公开(公告)号：US06728026B2

公开(公告)日：2004-04-27

申请号：US09942457

申请日：2001-08-29

申请人： Chang-Hee Lee ,  Byoung Yoon Kim ,  Seok Hyun Yun ,  Hyo Sang Kim ,  Jin-Serk Baik ,  Kun-Youl Park ,  Wayne V. Sorin

发明人： Chang-Hee Lee ,  Byoung Yoon Kim ,  Seok Hyun Yun ,  Hyo Sang Kim ,  Jin-Serk Baik ,  Kun-Youl Park ,  Wayne V. Sorin

IPC分类号： H01S300

CPC分类号： H04B10/2941 ,  H01S3/06758 ,  H01S3/1301 ,  H01S3/302 ,  H01S2301/04 ,  H04B10/296 ,  H04B2210/003

摘要： An optical amplifier comprises a wavelength tunable filter, one or more optical gain stages, and a controller for controlling a spectral profile of the wavelength tunable filter in response to a measured spectral characteristic of the amplifier. The controller may also control gain of the gain stage(s). The controller determines the filter spectral profile necessary to obtain a desired amplifier spectral characteristic. The spectral characteristic may, for example, be a power spectral output of the amplifier or a gain profile of the amplifier. The amplifier may incorporate a dispersion compensator. The controller may control a spectral profile of the wavelength tunable filter and gain of the dispersion compensator. A tunable fiber light source is also described.

摘要翻译： 光学放大器包括波长可调滤波器，一个或多个光学增益级和用于响应于所测量的放大器的光谱特性来控制波长可调谐滤波器的光谱分布的控制器。 控制器还可以控制增益级的增益。 控制器确定获得所需放大器频谱特性所需的滤波器频谱分布。 频谱特性可以例如是放大器的功率谱输出或放大器的增益曲线。 放大器可以并入色散补偿器。 控制器可以控制波长可调滤波器的谱分布和色散补偿器的增益。 还描述了可调光纤光源。

公开(公告)号：US07936994B2

公开(公告)日：2011-05-03

申请号：US11575604

申请日：2004-12-22

申请人： Chang-Hee Lee ,  Jin-serk Baik ,  Ki-Man Choi ,  Hyun-Sik Min ,  Keun-Youl Park

发明人： Chang-Hee Lee ,  Jin-serk Baik ,  Ki-Man Choi ,  Hyun-Sik Min ,  Keun-Youl Park

IPC分类号： H04J14/02

CPC分类号： H01S5/4006 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/0427 ,  H01S5/0612 ,  H01S5/0656 ,  H01S5/4068

摘要： Disclosed is a broadband light source (BLS) necessary to implement wavelength-locked Fabry-Perot (FP) laser diodes (LDs) applicable to an optical subscriber network The BLS is based on a method using mutual injection of low-cost FP LDs and a method using FP LDs undergoing chirping. A power level of a light emitting diodes (LED), an erbium-doped fiber amplifier (EDFA), or a super luminescent diode (SLD) used as the conventional BLS is low and its cost is high, such that the conventional BLS is inefficient. However, the present invention can easily implement a low-cost BLS using proposed FP LDs.

摘要翻译： 公开了实现适用于光用户网络的波长锁定法布里 - 珀罗（FP）激光二极管（LD）所必需的宽带光源（BLS）.BLS基于使用低成本FP LD的相互注入和 方法使用FP LD进行啁啾。 作为常规BLS使用的发光二极管（LED），掺铒光纤放大器（EDFA）或超发光二极管（SLD）的功率电平低，成本高，从而传统的BLS效率低下 。 然而，本发明可以容易地实现使用提出的FP LD的低成本BLS。

公开(公告)号：US20080131127A1

公开(公告)日：2008-06-05

申请号：US11575604

申请日：2004-12-22

申请人： Chang-Hee Lee ,  Jin-Serk Baik ,  Ki-Man Choi ,  Hyun-Sik Min ,  Keun-Youl Park

发明人： Chang-Hee Lee ,  Jin-Serk Baik ,  Ki-Man Choi ,  Hyun-Sik Min ,  Keun-Youl Park

IPC分类号： G02B27/28 ,  H01S5/00 ,  H01S3/10 ,  H01S3/13

CPC分类号： H01S5/4006 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/0427 ,  H01S5/0612 ,  H01S5/0656 ,  H01S5/4068

摘要： Disclosed is a broadband light source (BLS) necessary to implement wavelength-locked Fabry-Perot (FP) laser diodes (LDs) applicable to an optical subscriber network The BLS is based on a method using mutual injection of low-cost FP LDs and a method using FP LDs undergoing chirping. A power level of a light emitting diodes (LED), an erbium-doped fiber amplifier (EDFA), or a super luminescent diode (SLD) used as the conventional BLS is low and its cost is high, such that the conventional BLS is inefficient. However, the present invention can easily implement a low-cost BLS using proposed FP LDs.

