公开(公告)号：US20050276614A1

公开(公告)日：2005-12-15

申请号：US11190755

申请日：2005-07-27

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

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

IPC: H04B10/02 ,  H04B10/155

CPC classification number: H04B10/516 ,  H04B2210/517

Abstract: Provided is a signal processor for converting a signal that converts a return to zero (RZ) signal into a non-return to zero (NRZ) signal, in which two 2R (re-amplifying, re-shaping) regenerators are connected in parallel between an input waveguide and an output waveguide with different lengths from each other. The 2R regenerator includes: two semiconductor optical amplifiers having different lengths from each other; and phase control means connected to a short semiconductor optical amplifier. The RZ signal input by a length difference of the waveguide is delayed by a time difference of a half of one bit so that the 2R regenerated NRZ signal can be obtained.

Abstract translation: 提供了一种信号处理器，用于转换将归零（RZ）信号转换为不归零（NRZ）信号的信号，其中两个2R（再放大，重整）再生器并联连接在 具有彼此不同长度的输入波导和输出波导。 2R再生器包括：具有彼此不同长度的两个半导体光放大器; 以及连接到短半导体光放大器的相位控制装置。 通过波导的长度差输入的RZ信号被延迟了一位的一半的时间差，从而可以获得2R再生的NRZ信号。

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：US20130266263A1

公开(公告)日：2013-10-10

申请号：US13618353

申请日：2012-09-14

Applicant: Oh Kee KWON ,  Chul-Wook LEE ,  Dong-Hun LEE ,  Young Ahn LEEM ,  Young-Tak HAN ,  Yongsoon BAEK ,  Yun C. CHUNG

Inventor： Oh Kee KWON ,  Chul-Wook LEE ,  Dong-Hun LEE ,  Young Ahn LEEM ,  Young-Tak HAN ,  Yongsoon BAEK ,  Yun C. CHUNG

IPC: G02B6/26 ,  H01P11/00

CPC classification number: G02B6/1228 ,  G02B6/305

Abstract: Provided are a spot size converter and a method of manufacturing the spot size converter. The method includes stacking a lower clad layer, a core layer, and a first upper clad layer on a substrate, tapering the first upper clad layer and the core layer in a first direction on a side of the substrate, forming a waveguide layer on the first upper clad layer and the lower clad layer, and etching the waveguide layer, the first upper clad layer, the core layer, and the lower clad layer such that the waveguide layer is wider than a tapered portion of the core layer on the side of the substrate and has the same width as that of the core layer on another side of the substrate.

Abstract translation: 提供了点尺寸转换器和制造光斑尺寸转换器的方法。 该方法包括在基板上层叠下包层，芯层和第一上包覆层，使第一上包覆层和芯层在衬底侧沿第一方向逐渐变细，在衬底的一侧上形成波导层 第一上包覆层和下包层，并且蚀刻波导层，第一上包层，芯层和下包层，使得波导层比芯层的锥形部分宽 并且具有与基板的另一侧上的芯层的宽度相同的宽度。

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：US20130148675A1

公开(公告)日：2013-06-13

申请号：US13614748

申请日：2012-09-13

Applicant: Young Ahn LEEM

Inventor： Young Ahn LEEM

IPC: H01S3/10 ,  H01S3/08

CPC classification number: H01S5/06258 ,  H01S5/06256 ,  H01S5/0657 ,  H01S5/1221

Abstract: A high-efficiency laser diode is provided. Since a λ/4 phase-shifted distributed feedback (DFB) laser diode has a great coupling coefficient, mode stability is poor due to spatial hole burning when multiplication of the coupling coefficient by length of a resonator is equal to or greater than 2. In the inventive concept, a region capable of controlling spatial hole burning is inserted into a semiconductor laser diode structure. Thus, an ultrahigh-speed pulse laser diode having a repetition rate in the band ranging from 100 GHz to 300 GHz is obtained. In addition, a single-mode laser diode with improved energy use efficiency is implemented by changing the configuration of a laser diode.

Abstract translation: 提供高效率的激光二极管。 由于λ/ 4相移分布反馈（DFB）激光二极管具有很大的耦合系数，当谐振器的耦合系数乘以等于或大于2时，由于空间空穴燃烧，模式稳定性差。 将本发明的概念，能够控制空穴燃烧的区域插入到半导体激光二极管结构中。 因此，获得了在100GHz至300GHz范围内具有重复频率的超高速脉冲激光二极管。 此外，通过改变激光二极管的配置来实现具有改善的能量利用效率的单模激光二极管。

