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1. 发明授权

US11606144B2 Pluggable optical module and optical communication system 有权
公开(公告)号：US11606144B2
公开(公告)日：2023-03-14
申请号：US16951424
申请日：2020-11-18
申请人： NEC CORPORATION
发明人： Isao Tomita
IPC分类号： H04B10/40 , G02B6/42 , H04B10/61 , H01S5/02251 , H01S5/50 , H01S5/02216 , H01S5/00 , H01S5/14 , G02F1/01 , G02F2/00 , H01S5/022
摘要： A pluggable optical connector is configured to be insertable into and removable from an optical communication apparatus, and to be capable of communicating a modulation signal and a data signal with the optical communication apparatus. A wavelength-tunable light source is configured to output an output light and a local oscillation light. An optical transmission unit is configured to output an optical signal generated by modulating the output light in response to the modulation signal. An optical reception unit is configured to demodulate an optical signal received by using the local oscillation light to the data signal. Pluggable optical receptors are configured in such a manner that an optical fiber is insertable into and removable from the pluggable optical receptors, and configured to be capable of outputting the optical signal to the optical fiber and transferring the optical signal received thorough the optical fiber to the optical reception unit.

2. 发明授权

US11899256B2 Pluggable optical module and optical communication system 有权
公开(公告)号：US11899256B2
公开(公告)日：2024-02-13
申请号：US18093468
申请日：2023-01-05
申请人： NEC Corporation
发明人： Isao Tomita
IPC分类号： G02B6/42 , H04B10/40 , H04B10/61 , H01S5/02251 , H01S5/0239 , H01S5/50 , H01S5/00 , H01S5/14 , H01S5/02216 , G02F1/01 , H01S5/022 , G02F2/00
CPC分类号： G02B6/4292 , G02B6/42 , G02B6/4246 , H01S5/0239 , H01S5/02251 , H01S5/50 , H04B10/40 , H04B10/61 , G02F1/01 , G02F2/00 , H01S5/005 , H01S5/0064 , H01S5/0071 , H01S5/022 , H01S5/02216 , H01S5/142
摘要： A pluggable optical connector is configured to be insertable into and removable from an optical communication apparatus, and to be capable of communicating a modulation signal and a data signal with the optical communication apparatus. A wavelength-tunable light source is configured to output an output light and a local oscillation light. An optical transmission unit is configured to output an optical signal generated by modulating the output light in response to the modulation signal. An optical reception unit is configured to demodulate an optical signal received by using the local oscillation light to the data signal. Pluggable optical receptors are configured in such a manner that an optical fiber is insertable into and removable from the pluggable optical receptors, and configured to be capable of outputting the optical signal to the optical fiber and transferring the optical signal received thorough the optical fiber to the optical reception unit.

3. 发明授权

US11342991B2 Pluggable optical module, optical communication system, and control method of pluggable optical module 有权
公开(公告)号：US11342991B2
公开(公告)日：2022-05-24
申请号：US17142625
申请日：2021-01-06
申请人： NEC Corporation
发明人： Isao Tomita
IPC分类号： H04B10/00 , H04B10/079 , H04B10/25 , H04B10/548 , H04B10/564 , H04B10/61 , G02F1/21 , G02F1/225
摘要： A light source (12) outputs a light (L1). A branching unit (13) branches the light (L1) output from the light source (12) into a first branched light (L2) and a local oscillation light (LO). A modulator (14) modulates the first branched light (L2) to output an optical signal (LS1). A receiver (15) causes the local oscillation light (LO) to interfere with an optical signal (LS2) to receive the optical signal (LS2). An EDFA (16) amplifies the optical signal (LS1) output from the modulator (14). An excitation light source (17) outputs an excitation light (Le) exciting the EDFA (16) to the EDFA (16). An optical attenuator (18) attenuates optical power of the optical signal (LS1) amplified by the EDFA (16). A control unit (11) controls attenuation of the optical signal (LS1) in the optical attenuator (18). The control unit (11) adjusts the attenuation of the optical signal (LS1) and adjusts an output of the excitation light (Le) from the excitation light source (17).