摘要翻译： 公开了实现适用于光用户网络的波长锁定法布里 - 珀罗（FP）激光二极管（LD）所必需的宽带光源（BLS）.BLS基于使用低成本FP LD的相互注入和 方法使用FP LD进行啁啾。 作为常规BLS使用的发光二极管（LED），掺铒光纤放大器（EDFA）或超发光二极管（SLD）的功率电平低，成本高，从而传统的BLS效率低下 。 然而，本发明可以容易地实现使用提出的FP LD的低成本BLS。

公开(公告)号：US08180221B2

公开(公告)日：2012-05-15

申请号：US11991207

申请日：2006-08-29

申请人： Chang-Hee Lee ,  Sil-Gu Mun ,  Kun-Youl Park

发明人： Chang-Hee Lee ,  Sil-Gu Mun ,  Kun-Youl Park

IPC分类号： H04J14/02

CPC分类号： H04J14/0226 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) for reducing degradation in noise characteristic of a wavelength-locked Fabry-Perot Laser Diode (F-P LD). A WDM-PON for reducing degradation in a noise characteristic of a wavelength-locked F-P LD in accordance with the present invention comprises a central office (CO); a remote node (RN) being connected to the CO by a single mode fiber; and one or more optical network terminations (ONTs) being connected to the RN by one or more single mode fibers, respectively, wherein the CO comprises: a broadband light source (BLS) for generating light to be injected; a first wavelength-division multiplexing (WDM) filter for filtering for the injected light generated from the BLS and having a bandwidth wider than a bandwidth of the injected light in order to minimize a filtering effect; and one or more optical transceiver having one or more F-P LDs into which light being filtered by the first WDM filter is injected; and wherein the RN filters the injected light generated from the BLS and injects the filtered light into the one or more ONTs; and wherein the RN comprises a second WDM filter having a bandwidth wider than a bandwidth of the injected light in order to minimize a filtering effect.

摘要翻译： 本发明涉及一种用于减少波长锁定法布里 - 珀罗激光二极管（F-P LD）的噪声特性降低的波分复用无源光网络（WDM-PON）。 根据本发明的用于减少波长锁定的F-P LD的噪声特性降低的WDM-PON包括中心局（CO）; 远程节点（RN）通过单模光纤连接到CO; 并且一个或多个光网络终端（ONT）分别通过一个或多个单模光纤连接到RN，其中CO包括：用于产生要注入的光的宽带光源（BLS）; 第一波分复用（WDM）滤波器，用于对从BLS产生的注入的光进行滤波，并且具有比注入的光的带宽宽的带宽，以便使滤波效果最小化; 以及一个或多个光收发器，其具有一个或多个F-P LD，其中被第一WDM滤波器滤波的光被注入; 并且其中所述RN对从所述BLS产生的注入的光进行滤波，并且将所述经滤波的光注入到所述一个或多个ONT中; 并且其中所述RN包括具有比所述注入的光的带宽更宽的带宽的第二WDM滤波器，以便使滤波效果最小化。

公开(公告)号：US20100221008A1

公开(公告)日：2010-09-02

申请号：US11991207

申请日：2006-08-29

申请人： Chang-Hee Lee ,  Sil-Gu Mun ,  Kun-Youl Park

发明人： Chang-Hee Lee ,  Sil-Gu Mun ,  Kun-Youl Park

IPC分类号： H04J14/02

CPC分类号： H04J14/0226 ,  H04B10/506 ,  H04B10/572 ,  H04J14/02 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： The present invention relates to a wavelength-division multiplexed passive optical network (WDM-PON) for reducing degradation in noise characteristic of a wavelength-locked Fabry-Perot Laser Diode (F-P LD). A WDM-PON for reducing degradation in a noise characteristic of a wavelength-locked F-P LD in accordance with the present invention comprises a central office (CO); a remote node (RN) being connected to the CO by a single mode fiber; and one or more optical network terminations (ONTs) being connected to the RN by one or more single mode fibers, respectively, wherein the CO comprises: a broadband light source (BLS) for generating light to be injected; a first wavelength-division multiplexing (WDM) filter for filtering for the injected light generated from the BLS and having a bandwidth wider than a bandwidth of the injected light in order to minimize a filtering effect; and one or more optical transceiver having one or more F-P LDs into which light being filtered by the first WDM filter is injected; and wherein the RN filters the injected light generated from the BLS and injects the filtered light into the one or more ONTs; and wherein the RN comprises a second WDM filter having a bandwidth wider than a bandwidth of the injected light in order to minimize a filtering effect.

