公开(公告)号：US07796258B2

公开(公告)日：2010-09-14

申请号：US12191309

申请日：2008-08-14

申请人： San-Liang Lee ,  Chun-Liang Yang ,  Dar-Zu Hsu

发明人： San-Liang Lee ,  Chun-Liang Yang ,  Dar-Zu Hsu

IPC分类号： G01J4/00

CPC分类号： H04L1/20

摘要： A non-sampling-based Q-factor measuring apparatus and method use a power conversion module to transform the power variation of inputted optical signals in time domain into the variation in other domains, such as optical wavelength, optical polarization and different output ports of optical elements. Taking optical wavelength as an example, different levels of power variation respond different outputs of wavelength variation through the use of a power-to-wavelength conversion module. An optical filter then separates the inputted optical signals with different wavelengths. The power average of a wavelength for its corresponding optical signals is further calculated by a photo detector. Thereby, the information of the power variation for the inputted optical signals at levels 1 and 0 can be obtained, and the Q-factor for the inputted optical signals is easily measured.

公开(公告)号：US07421202B2

公开(公告)日：2008-09-02

申请号：US10305021

申请日：2002-11-27

申请人： Dar-Zu Hsu

发明人： Dar-Zu Hsu

IPC分类号： H04J14/00

CPC分类号： H04Q11/0005 ,  H04J14/005 ,  H04Q11/0066 ,  H04Q2011/0077

摘要： A photonic label switching architecture. The architecture includes a photonic label extractor to split an externally input first optical packet data into a photonic label and a payload. Then, the photonic label is input to a photonic label processing and swapping device to duplicate as a plurality of parallel copies for decoding and producing an auto-correlation output. According to the auto-correlation output, a photonic label swapping path is chosen, a new photonic label is produced, and an output port of an optical switch is chosen. A new optical packet data which is the result of the new photonic label adjoining the payload is output to the chosen output port of the optical switch.

摘要翻译： 光子标签交换架构。 该架构包括光子标签提取器，用于将外部输入的第一光分组数据分割成光子标签和有效载荷。 然后，将光子标签输入到光子标签处理和交换装置，以复制为多个并行副本，用于解码并产生自相关输出。 根据自相关输出，选择光子标签交换路径，产生新的光子标签，并选择光开关的输出端口。 作为与有效载荷相邻的新光子标签的结果的新的光分组数据被输出到所选择的光开关的输出端口。

公开(公告)号：US07391970B2

公开(公告)日：2008-06-24

申请号：US11026352

申请日：2004-12-30

申请人： San-Liang Lee ,  Chun-Liang Yang ,  Pei-Min Gong ,  Dar-Zu Hsu ,  Ming-Hsiao Yang ,  Yun-Lung Chou

发明人： San-Liang Lee ,  Chun-Liang Yang ,  Pei-Min Gong ,  Dar-Zu Hsu ,  Ming-Hsiao Yang ,  Yun-Lung Chou

IPC分类号： H04B10/08

CPC分类号： H04B10/07953 ,  H04B10/071 ,  H04B10/07957 ,  H04J14/02

摘要： An apparatus and a method for monitoring optical signal-to-noise ratio are provided. It can be applied in dense wavelength-division multiplexed networks to monitor the transmission quality of each optical channel. The apparatus comprises an optical circulator, a tunable optical filter, a dithering signal, a dithered reflector, and two photodiodes. It can be integrated on a single chip. The invention utilizes the dithering and reflection functions of the dithered reflector, and passes the signal and the noise through the tunable optical filter once and twice, respectively. When the tunable optical filter is scanning and filtering the whole spectrum, the signal and noise powers are measured by the two photodiodes, respectively. The OSNR for each optical channel is then calculated according to the signal and noise powers. It can monitor channel location, wavelength drift, and OSNR by including a wavelength locker to act as an optical channel analyzer.

摘要翻译： 提供了一种用于监测光信噪比的装置和方法。 它可以应用于密集的波分复用网络，以监测每个光通道的传输质量。 该装置包括光循环器，可调光滤波器，抖动信号，抖动反射器和两个光电二极管。 它可以集成在单个芯片上。 本发明利用抖动反射器的抖动和反射功能，并将信号和噪声分别通过可调光滤波器一次和两次传递。 当可调滤光器扫描和滤波整个光谱时，信号和噪声功率分别由两个光电二极管测量。 然后根据信号和噪声功率计算每个光通道的OSNR。 它可以通过包含一个波长锁定器作为光通道分析仪来监视通道位置，波长漂移和OSNR。

