公开(公告)号：US08774243B2

公开(公告)日：2014-07-08

申请号：US13022985

申请日：2011-02-08

Applicant: Namje Kim ,  Kyung Hyun Park ,  Young Ahn Leem ,  Chul-Wook Lee ,  Sang-Pil Han ,  Dong-Hun Lee ,  Min Yong Jeon

Inventor： Namje Kim ,  Kyung Hyun Park ,  Young Ahn Leem ,  Chul-Wook Lee ,  Sang-Pil Han ,  Dong-Hun Lee ,  Min Yong Jeon

IPC: H01S5/00

CPC classification number: H01S5/06258 ,  H01S5/0612 ,  H01S5/06256 ,  H01S5/1096 ,  H01S5/1215 ,  H01S5/2222

Abstract: Provided are a dual mode semiconductor laser and a terahertz wave apparatus using the same. The dual mode semiconductor laser includes a distributed feedback laser structure section including a first diffraction grating on a substrate and a distributed Bragg reflector laser structure section including a second diffraction grating on the substrate. A first wavelength oscillated by the distributed feedback laser structure section and a second wavelength oscillated by the distributed Bragg reflector laser structure section are different from each other, and the distributed feedback laser structure section and the distributed Bragg reflector laser structure section share the same gain medium with each other.

Abstract translation: 提供了一种双模式半导体激光器和使用该双模半导体激光器的太赫兹波装置。 双模式半导体激光器包括分布反馈激光器结构部分，其包括在衬底上的第一衍射光栅和在衬底上包括第二衍射光栅的分布式布拉格反射器激光器结构部分。 由分布式反馈激光器结构部分振荡的第一波长和由分布布拉格反射器激光器结构部分振荡的第二波长彼此不同，分布反馈激光器结构部分和分布式布拉格反射器激光器结构部分共享相同的增益介质 与彼此。

公开(公告)号：US08644714B2

公开(公告)日：2014-02-04

申请号：US13325076

申请日：2011-12-14

Applicant: Oh-Kee Kwon ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem ,  Yongsoon Baek

Inventor： Oh-Kee Kwon ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem ,  Yongsoon Baek

IPC: H04B10/12

CPC classification number: H04J14/02 ,  G02B6/12007 ,  G02B6/124 ,  G02B6/2813 ,  H01S5/026 ,  H01S5/0265 ,  H01S5/0268 ,  H01S5/1237 ,  H01S5/125 ,  H01S5/4012 ,  H01S5/4087 ,  H04B10/506

Abstract: Provided is a multi-wavelength optical source generator. The multi-wavelength optical source generator includes: a gain part generating a plurality of lights through a plurality of gain waveguides; a reflective part transmitting or reflecting lights provided from each of the plurality of gain waveguides according to a wavelength; and a multiplexing part multiplexing a plurality of lights transmitted and outputted through the reflective part.

Abstract translation: 提供了一种多波长光源发生器。 多波长光源发生器包括：通过多个增益波导产生多个光的增益部分; 根据波长从多个增益波导中的每一个提供的发射或反射光的反射部分; 以及多路复用部分，复用通过反射部分传输和输出的多个光。

公开(公告)号：US20130287054A1

公开(公告)日：2013-10-31

申请号：US13614280

申请日：2012-09-13

Applicant: Oh Kee KWON ,  Su Hwan Oh ,  Young Ahn Leem ,  O-Kyun Kwon ,  Young-Tak Han ,  Yongsoon Baek ,  Yun C. Chung

Inventor： Oh Kee KWON ,  Su Hwan Oh ,  Young Ahn Leem ,  O-Kyun Kwon ,  Young-Tak Han ,  Yongsoon Baek ,  Yun C. Chung

IPC: H01S5/30 ,  H01S5/34

CPC classification number: H01S5/22 ,  B82Y20/00 ,  H01S5/1039 ,  H01S5/1225 ,  H01S5/1243 ,  H01S5/2213 ,  H01S5/222 ,  H01S5/2231 ,  H01S5/3213 ,  H01S5/34306

Abstract: Distributed feedback-laser diodes are provided. The distributed feedback-laser diode may include a substrate, a lower cladding layer having a grating on the substrate, an active layer disposed on the lower cladding layer, a first upper cladding layer disposed on the active layer, a phase-shift region extending in a first direction on the first upper cladding layer, and a ridge waveguide layer extending in a second direction crossing the first direction on the phase-shift region.