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。

公开(公告)号：US20120153161A1

公开(公告)日：2012-06-21

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: G01J5/08 ,  B01J19/12

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：US20120087004A1

公开(公告)日：2012-04-12

申请号：US13019299

申请日：2011-02-01

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

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

IPC: G02F1/365

CPC classification number: G02F1/2257 ,  G02F2001/01741 ,  G02F2001/01758 ,  G02F2203/56 ,  H01S5/0085 ,  H01S5/02248

Abstract: Provided is an optical comb generator including a light source, a first waveguide region, a modulation region, and a second waveguide region. The light source is configured to output single-mode light. The first waveguide region divides an output of the light source into first light and second light. The modulation region includes a first modulator and a second modulator modulating the first light and the second light respectively. The second waveguide region combines outputs of the first modulator and the second modulator to output an optical comb. Here, the first modulator and the second modulator respectively include a first quantum well and a second quantum well having an asymmetric structure with respect to each other. The light source, the first waveguide region, the modulation region, and the second waveguide region are integrated into one substrate.

Abstract translation: 提供一种包括光源，第一波导区域，调制区域和第二波导区域的光梳发生器。 光源配置为输出单模光。 第一波导区域将光源的输出分成第一光和第二光。 调制区域包括分别调制第一光和第二光的第一调制器和第二调制器。 第二波导区域组合第一调制器和第二调制器的输出以输出光梳。 这里，第一调制器和第二调制器分别包括相对于彼此具有不对称结构的第一量子阱和第二量子阱。 光源，第一波导区域，调制区域和第二波导区域被集成到一个基板中。

公开(公告)号：US07720128B2

公开(公告)日：2010-05-18

申请号：US11438201

申请日：2006-05-22

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

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

IPC: H01S3/08

CPC classification number: H01S5/065 ,  H01S5/0625 ,  H01S5/0657 ,  H01S5/1039 ,  H01S5/1203

Abstract: Provided are a laser diode generating passive mode locking that does not contain non-linear sector of an SA, and a method of creating an optical pulse using the same diode. The laser diode includes a DFB sector serving as a reflector and a gain sector. The gain sector is connected to the DFB sector and includes an as-cleaved facet formed at the end of the gain sector. When a current less than a threshold current is applied to the DFB sector to allow the DFB sector to operate as a reflector, passive mode locking occurs swiftly and therefore a sector of the SA is not required, which makes manufacturing simple. Also, it is possible to effectively extend a frequency variable region compared to using of the SA.

Abstract translation: 提供了一种激光二极管，其产生不包含SA的非线性扇区的无源模式锁定，以及使用相同二极管产生光脉冲的方法。 激光二极管包括用作反射器的DFB扇区和增益扇区。 增益扇区连接到DFB扇区，并包括在增益扇区末端形成的切割面。 当将小于阈值电流的电流施加到DFB扇区以允许DFB扇区作为反射器操作时，被动模式锁定迅速发生，因此不需要SA的扇区，这使制造变得简单。 此外，与使用SA相比，可以有效地扩展频率可变区域。

公开(公告)号：US07680169B2

公开(公告)日：2010-03-16

申请号：US10726141

申请日：2003-12-01

Applicant: Kyung-Hyun Park ,  Dae-Su Yee ,  Dong-Churl Kim ,  Young-Ahn Leem ,  Sung-Bock Kim

Inventor： Kyung-Hyun Park ,  Dae-Su Yee ,  Dong-Churl Kim ,  Young-Ahn Leem ,  Sung-Bock Kim

IPC: H01S5/00

CPC classification number: B82Y20/00 ,  H01S5/0265 ,  H01S5/06258 ,  H01S5/0657 ,  H01S5/1228 ,  H01S5/2206 ,  H01S5/2222 ,  H01S5/227 ,  H01S5/34306

Abstract: A multi-section semiconductor laser diode is disclosed. The laser diode includes a complex-coupled DFB laser section that includes a complex-coupled grating and an active structure for controlling the intensity of oscillating laser light, to oscillate laser light in a single mode, and an external cavity including a phase control section and an amplifier section, the phase control section having a passive waveguide that controls a phase variation of feedback laser light, the amplification section having an active structure that controls the strength of the feedback laser light. Currents are separately provided to the three sections to generate optical pulses with tuning range of tens of GHz. Applications include the clock recovery in the 3R regeneration of the optical communication.

Abstract translation: 公开了一种多段半导体激光二极管。 激光二极管包括复耦DFB激光器部分，其包括复耦合光栅和用于控制振荡激光的强度，以单一模式振荡激光的有源结构，以及包括相位控制部分的外部腔和 放大器部分，相位控制部分具有控制反馈激光的相位变化的无源波导，该放大部分具有控制反馈激光强度的有源结构。 电流分别提供给三个部分，以产生具有几十GHz调谐范围的光脉冲。 应用包括在光通信的3R再生中的时钟恢复。