专利快速检索-快速检索全球专利，免费商用专利数据库-IPRDB

1. 发明申请

US20220342156A1 Wavelength Selective Switch 有权
公开(公告)号：US20220342156A1
公开(公告)日：2022-10-27
申请号：US17764387
申请日：2019-12-27
申请人： Accelink Technologies Co., Ltd.
发明人： Liu Yang , Rui Yang , Zhilin Yuan , Jinping Guo , Fan Wang , Yuhong Ma , Yingyi Xuan
IPC分类号： G02B6/35 , G02B6/34
摘要： A wavelength selective switch, including: an optical fiber array, an optical signal processing device and an output selection device. The optical fiber array includes multiple dual-core optical fibers arranged in parallel, one dual-core optical fiber being used for inputting two optical signals; the optical signal processing device is located at an output end of the optical fiber array and is used for splitting the two optical signals into sub-signals of different wavelengths and projecting the sub-signals of different wavelengths to different spectral band regions in the output selection device; and the output selection device is located at the rear end of the optical signal processing device, and is used for processing the sub-signals projected to the spectral band regions, so as to respectively perform output selection on the sub-signals split from two optical signals, thereby achieving a dual-switch function.

2. 发明申请

US20220337030A1 DRIVE CIRCUIT FOR DIRECT MODULATED LASER, AND DIRECT MODULATED OPTICAL TRANSMITTER 有权
公开(公告)号：US20220337030A1
公开(公告)日：2022-10-20
申请号：US17753968
申请日：2019-12-13
申请人： ACCELINK TECHNOLOGIES CO., LTD.
发明人： Hongchun Xu , Xueyong Zhang , Bo Zhang , Jing Wang , Zhiqiang Chen , Sen Hu , Jie Zhou
IPC分类号： H01S5/042 , H04B10/50
摘要： A drive circuit for a direct modulated laser and a direct modulated optical transmitter. The drive circuit includes a service data drive unit, a voltage configuration unit, a monitoring data modulation unit, and a monitoring current generation unit. Output terminals of the voltage configuration unit and the monitoring data modulation unit are connected to a same input terminal of the monitoring current generation unit. An output terminal of the service data drive unit is connected to a current sink interface of the monitoring current generation unit, and is suitable for connecting a direct modulated laser. In the technical solution, a low-speed monitoring data signal is mixed into an average optical power signal of a high-speed service data light wave from the direct modulated laser, then is extracted from the received optical signal by a remote optical receiver, enabling the drive circuit to be remotely monitored.

3. 发明授权

US11290185B2 Remote optical fiber dispersion compensation device and method, remote access device, electronic device and non-transient computer-readable storage medium 有权
公开(公告)号：US11290185B2
公开(公告)日：2022-03-29
申请号：US17264523
申请日：2018-12-25
申请人： Accelink Technologies Co., Ltd
发明人： Li Xiao , Weiqing Zhang , Qinlian Bu , Chengpeng Fu , Zhi Chen , Lijie Qiao
IPC分类号： H04B10/2525
摘要： Provided by the embodiments of the present invention are a remote optical fiber dispersion compensation device and method, the dispersion compensation device comprising: a distance measurement module, used for measuring a remote distance to a remote access optical fiber; a channel monitoring module, used for monitoring the spectral power of a transmission service wavelength channel; and a remote optical fiber dispersion power equalization module, used for compensating the dispersion of a transmission service signal and adjusting the insertion loss of the wavelength channel according to the measured remote distance of the remote access optical fiber and the monitored spectral power of the transmission service wavelength channel. By employing the embodiments of the present invention, compensation amounts of different channels may be flexibly selected by means of a wavelength selection switch, dispersion may be compensated for remote optical fiber transmission and the insertion loss may be adjusted for different channels by presetting dispersion compensation optical fibers of different lengths, thus achieving compensation and equalization of dispersion and power difference introduced by remote optical fibers of different lengths.

