公开(公告)号：US07110168B2

公开(公告)日：2006-09-19

申请号：US10847109

申请日：2004-05-17

Applicant: Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Hyun-Cheol Shin ,  Yun-Je Oh ,  Seong-Taek Hwang

Inventor： Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Hyun-Cheol Shin ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC: H04B10/12

CPC classification number: H04B10/506 ,  H01S3/2333 ,  H01S3/2383 ,  H01S5/005 ,  H01S5/5072 ,  H01S2301/02

Abstract: Disclosed are optical signal transmission apparatus including a reflective gain-clamped semiconductor optical amplifier and optical communication system using the optical signal transmission apparatus, which can improve modulation speed and optical power by effectively suppressing intensity noise of an incoherent light source. The optical signal transmission apparatus comprises a light source; a reflective gain-clamped semiconductor optical amplifier to generate gain-clamped optical signals having a substantially constant output intensity in a gain saturation region; a wavelength division multiplexing apparatus configured to spectrum-slice light from the light source, provide the spectrum-sliced light to the reflective gain-clamped semiconductor optical amplifier, and multiplex optical signals gain-clamped by the reflective gain-clamped optical amplifier, and a circulator for inputting the light generated by the light source to the wavelength division multiplexing apparatus, and outputting the optical signal multiplexed by the wavelength division multiplexing apparatus to a transmission link.

Abstract translation: 公开了包括使用光信号传输装置的反射增益钳位半导体光放大器和光通信系统的光信号传输装置，其可以通过有效地抑制非相干光源的强度噪声来提高调制速度和光功率。 光信号传输装置包括光源; 反射增益钳位半导体光放大器，用于产生在增益饱和区中具有基本上恒定的输出强度的增益钳位光信号; 波长分割多路复用装置，被配置为对来自光源的光进行光谱分片，向经反射增益钳位的半导体光放大器提供频谱切割的光，并对由反射增益钳位的光放大器进行增益钳位的多路复用光信号，以及 循环器，用于将由光源产生的光输入到波分多路复用装置，并将由波分多路复用装置复用的光信号输出到传输链路。

公开(公告)号：US07099530B2

公开(公告)日：2006-08-29

申请号：US10841051

申请日：2004-05-07

Applicant: Dong-Jae Shin ,  Jung-Kee Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang

Inventor： Dong-Jae Shin ,  Jung-Kee Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang

IPC: G02B6/26

CPC classification number: H01S5/50 ,  H01L27/15 ,  H01S5/0265 ,  H01S5/028

Abstract: An optical transmitter module for creating an optical signal having the same wavelength as an incoherent light inputted thereinto is provided. The module includes a substrate, a multi-layer crystal growth layer including a first area for amplifying the incoherent light and the optical signal and a second area for creating an optical signal having the same wavelength as the incoherent light amplified by means of the first area, and an electrode unit for independently injecting currents into the areas of the multi-layer crystal growth layer. A light generated at a broadband light source is spectrum-sliced and injected into the optical transmitter module so that a wavelength division multiplexing light source is realised.

Abstract translation: 提供了一种用于产生具有与输入的非相干光相同波长的光信号的光发射机模块。 该模块包括衬底，多层晶体生长层，其包括用于放大非相干光和光信号的第一区域和用于产生与通过第一区域放大的非相干光波长相同的波长的光信号的第二区域 ，以及用于独立地向多层晶体生长层的区域注入电流的电极单元。 在宽带光源处产生的光被频谱分片并注入到光发射机模块中，从而实现波分复用光源。

公开(公告)号：US20060104643A1

公开(公告)日：2006-05-18

申请号：US11147638

申请日：2005-06-08

Applicant: Jae-Hoon Lee ,  Jeong-Seok Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Seong-Taek Hwang

Inventor： Jae-Hoon Lee ,  Jeong-Seok Lee ,  Kwan-Soo Lee ,  Chang-Sup Shim ,  Seong-Taek Hwang

IPC: H04B10/00

CPC classification number: H04B10/25758

Abstract: An optical network for bi-directional communication includes: a base station for generating downlink optical signals and detecting uplink optical signals; and a remote antenna unit for transmitting the downlink optical signals and generating the uplink optical signals to the base station; wherein the remote antenna includes: an optical detector for converting the downlink optical signals into downlink radio signals; an antenna for transmitting the downlink radio signals to outside thereof, and receiving the uplink radio signals in wireless communication; a semiconductor optical amplifier for converting the uplink radio signals into the uplink optical signals to output the uplink optical signals to the base station; and a circulating device having a plurality of ports, each of which is connected to the antenna, the optical detector, and the semiconductor optical amplifier, respectively.

