公开(公告)号：US11886005B2

公开(公告)日：2024-01-30

申请号：US17614668

申请日：2019-05-30

Applicant: Nippon Telegraph and Telephone Corporation

Inventor： Junji Sakamoto ,  Toshikazu Hashimoto

IPC: G02B6/12 ,  G02B6/293 ,  G02B6/28 ,  G02B6/35

CPC classification number: G02B6/12019 ,  G02B6/12007 ,  G02B6/12014 ,  G02B6/2938 ,  G02B6/29385 ,  G02B6/2821 ,  G02B6/3546

Abstract: To provide an optical multiplexing circuit that can accurately monitor light of a plurality of wavelengths, and that can tolerate degradation of LDs. An optical multiplexing circuit includes m sets of multiplexers configured to multiplex light output from n connection waveguides being a plurality of connection waveguides wherein a multiplexing unit configured to input and multiplex light output from the m sets of the multiplexers from m input waveguides, an output waveguide configured to output light multiplexed by the multiplexing unit, and n×m or m branching units being inserted into n×m connection waveguides of the plurality of connection waveguides or the m input waveguides are provided on a same substrate.

公开(公告)号：US20230400628A1

公开(公告)日：2023-12-14

申请号：US17806873

申请日：2022-06-14

Applicant: Raytheon Company

Inventor： Stephen P. Palese

IPC: G02B6/12

CPC classification number: G02B6/12004 ,  G02B6/12014 ,  G02B2006/12035

Abstract: An apparatus includes a photonic integrated circuit having an optical phased array, where the optical phased array includes multiple unit cells. Each unit cell includes at least one antenna element configured to transmit or receive multiple optical signals having spectrally-distinct wavelengths or wavelength ranges. Each unit cell also includes at least one signal pathway configured to transport the optical signals to or from the at least one antenna element. Each unit cell further includes a phase modulator configured to modify phases of the optical signals being transported through the at least one signal pathway. Each unit cell is configured to provide correlated phase shifts to the optical signals having the spectrally-distinct wavelengths or wavelength ranges.

公开(公告)号：US20190204605A1

公开(公告)日：2019-07-04

申请号：US16326817

申请日：2018-05-29

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Naifu Wu

IPC: G02B27/01 ,  G02B6/12 ,  G02B27/28

CPC classification number: G02B27/0172 ,  G02B6/12014 ,  G02B27/283 ,  G02B2027/0125 ,  G02B2027/0178

Abstract: An arrayed waveguide, a display device, and a spectacles device are disclosed. The arrayed waveguide includes a first waveguide layer and a second waveguide layer stacked. The first waveguide layer includes a first main expanding portion having a plurality of first optical medium layers configured to expand, in the first direction, the first light beam incident into the first main expanding portion and reflect it towards the second waveguide layer. The second waveguide layer includes a second main expanding portion having a plurality of second optical medium layers configured to expand, in the second direction, the second light beam incident into the second main expanding portion and reflect it to exit from a side of the second waveguide layer away from the first waveguide layer. The second main expanding portion is further configured to transmit the expanded first light beam therethrough.

公开(公告)号：US10054738B2

公开(公告)日：2018-08-21

申请号：US15438801

申请日：2017-02-22

Applicant: NTT ELECTRONICS CORPORATION

Inventor： Keiichi Morita ,  Kazumi Shimizu ,  Kouji Kawashima ,  Tomoharu Niitsu

IPC: G02B6/34 ,  G02B6/12 ,  G02B6/293

CPC classification number: G02B6/12014 ,  G02B6/12011 ,  G02B6/2813 ,  G02B6/29344

Abstract: A technique that does not increase the circuit size, does not make the circuit design and manufacturing difficult, and can reduce insertion loss when light enters from a slab waveguide toward an arrayed waveguide or when the light enters from the arrayed waveguide toward the slab waveguide. An optical waveguide provided with a slab waveguide in which a grating is formed therein at a distance from an end, and an arrayed waveguide whose end is connected to an end of the slab waveguide at a position where a constructive interference portion of a self-image of the grating is formed. An arrayed waveguide grating provided with a first input/output waveguide, the above-mentioned optical waveguide where an end of the slab waveguide on the opposite side of the arrayed waveguide is connected to an end of the first input/output waveguide, a second slab waveguide connected to an end of the arrayed waveguide on the opposite side of the slab waveguide, and a second input/output waveguide connected to an end of the second slab waveguide on the opposite side of the arrayed waveguide.

