ的两个调制器臂（5,6）的分束器（4）和组合器（7） 两个臂（5,6）进入输出模式，其中电极（9,10）与臂（5,6）结合存在，用于改变臂中的折射率，以便调制入射光，使得光 放大或使得由于两臂中的光之间的干涉而发生消光。 分离器（4）被布置成将入射光均匀地分成两个臂（5,6），并且电极（9）和组合器（7）之间的臂（5）之一的部分（11）被设计成 导致波导（5）中的有意的光损失，由此发生两个臂（5,6）的期望的传输不对称性。

公开(公告)号：US08306370B2

公开(公告)日：2012-11-06

申请号：US12666400

申请日：2008-06-10

申请人： Per Granestrand ,  Jan-OLof Wesstrom ,  Dave Adams

发明人： Per Granestrand ,  Jan-OLof Wesstrom ,  Dave Adams

IPC分类号： G02F1/35 ,  G02B6/00

CPC分类号： G02F1/225 ,  G02F2201/14 ,  G02F2203/21

摘要： A Mach Zehnder (MZ) modulator (1) includes a splitter (4) for splitting incident light in one wave guide (3) into two modulator arms (5,6) of the MZ and a combiner (7) that combines light from the two arms (5,6) into an output mode, where electrodes (9,10) are present in connection with the arms (5,6) for changing the refractive index in the arms in order to modulate incident light so that the light is amplified or so that an extinction, due to interference between the light in the two arms, takes place. The splitter (4) is arranged to split incident light equally into the two arms (5,6) and a part (11) of one of the arms (5) between the electrode (9) and the combiner (7) is designed to cause an intentional loss of light in the wave guide (5), whereby a desired asymmetry in transmission of the two arms (5,6) occurs.

摘要翻译： 马赫曾德尔（MZ）调制器（1）包括用于将一个波导（3）中的入射光分成MZ的两个调制器臂（5,6）的分束器（4）和组合器（7） 两个臂（5,6）进入输出模式，其中电极（9,10）与臂（5,6）结合存在，用于改变臂中的折射率，以便调制入射光，使得光 放大或使得由于两臂中的光之间的干涉而发生消光。 分离器（4）被布置成将入射光均匀地分成两个臂（5,6），并且电极（9）和组合器（7）之间的臂（5）之一的部分（11）被设计成 导致波导（5）中的有意的光损失，由此发生两个臂（5,6）的期望的传输不对称性。

公开(公告)号：US20100322560A1

公开(公告)日：2010-12-23

申请号：US12666732

申请日：2008-06-04

申请人： Per Granestrand ,  Jan-Olof Wesstrom ,  Dave Adams

发明人： Per Granestrand ,  Jan-Olof Wesstrom ,  Dave Adams

IPC分类号： G02B6/26 ,  H01R13/74

CPC分类号： G02B6/1228 ,  B82Y20/00 ,  G02B6/1223 ,  Y10T29/49016

摘要： A transition part (1) between two optical waveguides (2,3) with different index contrast is characterised in that the transition part (1) includes a non-adiabatically up-tapered longitudinal section (8), and in that the transition (7) between the two waveguides (2,3) is arranged after the up-tapered longitudinal section (8) as seen along the main direction (L) of propagation of the light. A method of manufacturing the transition part is also described.

摘要翻译： 具有不同折射率对比度的两个光波导（2,3）之间的过渡部分（1）的特征在于，过渡部分（1）包括非绝热的上锥形纵向部分（8），并且转变（7） ）沿着沿着光的传播的主方向（L）观察的上升锥形纵向部分（8）之后布置在两个波导（2,3）之间。 还描述了制造过渡部分的方法。