Abstract translation: 一种用于双向通信的光网络包括：用于产生下行光信号并检测上行光信号的基站; 以及远程天线单元，用于发送下行链路光信号并向基站生成上行链路光信号; 其中所述远程天线包括：用于将所述下行链路光信号转换成下行无线电信号的光检测器; 用于将下行链路无线电信号发送到其外部的天线，以及在无线通信中接收上行无线电信号; 半导体光放大器，用于将上行无线电信号转换成上行光信号，以将上行光信号输出到基站; 以及具有多个端口的循环装置，每个端口分别连接到天线，光学检测器和半导体光学放大器。

公开(公告)号：US07046435B2

公开(公告)日：2006-05-16

申请号：US10937625

申请日：2004-09-09

Applicant: Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Seong-Taek Hwang

Inventor： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Seong-Taek Hwang

IPC: H01S3/00

CPC classification number: H01S5/50 ,  H01S5/028 ,  H01S5/101 ,  H01S5/1064 ,  H01S5/1085 ,  H01S5/16 ,  H01S5/227 ,  H01S2301/176

Abstract: A reflective semiconductor optical amplifier includes a substrate, a waveguide with a buried heterostructure formed by sequentially laminating a lower cladding, an active layer, and an upper cladding on the substrate, the waveguide including, sequentially, respective straight line, curved and tapered waveguide regions. A current blocking layer surrounds the waveguide to prevent electric current from flowing outside the active layer. Selectively etching portions of the current blocking layer and the substrate around the waveguide forms a trench to reduce parasitic capacitance. Further features include a window region on one end of the tapered waveguide region, an anti-reflection surface on one end of the window region, and a high-reflection surface on one end of the straight line waveguide region.

Abstract translation: 反射半导体光放大器包括基板，具有通过在基板上依次层叠下包层，有源层和上包层而形成的掩埋异质结构的波导，波导依次包括相应的直线，弯曲和锥形波导区域 。 电流阻挡层围绕波导以防止电流流过有源层外部。 选择性地蚀刻电流阻挡层和波导周围的衬底的部分形成沟槽以减小寄生电容。 另外的特征包括在锥形波导区域的一端上的窗口区域，窗口区域的一端上的防反射面以及直线波导区域的一端的高反射面。

公开(公告)号：US20060083272A1

公开(公告)日：2006-04-20

申请号：US11200729

申请日：2005-08-10

Applicant: Du-Chang Heo ,  Jeong-Seok Lee ,  Seong-Taek Hwang

Inventor： Du-Chang Heo ,  Jeong-Seok Lee ,  Seong-Taek Hwang

IPC: H01S3/30

CPC classification number: B82Y20/00 ,  H01S5/1092 ,  H01S5/2072 ,  H01S5/34 ,  H01S5/3414 ,  H01S5/4043 ,  H01S5/4087 ,  H01S2301/18

Abstract: Disclosed are a broadband light source and a method of fabricating the same. The method includes the steps of forming a lower clad on a substrate, forming an active layer having a multiple well structure on the lower clad (so as to generate light having a broad wavelength band), sequentially depositing an upper clad and a cap on the active layer, depositing a cover layer including at least two regions having bandgaps different from each other on the cap, and heat-treating the broadband light source including the cover layer.

Abstract translation: 公开了一种宽带光源及其制造方法。 该方法包括以下步骤：在衬底上形成下包层，在下包层上形成具有多孔结构的有源层（以产生具有宽波长带的光），顺序地将上覆层和帽盖放置在 活性层，在盖上沉积包括至少两个具有彼此不同的带隙的区域的覆盖层，以及对包括覆盖层的宽带光源进行热处理。

公开(公告)号：US20050185265A1

公开(公告)日：2005-08-25

申请号：US10939725

申请日：2004-09-13

Applicant: Jeong-Seok Lee ,  Dong-Han Lee ,  Jeong-Mee Oh

Inventor： Jeong-Seok Lee ,  Dong-Han Lee ,  Jeong-Mee Oh

IPC: G02F1/35 ,  H01S3/00 ,  H01S3/10 ,  H01S3/30 ,  H01S5/026 ,  H01S5/12 ,  H01S5/30 ,  H01S5/50

CPC classification number: H01S3/302 ,  H01S5/0265 ,  H01S5/1203 ,  H01S5/5072

Abstract: A semiconductor optical amplifier for amplifying input optical signals is disclosed. The optical amplifier includes a substrate; a first active layer laminated on the substrate for generating pumping lights; a second active layer laminated on the substrate being gain-clamped by the pumping light and amplifying the input optical signals; and a grating formed on an upper portion of the substrate, adjacent to a boundary between the first active layer and the second active layer, for partially allowing the transmission of the pumping lights to the second active layer and partially reflecting the pumping lights.