公开(公告)号：US09494735B2

公开(公告)日：2016-11-15

申请号：US13271886

申请日：2011-10-12

Applicant: Hindrik Freerk Bulthuis

Inventor： Hindrik Freerk Bulthuis

IPC: G02B6/12 ,  H04J14/02

CPC classification number: G02B6/12016 ,  G02B6/12014 ,  H04J14/0282

Abstract: Roughly described, an AWG has two or more inputs and multiple outputs. By selecting the angular spacing among the inputs, and by designing the different inputs to address different orders of the waveguide array, the device can be designed such that the inputs will carry frequency bands having any desired center frequency spacing and any desired same or different channel spacing. For example a dual input device can be designed such that one input carries C-band channels and the other input carries L-band channels, and both have channel spacings that match or substantially match the ITU grid.

Abstract translation: 粗略描述，AWG具有两个或多个输入和多个输出。 通过选择输入之间的角度间隔，并且通过设计不同的输入来解决波导阵列的不同阶数，该设备可被设计成使得输入端将承载具有任何期望的中心频率间隔的频带和任何所需的相同或不同的信道 间距。 例如，双输入设备可以被设计成使得一个输入端携带C波段信道，另一个输入端携带L波段信道，并且都具有与ITU网格匹配或基本匹配的信道间隔。

公开(公告)号：US20160223745A1

公开(公告)日：2016-08-04

申请号：US14826869

申请日：2015-08-14

Applicant: ELECTRONICS AND TELECOMMUNICATIONS RESEARCH INSTITUTE

Inventor： Jaegyu PARK ,  Myungjoon KWACK ,  Gyungock KIM ,  Jiho JOO

IPC: G02B6/12 ,  G02B6/125 ,  G02B6/122

CPC classification number: G02B6/12014 ,  G02B6/12016 ,  G02B6/12026 ,  G02B6/1228 ,  G02B6/125 ,  G02B2006/12097

Abstract: Provided is a wavelength combiner including a slab waveguide; an output waveguide extended from the slab waveguide in a first direction; and at least one rib waveguide disposed at an interval horizontally from the output waveguide and extended from the slab waveguide in the first direction, wherein the rib waveguide is tapered in the first direction.

Abstract translation: 提供了包括平板波导的波长组合器; 从第一方向从平板波导延伸的输出波导; 以及至少一个肋波导，其以与所述输出波导水平相对的间隔设置，并且沿着所述第一方向从所述平板波导延伸，其中所述肋波导在所述第一方向上逐渐变细。

公开(公告)号：US09343870B2

公开(公告)日：2016-05-17

申请号：US14501751

申请日：2014-09-30

Applicant: Applied Optoelectronics, Inc.

Inventor： Jun Zheng ,  Klaus Alexander Anselm ,  Huanlin Zhang ,  Hung-Lun Chang

IPC: H01S5/00 ,  H01S5/024 ,  H01S5/026 ,  H01S5/042 ,  H01S5/20 ,  H01S5/10 ,  H01S5/12 ,  H01S5/40 ,  G02B6/12 ,  H04B10/50

CPC classification number: H01S5/02453 ,  G02B6/12 ,  G02B6/12014 ,  G02B2006/12164 ,  H01S5/02415 ,  H01S5/02438 ,  H01S5/02461 ,  H01S5/0261 ,  H01S5/0268 ,  H01S5/0287 ,  H01S5/0612 ,  H01S5/22 ,  H01S5/4087 ,  H01S2301/176 ,  H04B10/40 ,  H04J14/0282

Abstract: A semiconductor laser diode with integrated heating generally includes a lasing region and a heating region integrated into the same semiconductor structure or chip. The lasing region and the heating region include first and second portions, respectively, of the semiconductor layers forming the semiconductor structure and include first and second portions, respectively, of the active regions formed by the semiconductor layers. Separate laser and heater electrodes are electrically connected to the respective lasing and heating regions for driving the respective lasing and heating regions with drive currents. The heating region may thus be driven independently from the lasing region, and heat may be conducted through the semiconductor layers from the heating region to the lasing region allowing the temperature to be controlled more efficiently.

Abstract translation: 具有集成加热的半导体激光二极管通常包括激光区域和集成在同一半导体结构或芯片中的加热区域。 激光区域和加热区域分别包括形成半导体结构的半导体层的第一和第二部分，并且分别包括由半导体层形成的有源区的第一和第二部分。 单独的激光和加热器电极电连接到相应的激光和加热区域，以用驱动电流驱动相应的激光和加热区域。 因此，加热区域可以独立于激光区域被驱动，并且热可以通过半导体层从加热区域传导到激光区域，从而能够更有效地控制温度。

公开(公告)号：US20160041337A1

公开(公告)日：2016-02-11

申请号：US14778707

申请日：2014-03-20

Applicant: EFFECT PHOTONICS B.V.

