公开(公告)号：US20150015939A1

公开(公告)日：2015-01-15

申请号：US14308442

申请日：2014-06-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sun-Hyok CHANG ,  Hwan-Seok CHUNG

IPC: H01S3/094

CPC classification number: H01S3/094003 ,  G02B6/2804 ,  H01S3/094053 ,  H01S3/094069 ,  H01S3/09415

Abstract: An optical pumping apparatus for few-mode fiber amplification is provided. The optical pumping apparatus includes an optical pump source configured to generate an optical pump; an optical power divider configured to divide an optical power of the optical pump from the optical pump source so as to output several optical pumps with uniformly distributed optical power; and a modal multiplexer configured to receive the optical pumps from the optical power divider through a plurality of single-mode fibers, multiplex the received optical pumps, apply a multiplexed optical pump to each mode of a few-mode fiber (FMF) amplifier, and adjust a gain difference among modes, wherein the FMF amplifier obtains a gain by amplifying an optical signal with the optical pump.

Abstract translation: 提供了一种用于多模光纤放大的光泵装置。 光泵装置包括被配置为产生光泵的光泵源; 光功率分配器，被配置为将光泵浦的光功率与光泵浦源分开，以输出具有均匀分布的光功率的多个光泵; 以及模式多路复用器，被配置为通过多个单模光纤从光功率分配器接收光泵，复用所接收的光泵，将复用的光泵应用于多模光纤（FMF）放大器的每种模式，以及 调整模式之间的增益差，其中FMF放大器通过用光泵放大光信号来获得增益。

公开(公告)号：US20150030325A1

公开(公告)日：2015-01-29

申请号：US14250029

申请日：2014-04-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Sun-Hyok CHANG ,  Hwan-Seok CHUNG

IPC: H04J14/04

CPC classification number: H04J14/04 ,  H04B10/2581

Abstract: An optical transmission apparatus includes: a transmission light source configured to generate single-mode light of a specific wavelength; a power coupler configured to split the light generated by the transmission light source into a plurality of light sections; at least one modulator configured to modulate an electrical signal carrying different data into at least one optical signal using the light section from the power coupler; and a mode multiplexer configured to convert the modulated optical signal into a different mode, and to transmit the mode-converted optical signal to a fiber.

Abstract translation: 光传输装置包括：发送光源，被配置为产生特定波长的单模光; 功率耦合器，被配置为将由所述透射光源产生的光分成多个光部; 至少一个调制器，被配置为使用来自所述功率耦合器的所述光部分，将承载不同数据的电信号调制成至少一个光信号; 以及模式多路复用器，被配置为将调制的光信号转换成不同的模式，并将模式转换的光信号传输到光纤。

公开(公告)号：US20140294401A1

公开(公告)日：2014-10-02

申请号：US14082856

申请日：2013-11-18

Applicant: Electronics and Telecommunications Research Institute

Inventor： Hwan-Seok CHUNG ,  Sun-Hyok CHANG

IPC: H04B10/556

CPC classification number: H04B10/5561 ,  H04B10/5053 ,  H04B10/50575

Abstract: An optical transmitter including an optical modulator comprising a first modulator and a second modulator connected in parallel to each other in the form of a Mach-Zehnder interferometer, and a phase shifter connected to the second modulator in series, a high-speed generator configured to generate a single carrier signal or multi-carrier signals and apply the generated single carrier signal or multi-carrier signals to the optical modulator, and an output stabilizer configured to stabilize a final output optical signal of the optical modulator by controlling a bias of each of the first modulator, the second modulator and the phase shifter.

Abstract translation: 一种光发射机，包括一个光调制器，包括一个以Mach-Zehnder干涉仪形式并联连接的第一调制器和第二调制器，以及一个与第二调制器串联连接的移相器，一个高速发生器被配置成 生成单载波信号或多载波信号，并将生成的单载波信号或多载波信号施加到光调制器，以及输出稳定器，其被配置为通过控制光调制器的每一个的偏置来稳定光调制器的最终输出光信号 第一调制器，第二调制器和移相器。

公开(公告)号：US20140199075A1

公开(公告)日：2014-07-17

申请号：US14152449

申请日：2014-01-10

Applicant: Electronics and Telecommunications Research Institute

Inventor： Joon-Young HUH ,  Sun-Hyok CHANG ,  Hwan-Seok CHUNG ,  Kwang-Joon KIM ,  Jong-Hyun LEE

IPC: H04J14/02 ,  H04B10/50

CPC classification number: H04B10/506 ,  H04B10/572 ,  H04J14/0221

Abstract: An apparatus and method for controlling a multicarrier light source generator are provided. The apparatus includes N-light source input units configured to input light sources to a multicarrier light source generator that generates multicarrier light sources at a frequency interval of F [Hz], and a control unit configured to adjust the frequency interval of the multicarrier light sources generated from the multicarrier light source generator, by adjusting a frequency interval between the light sources input from the N-light source input unit as F/N [Hz].

Abstract translation: 提供一种用于控制多载波光源发生器的装置和方法。 该装置包括N个光源输入单元，其被配置为将光源输入到以F [Hz]的频率间隔产生多载波光源的多载波光源发生器，以及控制单元，被配置为调整多载波光源的频率间隔 通过将从N光源输入单元输入的光源之间的频率间隔调整为F / N [Hz]，从多载波光源发生器产生。