摘要翻译： 本发明涉及一种用于减少波长锁定法布里 - 珀罗激光二极管（F-P LD）的噪声特性降低的波分复用无源光网络（WDM-PON）。 根据本发明的用于减少波长锁定F-P LD的噪声特性降低的WDM-PON包括中心局（CO）; 远程节点（RN）通过单模光纤连接到CO; 并且一个或多个光网络终端（ONT）分别通过一个或多个单模光纤连接到RN，其中CO包括：用于产生要注入的光的宽带光源（BLS）; 第一波分复用（WDM）滤波器，用于对从BLS产生的注入的光进行滤波，并且具有比注入的光的带宽宽的带宽，以便使滤波效果最小化; 以及一个或多个光收发器，其具有一个或多个F-P LD，其中被第一WDM滤波器滤波的光被注入; 并且其中所述RN对从所述BLS产生的注入的光进行滤波，并且将所述经滤波的光注入到所述一个或多个ONT中; 并且其中所述RN包括具有比所述注入的光的带宽更宽的带宽的第二WDM滤波器，以便使滤波效果最小化。

公开(公告)号：US06826327B1

公开(公告)日：2004-11-30

申请号：US10024905

申请日：2001-12-18

申请人： Chang-Hee Lee ,  Wayne V. Sorin ,  Steven L. Shepherd

发明人： Chang-Hee Lee ,  Wayne V. Sorin ,  Steven L. Shepherd

IPC分类号： G02B626

CPC分类号： G02B6/29367 ,  G02B6/29389 ,  G02B6/29395 ,  G02F1/116 ,  G02F1/125 ,  G02F2201/17

摘要： A method, an apparatus and a system are described for receiving an optical signal in an optical filter and routing the optical signal through the optical filter multiple times.

摘要翻译： 描述了一种方法，装置和系统，用于在光学滤波器中接收光信号并且多次通过滤光器路由光信号。

公开(公告)号：US07515626B2

公开(公告)日：2009-04-07

申请号：US10558820

申请日：2003-05-29

申请人： Chang-Hee Lee ,  Wayne V. Sorin

发明人： Chang-Hee Lee ,  Wayne V. Sorin

IPC分类号： H01S3/092

CPC分类号： H04J14/02 ,  H04B10/2587 ,  H04B10/506 ,  H04J14/0226 ,  H04J14/0246 ,  H04J14/025 ,  H04J14/0282

摘要： Various methods, systems, and apparatuses are described in which a light source (101) capable of lasing is wavelength locked by an injected light signal. The light source (101) capable of lasing, such as a Fabry-Perot laser diode, may have antireflective coating on one or more facets of the light source (101) capable of lasing. The light source (101) capable of lasing receives a spectral slice of a light signal from a broadband light source (113) to wavelength lock the output wavelength of the light source (101) capable of lasing within the bandwidth of the injected light signal. A current pump (141) may bias the light source (101) capable of lasing to operate as a reflective regenerate semiconductor optical amplifier so that the injected light is reflected back out a front facet after being amplified and wavelength locked. The current pump (141) may also bias the light source (101) capable of lasing such that the externally injected narrow-band light signal into the light source (101) capable of lasing suppresses the lasing modes outside of the bandwidth of injected incoherent light.

摘要翻译： 描述了可以通过注入的光信号波长锁定能够激光的光源（101）的各种方法，系统和装置。 能够激光的光源（101），例如法布里 - 珀罗激光二极管，可以在能够发射的光源（101）的一个或多个面上具有抗反射涂层。 能够进行激光的光源（101）从宽带光源（113）接收光信号的光谱片，以在注入的光信号的带宽内波长锁定能够发光的光源（101）的输出波长。 电流泵（141）可以偏置能够发光的光源（101）作为反射再生半导体光放大器工作，使得注入的光在被放大和波长锁定之后被反射回前面。 电流泵（141）也可以偏置能够发射的光源（101），从而外部注入的窄带光信号进入能够激发的光源（101）中抑制注入非相干光带宽以外的激光模式 。

公开(公告)号：US09083469B2

公开(公告)日：2015-07-14

申请号：US13518340

申请日：2010-12-23

申请人： Chang-Hee Lee ,  Sang-Rok Mun ,  Sang-Min Oh

发明人： Chang-Hee Lee ,  Sang-Rok Mun ,  Sang-Min Oh

IPC分类号： H04J14/02 ,  H01S3/10 ,  H04B10/572 ,  H01S5/065

CPC分类号： H04B10/572 ,  H01S5/0656 ,  H04B10/506 ,  H04J14/0213 ,  H04J14/0282

摘要： The present invention discloses a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same.In a device and method for controlling a lasing wavelength of a tunable laser, and a wavelength division multiplexed-passive optical network having the same, it is possible to improve performance of the wavelength division multiplexed-passive optical network by automatically controlling a lasing wavelength of a tunable laser to be matched with a transmission wavelength of a wavelength division multiplexer/de-multiplexer using optical power or optical beating components obtained by a reflected optical component which is Raleigh backscattered or reflected, and is generated on an optical fiber.