Inventor： Boudewijn DOCTER

IPC: G02B6/12 ,  G02B6/293 ,  G02B6/27

CPC classification number: G02B6/12023 ,  G02B6/12009 ,  G02B6/12014 ,  G02B6/12019 ,  G02B6/2773 ,  G02B6/29302 ,  G02B6/29344 ,  G02B6/29352 ,  G02B6/2938 ,  G02B6/29395

Abstract: An integrated photonic component (100) for polarization insensitive wavelength multiplexing includes an arrayed waveguide grating, AWG, (1) having a predetermined polarization splitting and a MZI-based polarization beam splitter (8) that is configured to compensate the predetermined polarization splitting of the AWG (1). The result is a fabrication tolerant integrated photonic component (100) that is operable over a wide number of limited bandwidth wavelength channels of a wavelength division multiplexing, WDM, system. A photonic integrated circuit, PIC, (200) for use in a WDM system is provided. The PIC (200) includes the integrated photonic component (100). A method of designing the integrated photonic component (100) is also described.

Abstract translation: 用于偏振不敏感波长复用的集成光子分量（100）包括阵列波导光栅，具有预定偏振分束的AWG（1）和基于MZI的偏振分束器（8），其被配置为补偿预定的偏振分束 AWG（1）。 结果是可以在波分复用WDM系统的大量有限带宽波长信道上操作的制造容限集成光子分量（100）。 提供了一种用于WDM系统的光子集成电路PIC（200）。 PIC（200）包括集成光子分量（100）。 还描述了设计集成光子分量（100）的方法。

公开(公告)号：US09110232B2

公开(公告)日：2015-08-18

申请号：US13951656

申请日：2013-07-26

Applicant: NeoPhotonics Corporation

Inventor： Brian P. McGinnis ,  Anthony J. Ticknor

IPC: G02B6/34 ,  G02B6/12 ,  G02B6/35

CPC classification number: G02B6/12026 ,  G02B6/12014 ,  G02B6/12021 ,  G02B6/12033 ,  G02B6/3566 ,  G02B6/3576

Abstract: Arrayed waveguide grating can have one or both slab waveguides with relatively sharply folded optical paths and a mirror that provides the folding of the path. The folded optical paths through the slab waveguides can result in a more compact geometry of the waveguides through the device as well as smaller slab waveguides such that the device can be formed with a significantly smaller overall footprint. Also, arrayed waveguide gratings that cooperate with pivotable mirrors can adjust light passage through the waveguide in response to temperature changes to provide for thermally compensated operation of the device. Thus, very compact planar lightwave circuits filters are described that provide thermally compensated operation.

Abstract translation: 阵列波导光栅可以具有一个或两个具有相对急剧折叠的光路的平板波导和提供路径折叠的反射镜。 通过平板波导的折叠光路可以导致通过器件的波导的更紧凑的几何形状以及较小的平板波导，使得该器件可以形成为具有显着更小的总体占地面积。 此外，与可枢转镜配合的阵列波导光栅可以响应于温度变化来调节通过波导的光通过，以提供器件的热补偿操作。 因此，描述了提供热补偿操作的非常紧凑的平面光波电路滤波器。

公开(公告)号：US09025912B2

公开(公告)日：2015-05-05

申请号：US13537725

申请日：2012-06-29

Applicant: Radhakrishnan L. Nagarajan ,  Masaki Kato

Inventor： Radhakrishnan L. Nagarajan ,  Masaki Kato

IPC: G02B6/00 ,  G02B6/26

CPC classification number: G02B6/26 ,  G02B6/12014 ,  G02B6/12019 ,  G02B6/12023

Abstract: An optical device may include a substrate and an arrayed waveguide grating provided on the substrate. The arrayed waveguide grating may include a first slab or a second slab and multiple waveguides extending therebetween. The optical device may also include a layer of material provided on one of the first slab or second slab. The layer of material may have a thickness such that first light may have a first polarization is absorbed by the material and second light may have a second polarization passes through the one of the first slab or the second slab.

Abstract translation: 光学器件可以包括衬底和设置在衬底上的阵列波导光栅。 阵列波导光栅可以包括第一平板或第二平板以及在它们之间延伸的多个波导。 光学装置还可以包括设置在第一板或第二板之一上的一层材料。 材料层可以具有这样的厚度，使得第一光可以具有第一极化被材料吸收，并且第二光可以具有穿过第一板或第二板之一的第二极化。