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31. 发明申请

US20060104643A1 Optical network for bi-directional wireless communication 审中-公开
标题翻译：用于双向无线通信的光网络
公开(公告)号：US20060104643A1
公开(公告)日：2006-05-18
申请号：US11147638
申请日：2005-06-08
申请人： Jae-Hoon Lee , Jeong-Seok Lee , Kwan-Soo Lee , Chang-Sup Shim , Seong-Taek Hwang
发明人： Jae-Hoon Lee , Jeong-Seok Lee , Kwan-Soo Lee , Chang-Sup Shim , Seong-Taek Hwang
IPC分类号： H04B10/00
CPC分类号： H04B10/25758
摘要： 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.
摘要翻译：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。

32. 发明授权

US07046435B2 Reflective semiconductor optical amplifier 失效
标题翻译：反射半导体光放大器
公开(公告)号：US07046435B2
公开(公告)日：2006-05-16
申请号：US10937625
申请日：2004-09-09
申请人： Hyun-Cheol Shin , Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Seong-Taek Hwang
发明人： Hyun-Cheol Shin , Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Seong-Taek Hwang
IPC分类号： H01S3/00
CPC分类号： H01S5/50 , H01S5/028 , H01S5/101 , H01S5/1064 , H01S5/1085 , H01S5/16 , H01S5/227 , H01S2301/176
摘要： 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.
摘要翻译：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。

33. 发明申请

US20060083272A1 Broadband light source and method for fabricating the same 审中-公开
标题翻译：宽带光源及其制造方法
公开(公告)号：US20060083272A1
公开(公告)日：2006-04-20
申请号：US11200729
申请日：2005-08-10
申请人： Du-Chang Heo , Jeong-Seok Lee , Seong-Taek Hwang
发明人： Du-Chang Heo , Jeong-Seok Lee , Seong-Taek Hwang
IPC分类号： H01S3/30
CPC分类号： B82Y20/00 , H01S5/1092 , H01S5/2072 , H01S5/34 , H01S5/3414 , H01S5/4043 , H01S5/4087 , H01S2301/18
摘要： 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.
摘要翻译：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。

34. 发明申请

US20050185265A1 Semiconductor optical amplifier and optical amplifying apparatus using the same 有权
标题翻译：半导体光放大器及使用其的光放大装置
公开(公告)号：US20050185265A1
公开(公告)日：2005-08-25
申请号：US10939725
申请日：2004-09-13
申请人： Jeong-Seok Lee , Dong-Han Lee , Jeong-Mee Oh
发明人： Jeong-Seok Lee , Dong-Han Lee , Jeong-Mee Oh
IPC分类号： G02F1/35 , H01S3/00 , H01S3/10 , H01S3/30 , H01S5/026 , H01S5/12 , H01S5/30 , H01S5/50
CPC分类号： H01S3/302 , H01S5/0265 , H01S5/1203 , H01S5/5072
摘要： 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.
摘要翻译：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。

35. 发明申请

US20050088724A1 Optical signal transmission apparatus including reflective gain-clamped semiconductor optical amplifier 有权
标题翻译：光信号传输装置包括反射增益钳位半导体光放大器
公开(公告)号：US20050088724A1
公开(公告)日：2005-04-28
申请号：US10847109
申请日：2004-05-17
申请人： Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Hyun-Cheol Shin , Yun-Je Oh , Seong-Taek Hwang
发明人： Jeong-Seok Lee , Ho-In Kim , In-Kuk Yun , Seung-Woo Kim , Hyun-Cheol Shin , Yun-Je Oh , Seong-Taek Hwang
IPC分类号： H01S5/50 , G02B6/28 , H01S3/00 , H01S3/23 , H01S5/00 , H04B10/2507 , H04B10/40 , H04B10/50 , H04B10/60 , H04J14/00 , H04J14/02
CPC分类号： H04B10/506 , H01S3/2333 , H01S3/2383 , H01S5/005 , H01S5/5072 , H01S2301/02
摘要： 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.
摘要翻译：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。

