公开(公告)号：US07136218B2

公开(公告)日：2006-11-14

申请号：US10701642

申请日：2003-11-05

Applicant: Seung-Woo Kim ,  Seong-Taek Hwang ,  Jeong-Seok Lee

Inventor： Seung-Woo Kim ,  Seong-Taek Hwang ,  Jeong-Seok Lee

IPC: H04B10/17

CPC classification number: H04B10/2916 ,  H01S3/094003 ,  H01S3/0941 ,  H01S3/2375 ,  H01S3/302 ,  H01S5/12 ,  H01S5/5045

Abstract: A Raman optical amplifier includes a fiber amplifier for Raman-amplifying an input optical signal to form a primarily-amplified optical signal, and a semiconductor optical amplifier for outputting a Raman pumping light of a predetermined wavelength adapted to Raman-pump the fiber amplifier, while amplifying the primarily-amplified optical signal to form a secondarily-amplified optical signal. A circulator allows the fiber and semiconductor amplifiers to communicate the lights and signals and operates with fiber grating, which acts as a filter, to output the secondarily-amplified optical signal

Abstract translation: 拉曼光放大器包括用于拉曼放大输入光信号以形成主放大光信号的光纤放大器，以及用于输出适于拉曼泵浦光纤放大器的预定波长的拉曼泵浦光的半导体光放大器，同时 放大主放大的光信号以形成二次放大的光信号。 循环器允许光纤和半导体放大器通信光和信号，并以用作滤波器的光纤光栅进行操作，以输出二次放大的光信号

公开(公告)号：US07088502B2

公开(公告)日：2006-08-08

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: H01S3/00 ,  H04B10/12

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：US20060039700A1

公开(公告)日：2006-02-23

申请号：US11005212

申请日：2004-12-06

Applicant: Hyun-Soo Kim ,  Dae-Kwang Jung ,  Jeong-Seok Lee ,  Sung-Kee Kim

Inventor： Hyun-Soo Kim ,  Dae-Kwang Jung ,  Jeong-Seok Lee ,  Sung-Kee Kim

IPC: H04J14/00

CPC classification number: H04J14/0282 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025

Abstract: A passive optical network using downstream and upstream optical signals for achieving a two-way communication is provided, wherein the downstream and upstream optical signals have different polarization components and an equal wavelength band.

Abstract translation: 提供了一种使用用于实现双向通信的下行和上行光信号的无源光网络，其中下游和上游光信号具有不同的偏振分量和相等的波长带。

公开(公告)号：US20050185263A1

公开(公告)日：2005-08-25

申请号：US10922677

申请日：2004-08-19

Applicant: Jeong-Seok Lee ,  Yun-Je OH ,  Seong-Taek Hwang ,  Dong-Han Lee ,  Jeong-Mee Oh

Inventor： Jeong-Seok Lee ,  Yun-Je OH ,  Seong-Taek Hwang ,  Dong-Han Lee ,  Jeong-Mee Oh

IPC: H01S5/50 ,  H01S3/00 ,  H01S5/30

CPC classification number: H01S5/50 ,  H01S5/0078 ,  H01S5/5072

Abstract: Disclosed is a gain-clamped semiconductor optical amplifier including a semiconductor optical amplifier for amplifying an inputted optical signal and outputting amplified spontaneous emission light, the amplified spontaneous emission light consisting of a first portion and a second portion, the first portion having a wavelength range to be amplified and a wavelength selective reflector for allowing the first portion of the amplified spontaneous emission light to pass through the wavelength selective reflector and reflecting the second portion of the amplified spontaneous emission light again to the semiconductor optical amplifier, thereby clamping the gain of the semiconductor optical amplifier.