Abstract translation: 提供分布式反馈激光二极管。 分布式反馈激光二极管可以包括基板，在基板上具有光栅的下包层，设置在下包层上的有源层，设置在有源层上的第一上包层， 第一上包层上的第一方向，以及在相移区域上与第一方向交叉的第二方向延伸的脊波导层。

公开(公告)号：US20110150018A1

公开(公告)日：2011-06-23

申请号：US12856172

申请日：2010-08-13

Applicant: Kyung Hyun PARK ,  Namje Kim ,  Young Ahn Leem ,  Sang-Pil Han ,  Chul-Wook Lee ,  Jaeheon Shin ,  Eundeok Sim ,  Yongsoon Baek

Inventor： Kyung Hyun PARK ,  Namje Kim ,  Young Ahn Leem ,  Sang-Pil Han ,  Chul-Wook Lee ,  Jaeheon Shin ,  Eundeok Sim ,  Yongsoon Baek

IPC: H01S5/343 ,  H01S5/06

CPC classification number: H01S5/1003 ,  B82Y20/00 ,  H01S1/02 ,  H01S5/02461 ,  H01S5/0261 ,  H01S5/028 ,  H01S5/0612 ,  H01S5/1092 ,  H01S5/125 ,  H01S5/3434

Abstract: Provided is a laser device. In the laser device, an active layer is connected to a stem core of a 1×2 splitter on a substrate, a first diffraction grating is coupled to a first twig core of the 1×2 splitter, and a second diffraction grating is coupled to a second twig core of the 1×2 splitter. An active layer-micro heater is designed to supply heat to the active layer. First and second micro heaters are designed to supply heats to the first and second diffraction gratings, respectively, thereby varying a Bragg wavelength.

Abstract translation: 提供了一种激光装置。 在激光装置中，有源层连接到基板上的1×2分离器的芯体芯，第一衍射光栅耦合到1×2分离器的第一分支芯，并且第二衍射光栅耦合到 1×2分路器的第二个枝芯。 有源层 - 微加热器被设计成向活性层提供热量。 第一和第二微加热器被设计成分别向第一和第二衍射光栅提供热量，从而改变布拉格波长。

公开(公告)号：US20110142082A1

公开(公告)日：2011-06-16

申请号：US12908611

申请日：2010-10-20

Applicant: Min Yong JEON ,  Kyung Hyun Park ,  Namje Kim ,  Young Ahn Leem ,  Sang-Pil Han ,  Yongsoon Baek ,  Jaeheon Shin

Inventor： Min Yong JEON ,  Kyung Hyun Park ,  Namje Kim ,  Young Ahn Leem ,  Sang-Pil Han ,  Yongsoon Baek ,  Jaeheon Shin

IPC: H01S3/30

CPC classification number: H01S3/06791 ,  H01S1/02 ,  H01S3/06712 ,  H01S3/0675 ,  H01S3/1304 ,  H01S3/1608 ,  H01S3/1618 ,  H01S2302/02

Abstract: Provided is a fiber laser generating Terahertz wave. The fiber laser comprises: a light source generating a laser beam as a pump light; first and second resonators first and second resonators first and second resonators resonating the laser beam into first and second wavelengths; and a coupler separating and supplying the laser beam generated in the light source to the first and second resonators and again feeding back the laser beam having the first and second wavelengths resonated respectively in the first and second resonators to the light source.