4. 发明授权

US10644478B2 Light source module and method of manufacturing light source module 有权
公开(公告)号：US10644478B2
公开(公告)日：2020-05-05
申请号：US15757525
申请日：2016-09-12
申请人： NEC CORPORATION
发明人： Isao Tomita
IPC分类号： H01S5/02 , H01S5/022 , H01S5/024 , H01S5/14 , G02B27/09 , H01S5/0687
CPC分类号： H01S5/022 , G02B27/0977 , H01S5/02446 , H01S5/142 , H01S5/02216 , H01S5/02284 , H01S5/02415 , H01S5/0687
摘要： Provided are: a light source module capable of having a reduced packaging area size while ensuring wavelength precision; and a method for manufacturing this light source module. This light source module is provided with a light amplifying means, a wavelength monitoring means for detecting a change in wavelength of light outputted from the light amplifying means, and a reflecting means which is disposed between the light amplifying means and the wavelength monitoring means, and which is for reflecting the light outputted from the light amplifying means toward the wavelength monitoring means.

5. 发明授权

US09606310B2 Sealing structure of optical communication module and sealing method of the same 有权
公开(公告)号：US09606310B2
公开(公告)日：2017-03-28
申请号：US15036670
申请日：2014-11-10
申请人： NEC Corporation
发明人： Isao Tomita
IPC分类号： G02B6/42 , B23K1/20
CPC分类号： G02B6/4248 , B23K1/20 , G02B6/4204 , G02B6/4238 , G02B6/4239 , G02B6/4249 , G02B6/4251 , G02B6/4265
摘要： In a sealing structure of optical communication module using a sealing material, it has been difficult to secure the reliability without influencing optical fiber characteristics. A sealing structure of optical communication module of the present invention comprises: a cylindrical barrel unit fixed to a package; a cylindrical flange which is disposed inside the barrel unit and through which an optical fiber pierces; and a sealing material disposed between the barrel unit and the flange, wherein the flange has on its surface a plurality of regions having different surface conditions, and the sealing material is disposed in only one of the regions.

6. 发明申请

US20210075188A1 PLUGGABLE OPTICAL MODULE AND OPTICAL COMMUNICATION SYSTEM 有权
公开(公告)号：US20210075188A1
公开(公告)日：2021-03-11
申请号：US16951424
申请日：2020-11-18
申请人： NEC CORPORATION
发明人： Isao Tomita
IPC分类号： H01S5/022 , H04B10/40 , H04B10/61 , H01S5/14 , G02B6/42 , G02F2/00 , H01S5/50
摘要： A pluggable optical connector is configured to be insertable into and removable from an optical communication apparatus, and to be capable of communicating a modulation signal and a data signal with the optical communication apparatus. A wavelength-tunable light source is configured to output an output light and a local oscillation light. An optical transmission unit is configured to output an optical signal generated by modulating the output light in response to the modulation signal. An optical reception unit is configured to demodulate an optical signal received by using the local oscillation light to the data signal. Pluggable optical receptors are configured in such a manner that an optical fiber is insertable into and removable from the pluggable optical receptors, and configured to be capable of outputting the optical signal to the optical fiber and transferring the optical signal received thorough the optical fiber to the optical reception unit.

7. 发明授权

US10890726B2 Pluggable optical module and optical communication system 有权
公开(公告)号：US10890726B2
公开(公告)日：2021-01-12
申请号：US16657300
申请日：2019-10-18
申请人： NEC Corporation
发明人： Isao Tomita
IPC分类号： G02B6/42 , H04B10/40 , H04B10/61 , H01S5/022 , H01S5/14 , G02F2/00 , G02F1/01 , H01S5/50 , H01S5/00
摘要： A pluggable optical connector is configured to be insertable into and removable from an optical communication apparatus, and to be capable of communicating a modulation signal and a data signal with the optical communication apparatus. A wavelength-tunable light source is configured to output an output light and a local oscillation light. An optical transmission unit is configured to output an optical signal generated by modulating the output light in response to the modulation signal. An optical reception unit is configured to demodulate an optical signal received by using the local oscillation light to the data signal. Pluggable optical receptors are configured in such a manner that an optical fiber is insertable into and removable from the pluggable optical receptors, and configured to be capable of outputting the optical signal to the optical fiber and transferring the optical signal received thorough the optical fiber to the optical reception unit.

