-
公开(公告)号：US5815308A
公开(公告)日：1998-09-29
申请号：US650536
申请日：1996-05-20
Applicant: Hyung B. Kim , Farideh Khaleghi , Jinghui Li , Mohsen Kavehrad
Inventor： Hyung B. Kim , Farideh Khaleghi , Jinghui Li , Mohsen Kavehrad
CPC classification number: H04B10/2971 , H01S3/10023 , H04B10/2912 , H01S3/06787 , H01S3/1003 , H01S3/1608
Abstract: Bidirectional WDM transmission at 2.5 Gb/s using a bidirectional erbium-doped fiber amplifier (EDFA) is demonstrated over a distance of 300 km. A symmetrical EDFA configuration with a frequency tunable reflection attenuator is used as a bidirectional amplifier. Experimental results show that the allowable gain of the EDFA can be increased significantly while the associated bit error rate BER penalty remains negligible.
Abstract translation: 使用双向掺铒光纤放大器（EDFA），2.5 Gb / s的双向WDM传输在300公里的距离内展现。 具有频率可调谐反射衰减器的对称EDFA配置被用作双向放大器。 实验结果表明，EDFA的容许增益可以显着提高，相关的误码率BER值仍然可以忽略不计。
-
公开(公告)号：US20210318549A1
公开(公告)日：2021-10-14
申请号：US16894062
申请日：2020-06-05
Applicant: Qingming Zhang , Jinghui Li , Shouli Tang , Xiaodong Huang , Wen Lu , Yaozhong Lin
Inventor： Qingming Zhang , Jinghui Li , Shouli Tang , Xiaodong Huang , Wen Lu , Yaozhong Lin
Abstract: Embodiment of present invention provide a micro-optics module. The module includes a glass body of pentagon shape having five side surfaces including an upper side surface, a left side and a right side surface next to the upper side surface, a lower side surface next to the left side surface, and a 5th side surface next to and between the lower side surface and the right side surface. The glass body is adapted to, upon incident of a first optical signal at the left side surface, cause the first optical signal to propagate toward and exit the glass body at the right side surface and, upon incident of a second optical signal at the right side surface, cause the second optical signal to reflect back at the left side surface; reflect back at the 5th side surface; and finally exit the glass body at the upper side surface.
-
公开(公告)号：US10823926B2
公开(公告)日：2020-11-03
申请号：US16656443
申请日：2019-10-17
Applicant: Jinghui Li , Yuan Liu , Haiquan Zhang , Xiaodong Huang
Inventor： Jinghui Li , Yuan Liu , Haiquan Zhang , Xiaodong Huang
Abstract: Embodiment of present invention provide an optical interconnect apparatus. The apparatus includes an optical signal path; a first set of fibers attached to a first end of the optical signal path via a first wavelength-division-multiplexing (WDM) filter; and a second set of fibers attached to a second end of the optical signal path via a second WDM filter, wherein at least the first set of fibers is a ribbon fiber. Embodiment of present invention further provide an interconnected optical system that includes a first optical transport terminal having a first set of optical signal ports and a second optical transport terminal having a second set of optical signal ports, with the two sets of optical signal ports being interconnected by the optical interconnect apparatus.
-
公开(公告)号：US20200327656A1
公开(公告)日：2020-10-15
申请号：US16520791
申请日：2019-07-24
Applicant: Jinghui Li , Honggan Zhu , Yaxing Yao
Inventor： Jinghui Li , Honggan Zhu , Yaxing Yao
Abstract: Embodiments of present invention provide a method for checking integrity of a device selection process. The method includes placing multiple devices in a device tray that has multiple cells arranged in a matrix of M-rows and N-columns; separating the multiple devices into a first group and a second group; causing a machine to memorize locations of at least the first group; removing the second group from the device tray; after the removing, causing the machine to capture an image of devices remaining in the device tray and identify locations of the remaining devices based upon the image; comparing locations so identified with locations of the first group of devices memorized by the machine; and taking a corrective action when a discrepancy is found between the locations identified and locations memorized. An apparatus for performing the above method is also provided.
-
公开(公告)号：US20170219773A9
公开(公告)日：2017-08-03
申请号：US14120689
申请日：2014-06-17
Applicant: Tongqing Wang , Dobby Lam , Jinghui Li
Inventor： Tongqing Wang , Dobby Lam , Jinghui Li
CPC classification number: G02B6/268 , G02B6/00 , G02B6/02076 , G02B6/29317 , G02B6/29392 , G02B6/356 , H04B10/07951 , H04B10/25133 , H04B10/2519 , H04L45/22 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0022 , H04Q2011/0081 , H04Q2011/0083
Abstract: Embodiments of present invention provide a digital dispersion compensation module. The digital dispersion compensation module includes a multi-port optical circulator; and a plurality of dispersion compensation units connected to the multi-port optical circulator, wherein at least one of the plurality of dispersion compensation units includes a fiber-bragg grating (FBG) having a first port and a second port; and an optical switch being capable of selectively connecting to one of the first port and the second port of the FBG, wherein the at least one of the plurality of dispersion compensation units is adapted to provide a positive dispersion to an optical signal, from the multi-port optical circulator, when the optical switch connects to the first port of the FBG and is adapted to provide a negative dispersion to the optical signal when the optical switch connects to the second port of the FBG.
