公开(公告)号：US20050063704A1

公开(公告)日：2005-03-24

申请号：US10890477

申请日：2004-07-13

申请人： Eun-Hwa Lee ,  Dong-Jae Shin ,  Jung-Kee Lee ,  Dae-Kwang Jung ,  Jun-Youn Kim

发明人： Eun-Hwa Lee ,  Dong-Jae Shin ,  Jung-Kee Lee ,  Dae-Kwang Jung ,  Jun-Youn Kim

IPC分类号： H04B10/04 ,  H04B10/155 ,  H04J14/02 ,  H04J14/00

CPC分类号： H04B10/506 ,  H04J14/02

摘要： A WDM optical transmitter using a wideband gain laser comprises a plurality of wideband gain lasers and a wavelength division multiplexer. Each wideband gain laser includes a gain medium with a 3 dB bandwidth of 40 nm or more at a threshold current, and it amplifies corresponding incoherent light injected into the gain medium and outputs a corresponding channel. The multiplexer multiplexes channels, outputted from the wideband gain lasers, into an optical signal in a WDM scheme and outputs the multiplexed optical signal.

摘要翻译： 使用宽带增益激光器的WDM光发射机包括多个宽带增益激光器和波分复用器。 每个宽带增益激光器包括在阈值电流下具有40nm或更大的3dB带宽的增益介质，并且其放大注入到增益介质中的相应非相干光并输出相应的通道。 多路复用器将从宽带增益激光器输出的信道复用为WDM方案中的光信号，并输出复用的光信号。

公开(公告)号：US07123633B2

公开(公告)日：2006-10-17

申请号：US10691392

申请日：2003-10-22

申请人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

发明人： Dong-Jae Shin ,  Dae-Kwang Jung ,  Jea-Hyuck Lee ,  Seong-Taek Hwang ,  Yun-Je Oh

IPC分类号： H01S3/098 ,  H04J14/02

CPC分类号： H04J14/02 ,  H01S5/0268 ,  H01S5/0608 ,  H01S5/0654 ,  H01S5/0656 ,  H01S5/4006 ,  H01S5/4087

摘要： A method for maintaining the mode-locked state of a Fabry-Perot (FP) laser and a WDM light source using the same method for use in WDM optical communication are disclosed. The mode-locked state can be maintained irrespective of temperature change, without use of a temperature controller, by spectrum-slicing the incoherent light generated by a light source element and injecting the spectrum-sliced light to the FP laser, then the FP laser amplifies and outputs only a lasing mode coinciding with the wavelength of the injected light, wherein a lasing-mode interval of the FP laser is set to be less than a 3 dB linewidth of the injected light, so that at least one lasing mode exists inside the 3 dB linewidth of the injected light irrespective of changes in external temperature.

摘要翻译： 公开了一种使用与WDM光通信相同的方法来维持法布里 - 珀罗（FP）激光器和WDM光源的锁模状态的方法。 通过对光源元件产生的非相干光进行频谱分片，并将光谱切片光注入到FP激光器中，不管温度变化如何，可以保持模式锁定状态而不使用温度控制器，然后FP激光放大 并且仅输出与注入的光的波长一致的激光模式，其中FP激光器的激光模式间隔被设置为小于注入的光的3dB线宽，使得至少一个激光模式存在于 不管外部温度的变化，注入光线的3dB线宽。

公开(公告)号：US07073956B1

公开(公告)日：2006-07-11

申请号：US11185040

申请日：2005-07-20

申请人： Dong-Jae Shin ,  Chang-Sup Shim ,  Seong-Taek Hwang ,  Dae-Kwang Jung

发明人： Dong-Jae Shin ,  Chang-Sup Shim ,  Seong-Taek Hwang ,  Dae-Kwang Jung

IPC分类号： G02B6/36

CPC分类号： G02B6/4246 ,  G02B6/2706 ,  G02B6/29361 ,  G02B6/29385

摘要： Disclosed are an optical transceiver and an passive optical network using the same. The optical transceiver includes a polarization splitter for splitting injected light input from an outside of the optical transceiver into a first polarization component and a second polarization component, a light injected transmitter for receiving the first polarization component and outputting an optical signal generated based on the first polarization component, and an optical receiver for detecting an electrical signal based on the second polarization component.

