公开(公告)号：US20210135422A1

公开(公告)日：2021-05-06

申请号：US17148645

申请日：2021-01-14

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Noriyuki YOKOUCHI ,  Kengo WATANABE

IPC: H01S3/067 ,  H01S3/081

Abstract: An optical power transmission apparatus includes: a light emitting unit including a first optical gain generating means and a first light reflecting means; an optical fiber; a second light reflecting means; and a light receiving means. Further, the second light reflecting means is arranged nearer to the light receiving means than the optical fiber is, a first laser resonator is formed, between the first light reflecting means and the second light reflecting means, by optical connection between the first optical gain generating means and the optical fiber, and first laser light generated by the first laser resonator is configured to be incident on the light receiving means.

公开(公告)号：US20140078580A1

公开(公告)日：2014-03-20

申请号：US14089661

申请日：2013-11-25

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideaki HASEGAWA ,  Masaki FUNABASHI ,  Kazuaki KIYOTA ,  Takeshi AKUTSU ,  Noriyuki YOKOUCHI ,  Kazutaka NARA

IPC: H01S5/042

CPC classification number: H01S5/0425 ,  H01S5/026 ,  H01S5/0261 ,  H01S5/125 ,  H01S5/2205 ,  H01S5/2231 ,  H01S5/5018 ,  H01S5/5036

Abstract: An optical amplifier device comprising an input/output section that inputs incident light and outputs emission light; a polarized light splitting section that causes a polarized light component of the incident light input from the input/output section to branch, and outputs first polarization mode light having a first polarization and second polarization mode light having a second polarization different from the first polarization; a polarization converting section that receives the first polarization mode light, converts the first polarization to the second polarization, and outputs first polarization converted light; and an optical amplifying section that amplifies the first polarization converted light input to one end of a waveguide, outputs the resulting amplified first polarization converted light from another end of the waveguide, amplifies the second polarization mode light input to the other end of the waveguide, and outputs the resulting amplified second polarization mode light from the one end of the waveguide.

Abstract translation: 一种光放大器装置，包括输入/​​输出部分，其输入入射光并输出发射光; 偏振光分离部，其使从所述输入输出部输入的入射光的偏振光分量分支，并输出具有第一偏振光和第二偏振光的第一偏振光，所述第一偏振光与所述第一偏振光具有第二偏振; 偏振转换部，其接收所述第一偏振光，将所述第一偏振转换为所述第二偏振，并输出第一偏振变换光; 以及光放大部，其对输入到波导的一端的第一偏振光转换光进行放大，从所述波导的另一端输出产生的放大后的第一偏振光变换光，放大输入到所述波导的另一端的第二偏振光， 并从波导的一端输出产生的放大的第二偏振模式光。

公开(公告)号：US20220371597A1

公开(公告)日：2022-11-24

申请号：US17770234

申请日：2020-10-02

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hirokazu NARUI ,  Kazuhiro FUNAKOSHI ,  Noriyuki YOKOUCHI ,  Jun MIURA

IPC: B60W40/04 ,  B60W50/14 ,  B60W60/00 ,  H04W4/44

Abstract: A driving support system uses information related to objects acquired by a sensor disposed external to a subject vehicle and position information of the subject vehicle to calculate information related to objects in a periphery of the subject vehicle, and provides a warning, position information or distance information to an autonomous driving control unit or a driver of the subject vehicle. A road side information processing unit or a vehicle control unit calculates vehicle periphery information related to objects in the periphery of the subject vehicle, using the information related to objects acquired from the sensor and the position of the subject vehicle detected by the first position detection unit.

公开(公告)号：US20160285237A1

公开(公告)日：2016-09-29

申请号：US15177175

申请日：2016-06-08

Applicant: FURUKAWA ELECTRIC CO., LTD.

Inventor： Hideaki HASEGAWA ,  Noriyuki YOKOUCHI ,  Taketsugu SAWAMURA ,  Satoshi IRINO ,  Junji YOSHIDA

IPC: H01S5/14 ,  H01S3/30 ,  H01S5/024 ,  H01S3/067 ,  H01S3/094

CPC classification number: H01S5/146 ,  H01S3/06754 ,  H01S3/094011 ,  H01S3/094096 ,  H01S3/302 ,  H01S5/02208 ,  H01S5/02248 ,  H01S5/02415 ,  H01S5/0652 ,  H01S5/141 ,  H01S5/142 ,  H01S2301/03

Abstract: A method of designing a semiconductor laser device includes: controlling a distance between the output-side reflection unit and the second reflection unit and an effective optical feedback κ to the semiconductor laser element, the effective optical feedback κ defined by a below-presented formula (1) including a circulating time τ of the light in the semiconductor laser element, a reflectivity R1 of the output-side reflection unit, and a reflectivity R2 of the second reflection unit; selecting a semiconductor laser device in which an LFF period is equal to or smaller than 20 ns as a semiconductor laser device in which high speed switching occurs between an FBG mode and an FP mode; and using the selected semiconductor laser device as an semiconductor laser device oscillating in a coherent collapse mode. κ=(1/τ)×(1−R1)×(R2/R1)1/2  (1)

Abstract translation: 一种半导体激光器件的设计方法，其特征在于，选择能够以FBG和FP模式之间快速切换的半导体激光器件，并以该器件以相干折叠模式振荡的方式使用半导体激光器件。 其中，通过控制从输出侧反射装置到第二反射装置的距离，半导体激光装置的LFF周期设定为等于或小于20ns，并将半导体激光元件的有效返回光量（κ）定义为 以下表达式：κ=（1 /τ）×（1-R1）×（R2 / R1）½其中τ表示半导体激光元件中的光的循环时间; R1表示输出侧反射装置的反射率; R2表示第二反射装置的反射率。