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公开(公告)号：EP3799361A1
公开(公告)日：2021-03-31
申请号：EP19825181.1
申请日：2019-06-26
摘要： A service start method is a service start method executed by a communication system, and the service start method includes: a step of acquiring identification information or authentication information of a device, a customer, or a service; a step of making authentication of the device, the customer, or the service to succeed when the identification information or the authentication information has been acquired together with information that is associated with the customer or a customer's location in advance, or when the identification information or the authentication information has been acquired from a terminal or a line that is associated with the customer in advance; and a step of starting provision of the service for the device for which the authentication has succeeded.
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公开(公告)号：EP3764488A1
公开(公告)日：2021-01-13
申请号：EP19763524.6
申请日：2019-02-28
发明人： SHINDO, Takahiko , FUJIWARA, Naoki , SANO, Kimikazu , ISHII, Hiroyuki , MATSUZAKI, Hideaki , YAMADA, Takashi , HORIKOSHI, Kengo
摘要： A semiconductor optical integrated element (AXEL) designed to output further intensified light dispenses with an additional inspection process and prevents an increase in manufacturing costs. A method for manufacturing such a semiconductor optical integrated element, includes the step of forming a semiconductor wafer by arranging a plurality of the semiconductor optical integrated elements two-dimensionally such that optical axes of the semiconductor optical integrated elements are aligned. The semiconductor optical integrated elements each include a DFB laser, an EA modulator, and a SOA that are monolithically integrated on an identical substrate and that are disposed in an order of the DFB laser, the EA modulator, and the SOA along a light emitting direction. The method further includes the steps of cleaving the semiconductor wafer along a plane orthogonal to the light emitting direction to form a semiconductor bar including a plurality of the semiconductor optical integrated elements arranged one-dimensionally along a direction orthogonal to the light emitting direction such that the semiconductor optical integrated elements adjacent to each other share an identical cleavage end face as a light emission surface, inspecting each of the semiconductor optical integrated elements of the semiconductor bar by energizing and driving the SOA and the DFB laser through a connection wiring part that electrically connects an electrode of the SOA and an electrode of the DFB laser together, and separating out each of the semiconductor optical integrated elements of the semiconductor bar at a boundary line between the adjacent semiconductor optical integrated elements after the inspection to cut the connection wiring part electrically connecting the electrode of the SOA and the electrode of the DFB laser and electrically isolate the SOA and the DFB laser from each other.
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公开(公告)号：EP1978653B1
公开(公告)日：2018-06-20
申请号：EP07707514.1
申请日：2007-01-26
IPC分类号： H04J14/02
CPC分类号： H04J14/0227 , H04B10/0793 , H04B10/07957 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： According to the present invention, a star-type wavelength multiplexed communication network using optical TX/RX devices capable of assigning the wavelengths can be provided without using the monitoring light. In an embodiment of the present invention, an optical TX/RX device for transmitting and receiving a wavelength-multiplexed signal light comprises an optical receiver capable of varying the RX wavelength and an optical transmitter capable of varying the TX wavelength. The optical TX/RX device detects RX wavelengths not in use via the optical receiver, and assigns the RX wavelength of the optical receiver to one of the RX wavelengths not-in-use, and assigns the TX wavelength of the optical transmitter to a TX wavelength corresponding to the RX wavelength according to a correspondence table of TX and RX wavelengths in the memory. Then, the optical TX/RX device transmits a signal light on this TX wavelength, and detects the response on the RX wavelength. If the response is detected, communication is initiated using the assigned TX wavelength and the RX wavelength. If the response is not detected, the operation is repeated from the detection of RX wavelengths not in use to the transmission of the signal light on TX wavelength again.