Abstract translation: 提供了产生太赫兹波的光纤激光器。 光纤激光器包括：产生激光束作为泵浦光的光源; 第一和第二谐振器第一和第二谐振器第一和第二谐振器将激光束谐振成第一和第二波长; 以及耦合器，将在光源中产生的激光束分离并提供给第一和第二谐振器，并且再次将具有分别在第一和第二谐振器中谐振的第一和第二波长的激光束反馈到光源。

公开(公告)号：US07933524B2

公开(公告)日：2011-04-26

申请号：US11500646

申请日：2006-08-08

Applicant: Kyung Hyun Park ,  Young Ahn Leem ,  Kwang Hyun Lee ,  Woo Young Choi

Inventor： Kyung Hyun Park ,  Young Ahn Leem ,  Kwang Hyun Lee ,  Woo Young Choi

IPC: H04B10/04

CPC classification number: H04B1/04 ,  H04B10/50 ,  H04B2001/0491

Abstract: Provided are an apparatus for and a method of generating millimeter waves, in which millimeter-wave generation and frequency up-conversion can be achieved at the same time using a single device. The apparatus includes a mode-locking laser diode (LD) which has a distributed feedback (DFB) sector and a gain sector and generates high-frequency optical pulses through a passive mode locking process, a modulator which modulates an external optical signal using an electric signal and injects the modulated optical signal to the mode-locking LD to lock the optical pulses, and a radio frequency (RF) locking signaling unit which injects the electric signal to the modulator.

Abstract translation: 提供了一种产生毫米波的装置和方法，其中可以使用单个装置同时实现毫米波发生和上变频。 该装置包括具有分布式反馈（DFB）扇区和增益扇区的锁模激光二极管（LD），并通过无源模式锁定工艺产生高频光脉冲，调制器使用电动调制外部光信号 信号并将经调制的光信号注入锁模LD以锁定光脉冲;以及射频（RF）锁定信令单元，其将电信号注入调制器。

公开(公告)号：US07489873B2

公开(公告)日：2009-02-10

申请号：US11284632

申请日：2005-11-22

Applicant: Young Ahn Leem ,  Dae Su Yee ,  Eun Deok Sim ,  Dong Churl Kim ,  Kyung Hyun Park

Inventor： Young Ahn Leem ,  Dae Su Yee ,  Eun Deok Sim ,  Dong Churl Kim ,  Kyung Hyun Park

IPC: H04B10/17

CPC classification number: H04B10/299 ,  H01S5/02248 ,  H01S5/4006

Abstract: The 3R regeneration system for a retiming, reshaping, and reamplifying an optical signal includes: first and second input ports in which a connected optical signal is input; an interferometer including first and second branches formed on a substrate, split at a common input node, combined at a common output node, semiconductor optical amplifiers in each of the first and second branches, the first branch being connected to the first input port, and the common input node being connected to the second input port; a self-pulsating laser diode monolithically integrated with the interferometer between one of the first input port and the first branch, and the second input port and the common input node on the substrate, receiving an optical signal, and outputting the optical signal regenerated by optical injection locking; and an output port connected to the common output node.

Abstract translation: 用于重新定标和重新放大光信号的3R再生系统包括：输入连接的光信号的第一和第二输入端口; 干涉仪，包括形成在基板上的第一和第二分支，在公共输入节点处分开，在公共输出节点处组合，第一和第二分支中的每一个中的半导体光放大器，第一分支连接到第一输入端口，以及 所述公共输入节点连接到所述第二输入端口; 在第一输入端口和第一分支之间与干涉仪单片集成的自脉动激光二极管，以及基板上的第二输入端口和公共输入节点，接收光信号，并输出由光学信号再生的光信号 注射锁定 以及连接到公共输出节点的输出端口。

公开(公告)号：US08853633B2

公开(公告)日：2014-10-07

申请号：US13309583

申请日：2011-12-02

Applicant: Sang-Pil Han ,  Kyung Hyun Park ,  Hyunsung Ko ,  Namje Kim ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem

Inventor： Sang-Pil Han ,  Kyung Hyun Park ,  Hyunsung Ko ,  Namje Kim ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem

IPC: G01J5/02 ,  G01J3/42

CPC classification number: G01J3/42

Abstract: Provided are a THz-wave generation/detection module and a device including the same, which increase heating efficiency and are miniaturized. The module includes a photomixer chip, a lens, a PCB, and a package. The photomixer chip includes an active layer, an antenna, and a plurality of electrode pads. The lens is disposed on the photomixer chip. The PCB includes a plurality of solder balls connected to the electrode pads, under the photomixer chip. The package surrounds a bottom and side of the PCB, and dissipates heating of the active layer, which is transferred from the electrode pad of the photomixer chip to the PCB, to outside.

