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1. 发明授权

US06992816B2 Apparatus and method for gain-spectrum-tilt compensation in long-wavelength band dispersion-compensating hybrid fiber amplifier 失效
标题翻译：在长波段色散补偿混合光纤放大器中增益频谱倾斜补偿的装置和方法
公开(公告)号：US06992816B2
公开(公告)日：2006-01-31
申请号：US10729088
申请日：2003-12-04
申请人： Hee Sang Chung , Won Kyoung Lee , Sun Hyok Chang , Hyun Jae Lee , Moo Jung Chu , Han Hyub Lee , Dong Han Lee , Yong Bae Lee
发明人： Hee Sang Chung , Won Kyoung Lee , Sun Hyok Chang , Hyun Jae Lee , Moo Jung Chu , Han Hyub Lee , Dong Han Lee , Yong Bae Lee
IPC分类号： H01S3/00
CPC分类号： H01S3/06758 , H01S3/1301 , H01S3/302 , H01S2301/04
摘要： The present invention provides an apparatus and method for compensating for the variation of a gain spectrum attributable to the temperature variation of a fiber amplifier, and a long-wavelength band dispersion-compensating hybrid amplifier equipped with the gain spectrum compensating apparatus. The apparatus includes a DCF located between a first amplification stage and a second amplification stage to compensate for dispersion of an optical signal output from the first amplification stage and perform Raman amplification of the optical signal using input pumping light; at least one pumping light provision means for providing forward or backward pumping light to the DCF; first and second temperature detection means for detecting temperature variations of the first and second amplification stages, respectively; and control means for controlling intensity of the pumping light of the pumping light provision means according to the detected temperature variations.
摘要翻译：本发明提供一种用于补偿归因于光纤放大器的温度变化的增益谱的变化的装置和方法，以及配备有增益谱补偿装置的长波长带色散补偿混合放大器。该装置包括位于第一放大级和第二放大级之间的DCF，以补偿从第一放大级输出的光信号的色散，并使用输入泵浦光执行光信号的拉曼放大; 至少一个泵送光提供装置，用于向DCF提供向前或向后的泵浦光; 第一和第二温度检测装置，用于分别检测第一和第二放大级的温度变化; 以及用于根据检测到的温度变化来控制泵送光提供装置的泵浦光的强度的控制装置。

2. 发明授权

US07230958B2 Raman amplifier and raman pumping method 有权
标题翻译：拉曼放大器和拉曼抽水法
公开(公告)号：US07230958B2
公开(公告)日：2007-06-12
申请号：US10835225
申请日：2004-04-28
申请人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
发明人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
IPC分类号： H01S3/30
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094076 , H01S3/094096 , H01S3/1301 , H01S3/1305
摘要： Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the gain flatness of a Raman gain. A control unit directs the light intensity control unit to control the light intensity of the pumping light in synchronization with changes in the wavelength of the pumping light.
摘要翻译：提供了拉曼放大器和拉曼泵浦方法。光源单元输出具有周期性变化的波长的泵浦光。光强度控制单元使用泵浦光来改变泵浦光的光强度，以提高拉曼增益的增益平坦度。控制单元引导光强度控制单元与泵浦光的波长的变化同步地控制泵浦光的光强度。

3. 发明申请

US20050122570A1 Raman amplifier and raman pumping method 有权
标题翻译：拉曼放大器和拉曼抽水法
公开(公告)号：US20050122570A1
公开(公告)日：2005-06-09
申请号：US10835225
申请日：2004-04-28
申请人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
发明人： Sun Hyok Chang , Hee Sang Chung , Jin Soo Han , Ji Sung Jung , Heuk Park , Won Kyoung Lee , Hyun Jae Lee
IPC分类号： G02F1/35 , H01S3/067 , H01S3/094 , H01S3/13 , H01S3/131 , H01S3/30
CPC分类号： H01S3/302 , H01S3/06754 , H01S3/094076 , H01S3/094096 , H01S3/1301 , H01S3/1305
摘要： Provided are a Raman amplifier and a Raman pumping method. A light source unit outputs a pumping light having a wavelength that periodically changes. A light intensity control unit varies a light intensity of the pumping light using the pumping light to improve the gain flatness of a Raman gain. A control unit directs the light intensity control unit to control the light intensity of the pumping light in synchronization with changes in the wavelength of the pumping light.
摘要翻译：提供了拉曼放大器和拉曼泵浦方法。光源单元输出具有周期性变化的波长的泵浦光。光强度控制单元使用泵浦光来改变泵浦光的光强度，以提高拉曼增益的增益平坦度。控制单元引导光强度控制单元与泵浦光的波长的变化同步地控制泵浦光的光强度。