36. 发明申请

US20050041971A1 Multi-wavelength optical transmitter and bi-directional wavelength division multiplexing system using the same 审中-公开
标题翻译：多波长光发射机和双向波分复用系统使用相同
公开(公告)号：US20050041971A1
公开(公告)日：2005-02-24
申请号：US10792322
申请日：2004-03-03
申请人： Jea-Hyuck Lee , Jeong-Seok Lee , Seong-Taek Hwang , Yun-Je Oh
发明人： Jea-Hyuck Lee , Jeong-Seok Lee , Seong-Taek Hwang , Yun-Je Oh
IPC分类号： H01S3/10 , H04B10/2507 , H04J14/00 , H04J14/02
CPC分类号： H04B10/296 , H04B10/2503 , H04J14/02
摘要： 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.
摘要翻译：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。

37. 发明申请

US20050036787A1 Bi-directional wavelength division multiplexing system 审中-公开
标题翻译：双向波分复用系统
公开(公告)号：US20050036787A1
公开(公告)日：2005-02-17
申请号：US10834323
申请日：2004-04-28
申请人： Jeong-Seok Lee , Dong-Jae Shin , Seong-Taek Hwang
发明人： Jeong-Seok Lee , Dong-Jae Shin , Seong-Taek Hwang
IPC分类号： H04J14/00 , H04B10/00 , H04B10/272 , H04J14/02 , H04Q11/00
CPC分类号： H04Q11/0067 , H04B10/2503 , H04J14/02 , H04J14/0226 , H04J14/0246 , H04J14/025 , H04J14/0282
摘要： 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.
摘要翻译：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。

38. 发明申请

US20070183719A1 Optical module 有权
标题翻译：光模块
公开(公告)号：US20070183719A1
公开(公告)日：2007-08-09
申请号：US11646739
申请日：2006-12-28
申请人： Jeong-Seok Lee , Joong-Wan Park , Yu-Dong Bae , In-Kuk Yun , Jeong-Hwan Song , Seung-Woo Kim
发明人： Jeong-Seok Lee , Joong-Wan Park , Yu-Dong Bae , In-Kuk Yun , Jeong-Hwan Song , Seung-Woo Kim
IPC分类号： G02B6/12 , G02B6/26 , G02B6/42 , G02B6/36
CPC分类号： G02B6/43 , G02B6/12004 , G02B6/4214
摘要： 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.
摘要翻译：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。

39. 发明授权

US07224519B2 Low noise multi-wavelength light source and wavelength division multiplexing system using same 有权
标题翻译：低噪声多波长光源和使用波分复用系统的波分复用系统
公开(公告)号：US07224519B2
公开(公告)日：2007-05-29
申请号：US10798662
申请日：2004-03-11
申请人： Hyun-Cheol Shin , Jeong-Seok Lee , Seong-Taek Hwang , Dae-Kwang Jung
发明人： Hyun-Cheol Shin , Jeong-Seok Lee , Seong-Taek Hwang , Dae-Kwang Jung
IPC分类号： H01S5/50 , H04J14/02
CPC分类号： H01S5/14 , H01S5/0265 , H01S5/028 , H01S5/06812 , H01S5/1085 , H01S5/1092
摘要： 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.
摘要翻译：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。

40. 发明授权

US07012742B2 Gain-clamped semiconductor optical amplifier using Raman amplification principle 失效
标题翻译：增益钳位半导体光放大器采用拉曼放大原理
公开(公告)号：US07012742B2
公开(公告)日：2006-03-14
申请号：US10683682
申请日：2003-10-10
申请人： Jeong-Seok Lee , Seong-Taek Hwang
发明人： Jeong-Seok Lee , Seong-Taek Hwang
IPC分类号： H01S3/00
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/2375 , H01S5/50 , H01S5/5072
摘要： 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.
摘要翻译：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。

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