Abstract translation: 公开了一种增益钳位半导体光放大器，其包括：半导体光放大器，用于放大输入的光信号并输出​​放大的自发发射光;放大的自发发射光由第一部分和第二部分组成，第一部分的波长范围为 被放大的波长选择性反射器和用于允许放大的自发发射光的第一部分通过波长选择反射器并将放大的自发发射光的第二部分再次反射到半导体光放大器的波长选择反射器，由此钳位半导体的增益 光放大器。

公开(公告)号：US20050135738A1

公开(公告)日：2005-06-23

申请号：US10852041

申请日：2004-05-24

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

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

IPC: H01S5/40 ,  G02B6/12 ,  G02B6/42 ,  H01S5/022 ,  G02B6/26

CPC classification number: G02B6/4206

Abstract: Disclosed are a broadband light source and a broadband optical module using the broadband light source. The broadband light source includes a substrate, a plurality of waveguides including active layers for generating light of mutually differing wavelength bands, and formed on the substrate in order to extend from a first end to a second end of the broadband light source, a plurality of trenches located between waveguides in order to electrically and optically insulate the waveguides from each other, and a plurality of electrode devices for operating each of the waveguides.

Abstract translation: 公开了宽带光源和使用宽带光源的宽带光模块。 宽带光源包括基板，多个波导，包括用于产生相互不同的波长带的光的有源层，并且形成在基板上以便从宽带光源的第一端延伸到第二端，多个 位于波导之间的沟槽，以便使波导彼此电和光学绝缘;以及多个用于操作每个波导的电极装置。

公开(公告)号：US20050122571A1

公开(公告)日：2005-06-09

申请号：US10825816

申请日：2004-04-16

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

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

IPC: H01S5/50 ,  H01S3/30 ,  H01S5/028 ,  H01S5/12 ,  H01S5/20 ,  H01S5/227 ,  H01S5/30

CPC classification number: H01S5/50 ,  H01S5/028 ,  H01S5/0654 ,  H01S5/1014 ,  H01S5/1203 ,  H01S5/227 ,  H01S5/5072

Abstract: A gain-clamped semiconductor optical amplifier is disclosed. The amplifier includes a gain waveguide for amplifying an optical signal input to the gain waveguide, and a grating layer, in contact with the gain waveguide, having a first grating disposed at a first end portion.

Abstract translation: 公开了一种增益钳位半导体光放大器。 放大器包括用于放大输入到增益波导的光信号的增益波导和与增益波导接触的光栅层，其具有设置在第一端部处的第一光栅。

公开(公告)号：US20050078359A1

公开(公告)日：2005-04-14

申请号：US10806549

申请日：2004-03-23

Applicant: Seung-Woo Kim ,  Jeong-Seok Lee ,  Seong-Taek Hwang

Inventor： Seung-Woo Kim ,  Jeong-Seok Lee ,  Seong-Taek Hwang

IPC: H01S5/50 ,  G02B6/10 ,  G02B6/42 ,  H01S3/00 ,  H01S5/00 ,  H01S5/028 ,  H01S5/10 ,  H01S5/14 ,  H04J14/02

CPC classification number: H01S5/028 ,  H01S5/1039 ,  H01S5/14 ,  H01S2301/02

Abstract: A broad-band light source using a semiconductor optical amplifier is provided. The broad-band light source includes the semiconductor optical amplifier including an active layer serving as a gain area, an under-cladding layer, an over-cladding layer, and antireflection layers formed at both ends of the active layer; and a reflector, located at the outside of the semiconductor optical amplifier, for reflecting light outputted from the semiconductor optical amplifier so that the reflected light is inputted back to the active layer so as to minimize gain ripple of the semiconductor optical amplifier.

Abstract translation: 提供了使用半导体光放大器的宽带光源。 宽带光源包括半导体光放大器，其包括用作增益区的有源层，下敷层，上敷层和形成在有源层的两端的抗反射层; 以及位于半导体光放大器外侧的反射器，用于反射从半导体光放大器输出的光，使得反射光被输入到有源层，以使半导体光放大器的增益波动最小化。

公开(公告)号：US20070183719A1

公开(公告)日：2007-08-09

申请号：US11646739

申请日：2006-12-28

Applicant: Jeong-Seok Lee ,  Joong-Wan Park ,  Yu-Dong Bae ,  In-Kuk Yun ,  Jeong-Hwan Song ,  Seung-Woo Kim

