Optical waveguide
    31.
    发明公开
    Optical waveguide 审中-公开
    光波导

    公开(公告)号:EP1273936A3

    公开(公告)日:2004-12-29

    申请号:EP02254682.4

    申请日:2002-07-03

    IPC分类号: G02B6/12 G02B6/34

    摘要: An optical waveguide of the invention is formed by depositing an underclad (1b) on a silicon substrate (11), by forming thereon a core (2) having, for instance, an arrayed waveguide grating circuit, and by covering the core with an overclad (1a), and, without disposing a half wave plate, can suppress an influence of polarization dependency attenuation and deterioration due to moisture absorption. An arrayed waveguide grating circuit includes at least one input waveguide, a first slab waveguide, an arrayed waveguide made of a plurality of channel waveguides arranged side by side with lengths different by a predetermined amount from each other, a second slab waveguide, and an output waveguide. The clad and the core are made of silica-based glass. When the thermal expansion coefficient of the substrate is α s , that of the underclad α uc , and that of the overclad α oc , α oc is equal to or greater than (α s -2.0×10 -7 ) and equal to or smaller than (α s +2.0×10 -7 ), and (α oc -α uc ) is equal to or smaller than (21.5×10 -7 ).

    摘要翻译: 本发明的光波导通过在硅衬底(11)上沉积下包层(1b),在其上形成具有例如阵列波导光栅电路的芯(2),并且通过用外包覆层覆盖芯而形成 (1a),并且不设置半波片,可以抑制偏振依赖衰减和由吸湿引起的劣化的影响。 阵列波导光栅电路包括至少一个输入波导,第一平板波导,由多个彼此长度相差预定量的多个信道波导组成的阵列波导,第二平板波导和输出端 波导。 包层和核心由硅基玻璃制成。 当基板的热膨胀系数为αs时,下包层αuc和外包层αoc的热膨胀系数为αs,αoc等于或大于(αs-2.0×10-7)且等于或小于(αs+ 2.0 ×10-7),(αoc-αuc)等于或小于(21.5×10-7)。

    Optical signal processing apparatus and optical signal processing method
    32.
    发明公开
    Optical signal processing apparatus and optical signal processing method 失效
    Optische Signalverarbeitungsvorrichtung und optisches Signalverarbeitungsverfahren

    公开(公告)号:EP1452896A2

    公开(公告)日:2004-09-01

    申请号:EP04012363.0

    申请日:1997-09-01

    IPC分类号: G02B6/293

    摘要: The present invention relates to an optical signal processing apparatus and optical signal processing method which enable generation, waveform shaping, waveform measurement, waveform recording, correlation processing, and the like of optical pulses of 1-10 ps. A basic construction of the optical signal processing apparatus includes an optical waveguide (9), (13), (22), (26), (33), (37), (41), (56), a first means (2), (10), (14), (25), (36), (42), (57) for equally distributing output light of the optical waveguide, an optical waveguide comprising an aggregate of optical waveguides changing in optical length by a constant interval, an arrayed waveguide (3), (11), (15), (24), (32), (43), (58) for dividing the output light, second means (4), (12), (16), (23), (34), (35), (59) for focusing optical output of the arrayed waveguide, and a mirror (110), (402), (2021), (2048), (2115) for receiving and reflecting incident light focused by the second means. Or, the apparatus includes an optical waveguide, first means for equally distributing output light of the optical waveguide, an arrayed waveguide comprising an aggregate of optical waveguides changing in optical length by a constant interval for dividing the output light, second means for focusing optical output of the arrayed waveguide, and a spatial filter (5), (17), (109) for receiving light focused by the second means to distribute the incident light on a straight line and making desired amplitude or phase modulation of the light according to the position on the straight line and reflecting the light.

    摘要翻译: 光信号处理装置和光信号处理方法技术领域本发明涉及能够进行1-10ps光脉冲的生成,波形整形,波形测量,波形记录,相关处理等的光信号处理装置和光信号处理方法。 光信号处理装置的基本结构包括光波导(9),(13),(22),(26),(33),(37),(41),(56) ),(10),(14),(25),(36),(42),(57),用于均匀分配光波导的输出光;光波导,包括光波长聚集体, 用于分割输出光的阵列波导(3),(11),(15),(24),(32),(43),(58),第二装置(4),(12) 用于聚焦阵列波导的光输出的反射镜(110),(34),(34),(35),(59)以及反射镜(110),(402),(2021),(2048),(2115) 接收和反映第二种手段聚焦的入射光。 或者,该装置包括光波导,用于均匀地分配光波导的输出光的第一装置,包括光学波长的聚集体的阵列波导,光波长的集合以恒定的间隔改变以分割输出光;第二装置,用于聚焦光输出 和用于接收由第二装置聚焦的光的空间滤波器(5),(17),(109),以将入射光分布在直线上,并根据所述第二装置对光进行所需的幅度或相位调制 直线上的位置并反射光。

    Wavelength selective polarization beam splitter/combiner
    35.
    发明公开
    Wavelength selective polarization beam splitter/combiner 审中-公开
    WellenlängenselektiverPolarisationsstrahlteiler / -mischer

    公开(公告)号:EP1139126A2

    公开(公告)日:2001-10-04

    申请号:EP01302268.6

    申请日:2001-03-12

    IPC分类号: G02B6/293 G02B6/124

    摘要: A wavelength selective polarization beam device uses waveguide grating routers (WGRs) having birefringent grating waveguides. When the device is used as a splitter it separates different wavelength channels of a wavelength division multiplexed (WDM) signal as well as the orthogonal polarization components of each wavelength channel. Since the WGR device is reciprocal, it can also be used as a combiner to combine the orthogonal polarization components of each wavelength channel into a WDM signal.