公开(公告)号：US20050063040A1

公开(公告)日：2005-03-24

申请号：US10773180

申请日：2004-02-09

申请人： San-Liang Lee ,  Dar-Zu Hsu ,  Pei-Miin Gong

发明人： San-Liang Lee ,  Dar-Zu Hsu ,  Pei-Miin Gong

IPC分类号： G02F1/01 ,  G02F1/35 ,  G02F1/39 ,  G02F2/00 ,  G02F2/02

CPC分类号： G02F1/3536 ,  G02F2/002

摘要： The present invention provides a wavelength converter with wideband four-wave-mixing, which includes a laser diode, an optical modulator, a first and a second polarization controllers, a first, a second and a third tunable lasers, an optical coupler, a semiconductor optical amplifier (SOA) and a multiplexer. The present invention utilizes an assist beam that can improve the recovery rate and saturation power of the SOA. While the SOA is operated at a bias current close to the transparent condition for the assist beam, it does not influence the gain of the SOA wavelength converter.

公开(公告)号：US07843564B2

公开(公告)日：2010-11-30

申请号：US12191310

申请日：2008-08-14

申请人： San-Liang Lee ,  Chun-Liang Yang ,  Dar-Zu Hsu

发明人： San-Liang Lee ,  Chun-Liang Yang ,  Dar-Zu Hsu

IPC分类号： G01J4/00

CPC分类号： H04L1/20

摘要： A non-sampling-based Q-factor measuring apparatus and method use a power conversion module to transform the power variation of inputted optical signals in time domain into the variation in other domains, such as optical wavelength, optical polarization and different output ports of optical elements. Taking optical wavelength as an example, different levels of power variation respond different outputs of wavelength variation through the use of a power-to-wavelength conversion module. An optical filter then separates the inputted optical signals with different wavelengths. The power average of a wavelength for its corresponding optical signals is further calculated by a photo detector. Thereby, the information of the power variation for the inputted optical signals at levels 1 and 0 can be obtained, and the Q-factor for the inputted optical signals is easily measured.

摘要翻译： 基于非采样的Q因子测量装置和方法使用功率转换模块来将时域中输入的光信号的功率变化变换成其他领域的变化，例如光学波长，光学偏振和光学不同的输出端口 元素。 以光波长为例，不同级别的功率变化通过使用功率到波长转换模块来响应波长变化的不同输出。 然后，滤光器将输入的不同波长的光信号分离。 通过光电检测器进一步计算其相应光信号的波长的功率平均值。 因此，可以获得在等级1和0的输入光信号的功率变化的信息，并且容易地测量输入的光信号的Q因子。

公开(公告)号：US07532818B2

公开(公告)日：2009-05-12

申请号：US11475877

申请日：2006-06-28

申请人： Dar-Zu Hsu ,  San-Liang Lee

发明人： Dar-Zu Hsu ,  San-Liang Lee

IPC分类号： H04B10/08 ,  H04B17/00

CPC分类号： H04B10/07953

摘要： An apparatus and method for measuring a coherence sampling quality-factor (Q-factor) are provided, which are used to monitor quality of an optical signal in an optical network in real time. The quality is evaluated by a Q-factor. A laser diode and a wavelength converter are used in the apparatus to achieve wavelength coherence and amplification of the optical signal. Furthermore, the laser diode and an optical switch are used together to obtain an optical pulse that can be utilized to sample the optical signal. Therefore, after entering into an optoelectronic converter, a baseband signal in the optical signal is reconstructed through the amplification of the optical signal and the coupling of the optical pulse, so as to detect the Q-factor and to monitor the quality of the optical signal.

摘要翻译： 提供了用于测量相干采样质量因子（Q因子）的装置和方法，其用于实时监测光网络中的光信号的质量。 质量由Q因子评估。 在设备中使用激光二极管和波长转换器来实现光信号的波长相干和放大。 此外，激光二极管和光开关一起使用以获得可用于对光信号进行采样的光脉冲。 因此，在进入光电转换器之后，通过光信号的放大和光脉冲的耦合来重构光信号中的基带信号，以便检测Q因子并监视光信号的质量 。

公开(公告)号：US20080298807A1

公开(公告)日：2008-12-04

申请号：US11756514

申请日：2007-05-31

申请人： Chun-Liang Yang ,  Dar-Zu Hsu

发明人： Chun-Liang Yang ,  Dar-Zu Hsu

IPC分类号： H04J14/08

CPC分类号： H04Q11/0067 ,  G02F1/09 ,  H04Q2011/0079

摘要： An optical network device of a passive optical network is introduced. The optical network device includes a light source, a control unit, and a variable optical attenuator. The light source can generate an optical signal. The control unit can generate a magnetic signal based on a control signal capable of providing information relating to a distance between the optical network device and an optical line termination. The variable optical attenuator can adjust a polarization angle of the optical signal based on the magnetic signal.