-
Patent Agency Ranking
公开(公告)号：US09709747B2
公开(公告)日：2017-07-18
申请号：US15368489
申请日：2016-12-02
Applicant: Tongqing Wang , Dobby Lam , Jinghui Li
Inventor： Tongqing Wang , Dobby Lam , Jinghui Li
IPC: G02B6/26 , G02B6/42 , G02B6/293 , G02B6/35 , G02B6/02 , H04B10/079 , H04B10/2519 , H04L12/707 , H04Q11/00 , H04B10/2513
CPC classification number: G02B6/268 , G02B6/00 , G02B6/02076 , G02B6/29317 , G02B6/29392 , G02B6/356 , H04B10/07951 , H04B10/25133 , H04B10/2519 , H04L45/22 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0022 , H04Q2011/0081 , H04Q2011/0083
Abstract: Embodiments of present invention provide a digital dispersion compensation module. The digital dispersion compensation module includes a multi-port optical circulator; and a plurality of dispersion compensation units connected to the multi-port optical circulator, wherein at least one of the plurality of dispersion compensation units includes a fiber-bragg grating (FBG) having a first port and a second port; and an optical switch being capable of selectively connecting to one of the first port and the second port of the FBG, wherein the at least one of the plurality of dispersion compensation units is adapted to provide a positive dispersion to an optical signal, from the multi-port optical circulator, when the optical switch connects to the first port of the FBG and is adapted to provide a negative dispersion to the optical signal when the optical switch connects to the second port of the FBG.
-
公开(公告)号：US20150365317A1
公开(公告)日：2015-12-17
申请号：US14120698
申请日：2014-06-17
Applicant: Tongqing Wang , Dobby Lam , Jinghui Li
Inventor： Tongqing Wang , Dobby Lam , Jinghui Li
IPC: H04L12/707 , H04B10/079 , H04B10/2519 , H04Q11/00
CPC classification number: G02B6/268 , G02B6/00 , G02B6/02076 , G02B6/29317 , G02B6/29392 , G02B6/356 , H04B10/07951 , H04B10/25133 , H04B10/2519 , H04L45/22 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0022 , H04Q2011/0081 , H04Q2011/0083
Abstract: Embodiments of present invention provide an optical signal transportation system. The system includes a first and a second optical line protection (OLP) node; a working signal transmission medium and a protection signal transmission medium between the first and second OLP nodes providing transportation paths for an optical signal from the first OLP node to the second OLP node; and at least one digital dispersion compensation module (DDCM) connected to at least one of the working and protection signal transmission media inside the second OLP node, wherein the DDCM includes a plurality of dispersion compensation units (DCUs) with each DCU being capable of providing either a positive or a negative dispersion selected by an optical switch to the optical signal, and wherein the DDCM is capable of providing the optical signal a total dispersion determined by the optical switch of each of the plurality of DCUs.
Abstract translation: 本发明的实施例提供一种光信号传输系统。 该系统包括第一和第二光线路保护（OLP）节点; 第一和第二OLP节点之间的工作信号传输介质和保护信号传输介质，其提供用于从第一OLP节点到第二OLP节点的光信号的传输路径; 以及连接到第二OLP节点内的工作和保护信号传输介质中的至少一个的至少一个数字色散补偿模块（DDCM），其中DDCM包括多个色散补偿单元（DCU），每个DCU能够提供 通过光开关选择的光信号的正或负色散，并且其中DDCM能够向光信号提供由多个DCU中的每一个的光开关确定的总色散。
-
公开(公告)号：US20150362677A1
公开(公告)日：2015-12-17
申请号：US14120689
申请日：2014-06-17
Applicant: Tongqing Wang , Dobby Lam , Jinghui Li
Inventor： Tongqing Wang , Dobby Lam , Jinghui Li
CPC classification number: G02B6/268 , G02B6/00 , G02B6/02076 , G02B6/29317 , G02B6/29392 , G02B6/356 , H04B10/07951 , H04B10/25133 , H04B10/2519 , H04L45/22 , H04Q11/0005 , H04Q11/0066 , H04Q2011/0022 , H04Q2011/0081 , H04Q2011/0083
Abstract: Embodiments of present invention provide a digital dispersion compensation module. The digital dispersion compensation module includes a multi-port optical circulator; and a plurality of dispersion compensation units connected to the multi-port optical circulator, wherein at least one of the plurality of dispersion compensation units includes a fiber-bragg grating (FBG) having a first port and a second port; and an optical switch being capable of selectively connecting to one of the first port and the second port of the FBG, wherein the at least one of the plurality of dispersion compensation units is adapted to provide a positive dispersion to an optical signal, from the multi-port optical circulator, when the optical switch connects to the first port of the FBG and is adapted to provide a negative dispersion to the optical signal when the optical switch connects to the second port of the FBG.
