公开(公告)号：US20130243440A1

公开(公告)日：2013-09-19

申请号：US13734392

申请日：2013-01-04

Applicant: FUJITSU LIMITED

Inventor： Tsuyoshi YAMAMOTO

IPC: H04B10/12

CPC classification number: H04B10/2504 ,  H04B10/0773

Abstract: An optical transmission system includes at least a first optical link to transmit a first data signal as a part of a multi-lane signal and a second optical link to transmit a second data signal as another part of the multi-lane signal; on the transmission side, a reference clock is constantly applied to the first data signal of the first optical link, and a delay clock is applied to the second data signal responsive to a control signal on the second optical link; on the receiving side, the phase of a first clock signal detected from the first data signal received on the first optical link and the phase of a second clock signal detected from the second data signal received on the second optical link are compared, and the control signal is detected from the comparison result.

Abstract translation: 光传输系统至少包括作为多通道信号的一部分传输第一数据信号的第一光链路和作为多通道信号的另一部分传输第二数据信号的第二光链路; 在发送侧，对第一光链路的第一数据信号不断施加基准时钟，响应于第二光链路上的控制信号，向第二数据信号施加延迟时钟; 在接收侧，比较从在第一光链路上接收的第一数据信号检测的第一时钟信号的相位和从在第二光链路上接收的第二数据信号检测的第二时钟信号的相位，并且控制 从比较结果检测信号。

公开(公告)号：US20140017841A1

公开(公告)日：2014-01-16

申请号：US14027243

申请日：2013-09-16

Applicant: FUJITSU LIMITED

Inventor： Tsuyoshi YAMAMOTO ,  Hisao SUDO

IPC: H01S5/34

CPC classification number: H01S5/34 ,  B82Y20/00 ,  H01S5/0425 ,  H01S5/06226 ,  H01S5/2081 ,  H01S5/209 ,  H01S5/22 ,  H01S5/3086 ,  H01S5/3412

Abstract: A p-type cladding layer (3) of p-type semiconductor is formed over a substrate. An active layer (5) including a p-type semiconductor region is disposed over the p-type cladding layer. A buffer layer (10) of non-doped semiconductor is disposed over the active layer. A ridge-shaped n-type cladding layer (11) of n-type semiconductor is disposed over a partial surface of the buffer layer. The buffer layer on both sides of the ridge-shaped n-type cladding layer is thinner than the buffer layer just under the ridge-shaped n-type cladding layer.

Abstract translation: 在衬底上形成p型半导体的p型覆层（3）。 包括p型半导体区域的有源层（5）设置在p型覆层上。 非有源半导体的缓冲层（10）设置在有源层上。 n型半导体的脊状n型覆盖层（11）设置在缓冲层的部分表面上。 脊状n型包覆层的两侧的缓冲层比刚好在脊形n型包覆层下方的缓冲层薄。

公开(公告)号：US20130213705A1

公开(公告)日：2013-08-22

申请号：US13756898

申请日：2013-02-01

Applicant: FUJITSU LIMITED

Inventor： Mitsuo SUEHIRO ,  Tsuyoshi YAMAMOTO

IPC: H05K1/02 ,  H05K3/34 ,  H05K3/00

CPC classification number: H05K1/0296 ,  H05K3/0044 ,  H05K3/0047 ,  H05K3/341 ,  H05K3/3447 ,  H05K2201/09827 ,  H05K2203/0415 ,  Y10T29/49124 ,  Y10T29/49144

Abstract: A method of fabricating a printed-wiring board, includes: forming a through-hole across a thickness of a printed-wiring board, the forming of the through-hole including forming a first opening part having a first diameter, forming a second opening part having a second diameter, and forming a third opening part provided between the first opening part and the second opening part, wherein the second diameter is larger than the first diameter, and the third opening part is formed in a tapered shape whose diameter decreases toward the first opening part from the second opening part.

Abstract translation: 一种制造印刷电路板的方法，包括：在印刷电路板的厚度上形成通孔，形成通孔，该通孔包括形成具有第一直径的第一开口部，形成第二开口部 具有第二直径，并且形成设置在第一开口部和第二开口部之间的第三开口部，其中第二直径大于第一直径，第三开口部形成为锥形，其直径朝向 第一开口部分从第二开口部分开始。

公开(公告)号：US20150381277A1

公开(公告)日：2015-12-31

申请号：US14728485

申请日：2015-06-02

Applicant: FUJITSU LIMITED

Inventor： Takashi SHIMIZU ,  Tsuyoshi YAMAMOTO

IPC: H04B10/079 ,  H04B10/572 ,  H04B10/60 ,  H04J14/02

CPC classification number: H04B10/572 ,  H04B10/079 ,  H04J14/0295

Abstract: An optical transmission system includes: a first light source configured to output a light wave of a first wavelength among a plurality of wavelengths; a second light source configured to output a light wave of a second wavelength; and a first detection section configured to detect abnormality in the light wave from the first light source, wherein upon detection of abnormality, a multiplexed optical signal including an optical signal of a modulated light wave generated using the light wave from the second light source in place of an optical signal of a modulated light wave generated using the light wave from the first light source is transmitted.

Abstract translation: 一种光传输系统，包括：第一光源，被配置为输出多个波长中的第一波长的光波; 第二光源，被配置为输出第二波长的光波; 以及第一检测部，被配置为检测来自第一光源的光波的异常，其中，在检测到异常时，包括使用来自第二光源的光波产生的调制光波的光信号的复用光信号到位 发送使用来自第一光源的光波产生的调制光波的光信号。