公开(公告)号：US20110222816A1

公开(公告)日：2011-09-15

申请号：US13120013

申请日：2009-09-17

申请人： Jan-Olof Wesstrom ,  Per Granestrand ,  Stefan Hammerfeldt

发明人： Jan-Olof Wesstrom ,  Per Granestrand ,  Stefan Hammerfeldt

IPC分类号： G02B6/122

CPC分类号： G02B6/1228 ,  G02B6/4207

摘要： A waveguide for the extraction of light at low levels of reflection arranged to guide light from an electro-optical component on a chip to a facet on the chip for extraction includes a first part and a second part. The first part (4) is extended, the second part (5) includes a surface (JK) through which the light exits from the waveguide (1). A non-adiabatic longitudinal section (GHLM) is located after the first part (4) but before the surface (JK) in the direction of propagation of the light, and the surface (JK) forms in the plane of the chip a first angle (V1) with the optical axis (A) of the first part (4) that lies between 5 and 80 degrees.

摘要翻译： 用于提取低反射度的光的波导，布置成将来自芯片上的电光部件的光引导到芯片上的小面上用于提取包括第一部分和第二部分。 第一部分（4）延伸，第二部分（5）包括光（JK），光从光波导（1）射出。 非绝热纵截面（GHLM）位于第一部分（4）之后但在光的传播方向上位于表面（JK）之前，并且表面（JK）在芯片的平面中形成第一角度 （V1）与第一部分（4）的光轴（A）位于5和80度之间。

公开(公告)号：US09921370B2

公开(公告)日：2018-03-20

申请号：US13120013

申请日：2009-09-17

申请人： Jan-Olof Wesstrom ,  Per Granestrand ,  Stefan Hammerfeldt

发明人： Jan-Olof Wesstrom ,  Per Granestrand ,  Stefan Hammerfeldt

IPC分类号： G02B6/26 ,  G02B6/122 ,  G02B6/42

CPC分类号： G02B6/1228 ,  G02B6/4207

摘要： A waveguide for the extraction of light at low levels of reflection arranged to guide light from an electro-optical component on a chip to a facet on the chip for extraction includes a first part and a second part. The first part (4) is extended, the second part (5) includes a surface (JK) through which the light exits from the waveguide (1). A non-adiabatic longitudinal section (GHLM) is located after the first part (4) but before the surface (JK) in the direction of propagation of the light, and the surface (JK) forms in the plane of the chip a first angle (V1) with the optical axis (A) of the first part (4) that lies between 5 and 80 degrees.

公开(公告)号：US6014250A

公开(公告)日：2000-01-11

申请号：US930182

申请日：1998-02-13

申请人： Per Granestrand

发明人： Per Granestrand

IPC分类号： H01S5/00 ,  H01S5/34 ,  H01S5/50 ,  H01S3/19

CPC分类号： B82Y20/00 ,  H01S5/34 ,  H01S5/5009 ,  H01S5/3403 ,  H01S5/3404

摘要： A laser amplifier, an optical system comprising such a laser amplifier and a method of forming such a laser amplifier for obtaining polarization independent amplification over a large wavelength region. The optical amplifier comprises an active region that is formed on a semiconductor substrate (6). The active layer has been formed through growing of quantum well layers (13, 14, 15, 16) alternating with barrier layers (12). The well layers comprise well layers of a first type (14, 15, 16) having tensile strain together with or without well layers of a second type having compressive strain (13). At least one of the well layers of one type (16) has been grown to a different width and/or with a different material composition than the other well layers of the same type (14, 15).

摘要翻译： PCT No.PCT / SE96 / 00587 Sec。 371日期1998年2月13日 102（e）1998年2月13日PCT PCT 1996年5月3日PCT公布。 出版物WO96 / 35248 日期：1996年11月7日激光放大器，包括这种激光放大器的光学系统和形成这样的激光放大器的方法，用于在大波长区域上获得偏振无关放大。 光放大器包括形成在半导体衬底（6）上的有源区。 已经通过与阻挡层（12）交替的量子阱层（13,14,15,16）的生长形成有源层。 阱层包括具有拉伸应变的第一类型（14,15,16）的阱层，以及具有压缩应变（13）的第二类型的阱层。 一种类型（16）的阱层中的至少一个已经生长到与相同类型（14,15）的其它阱层不同的宽度和/或不同的材料组成。