    摘要翻译: 波长选择性偏振光束装置使用具有双折射光栅波导的波导光栅路由器(WGR)。 当该器件用作分路器时,其分离波分复用(WDM)信号的不同波长信道以及每个波长信道的正交偏振分量。 由于WGR设备是互逆的,所以它也可以用作组合器以将每个波长信道的正交偏振分量组合成WDM信号。

    Broadening of arrayed waveguide grating passband response
    37.
    发明公开
    Broadening of arrayed waveguide grating passband response 有权
    Verbreiterung der Brandbreite eines Wellenleitergitters

    公开(公告)号:EP1091220A2

    公开(公告)日:2001-04-11

    申请号:EP00114753.7

    申请日:2000-07-10

    IPC分类号: G02B6/293

    摘要: The essential feature is the step of generating a controllable 'dynamic' intensity field profile with a controllable beating pattern in a multimode superposition of different modes, as e.g., a fundamental mode and a higher order mode as e,g., the TE0 mode and TE1 mode of an input wavelength entering the input site of an AWG apparatus, whereby said beating pattern is controlled in a fixed, or in variable, predetermined way, as e.g., with a fixed or a wavelength dependent power ratio and beating pattern, for improving the mode overlap in a receiver waveguide associated with an output site of said apparatus.
    With variable conditions, a lower number of converter units is required. In a 8:1 multiplexer, for example, there is needed just one converter unit at its output. A 1:8 demultiplexer can be obtained by solely reversing the AWG apparatus.

    摘要翻译: 基本特征是在不同模式的多模叠加中产生具有可控跳动模式的可控“动态”强度场分布的步骤,例如基本模式和较高阶模式,例如TE0模式和 输入波长的TE1模式进入AWG设备的输入位置,由此所述跳动模式以固定或以可变的预定方式被控制,例如具有固定或波长依赖的功率比和跳动模式,以改善 在与所述设备的输出位置相关联的接收机波导中的模式重叠。 在可变条件下,需要较少数量的转换器单元。 例如,在8:1多路复用器中,输出端只需要一个转换器单元。 可以通过仅逆转AWG设备来获得1:8解复用器。

    Optical device having equal length waveguide paths
    38.
    发明公开
    Optical device having equal length waveguide paths 有权
    Optisches Bauelement mit Wellenleitern gleicherLänge

    公开(公告)号:EP1020740A1

    公开(公告)日:2000-07-19

    申请号:EP00300041.1

    申请日:2000-01-06

    IPC分类号: G02B6/124 G02B6/125

    摘要: An optical device having an array of substantially equal-length optical waveguides. Each one of the optical waveguides includes one or more straight segments, one or more curved segments, and optionally, one or more transition segments. According to my invention, the sum of the lengths of the straight segments in each of the waveguides is substantially equal. Similarly, the sum of the lengths of the curved segments in each of the waveguides may be substantially equal as well. Finally, the sum of the lengths of optional transition segments in each of the waveguides may also be substantially equal. Advantageously, my device exhibits relative lengths that are robust to fabrication errors and have low polarization sensitivity.

    摘要翻译: 具有基本相同长度的光波导阵列的光学器件。 每个光波导包括一个或多个直线段,一个或多个弯曲段,以及可选地,一个或多个过渡段。 根据我的发明,每个波导中的直段的长度之和基本相等。 类似地,每个波导中的弯曲段的长度的总和也可以是基本相等的。 最后,每个波导中任选的过渡段的长度的总和也可以基本相等。 有利的是,我的装置表现出相对于制造误差稳健且具有低偏振灵敏度的相对长度。

    Wavelength division multi/demultiplexer
    39.
    发明公开
    Wavelength division multi/demultiplexer 有权
    Wellenlängen复用器/解复用器

    公开(公告)号:EP0978740A2

    公开(公告)日:2000-02-09

    申请号:EP99115028.5

    申请日:1999-08-03

    IPC分类号: G02B6/293

    摘要: A wavelength division multi/demultiplexer multi/demultiplexes incident light to emit demultiplexed lights from each of a plurality of light output ends and includes a first wavelength division multi/demultiplexing circuit (19) having at least one light input end (2) and a plurality of light output end (6); and second wavelength division multi/demultiplexing circuits (20) of AWG type formed on a substrate, including a plurality of light input and output ends (2,6), one or two light multiplexing and demultiplexing sections (3,5), and a plurality of arrayed waveguides (4), and having a transmission bandwidth different from that of the first circuit, the transmission bandwidth indicating the width of a light frequency that can pass through each light input and output end, wherein the first circuit and at least one of the second circuits are optically connected together (21), and wherein the light output ends of the final second circuit are used as the light output ends of the wavelength division multi/demultiplexer. It is possible to greatly increase the number of channels of the wavelength division multi/demultiplexer using the AWG type wavelength division multi/demultiplexing circuit.

    摘要翻译: 波分复用/解复用器多路复用入射光以从多个光输出端中的每一个发射多路分解的光,并且包括具有至少一个光输入端(2)和多个光输入端(2)的第一波分多址/解复用电路(19) 的光输出端(6); 以及形成在基板上的包括多个光输入和输出端(2,6),一个或两个光复用和解复用部分(3,5)的AWG型第二波分多址/解复用电路(20)和 多个阵列波导(4),并且具有不同于第一电路的传输带宽,传输带宽指示可以通过每个光输入和输出端的光频率的宽度,其中第一电路和至少一个 的第二电路被光学连接在一起(21),并且其中最终第二电路的光输出端用作波分多/多路分解器的光输出端。 使用AWG型波分多址/解复用电路可以大幅增加波分多址/解复用器的信道数。