Abstract translation: 公开了一种用于放大输入光信号的半导体光放大器。 光放大器包括：基板; 层叠在所述基板上用于产生泵浦光的第一有源层; 层叠在基板上的第二有源层被泵浦光增益钳位并放大输入光信号; 以及形成在所述基板的上部相邻于所述第一有源层和所述第二有源层之间的边界的光栅，用于部分地允许将所述泵浦光传输到所述第二有源层并部分地反射所述泵浦光。

公开(公告)号：US20050088724A1

公开(公告)日：2005-04-28

申请号：US10847109

申请日：2004-05-17

Applicant: Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Hyun-Cheol Shin ,  Yun-Je Oh ,  Seong-Taek Hwang

Inventor： Jeong-Seok Lee ,  Ho-In Kim ,  In-Kuk Yun ,  Seung-Woo Kim ,  Hyun-Cheol Shin ,  Yun-Je Oh ,  Seong-Taek Hwang

IPC: H01S5/50 ,  G02B6/28 ,  H01S3/00 ,  H01S3/23 ,  H01S5/00 ,  H04B10/2507 ,  H04B10/40 ,  H04B10/50 ,  H04B10/60 ,  H04J14/00 ,  H04J14/02

CPC classification number: H04B10/506 ,  H01S3/2333 ,  H01S3/2383 ,  H01S5/005 ,  H01S5/5072 ,  H01S2301/02

Abstract: Disclosed are optical signal transmission apparatus including a reflective gain-clamped semiconductor optical amplifier and optical communication system using the optical signal transmission apparatus, which can improve modulation speed and optical power by effectively suppressing intensity noise of an incoherent light source. The optical signal transmission apparatus comprises a light source; a reflective gain-clamped semiconductor optical amplifier to generate gain-clamped optical signals having a substantially constant output intensity in a gain saturation region; a wavelength division multiplexing apparatus configured to spectrum-slice light from the light source, provide the spectrum-sliced light to the reflective gain-clamped semiconductor optical amplifier, and multiplex optical signals gain-clamped by the reflective gain-clamped optical amplifier. and a circulator for inputting the light generated by the light source to the wavelength division multiplexing apparatus, and outputting the optical signal multiplexed by the wavelength division multiplexing apparatus to a transmission link.

Abstract translation: 公开了包括使用光信号传输装置的反射增益钳位半导体光放大器和光通信系统的光信号传输装置，其可以通过有效地抑制非相干光源的强度噪声来提高调制速度和光功率。 光信号传输装置包括光源; 反射增益钳位半导体光放大器，用于产生在增益饱和区中具有基本上恒定的输出强度的增益钳位光信号; 波分多路复用装置，被配置为对来自光源的光进行光谱分片，将光谱切片光提供给反射增益钳位半导体光放大器，并且复用由反射增益钳位光放大器增益钳位的光信号。 以及循环器，用于将由光源产生的光输入到波分复用装置，并将由波分多路复用装置复用的光信号输出到传输链路。

公开(公告)号：US20050041971A1

公开(公告)日：2005-02-24

申请号：US10792322

申请日：2004-03-03

Applicant: Jea-Hyuck Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

Inventor： Jea-Hyuck Lee ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC: H01S3/10 ,  H04B10/2507 ,  H04J14/00 ,  H04J14/02

CPC classification number: H04B10/296 ,  H04B10/2503 ,  H04J14/02

Abstract: A multi-wavelength optical transmitter which multiplexes a plurality of channels having different wavelengths into an optical signal for output includes lasers for generating mode-locked channels by corresponding incoherent light received in the lasers. The transmitter also has a semiconductor optical amplifier for amplifying, while in a gain saturation state, the optical signal multiplexed by the multiplexer/demultiplexer. Light from a broadband light source is directed by a circulator to the multiplexer/demultiplexer for demultiplexing among the lasers. Light back from the lasers is multiplexed and then directed by the circulator and amplified by a semiconductor optical amplifier for output external to the transmitter.