8. 发明授权

US11909448B2 Single-fiber bi-directional optical transceiver sub-assembly 有权
公开(公告)号：US11909448B2
公开(公告)日：2024-02-20
申请号：US17439519
申请日：2019-11-22
申请人： NEC Corporation
发明人： Isao Tomita
IPC分类号： H04B10/00 , H04B10/40 , G02B6/42 , H04B10/2581
CPC分类号： H04B10/40 , G02B6/4206 , G02B6/4246 , H04B10/2581
摘要： Provided is a single-fiber bi-directional optical transceiver sub-assembly capable of improving the wavelength separation characteristics of a multiplexing/demultiplexing filter while also attaining a compact size. A single-fiber bi-directional optical transceiver sub-assembly is provided with a housing, an optical receptacle, a multiplexing/demultiplexing filter, a receiving-side photoelectric converter, a transmitting-side photoelectric converter, an isolator, and a collimating lens. The multiplexing/demultiplexing filter is disposed on the optical path between the optical receptacle and the transmitting-side photoelectric converter and on the optical path between the optical receptacle and the receiving-side photoelectric converter. The isolator passes optical signals outputted from the transmitting-side photoelectric converter and blocks optical signals proceeding to the transmitting-side photoelectric converter. The collimating lens is disposed at a position that fits into the external size of the housing, and collimates incident light on the multiplexing/demultiplexing filter.

9. 发明授权

US10917172B2 Pluggable optical module, optical communication system, and control method of pluggable optical module 有权
公开(公告)号：US10917172B2
公开(公告)日：2021-02-09
申请号：US16627617
申请日：2018-05-25
申请人： NEC Corporation
发明人： Isao Tomita
IPC分类号： H04B10/00 , H04B10/079 , H04B10/61 , H04B10/564 , H04B10/548 , H04B10/25 , G02F1/21 , G02F1/225
摘要： A light source outputs a light. A branching unit branches the light output from the light source into a first branched light and a local oscillation light. A modulator modulates the first branched light to output an optical signal. A receiver causes the local oscillation light to interfere with an optical signal to receive the optical signal. An EDFA amplifies the optical signal output from the modulator. An excitation light source outputs an excitation light exciting the EDFA to the EDFA. An optical attenuator attenuates optical power of the optical signal amplified by the EDFA. A control unit controls attenuation of the optical signal in the optical attenuator. The control unit adjusts the attenuation of the optical signal and adjusts an output of the excitation light from the excitation light source.

10. 发明申请

US20130266264A1 OPTICAL MODULE AND METHOD FOR MAKING THE SAME 审中-公开
标题翻译：光学模块及其制作方法
公开(公告)号：US20130266264A1
公开(公告)日：2013-10-10
申请号：US13991473
申请日：2011-12-16
申请人： NEC Corporation
发明人： Isao Tomita
IPC分类号： G02B6/42
CPC分类号： G02B6/4292 , G02B6/4214 , G02B6/4224 , G02B6/4249 , Y10T29/49826
摘要： An optical module includes a module substrate; a first optical component disposed on the module substrate; and a second optical component disposed apart from the first optical component in a direction perpendicular to the module substrate, wherein the first optical component includes a first optical main part facing and optically connecting to the second optical component, and a first peripheral part located in the periphery of the first optical main part without facing the second optical component; the first peripheral part includes a first fiducial mark as a reference for a disposed position of the first optical component; the second optical component includes a second fiducial mark as a reference for a disposed position of the second optical component; and the first fiducial mark and the second fiducial mark are aligned on the same straight line when they are projected on to a plane parallel to the module substrate.
摘要翻译：光学模块包括模块基板; 设置在所述模块基板上的第一光学部件; 以及第二光学部件，其在与所述模块基板垂直的方向上与所述第一光学部件分离设置，所述第一光学部件包括面向所述第二光学部件的光学连接的第一光学主要部件，第一光学主体的周边，而不面对第二光学部件; 第一周边部分包括作为第一光学部件的布置位置的参考的第一基准标记; 第二光学部件包括作为第二光学部件的设置位置的基准的第二基准标记; 并且当第一基准标记和第二基准标记投射到平行于模块基板的平面上时，第一基准标记和第二基准标记在相同的直线上对准。

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