4. 发明授权

US07154663B2 Dispersion compensating fiber for S-band discrete Raman amplifier 失效
标题翻译：用于S波段离散拉曼放大器的色散补偿光纤
公开(公告)号：US07154663B2
公开(公告)日：2006-12-26
申请号：US11196464
申请日：2005-08-03
申请人： Won Kyoung Lee , Sun Hyok Chang , Moo Jung Chu
发明人： Won Kyoung Lee , Sun Hyok Chang , Moo Jung Chu
IPC分类号： H01S4/00 , H04B10/12
CPC分类号： H01S3/302 , G02B6/02028 , G02B6/02261 , G02B6/0281 , G02B6/03644 , H01S3/06725 , H01S3/06729 , H01S3/06775 , H01S3/1695
摘要： A dispersion compensating fiber (DCF), which is an amplification medium of an S-band discrete Raman amplifier (RA), has a trapezoid core, an inner cladding surrounding the trapezoid core; and an outer cladding surrounding the inner cladding. A ring is disposed between the inner cladding and the outer cladding. The refractive index plotted across the diameter of the trapezoid core as a function of distance is substantially trapezoidal in shape. The difference in refractive index between the trapezoid core and the outer cladding is 1.2 to 1.6%; between the inner cladding and the outer cladding is 0.4 to 0.8%; and between the ring and the outer cladding is 0.2 to 0.6%. The thickness of the ring is 0.8 to 1.2 times the radius of the trapezoid core, and the thickness of the inner cladding is 1 to 3 times the radius of the trapezoid core.
摘要翻译：作为S波段离散拉曼放大器（RA）的放大介质的色散补偿光纤（DCF）具有梯形铁芯，围绕梯形铁芯的内包层; 以及围绕内包层的外包层。环设置在内包层和外包层之间。作为距离的函数的梯形铁芯的直径的折射率基本上呈梯形。梯形铁芯与外包层之间的折射率差为1.2〜1.6％。内包层与外包层之间为0.4〜0.8％; 并且环与外包层之间为0.2至0.6％。环的厚度是梯形铁芯的半径的0.8〜1.2倍，内包层的厚度为梯形铁芯的半径的1〜3倍。

5. 发明授权

US07385753B2 Hybrid optical amplifier using gain-clamped semiconductor optical amplifier enabling raman amplification 有权
标题翻译：混合光放大器采用增益钳位半导体光放大器，实现拉曼放大
公开(公告)号：US07385753B2
公开(公告)日：2008-06-10
申请号：US11010350
申请日：2004-12-14
申请人： Hee Sang Chung , Sun Hyok Chang , Kwangjoon Kim
发明人： Hee Sang Chung , Sun Hyok Chang , Kwangjoon Kim
IPC分类号： H01S3/00
CPC分类号： H01S3/2375 , H01S3/06754 , H01S3/10007 , H01S3/302 , H01S5/1071 , H01S5/12 , H01S5/125 , H01S5/14 , H01S5/5072
摘要： Provided is a hybrid optical amplifier using a gain-clamped semiconductor optical amplifier enabling Raman amplification. The hybrid optical amplifier comprises a spool of optical fiber used as transmission line in the optical communication, a GCSOA amplifying optical signal input via the optical fiber and generating a self-oscillation laser beam for gain-clamping through the gain medium, and a backward pumping Raman optical amplifier inducing Raman amplification by emitting the self-oscillation laser beam generated by the GCSOA into the optical fiber. Therefore, the Raman amplification can be obtained with a relatively simple structure using the GCSOA.
摘要翻译：提供了一种使用拉曼放大器的增益钳位半导体光放大器的混合光放大器。混合光放大器包括用作光通信中的传输线的光纤卷轴，经由光纤输入的GCSOA放大光信号，并通过增益介质产生用于增益钳位的自激振荡激光束，以及反向泵浦拉曼光放大器通过将由GCSOA产生的自激振荡激光束发射到光纤中来诱导拉曼放大。因此，使用GCSOA可以通过相对简单的结构获得拉曼放大。

