公开(公告)号：US20190033526A1

公开(公告)日：2019-01-31

申请号：US16150883

申请日：2018-10-03

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Junichi HASEGAWA ,  Yasuyoshi UCHIDA

IPC: G02B6/14 ,  G02B6/30 ,  G02B6/036 ,  G02B6/132 ,  G02B6/122

Abstract: An optical module includes a single-mode optical fiber; a high relative refractive-index difference optical fiber having a larger core-to-cladding relative refractive-index difference than that of the single-mode optical fiber fusion-spliced to a first end of the high relative refractive-index difference optical fiber; a planar lightwave circuit that includes an optical waveguide having a core of quartz-based glass doped with a refractive-index raising dopant and a cladding of quartz-based glass, and is connected at a first end thereof to a second end, opposite to the first end, of the high relative refractive-index difference optical fiber; and a silicon thin-wire waveguide element that includes a silicon thin-wire waveguide having a silicon core and a cladding whose refractive index lower than that of the silicon core, and is connected to a second end, opposite to the first end, of the optical waveguide of the planar lightwave circuit.

公开(公告)号：US20210364697A1

公开(公告)日：2021-11-25

申请号：US17393957

申请日：2021-08-04

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Yusuke INABA ,  Junichi HASEGAWA ,  Maiko ARIGA ,  Kazuki YAMAOKA

IPC: G02B6/12

Abstract: An optical module includes: a substrate and a waveguide element having a mount face opposed to the substrate, the waveguide element having an interference waveguide portion having an optical interference function. Further, the mount face includes a projection region to which the interference waveguide portion is projected on the mount face and a non-projection region, and the waveguide element is joined to the substrate with a joint material in the non-projection region.

公开(公告)号：US20150172794A1

公开(公告)日：2015-06-18

申请号：US14613955

申请日：2015-02-04

Applicant: Furukawa Electric Co., Ltd.

Inventor： Junichi HASEGAWA ,  Noritaka MATSUBARA ,  Kazutaka NARA

IPC: H04Q11/00 ,  H04J14/02

CPC classification number: H04Q11/0005 ,  G02B6/12 ,  G02F1/3136 ,  G02F2201/16 ,  H04J14/0215 ,  H04Q2011/0015

Abstract: An object of the invention is to provide a switch device, which achieves high expandability, high layout freedom, and low losses. A switch device of an embodiment includes a splitter unit, a first switch unit, a second switch unit, a fiber array which connects the splitter unit to the two switch units, and a control board. The fiber array includes multiple optical fibers bundled in an arrayed fashion. At an end of the fiber array on the splitter unit side, all the optical fibers are bundled into one and connected to the splitter unit. At an end of the fiber array on the switch unit side, the multiple optical fibers are divided into two groups and formed into two sub-fiber arrays, which are connected to the first switch unit and the second switch unit, respectively.

Abstract translation: 本发明的目的是提供一种实现高扩展性，高布局自由度和低损耗的开关装置。 实施例的开关装置包括分路器单元，第一开关单元，第二开关单元，将分路单元连接到两个开关单元的光纤阵列和控制板。 光纤阵列包括以阵列方式捆绑的多根光纤。 在分路器单元侧的光纤阵列的一端，所有的光纤被捆成一个并连接到分路器单元。 在开关单元侧的光纤阵列的一端，多根光纤被分成两组，分别形成两个子光纤阵列，分别连接到第一开关单元和第二开关单元。