Abstract translation: 本发明的实施例提供一种数字色散补偿模块。 数字色散补偿模块包括多端口光循环器; 以及连接到所述多端口光循环器的多个色散补偿单元，其中所述多个色散补偿单元中的至少一个包括具有第一端口和第二端口的光纤布拉格光栅（FBG） 以及光开关，其能够选择性地连接到所述FBG的所述第一端口和所述第二端口中的一个，其中所述多个色散补偿单元中的所述至少一个色调补偿单元适于从所述多个色散补偿单元向光信号提供正色散 端口光环行器，当光开关连接到FBG的第一端口时，并且适于在光开关连接到FBG的第二端口时向光信号提供负色散。
-
公开(公告)号：US08055137B2
公开(公告)日：2011-11-08
申请号：US12079458
申请日：2008-03-26
Applicant: Tongqing Wang , Jinghui Li
Inventor： Tongqing Wang , Jinghui Li
IPC: H04B10/04
CPC classification number: H04B10/5051 , H04B10/505 , H04B10/5055 , H04B10/541
Abstract: Embodiments of the present invention provide a method and apparatus for producing a phase coded non-return-to-zero (PC-NRZ) optical signal. The method includes providing an input optical signal; providing first and second drive signals, the first drive signal having a first data pattern of first and second signal levels, the second drive signal having a second data pattern, the second data pattern having third and fourth signal levels that toggle at least when the first drive signal changes from the first signal level to the second signal level; and modulating amplitude of the input optical signal with the first drive signal and modulating phase of the input optical signal with the second drive signal to produce the PC-NRZ optical signal. A PC-NRZ optical transmitter and an optical transmission system applying the PC-NRZ optical transmitter are also provided.
Abstract translation: 本发明的实施例提供了一种用于产生相位编码的非归零（PC-NRZ）光信号的方法和装置。 该方法包括提供输入光信号; 提供第一和第二驱动信号，所述第一驱动信号具有第一和第二信号电平的第一数据模式，所述第二驱动信号具有第二数据模式，所述第二数据模式具有第三和第四信号电平，所述第三和第四信号电平至少在第一和第二信号电平 驱动信号从第一信号电平变为第二信号电平; 并利用第一驱动信号调制输入光信号的幅度，并用第二驱动信号调制输入光信号的相位，以产生PC-NRZ光信号。 还提供PC-NRZ光发射机和应用PC-NRZ光发射机的光传输系统。
-
40.发明授权公开(公告)号：US07010230B2
公开(公告)日：2006-03-07
申请号：US10024303
申请日：2001-12-21
Applicant: Ku-Suen Lee , Jinghui Li , Tongqing Wang , Dennis Lam
Inventor： Ku-Suen Lee , Jinghui Li , Tongqing Wang , Dennis Lam
IPC: H04J14/08
CPC classification number: H04J14/08
Abstract: A novel integrated multiple-rate optical time division multiplexing (OTDM) module is disclosed. An integrated set of modulators generates optical RZ signal streams which are then time-delayed by a set of integrated optical delay switching and combining arrays and interleaved to produce an OTDM signal. The integrated optical delay switching and combining arrays are adapted to be controllably set to various delays to facilitate interleaving of many possible bit-rates. Such an approach alleviates stability problems offered by conventional fiber-based OTDM technology, increases flexibility, aids in reducing the size, complexity, and cost. Furthermore, the OTDM chip of the present invention offers fine tuning capabilities thereby allowing for slight adjustments in the interleaving of optical signal streams if needed. The present invention also provides for the integration of an optical pulse source chip and a multiple-rate OTDM chip onto a single substrate or platform using hybrid packaging technology.
Abstract translation: 公开了一种新颖的综合多速光时分复用（OTDM）模块。 一组集成的调制器产生光学RZ信号流，然后由一组集成的光学延迟切换和组合阵列进行时间延迟并交织以产生OTDM信号。 集成光延迟切换和组合阵列适于被可控地设置为各种延迟以促进许多可能的比特率的交织。 这种方法减轻了传统的基于光纤的OTDM技术提供的稳定性问题，增加了灵活性，有助于减小尺寸，复杂性和成本。 此外，本发明的OTDM芯片提供微调功能，从而允许在需要时对光信号流的交错进行轻微的调整。 本发明还提供了使用混合封装技术将光脉冲源芯片和多速率OTDM芯片集成到单个基板或平台上。
-
-
-
-
-
-
-
-
-
Search Results
53
records
(took 0.017 seconds)