摘要翻译： 介绍了无源光网络的光网络设备。 光网络装置包括光源，控制单元和可变光衰减器。 光源可以产生光信号。 控制单元可以基于能够提供与光网络设备和光线路终端之间的距离有关的信息的控制信号来生成磁信号。 可变光衰减器可以基于磁信号调节光信号的偏振角。

公开(公告)号：US20070109533A1

公开(公告)日：2007-05-17

申请号：US11323676

申请日：2005-12-30

申请人： San-Liang Lee ,  Chun-Liang Yang ,  Dar-Zu Hsu

发明人： San-Liang Lee ,  Chun-Liang Yang ,  Dar-Zu Hsu

IPC分类号： G01N21/00

CPC分类号： H04L1/20

摘要： A non-sampling-based Q-factor measuring apparatus and method use a power conversion module to transform the power variation of inputted optical signals in time domain into the variation in other domains, such as optical wavelength, optical polarization and different output ports of optical elements. Taking optical wavelength as an example, different levels of power variation respond different outputs of wavelength variation through the use of a power-to-wavelength conversion module. An optical filter then separates the inputted optical signals with different wavelengths. The power average of a wavelength for its corresponding optical signals is further calculated by a photo detector. Thereby, the information of the power variation for the inputted optical signals at levels 1 and 0 can be obtained, and the Q-factor for the inputted optical signals is easily measured.

摘要翻译： 基于非采样的Q因子测量装置和方法使用功率转换模块来将时域中输入的光信号的功率变化变换成其他领域的变化，例如光学波长，光学偏振和光学不同的输出端口 元素。 以光波长为例，不同级别的功率变化通过使用功率到波长转换模块来响应波长变化的不同输出。 然后，滤光器将输入的不同波长的光信号分离。 通过光电检测器进一步计算其相应光信号的波长的功率平均值。 因此，可以获得在等级1和0的输入光信号的功率变化的信息，并且容易地测量输入的光信号的Q因子。

公开(公告)号：US06614950B2

公开(公告)日：2003-09-02

申请号：US09848899

申请日：2001-05-04

申请人： Jen-Fa Huang ,  Yu-Lung Lo ,  Dar-Zu Hsu ,  Chang-Yuan Hsieh

发明人： Jen-Fa Huang ,  Yu-Lung Lo ,  Dar-Zu Hsu ,  Chang-Yuan Hsieh

IPC分类号： G02B626

CPC分类号： H04J14/005 ,  G02B6/2932 ,  G02B6/29322 ,  G02B6/4215 ,  H04B10/671 ,  H04B10/69

摘要： An optical spectral coding scheme for fiber-optic code-division multiple-access (FO-CDMA) networks. The spectral coding is based on the pseudo-orthogonality of FO-CDMA codes properly written in the fiber Bragg grating (FBG) devices. For an incoming broadband optical signal, the designed Bragg wavelengths of the FBG will be reflected and spectrally coded with the written FO-CDMA address codes. Maximal-length sequence codes (M-sequence codes) are chosen as the signature or address codes to exemplify the coding and correlation processes in the FO-CDMA system. By assigning the N cyclic shifts of an M-sequence code vector to N users, the invention achieves an FO-CDMA network that can support N simultaneous users. The FO-CDMA encoding/decoding devices consist of a series of FBGs. To overcome the impact of multiple-access interference (MAI) on the performance of the FO-CDMA system, the FBG decoder is configured on the basis of orthogonal correlation functions of the nearly orthogonal M-sequence codes.

公开(公告)号：US08270837B2

公开(公告)日：2012-09-18

申请号：US11563790

申请日：2006-11-28

申请人： Chien-Hung Yeh ,  Dar-Zu Hsu ,  Sien Chi

发明人： Chien-Hung Yeh ,  Dar-Zu Hsu ,  Sien Chi

IPC分类号： H04J14/08 ,  H04B10/00

CPC分类号： H04J14/0221 ,  H04B10/27 ,  H04B10/272 ,  H04J14/0226 ,  H04J14/0232 ,  H04J14/0247 ,  H04J14/0252 ,  H04J14/0282

摘要： A device capable of equalizing optical powers of optical signals in a passive optical network, the device comprising a first optical coupler for receiving optical signals having different optical power levels, an optical circulator capable of directing the optical signals from the first optical circulator, a laser diode capable of generating equalized optical signals having a predetermined range of optical power levels in response to the optical signals directed from the optical circulator, and a second optical coupler for receiving the equalized optical signals.

摘要翻译： 一种能够均衡无源光网络中光信号的光功率的装置，该装置包括用于接收具有不同光功率电平的光信号的第一光耦合器，能够引导来自第一光循环器的光信号的光循环器，激光器 二极管能够响应于从光循环器引导的光信号而产生具有预定范围的光功率电平的均衡光信号;以及第二光耦合器，用于接收均衡的光信号。