公开(公告)号：US06914924B2

公开(公告)日：2005-07-05

申请号：US09898018

申请日：2001-07-05

申请人： Per Granestrand ,  Stefan Bjurshagen ,  Åsa Björkström ,  Lennart Lundqvist

发明人： Per Granestrand ,  Stefan Bjurshagen ,  Åsa Björkström ,  Lennart Lundqvist

IPC分类号： H01S5/026 ,  H01S5/10 ,  H01S5/12 ,  H01S5/00

CPC分类号： H01S5/0265 ,  H01S5/1085 ,  H01S5/12

摘要： An optical device has a back facet (27) and a front facet (29; 29′) opposite to each other, and includes a laser (23) adapted to emit light essentially perpendicular to said back facet; a modulator (25; 51; 55) having an input end and an output end (35; 53; 57), respectively, and adapted to receive and modulate light emitted from said laser and to output modulated light at said modulator output end; and a window region (33) arranged between said modulator output end and said device front facet, said device being further arranged such that modulated light output from said modulator is transmitted through said window region and is output from said device through said device front facet. The modulator is bent such that the modulated light output from said modulator is propagating essentially in a direction (34), which is angled (α; δ) with respect to the normal (Z; 71) of said device front facet.

摘要翻译： 光学装置具有彼此相对的后刻面（27）和前刻面（29; 29'），并且包括适于发射基本垂直于所述背面的光的激光器（23） 分别具有输入端和输出端（35; 53; 57）的调制器（25; 51; 55），并且适于接收和调制从所述激光器发出的光并在所述调制器输出端输出调制光; 以及布置在所述调制器输出端和所述器件正面之间的窗口区域（33），所述器件还被布置成使得从所述调制器输出的调制光通过所述窗口区域传输，并且通过所述器件正面从所述器件输出。 调制器被弯曲，使得从所述调制器输出的调制光基本上沿相对于所述器件前端小面的法线（Z; 71）成角度（α）的方向（34）传播。

公开(公告)号：US07065119B2

公开(公告)日：2006-06-20

申请号：US10433658

申请日：2001-12-13

申请人： Krister Frojdh ,  Per Granestrand

发明人： Krister Frojdh ,  Per Granestrand

IPC分类号： H01S5/00 ,  H01S3/97 ,  H01S3/08

CPC分类号： H01S5/0421 ,  H01S5/0425 ,  H01S5/12 ,  H01S5/22

摘要： An electrooptic device (1) such as a distributed feed back semiconductor laser or a semiconductor modulator comprises an optical waveguide. A contact layer (11) is applied to the optical waveguide for conducting electrical current to the device for driving or modulating it. The contact layer is connected to the end of an electrically conducting path (3) and can have a shape, as seen perpendicularly to the surface of the device, to give an electric resistance between the end of the path and different areas at the optical waveguide which resistance is higher for areas located close to the ends of the device than for areas are located at the central region of the device. The shape can be si-milar to a trapezium having concave oblique sides and is selected so that the resulting varying electrical resistance gives a sub-stantially uniform electrical power or gain inside the optical waveguide, taken in the longitudinal direction of the waveguide.

摘要翻译： 诸如分布式反馈半导体激光器或半导体调制器的电光装置（1）包括光波导。 接触层（11）被施加到光波导以将电流传导到用于驱动或调制它的装置。 接触层连接到导电路径（3）的端部并且可以具有垂直于器件表面所看到的形状，以在路径的端部与光波导的不同区域之间产生电阻 对于位于设备端部附近的区域而言，对于区域而言，哪个电阻较高位于设备的中心区域。 该形状可以与具有凹斜边的梯形相似，并且被选择为使得所得到的变化的电阻在波导的纵向方向上提供在光波导内部的基本上均匀的电功率或增益。