公开(公告)号：US10649147B2

公开(公告)日：2020-05-12

申请号：US16099955

申请日：2017-05-12

申请人： NTT Electronics Corporation ,  Nippon Telegraph and Telephone Corporation

发明人： Tomohiro Nakanishi ,  Teruaki Sato ,  Motohaya Ishii ,  Satoru Konno ,  Yuichi Suzuki ,  Shigeo Nagashima ,  Shinji Mino ,  Shuichiro Asakawa ,  Hiroshi Fukuda ,  Shin Kamei ,  Shunichi Soma ,  Ken Tsuzuki ,  Mitsuo Usui ,  Takashi Saida

IPC分类号： G02B6/30

摘要： An optical module that is connectable to an optical fiber array and that can be packaged in a high density. Two package modules are mounted on a board, and optical waveguides in a Si photonic lightwave circuit mounted on the package module are connected to an optical fiber array fixed to an optical fiber block. Moreover, output end surfaces of the optical waveguides in the Si photonic lightwave circuit are perpendicular to a mount surface of the package module. The optical waveguides in the Si photonic lightwave circuit may be tilted at an appropriate angle with respect to a direction perpendicular to a right end surface. Moreover, the optical fiber block fixes optical fibers with the optical fibers tilted with respect to a direction perpendicular to an end surface connected to the Si photonic lightwave circuit.

公开(公告)号：US20190353844A1

公开(公告)日：2019-11-21

申请号：US16099955

申请日：2017-05-12

申请人： NTT Electronics Corporation ,  Nippon Telegraph and Telephone Corporation

发明人： Tomohiro Nakanishi ,  Teruaki Sato ,  Motohaya Ishii ,  Satoru Konno ,  Yuichi Suzuki ,  Shigeo Nagashima ,  Shinji Mino ,  Shuichiro Asakawa ,  Hiroshi Fukuda ,  Shin Kamei ,  Shunichi Soma ,  Ken Tsuzuki ,  Mitsuo Usui ,  Takashi Saida

IPC分类号： G02B6/30

摘要： An optical module which is connectable to an optical fiber array and which can be packaged in a high density. Two 30 mm square package modules are mounted on a board, and optical waveguides in a 20 mm square Si photonic lightwave circuit mounted on the package module are connected to an optical fiber array fixed to an optical fiber block (15×10 mm). Moreover, output end surfaces of the optical waveguides in the Si photonic lightwave circuit are perpendicular to a mount surface of the package module. In the embodiment, the optical waveguides in the Si photonic lightwave circuit are tilted at an appropriate angle, for example, 20 degrees with respect to a direction perpendicular to a right end surface. Moreover, the optical fiber block fixes optical fibers with the optical fibers tilted at 20 degrees with respect to a direction perpendicular to an end surface connected to the Si photonic lightwave circuit.

公开(公告)号：US11307356B2

公开(公告)日：2022-04-19

申请号：US16957259

申请日：2018-12-19

申请人： NTT ELECTRONICS CORPORATION ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Yuichi Suzuki ,  Tomohiro Nakanishi ,  Motoki Minami ,  Hiroshi Tomita ,  Motohaya Ishii ,  Shuichiro Asakawa ,  Shunichi Soma

IPC分类号： G02B6/30 ,  G02B6/42 ,  G02B6/44

摘要： An optical module that has a structure ensuring reduction in size. The optical module has a structure where a part of a fiber block is protruded from a housing. By including a thin plate, this optical module can avoid entering of dust in the housing, allows a position shift of the fiber block due to a mounting position error of an optical component in the housing, a position shift of an opening portion due to a dimensional error of the housing, or a displacement due to a temperature change, and can reduce the coupling loss due to the optical axis misalignment.

公开(公告)号：US10908356B2

公开(公告)日：2021-02-02

申请号：US16346182

申请日：2017-11-02

申请人： NTT ELECTRONICS CORPORATION ,  NIPPON TELEGRAPH AND TELEPHONE CORPORATION

发明人： Tomohiro Nakanishi ,  Motoki Minami ,  Satoru Konno ,  Yuichi Suzuki ,  Teruaki Sato ,  Shigeo Nagashima ,  Shinji Mino ,  Motohaya Ishii ,  Shunichi Soma ,  Shin Kamei ,  Shuichiro Asakawa

IPC分类号： G02B6/30 ,  G02B6/122 ,  G02B6/132

摘要： An optical circuit board which is mounted with a loop-back circuit for returning aligning light to the fiber array in the vicinity of the fiber array connection end. Since an aligning loop-back circuit can be formed in an optical waveguide pattern, a production cost does not increase in comparison to an optical circuit board of the related art. The aligning light combined from the optical fiber to the aligning port of the optical circuit board is returned to the optical fiber around the loop-back circuit. Therefore, it is possible to perform alignment using the returned light. That is, alignment can be performed while being mounted on a package without installing a light-reflecting film or mirror.