4. 发明申请

US20210344163A1 Method, Device And System For Dynamically Controlling Gain Of Raman Optical Fiber Amplifier 有权
公开(公告)号：US20210344163A1
公开(公告)日：2021-11-04
申请号：US17273574
申请日：2018-12-26
申请人： ACCELINK TECHNOLOGIES CO., LTD
发明人： Cuihong ZHANG , Chengpeng FU , Jintao TAO , Hao ZHANG , Lijing CHENG
IPC分类号： H01S3/13 , H01S3/067 , H01S3/091 , H01S3/094 , H01S3/30 , H01S3/10
摘要： Disclosed are a method, device and system for dynamically controlling a gain of a Raman optical fiber amplifier. The method comprises: determining whether a target gain falls within a gain mask range; if the target gain falls within the gain mask range, directly locking a gain to the target gain; and if the target gain falls outside the gain mask range, locking the gain to a corresponding maximum gain in the gain mask range, and gradually increasing the locked gain according to a preset first step length until the target gain is reached or until at least one pump laser reaches a maximum output power. The invention enables an optical fiber amplifier to respond quickly to a change in an input optical signal, ensures gain stability, and ensures that no power overshoot or undershoot occurs in the non-switched optical channels in an optical path. Moreover, the invention minimizes an amount of time required to complete switching between gains.

5. 发明申请

US20210288744A1 DWDM REMOTE PUMPING SYSTEM CAPABLE OF IMPROVING OSNR 有权
公开(公告)号：US20210288744A1
公开(公告)日：2021-09-16
申请号：US17263283
申请日：2018-12-25
申请人： Accelink Technologies Co., Ltd
发明人： Chengpeng Fu , Jintao Tao , Jun Chen , Menghui Le , Chunping Yu
IPC分类号： H04J14/02
摘要： The present disclosure relates to optical communications, and in particular, to a DWDM remote pumping system for improving an OSNR. The system includes remote pumping gain unit, preamplifier, and gain flattening filter sequentially connected. Remote pumping gain unit and the preamplifier are cascaded one behind the other as a whole amplifier. Gain flattening filter is disposed at the preamplifier's output end. In the system, the remote gain unit and preamplifier which have large impact on the OSNR of the entire system are optimally designed as a whole amplifier. In remote gain unit, gain flattening filter originally disposed between two erbium-doped fiber segments is moved back to preamplifier's output end for significant improvement of gain and noise figures of the remote gain unit while ensuring gain flatness of the entire transmission system, thus effectively improving the entire system's OSNR, improving operation stability and reliability, effectively reducing bit error rate, and facilitating system maintenance.

6. 发明申请

US20200092027A1 METHOD AND APPARATUS FOR MATCHING FIBER CONNECTIONS FOR ROADM SERVICE 审中-公开
公开(公告)号：US20200092027A1
公开(公告)日：2020-03-19
申请号：US16226591
申请日：2018-12-19
申请人： ACCELINK TECHNOLOGIES CO., LTD.
发明人： Jiekui Yu , Ying Zhang , Zhaoxia Liu , Jian Xu
IPC分类号： H04J14/02
摘要： The present disclosure relates to a technical field of optical communication, and more particularly to a device and method for matching optical fiber connections for ROADM service side, wherein the device comprises a reference control optical channel transmitter, a downlink WSS, a plurality of emitting ports, a reference control optical channel receiver, an uplink WSS and a plurality of receiving ports; the reference control optical channel transmitter emitting a reference control optical channel signal, and the downlink WSS emitting the reference control optical channel through the respective emitting ports in a polling manner; the reference control optical channel receiver receiving the reference control optical channel signal, and the uplink WSS selectively receiving the reference control optical channel over the plurality of receiving ports in the polling manner; wherein the reference control optical channel operating within an operating wavelength range of WSSs in the ROADM but outside a wavelength range of a service optical channel. By using WSS to control polling of the reference control optical channel among service side ports of ROADM, the present disclosure realizes an auto-routing matching of an optical fiber connection between different service side ports of ROADM and improves configuration efficiency, and at the same time, also realize to monitor performance of the optical fiber connection between service side ports of ROADMs in different directions and be a standby physical channel for chassis cascade.