6. 发明授权

US08995843B2 Multicarrier based optical signal transmitting apparatus and optical signal receiving apparatus 有权
标题翻译：基于多载波的光信号发送装置和光信号接收装置
公开(公告)号：US08995843B2
公开(公告)日：2015-03-31
申请号：US13609908
申请日：2012-09-11
申请人： Hwan Seok Chung , Sun Hyok Chang
发明人： Hwan Seok Chung , Sun Hyok Chang
IPC分类号： H04B10/12 , H04J14/02
CPC分类号： H04J14/026 , H04J14/0224
摘要： Disclosed is an optical signal transmitting apparatus including: an optical carrier generator configured to generate a plurality of optical carriers and outputs the optical carriers to optical modulators corresponding to the optical carriers, respectively; a plurality of optical modulators configured to modulate the optical carriers, respectively, according to an input signal; and an optical combiner configured to couple a plurality of optical signals from the plurality of optical modulators.
摘要翻译：公开了一种光信号发送装置，包括：光载波发生器，被配置为生成多个光载波并将光载波分别输出到对应于光载波的光调制器; 多个光调制器，被配置为分别根据输入信号调制光载波; 以及光学组合器，被配置为耦合来自所述多个光学调制器的多个光信号。

7. 发明申请

US20120070149A1 COHERENT OPTICAL RECEIVING APPARATUS AND OPTICAL SIGNAL PROCESSING METHOD 有权
标题翻译：相关光接收装置和光信号处理方法
公开(公告)号：US20120070149A1
公开(公告)日：2012-03-22
申请号：US13231328
申请日：2011-09-13
申请人： Hwan Seok CHUNG , Sun Hyok Chang
发明人： Hwan Seok CHUNG , Sun Hyok Chang
IPC分类号： H04J14/06
CPC分类号： H04J14/002 , H04B10/614 , H04B10/616
摘要： Provided is a coherent optical receiving apparatus and an optical signal processing method. The coherent optical receiving apparatus may include an optical hybrid unit to generate an optical signal by combining a first optical signal inputted from an optical transmitting apparatus and a second optical signal inputted from a local oscillator, a polarization demuxer to demultiplex the optical signal outputted from the optical hybridizing unit, a frequency offset compensator to estimate a frequency offset of at least one of even-numbered samples and odd-numbered samples, and to compensate for a frequency offset of the even-numbered samples and a frequency offset of the odd-numbered samples using the at least one estimated frequency offset, and a carver distortion compensator to compensate for phase distortions of the samples for which the compensation for the frequency offset is performed, the phase distortions being generated by the optical transmitting apparatus.
摘要翻译：提供了一种相干光接收装置和光信号处理方法。相干光接收装置可以包括：光混合单元，用于通过组合从光发射装置输入的第一光信号和从本机振荡器输入的第二光信号来产生光信号;偏振解复用器，用于对从光学杂交单元，用于估计偶数样本和奇数样本中的至少一个的频率偏移的频率偏移补偿器，并且补偿偶数样本的频率偏移和奇数编号的频率偏移使用所述至少一个估计频率偏移的采样，以及用于补偿执行对所述频率偏移的补偿的样本的相位失真的雕刻失真补偿器，所述相位失真由所述光发送装置产生。

8. 发明授权

US08670679B2 Coherent optical receiving apparatus and optical signal processing method 有权
标题翻译：相干光接收装置和光信号处理方法
公开(公告)号：US08670679B2
公开(公告)日：2014-03-11
申请号：US13231328
申请日：2011-09-13
申请人： Hwan Seok Chung , Sun Hyok Chang
发明人： Hwan Seok Chung , Sun Hyok Chang
IPC分类号： H04B10/06
CPC分类号： H04J14/002 , H04B10/614 , H04B10/616
摘要： Provided is a coherent optical receiving apparatus and an optical signal processing method. The coherent optical receiving apparatus may include an optical hybrid unit to generate an optical signal by combining a first optical signal inputted from an optical transmitting apparatus and a second optical signal inputted from a local oscillator, a polarization demuxer to demultiplex the optical signal outputted from the optical hybridizing unit, a frequency offset compensator to estimate a frequency offset of at least one of even-numbered samples and odd-numbered samples, and to compensate for a frequency offset of the even-numbered samples and a frequency offset of the odd-numbered samples using the at least one estimated frequency offset, and a carver distortion compensator to compensate for phase distortions of the samples for which the compensation for the frequency offset is performed, the phase distortions being generated by the optical transmitting apparatus.
摘要翻译：提供了一种相干光接收装置和光信号处理方法。相干光接收装置可以包括：光混合单元，用于通过组合从光发射装置输入的第一光信号和从本机振荡器输入的第二光信号来产生光信号;偏振解复用器，用于对从光学杂交单元，用于估计偶数样本和奇数样本中的至少一个的频率偏移的频率偏移补偿器，并且补偿偶数样本的频率偏移和奇数编号的频率偏移使用所述至少一个估计频率偏移的采样，以及用于补偿执行对所述频率偏移的补偿的样本的相位失真的雕刻失真补偿器，所述相位失真由所述光发送装置产生。