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公开(公告)号：EP2453295B1
公开(公告)日：2014-09-10
申请号：EP10796926.3
申请日：2010-07-09
发明人： GOH, Takashi , DOI, Yoshiyuki , MINO, Shinji , TSUZUKI, Ken , YAMAZAKI, Hiroshi , YAMADA, Takashi
IPC分类号： H04B10/556
CPC分类号： G02F1/0327 , G02B2006/12142 , G02B2006/12159 , G02F1/225 , G02F2201/126 , G02F2203/20 , G02F2203/21
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5.发明公开
公开(公告)号：EP1978653A1
公开(公告)日：2008-10-08
申请号：EP07707514.1
申请日：2007-01-26
IPC分类号： H04B10/08
CPC分类号： H04J14/0227 , H04B10/0793 , H04B10/07957 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： According to the present invention, a star-type wavelength multiplexed communication network using optical TX/RX devices capable of assigning the wavelengths can be provided without using the monitoring light. In an embodiment of the present invention, an optical TX/RX device for transmitting and receiving a wavelength-multiplexed signal light comprises an optical receiver capable of varying the RX wavelength and an optical transmitter capable of varying the TX wavelength. The optical TX/RX device detects RX wavelengths not in use via the optical receiver, and assigns the RX wavelength of the optical receiver to one of the RX wavelengths not-in-use, and assigns the TX wavelength of the optical transmitter to a TX wavelength corresponding to the RX wavelength according to a correspondence table of TX and RX wavelengths in the memory. Then, the optical TX/RX device transmits a signal light on this TX wavelength, and detects the response on the RX wavelength. If the response is detected, communication is initiated using the assigned TX wavelength and the RX wavelength. If the response is not detected, the operation is repeated from the detection of RX wavelengths not in use to the transmission of the signal light on TX wavelength again.
摘要翻译： 根据本发明，可以在不使用监视光的情况下提供使用能够分配波长的光TX / RX装置的星型波长复用通信网络。 在本发明的实施例中，用于发送和接收波分复用信号光的光TX / RX装置包括能够改变RX波长的光接收机和能够改变TX波长的光发射机。 光学TX / RX设备通过光接收机检测未使用的RX波长，并将光接收机的RX波长分配给不使用的RX波长之一，并将光发射机的TX波长分配给TX 根据存储器中TX和RX波长的对应表，对应于RX波长的波长。 然后，光TX / RX设备在该TX波长上发送信号光，并检测RX波长的响应。 如果检测到响应，则使用分配的TX波长和RX波长来启动通信。 如果没有检测到响应，则从检测不使用的RX波长再次发送TX波长的信号光，重复该操作。
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公开(公告)号：EP2453295A1
公开(公告)日：2012-05-16
申请号：EP10796926.3
申请日：2010-07-09
发明人： GOH, Takashi , DOI, Yoshiyuki , MINO, Shinji , TSUZUKI, Ken , YAMAZAKI, Hiroshi , YAMADA, Takashi
CPC分类号： G02F1/0327 , G02B2006/12142 , G02B2006/12159 , G02F1/225 , G02F2201/126 , G02F2203/20 , G02F2203/21
摘要： In a nest MZI modulator in which each arm includes a child MZI, the power consumption in both of a relative phase adjusting section itself for adjusting the relative phase of an optical signal from a child MZI and the driving circuit of a relative phase adjusting section is reduced. The hybrid integrated-type nest MZI modulator of the embodiment 1a is configured so that, instead of placing a relative phase adjusting section in a parent MZI, a bias electrode Bias90° in which an electric field is applied in the same direction (or in an opposite direction) to the polarization direction in both of the upper and lower arms and a GND electrode are placed in each child MZI (see Fig. 4B ). The bias electrode Bias90° and the GND electrode provided in each child MZI constitute the entirety of a relative phase adjusting section. The optical signals are subjected to a phase change after the output from the child MZI (see Fig. 1A ), because such relative phase adjusting section can subject the optical signals of the upper and lower arms of the child MZI to a shift change in the same direction, respectively.
摘要翻译： 在其中每个臂包括子MZI的嵌套MZI调制器中，用于调整来自子MZI的光信号的相对相位和相对相位调节部分的驱动电路的相对相位调整部分本身的功耗是 降低。 实施例1a的混合集成型嵌套MZI调制器被配置为使得不是将母相MZI中的相对相位调整部分放置在相同方向上施加电场的偏置电极Bias90° 相反方向）和上臂和下臂中的偏振方向，并且将GND电极放置在每个子MZI中（参见图4B）。 每个子MZI中设置的偏置电极Bias90°和GND电极构成相对相位调整部的整体。 光信号在从子MZI（参见图1A）的输出之后经历相变，因为这种相对相位调整部分可以使儿童MZI的上臂和下臂的光信号在 相同方向。
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