Inventor： Jeong-Seok Lee ,  Joong-Wan Park ,  Yu-Dong Bae ,  In-Kuk Yun ,  Jeong-Hwan Song ,  Seung-Woo Kim

IPC: G02B6/12 ,  G02B6/26 ,  G02B6/42 ,  G02B6/36

CPC classification number: G02B6/43 ,  G02B6/12004 ,  G02B6/4214

Abstract: An optical module comprises a waveguide, at least one optical transducer positioned on the waveguide for transducing an optical signal into an electric signal or an electric signal into an optical signal and a connection socket seated on the waveguide, the optical transducer being mounted in the connection socket.

Abstract translation: 光学模块包括波导，定位在波导上的至少一个光学换能器，用于将光信号转换成电信号或电信号转换为光信号，以及坐在波导上的连接插座，光传感器安装在连接中 插座。

公开(公告)号：US07224519B2

公开(公告)日：2007-05-29

申请号：US10798662

申请日：2004-03-11

Applicant: Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

Inventor： Hyun-Cheol Shin ,  Jeong-Seok Lee ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC: H01S5/50 ,  H04J14/02

CPC classification number: H01S5/14 ,  H01S5/0265 ,  H01S5/028 ,  H01S5/06812 ,  H01S5/1085 ,  H01S5/1092

Abstract: A multi-wavelength light source includes a substrate, a fabry-perot laser laminated on the substrate that is operated by driving current below a predetermined threshold current to generate multi-wavelength light including a plurality of peaks whose wavelengths and spacing are identical to these of WDM channels. A semiconductor optical amplifier (SOA) is laminated on the substrate in an arrangement such that a slant surface of the SOA is opposed to a side surface of the fabry-perot laser, which serves to thereby amplify the multi-wavelength light output from the fabry-perot laser. The semiconductor optical amplifier is driven in a gain saturation state to reduce the relative intensity of noise in the channels of the multi-wavelength light that are simultaneously amplified.

Abstract translation: 多波长光源包括基板，层叠在基板上的fabry-perot激光器，其通过驱动低于预定阈值电流的电流来操作，以产生多波长光，其包括波长和间距与 WDM频道 半导体光放大器（SOA）以这样的布置层压在基板上，使得SOA的倾斜表面与fabry-perot激光器的侧表面相对，其用于放大来自fabry的多波长光输出 激光激光 半导体光放大器以增益饱和状态驱动，以减少同时放大的多波长光的通道中的噪声的相对强度。

公开(公告)号：US07012742B2

公开(公告)日：2006-03-14

申请号：US10683682

申请日：2003-10-10

Applicant: Jeong-Seok Lee ,  Seong-Taek Hwang

Inventor： Jeong-Seok Lee ,  Seong-Taek Hwang

IPC: H01S3/00

CPC classification number: H01S3/302 ,  H01S3/06754 ,  H01S3/2375 ,  H01S5/50 ,  H01S5/5072

Abstract: A gain-clamped semiconductor optical amplifier uses the Raman amplification principle. A Raman amplifier and a gain clamped semiconductor optical amplifier are integrated onto an optical amplifier module. The gain-clamped semiconductor optical amplifier includes: an optical fiber having Raman gain characteristics; and a gain-clamped semiconductor optical amplifier for providing a pumping light to the optical fiber by laser oscillation using a distributed Bragg reflector (DBR) lattice. The DBR has input and output terminals asymmetrical to each other, at least for amplifying a signal light Raman-amplified by the optical fiber.

Abstract translation: 增益钳位半导体光放大器采用拉曼放大原理。 拉曼放大器和增益钳位半导体光放大器被集成到光放大器模块上。 增益钳位半导体光放大器包括：具有拉曼增益特性的光纤; 以及增益钳位的半导体光放大器，其通过使用分布式布拉格反射器（DBR）晶格的激光振荡向光纤提供泵浦光。 DBR具有彼此不对称的输入和输出端子，至少用于放大由光纤放大的信号光拉曼。