Abstract translation: 提供了一种太赫兹波发生/检测模块和包括该太赫兹波发生/检测模块的装置，其提高了加热效率并且小型化。 该模块包括光混合器芯片，透镜，PCB和封装。 光敏混合器芯片包括有源层，天线和多个电极焊盘。 透镜设置在光敏混合器芯片上。 印刷电路板包括连接到电极焊盘的多个焊球，位于光敏混合器芯片下面。 该封装围绕PCB的底部和侧面，并且散发从光敏混合器芯片的电极焊盘传递到PCB的有源层的加热到外部。

公开(公告)号：US20130148975A1

公开(公告)日：2013-06-13

申请号：US13585537

申请日：2012-08-14

Applicant: Oh Kee KWON ,  Young-Tak Han ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem ,  Jang Uk Shin ,  Sang Ho Park ,  Yun C. Chung ,  Yongsoon Baek

Inventor： Oh Kee KWON ,  Young-Tak Han ,  Chul-Wook Lee ,  Dong-Hun Lee ,  Young Ahn Leem ,  Jang Uk Shin ,  Sang Ho Park ,  Yun C. Chung ,  Yongsoon Baek

IPC: H04B10/14

CPC classification number: H04B10/506 ,  H04B10/2575

Abstract: Provided is a multichannel transmitter optical module which includes a plurality of light source units configured to generate light, a plurality of an electro-absorption modulators (EAMs) configured to modulate the generated light to an optical signal through a radio frequency (RF) signal, a plurality of RF transmission lines configured to apply the RF signal to the EAMs, and a combiner configured to combine the modulated optical signal. The RF transmission lines are connected to the EAMs in a traveling wave (TW) electrode manner. The multichannel transmitter optical module has alleviated crosstalk and is compactly integrated to have a small size.

Abstract translation: 提供了一种多通道发射器光学模块，其包括被配置为产生光的多个光源单元，多个电吸收调制器（EAM），其被配置为通过射频（RF）信号将生成的光调制到光信号， 配置为将RF信号施加到EAM的多个RF传输线，以及被配置为组合调制的光信号的组合器。 RF传输线以行波（TW）电极的方式连接到EAM。 多通道发射机光模块减轻了串扰并且紧凑地集成以具有小尺寸。

公开(公告)号：US20130003771A1

公开(公告)日：2013-01-03

申请号：US13482247

申请日：2012-05-29

Applicant: Oh Kee KWON ,  Young Ahn Leem ,  Dong-Hun Lee ,  Chul-Wook Lee ,  Yongsoon Baek ,  Yun C. Chung

Inventor： Oh Kee KWON ,  Young Ahn Leem ,  Dong-Hun Lee ,  Chul-Wook Lee ,  Yongsoon Baek ,  Yun C. Chung

IPC: H01S5/187 ,  H01L21/02

CPC classification number: H01S5/124 ,  H01S5/1003 ,  H01S5/2077 ,  H01S2301/163

Abstract: Provided are a distributed feedback laser diode and a manufacturing method thereof. The distributed feedback laser diode includes a first area having a first grating layer disposed in a longitudinal direction, a second area disposed adjacent to the first area and having a second grating layer disposed in the longitudinal direction, and an active layer disposed over the first and second areas. Coupling coefficients of the first and second grating layers are made different in the first and second areas by a selective area growth method. The distributed feedback laser diode includes grating layers each having an asymmetric coefficient and is implemented within an optimal range capable of obtaining both a high front facet output and stable single mode characteristics. Thus, high manufacturing yield and low manufacturing cost can be achieved.

Abstract translation: 提供一种分布式反馈激光二极管及其制造方法。 分布式反馈激光二极管包括具有沿纵向设置的第一光栅层的第一区域，与第一区域相邻设置的第二区域，并且具有沿纵向方向设置的第二光栅层，以及有源层，设置在第一和 第二区。 第一和第二光栅层的耦合系数通过选择性区域生长方法在第一和第二区域中不同。 分布式反馈激光二极管包括各自具有不对称系数的光栅层，并且实现在能够获得高前端面输出和稳定单模特性的最佳范围内。 因此，可以实现高制造成品率和低制造成本。