摘要翻译： 公开了一种光收发器和使用其的无源光网络。 光收发器包括：偏振分离器，用于将从光收发器的外部输入的注入光分成第一偏振分量和第二偏振分量;光注入发射器，用于接收第一偏振分量，并输出基于第一偏振分量产生的光信号 偏振分量和用于基于第二偏振分量检测电信号的光接收器。

公开(公告)号：US20120099813A1

公开(公告)日：2012-04-26

申请号：US13239936

申请日：2011-09-22

申请人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

发明人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

IPC分类号： G02F1/035

CPC分类号： G02F1/025 ,  G02F1/2257 ,  G02F2201/066 ,  G02F2201/15

摘要： A phase shifter includes an optical waveguide, a plurality of impurity regions and a plurality of electrodes. The optical waveguide receives an optical input signal and outputs an optical output signal. The impurity regions include respective charge carriers. The impurity regions are disposed in contact with the optical waveguide at respective contact surface, where at least one of the contact surfaces has a zigzag pattern. The electrodes are connected to the respective impurity regions. Application of an electrical signal to at least one of the electrodes phase-shifts the optical output signal with respect to the optical input signal. Therefore, the phase shifter may efficiently vary a magnitude of the phase shift of the optical output signal.

摘要翻译： 移相器包括光波导，多个杂质区和多个电极。 光波导接收光输入信号并输出​​光输出信号。 杂质区域包括各自的载流子。 杂质区域设置成在相应的接触表面处与光波导接触，其中至少一个接触表面具有锯齿形图案。 电极连接到各个杂质区域。 将电信号施加到至少一个电极相对于光输入信号使光输出信号相移。 因此，移相器可以有效地改变光输出信号的相移幅度。

公开(公告)号：US07123406B2

公开(公告)日：2006-10-17

申请号：US10867035

申请日：2004-06-14

申请人： Dong-Jae Shin ,  Jeong-Seok Lee ,  Seung-Woo Kim ,  Seong-Taek Hwang

发明人： Dong-Jae Shin ,  Jeong-Seok Lee ,  Seung-Woo Kim ,  Seong-Taek Hwang

IPC分类号： H10S5/50

CPC分类号： H01S5/50 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/0078 ,  H01S5/5018

摘要： A reflective semiconductor optical amplifier light source is disclosed. The reflective semiconductor optical amplifier light source includes a transmissive type semiconductor optical amplifier for creating and amplifying spontaneous emission light, a reflector for reflecting amplified spontaneous emission light outputted from the semiconductor optical amplifier such that amplified spontaneous emission light is reflected back into the semiconductor optical amplifier, and a bandpass filter having a predetermined wavelength band width for limiting wavelength bands of the amplified spontaneous emission light capable of passing through the bandpass filter. In one aspect of the invention, the bandpass filter is interposed between the semiconductor optical amplifier and the reflector. In another aspect, a polarization filter is imposed to limit the reflected emission light to a predetermined polarization.

摘要翻译： 公开了一种反射半导体光放大器光源。 反射半导体光放大器光源包括用于产生和放大自发发射光的透射型半导体光放大器，用于反射从半导体光放大器输出的放大的自发发射光的反射器，使得放大的自发发射光被反射回到半导体光放大器 以及具有预定波长带宽的带通滤波器，用于限制能够通过带通滤波器的放大的自发发射光的波段。 在本发明的一个方面，带通滤波器插在半导体光放大器和反射器之间。 在另一方面，施加偏振滤光器以将反射的发射光限制到预定的偏振。

公开(公告)号：US07099530B2

公开(公告)日：2006-08-29

申请号：US10841051

申请日：2004-05-07

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

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

IPC分类号： G02B6/26

CPC分类号： H01S5/50 ,  H01L27/15 ,  H01S5/0265 ,  H01S5/028

摘要： 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.