摘要翻译： 本发明公开了一种用于控制可调激光器的激光波长的装置和方法，以及具有该激光器的波分复用无源光网络。 在用于控制可调谐激光器的激光波长的装置和方法以及具有该可调激光器的波分复用无源光网络的装置和方法中，通过自动控制波分复用无源光网络的激光波长，可以提高波分复用无源光网络的性能 可调谐激光器与波分复用器/去多路复用器的传输波长匹配，使用光学功率或通过反射的光学部件获得的光打击部件，该光学部件是罗利反向散射或反射的，并且在光纤上产生。

公开(公告)号：US08687972B2

公开(公告)日：2014-04-01

申请号：US13353204

申请日：2012-01-18

申请人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

发明人： Chang-Hee Lee ,  Sang-Mook Lee ,  Sil-Gu Mun

IPC分类号： H04B10/00

CPC分类号： H04J14/0246 ,  H04J14/0226 ,  H04J14/0247 ,  H04J14/025 ,  H04J14/0252 ,  H04J14/0257 ,  H04J14/0282

摘要： The present invention discloses a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method.In a multiple star wavelength division multiplexing passive optical network system using a wavelength assignment method according to the present invention, only one WDM-PON system can provides services for a plurality of subscribers who is distributed in a wide range of area through multiple starring, by setting one or more band for transmitting up-stream signals as an up-stream basic band and one or more band for transmitting down-stream signals as a down-stream basic band, respectively, and by dividing each of the up-stream basic band and the down-stream basic band into a plurality of wavelength sub-bands and assigning the divided sub-bands to different areas using a wavelength division multiplexer/de-multiplexer which splits a band into two or more sub-bands.

摘要翻译： 本发明公开了一种使用波长分配方法的多星波分复用无源光网络系统。 在使用根据本发明的波长分配方法的多星波分复用无源光网络系统中，只有一个WDM-PON系统可以通过多重主播向广泛范围内分布的多个用户提供服务，通过 设置一个或多个频带，用于发送上行信号作为上行基本频带和用于发送下行流信号的一个或多个频带作为下行基本频带，并且通过划分每个上行基本频带 和下游基本频带分成多个波长子带，并使用将频带分成两个或更多个子频带的波分多路复用器/去多路复用器将分割的子带分配给不同的区域。

公开(公告)号：US20130190685A1

公开(公告)日：2013-07-25

申请号：US13637638

申请日：2011-01-25

申请人： Min-Su Cho ,  Chang-Hee Lee

发明人： Min-Su Cho ,  Chang-Hee Lee

IPC分类号： A61M5/30

CPC分类号： A61M5/30 ,  A61M5/1782 ,  A61M5/31533 ,  A61M5/31543 ,  A61M5/31548 ,  A61M2005/202 ,  A61M2005/2073 ,  A61M2005/2411 ,  A61M2005/3114

摘要： The present invention relates to a needleless injector. The needleless injector includes: a piston shaft including a plurality of holders on an outer surface in a circumferential direction thereof; a cylinder assembly which slidably receives and supports the piston shaft in the forward and backward directions; a plurality of balls which are received in the cylinder assembly and disposed around the piston shaft, the plurality of balls being movable in a radial direction and inserted into the plurality of holders when the piston shaft is moved in the backward direction; a trigger button slidably coupled to a rear end of the cylinder assembly to form a trigger end interrupting the movement of the balls inserted into the holders in the radial direction, the trigger button releasing the interruption of the trigger end when the piston shaft is slid in the forward direction; a first elastic pressing unit for pressing the piston in the forward direction; and a second elastic pressing unit for pressing the trigger button in the backward direction.Thus, the needleless injector can have a simplified structure to improve the use convenience thereof.

摘要翻译： 无针注射器技术领域本发明涉及无针注射器。 无针注射器包括：活塞轴，其包括在其圆周方向上的外表面上的多个保持器; 气缸组件，其沿前后方向可滑动地容纳和支撑活塞轴; 多个滚珠，其容纳在所述滚筒组件中并且设置在所述活塞轴周围，所述多个滚珠可在径向移动并且当所述活塞轴向后移动时插入所述多个保持器中; 触发按钮，其可滑动地联接到所述气缸组件的后端以形成触发端，其中断所述径向上插入所述保持器中的所述滚珠的运动，所述触发按钮在所述活塞轴滑动时释放所述触发端的中断 前进方向 第一弹性按压单元，用于向前按压活塞; 以及用于沿向后方向按压触发按钮的第二弹性按压单元。 因此，无针注射器可以具有简化的结构以改善其使用便利性。