Abstract translation: 将具有不同波长的多个信道多路复用到用于输出的光信号中的多波长光发射机包括用于通过在激光器中接收的相应非相干光产生锁模信道的激光器。 发射机还具有半导体光放大器，用于在增益饱和状态下放大由多路复用器/解复用器多路复用的光信号。 来自宽带光源的光由循环器引导到多路复用器/解复用器，用于激光器之间的解复用。 来自激光器的光反射被多路复用，然后由循环器引导并由半导体光放大器放大，以便在发射机外部输出。

公开(公告)号：US20050036787A1

公开(公告)日：2005-02-17

申请号：US10834323

申请日：2004-04-28

Applicant: Jeong-Seok Lee ,  Dong-Jae Shin ,  Seong-Taek Hwang

Inventor： Jeong-Seok Lee ,  Dong-Jae Shin ,  Seong-Taek Hwang

IPC: H04J14/00 ,  H04B10/00 ,  H04B10/272 ,  H04J14/02 ,  H04Q11/00

CPC classification number: H04Q11/0067 ,  H04B10/2503 ,  H04J14/02 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

Abstract: A bi-directional WDM communication system of the type having central and local offices, and subscribers is provided. The central office includes downstream Bragg reflector lasers for generating downstream channels of different wavelengths, each channel being wavelength-locked to a corresponding incoherent light beam. The central office multiplexes the downstream channels into a downstream optical signal, demultiplexes an upstream optical signal into upstream channels of different wavelengths, and detects the upstream channels. The local office demultiplexes a downstream optical signal into downstream channels, multiplexes upstream channels of different wavelengths into an upstream optical signal, outputs it to the central office, and demultiplexes a broadband light beam into incoherent light beams of different wavelengths. Each subscriber receives the corresponding downstream channel and incoherent light beam, includes an upstream Bragg reflector laser for generating an upstream channel wavelength-locked to the received incoherent light beam, and outputs the upstream channel to the local office.

Abstract translation: 提供了具有中央和本地办公室以及订户的双向WDM通信系统。 中心局包括用于产生不同波长的下行通道的下游布拉格反射器激光器，每个通道波长锁定到相应的非相干光束。 中心局将下游信道复用为下行光信号，将上行光信号解复用为不同波长的上行信道，并检测上行信道。 本地办公室将下行光信号解复用到下行信道，将不同波长的上行信道复用为上行光信号，将其输出到中心局，并将宽带光束解复用为不同波长的非相干光束。 每个用户接收相应的下游信道和非相干光束，包括用于产生波长锁定到接收的非相干光束的上行信道的上游布拉格反射器激光器，并将上行信道输出到本地局。

公开(公告)号：US08682396B2

公开(公告)日：2014-03-25

申请号：US13279749

申请日：2011-10-24

Applicant: Tae-Heon Yang ,  Yu-Dong Bae ,  Dong-Soo Kwon ,  Young-Min Lee ,  Eun-Hwa Lee ,  Jeong-Seok Lee ,  Dong-Bum Pyo ,  Young-Jun Cho

Inventor： Tae-Heon Yang ,  Yu-Dong Bae ,  Dong-Soo Kwon ,  Young-Min Lee ,  Eun-Hwa Lee ,  Jeong-Seok Lee ,  Dong-Bum Pyo ,  Young-Jun Cho

IPC: H04M1/00

CPC classification number: B06B1/045 ,  G06F3/016 ,  G06F3/04886 ,  G08B13/00 ,  H02K33/16 ,  H04M1/00

Abstract: Disclosed is a vibration module for a portable terminal that includes a housing, a magnetic moving part movable in a first direction within the housing; an elastic member supported between the opposite ends of the magnetic moving part and inner walls of the housing, and a solenoid coil provided in the housing. The vibration module is positioned at one end of the moving section by the magnetic force of the magnetic moving part and an object around the magnetic moving part, allowing the vibration module to provide a user with a feeling similar to a click feeling via the acceleration produced at a stopping instant. In addition, when vibrating, the vibration module generates sufficient vibration power through acceleration at the instant of changing moving direction at the ends of the moving section, to provide an alarm function, such as an incoming call notification.

Abstract translation: 公开了一种用于便携式终端的振动模块，其包括壳体，可在壳体内沿第一方向移动的磁性移动部件; 支撑在所述磁性移动部件的相对端部和所述壳体的内壁之间的弹性部件，以及设置在所述壳体中的螺线管线圈。 振动模块通过磁性移动部件的磁力和磁性移动部件周围的物体位于移动部分的一端，允许振动模块通过产生的加速度为使用者提供类似于咔嗒感的感觉 在一个停止的瞬间。 此外，当振动时振动模块在移动部分的端部改变移动方向的时刻通过加速度产生足够的振动功率，从而提供诸如来电通知之类的报警功能。