摘要翻译： 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：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。

公开(公告)号：US08634678B2

公开(公告)日：2014-01-21

申请号：US13239936

申请日：2011-09-22

申请人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

发明人： Kwang-Hyun Lee ,  Dong-Jae Shin ,  Kyoung-Ho Ha

IPC分类号： G02F1/035

CPC分类号： G02F1/025 ,  G02F1/2257 ,  G02F2201/066 ,  G02F2201/15

摘要： A phase shifter includes an optical waveguide, a plurality of impurity regions and a plurality of electrodes. The optical waveguide receives an optical input signal and outputs an optical output signal. The impurity regions include respective charge carriers. The impurity regions are disposed in contact with the optical waveguide at respective contact surface, where at least one of the contact surfaces has a zigzag pattern. The electrodes are connected to the respective impurity regions. Application of an electrical signal to at least one of the electrodes phase-shifts the optical output signal with respect to the optical input signal. Therefore, the phase shifter may efficiently vary a magnitude of the phase shift of the optical output signal.

摘要翻译： 移相器包括光波导，多个杂质区和多个电极。 光波导接收光输入信号并输出​​光输出信号。 杂质区域包括各自的载流子。 杂质区域设置成在相应的接触表面处与光波导接触，其中至少一个接触表面具有锯齿形图案。 电极连接到各个杂质区域。 将电信号施加到至少一个电极相对于光输入信号使光输出信号相移。 因此，移相器可以有效地改变光输出信号的相移幅度。

公开(公告)号：US20050144221A1

公开(公告)日：2005-06-30

申请号：US10915100

申请日：2004-08-10

申请人： Dong-Jae Shin ,  Yun-Hee Seok

发明人： Dong-Jae Shin ,  Yun-Hee Seok

IPC分类号： H04Q7/24 ,  G06F15/16 ,  G06F17/30

CPC分类号： G06F16/957

摘要： An apparatus and method for downloading a picture from a picture server at the time of reviewing the picture in a mobile communication terminal. The mobile communication terminal receives at least one picture page of a first screen for a picture-review operating mode from the picture server and displays the received picture page. The mobile communication terminal determines whether a prefetch function has been set to download a preset number of picture pages. If the prefetch function has been set, the mobile communication terminal carries out a prefetch operation for downloading in advance, from the picture server, a next picture page that a user can view in a forward direction.

摘要翻译： 一种用于在移动通信终端中查看图像时从图像服务器下载图像的装置和方法。 移动通信终端从图像服务器接收图像审查操作模式的第一屏幕的至少一个图像页面，并显示所接收的图像页面。 移动通信终端确定是否设置了预取功能来下载预设数量的图片页面。 如果预取功能已被设置，则移动通信终端从图像服务器预先执行用于在向前方观看的下一图像页面的预取操作。

公开(公告)号：US20050105171A1

公开(公告)日：2005-05-19

申请号：US10867035

申请日：2004-06-14

申请人： Dong-Jae Shin ,  Jeong-Seok Lee ,  Seung-Woo Kim ,  Seong-Taek Hwang

发明人： Dong-Jae Shin ,  Jeong-Seok Lee ,  Seung-Woo Kim ,  Seong-Taek Hwang

IPC分类号： H01S5/50 ,  H01S3/00 ,  H01S5/00

CPC分类号： H01S5/50 ,  H01S5/005 ,  H01S5/0064 ,  H01S5/0078 ,  H01S5/5018

摘要： A reflective semiconductor optical amplifier light source is disclosed. The reflective semiconductor optical amplifier light source includes a transmissive type semiconductor optical amplifier for creating and amplifying spontaneous emission light, a reflector for reflecting amplified spontaneous emission light outputted from the semiconductor optical amplifier such that amplified spontaneous emission light is reflected back into the semiconductor optical amplifier, and a bandpass filter having a predetermined wavelength band width for limiting wavelength bands of the amplified spontaneous emission light capable of passing through the bandpass filter. In one aspect of the invention, the bandpass filter is interposed between the semiconductor optical amplifier and the reflector. In another aspect, a polarization filter is imposed to limit the reflected emission light to a predetermined polarization.

摘要翻译： 公开了一种反射半导体光放大器光源。 反射半导体光放大器光源包括用于产生和放大自发发射光的透射型半导体光放大器，用于反射从半导体光放大器输出的放大的自发发射光的反射器，使得放大的自发发射光被反射回到半导体光放大器 以及具有预定波长带宽的带通滤波器，用于限制能够通过带通滤波器的放大的自发发射光的波段。 在本发明的一个方面，带通滤波器插在半导体光放大器和反射器之间。 在另一方面，施加偏振滤光器以将反射的发射光限制到预定的偏振。