9. 发明申请

US20120121264A1 APPARATUS AND METHOD FOR TRANSMITTING LIGHT, AND APPARATUS AND METHOD FOR RECEIVING LIGHT 审中-公开
标题翻译：用于发射光的装置和方法，以及用于接收光的装置和方法
公开(公告)号：US20120121264A1
公开(公告)日：2012-05-17
申请号：US13386564
申请日：2010-07-14
申请人： Hwan Seok Chung , Sun Hyok Chang , Kwangjoon Kim
发明人： Hwan Seok Chung , Sun Hyok Chang , Kwangjoon Kim
IPC分类号： H04J14/06 , H04J14/02
CPC分类号： H04B10/5053 , H04B10/5561 , H04B10/66
摘要： An optical transmitting apparatus optically modulates a transmitting signal to transmit the signal to an optical receiving apparatus using a phase of two optical carriers having each wavelength, and an optical receiving apparatus demodulates an optical signal having a modulated phase with intensity modulation to detect a transmitting signal.
摘要翻译：光发送装置对发送信号进行光调制，使用具有各波长的两个光载波的相位向光接收装置发送信号，并且光接收装置用强度调制解调具有调制相位的光信号，以检测发送信号。

10. 发明授权

US08009986B2 Optical node for mesh-type WDM optical network 失效
标题翻译：网状WDM光网络的光节点
公开(公告)号：US08009986B2
公开(公告)日：2011-08-30
申请号：US11810896
申请日：2007-06-07
申请人： Sun Hyok Chang , Hwan Seok Chung , Sang Soo Lee , Kwangjoon Kim
发明人： Sun Hyok Chang , Hwan Seok Chung , Sang Soo Lee , Kwangjoon Kim
IPC分类号： H04J14/02
CPC分类号： H04J14/021 , H04J14/0206 , H04J14/0212 , H04J14/0217
摘要： An optical node capable of supporting a mesh-type optical network is provided. The node includes: N ROADMs, which separate specific wavelength channels from a multiple wavelength channel optical signal that is input from any node constituting the optical network, allows the rest of the wavelength channels to be passed, and combine another added wavelength channel with the passed wavelength channel to allow the combined wavelength channel to be passed; an N×1 optical switch which selects the specific wavelength channel separated from one of the N ROADMs and inputs the specific wavelength channel into an optical transceiver and selects one of the N ROADMs and connects a wavelength channel that is output from the optical transceiver to the selected ROADM; and an electrical cross connect switch which drops a part of electrical signal bandwidth of the specific wavelength channels separated by the ROADM, which is converted into the electrical signals in the optical transceiver, toward an external client and combines the rest of the electrical signal bandwidth with a electrical signal added by the external client to form an electrical signal bandwidth of a wavelength channel and output the electrical signal to the optical transceiver. Accordingly, optical fiber inputs and outputs in various directions can be supported, and the number of WDM transceivers used for each node is remarkably reduced, thereby improving efficiency and economical efficiency of a network.
摘要翻译：提供了一种支持网状光网络的光节点。节点包括：N个ROADM，其将特定波长信道与从构成光网络的任何节点输入的多波长信道光信号分离，允许其余的波长信道通过，并将另一个添加的波长信道与传递的波长通道以允许组合波长通道通过; N×1光开关，其选择从N个ROADM之一分离的特定波长信道，并将特定波长信道输入到光收发器中，并选择N个ROADM中的一个，并将从光收发器输出的波长信道连接到选择ROADM; 以及电交叉开关，其将由ROADM分离的特定波长信道的一部分电信号带宽（其被转换成光收发器中的电信号）向外部客户端转移，并将其余电信号带宽与由外部客户端添加的电信号以形成波长信道的电信号带宽并将电信号输出到光收发器。因此，可以支持各个方向的光纤输入和输出，并且显着地减少了用于每个节点的WDM收发器的数量，从而提高了网络的效率和经济效率。

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