7. 发明授权

US10439354B2 Cascade control system of optical fiber amplifier 有权
公开(公告)号：US10439354B2
公开(公告)日：2019-10-08
申请号：US15529822
申请日：2014-12-26
申请人： Accelink Technologies Co., Ltd.
发明人： Peng Zhang , Chengpeng Fu , Chunping Yu , Jintao Tao , Cuihong Zhang
IPC分类号： H01S3/091 , G05B6/02 , G05B13/02 , H01S3/067 , H01S3/094 , H01S3/13 , H01S3/16 , H01S3/30
摘要： A cascade control system of an optical fiber amplifier includes a target setting parameter module, a primary controller, at least one controlled module and a secondary controller corresponding to the controlled module. The control system adopts two or more cascade control loops so that disturbance entering into the secondary loop can be overcome quickly, thereby the dynamic characteristics of the system may be improved. The primary controller aims to coarse adjustment and overall target control, and the secondary controller aims to fine adjustment and quick convergence of a short-term target, so that the control quality of the cascade control system may be further improved. The cascade control system may define the overall control target directly in the primary loop and avoid impact of aging characteristics of some special parameters on the application.

8. 发明申请

US20190260491A1 Optical Multiplexing And Demultiplexing Module Having Automatic Discovery Function 审中-公开
公开(公告)号：US20190260491A1
公开(公告)日：2019-08-22
申请号：US16329077
申请日：2016-12-19
申请人： Accelink Technologies Co., Ltd.
发明人： Lu Guo , Dong Pan , Qingyan Yue
IPC分类号： H04J14/02 , H04Q11/00
摘要： Disclosed are an optical multiplexing and demultiplexing module having an automatic discovery function, comprising a signal transmission portion and a signal reception portion. The signal transmission portion transmits information about the optical multiplexing and demultiplexing module by modulating transmission power of a laser. The signal reception portion samples and decodes the received optical power signal to acquire information about the other optical multiplexing and demultiplexing modules borne thereon. In configuring a wavelength division multiplexing transmission system, the device of the present disclosure may simplify the complexity of manual configuration, improve the accuracy of configuration, reduce the cost and failure rate in a solution in which an individual transceiver is used as an automatic discovery function, and adapt to different connection modes. Thereby at a receiving terminal, a signal can not only be received by a demultiplexing input terminal but also be received by various multiplexing input terminals.

9. 发明授权

US10048445B2 Multicast exchange optical switch 有权
公开(公告)号：US10048445B2
公开(公告)日：2018-08-14
申请号：US15523206
申请日：2014-12-18
申请人： Accelink Technologies Co., Ltd.
发明人： Qianggao Hu , Liping Sun , Bo Zhang , Leilei Hu , Liu Yang , Yuan Zhang , Fei Liang
IPC分类号： G02B6/35 , G02B6/32 , G02B6/293
摘要： A multicast exchange optical switch includes an input port device including M input ports, an output port device including N output ports, a diffractive beam splitter, an optical focusing component, and a 1×N array of reflective devices. The diffractive beam splitter diffracts each input signal beam from the input ports into at least N directions. The optical focusing component includes a first focusing lens and a second focusing lens. The first focusing lens focuses sub-beams from the respective input ports along the Y-axis direction having the same diffraction order. The second focusing lens focuses on the X-axis direction sub-beams from the same input port having different diffraction orders. The 1×N array of reflective devices is provided at the focal plane of the optical focusing component and each reflective device reflects a sub-beam from any one of the input ports to any one of the output ports.

10. 发明申请

US20170359121A1 METHOD AND DEVICE FOR MEASURING OPTICAL SIGNAL-TO-NOISE RATIO 审中-公开
公开(公告)号：US20170359121A1
公开(公告)日：2017-12-14
申请号：US15667794
申请日：2017-08-03
申请人： Accelink Technologies Co., Ltd.
发明人： Shuang Chen , Liping Sun , Qianggao Hu , Yan Chen , Hui Xie , Qingyan Yue , Fei Liang , Yin Zhang , Hehui Wu
IPC分类号： H04B10/079 , H04J14/02 , H04J14/06
CPC分类号： H04B10/07953 , H04B10/07955
摘要： Embodiments of the present invention relate to method and device for measuring optical signal-to-noise ratio (OSNR). A method for measuring an OSNR of a signal of interest may comprise: obtaining spectrum of the signal of interest, the spectrum including power spectrum density distribution of the signal of interest in a channel bandwidth B; obtaining spectrum of a comparative signal that has the same spectrum characteristics as but different OSNR than the signal of interest, the spectrum including power spectrum density distribution of the comparative signal in the channel bandwidth B; and calculating the OSNR of the signal of interest by using the spectrum of the signal of interest and the spectrum of a comparative signal.

你已经成功收藏专利！

检索式保存成功!

IPRDB

热门服务

关于我们

友情链接

联系方式