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1. 发明授权

US11632178B2 Fiber communication systems and methods 有权
公开(公告)号：US11632178B2
公开(公告)日：2023-04-18
申请号：US17330203
申请日：2021-05-25
申请人： CABLE TELEVISION LABORATORIES, INC
发明人： Zhensheng Jia , Luis Alberto Campos , Curtis Dean Knittle
IPC分类号： H04B10/00 , H04B10/50 , H04B10/64 , H04B10/532 , H04B10/63 , H04J14/04 , H04J14/06
摘要： An injection locked transmitter for an optical communication network includes a master seed laser source input substantially confined to a single longitudinal mode, an input data stream, and a laser injected modulator including at least one slave laser having a resonator frequency that is injection locked to a frequency of the single longitudinal mode of the master seed laser source. The laser injected modulator is configured to receive the master seed laser source input and the input data stream, and output a laser modulated data stream.

2. 发明授权

US11621795B2 Polarization-diversity optical power supply 有权
公开(公告)号：US11621795B2
公开(公告)日：2023-04-04
申请号：US16888890
申请日：2020-06-01
申请人： Nubis Communications, Inc.
发明人： Peter Johannes Winzer
IPC分类号： H04J14/06 , H04B10/564 , H04B10/532
摘要： Provided is an optical communication system comprising a polarization-diversity optical power supply capable of supplying light over a non-polarization-maintaining optical fiber to a polarization-sensitive modulation device. In an example embodiment, the polarization-diversity optical power supply operates to accommodate random polarization fluctuations within the non-polarization-maintaining optical fiber and enables an equal-power split at a passive polarization splitter preceding the polarization-sensitive modulation device.

3. 发明授权

US11581950B2 Out-of-band communication channel for sub-carrier-based optical communication systems 有权
公开(公告)号：US11581950B2
公开(公告)日：2023-02-14
申请号：US17527146
申请日：2021-11-15
申请人： Infinera Corporation
发明人： Amir Jafari , Steven J. Hand , Mohamed Osman
IPC分类号： H04B10/00 , H04B10/61 , H04B10/40 , H04J14/02 , H04B10/54 , H04B10/548 , H04B10/50 , G02B6/293 , H04B10/532 , H01S3/067
摘要： Techniques are described for implementing an out-of-band communication channel used to exchange control channel information in sub-carrier-based optical communication systems. In an example implementation, an optical communication system includes a primary transceiver, a component, and secondary transceivers. The primary transceiver is operable to supply first optical subcarriers to an optical communication path, the first optical subcarriers being amplitude modulated at a first frequency to carry first control information and amplitude modulated at a second frequency to carry second control information. The component is operable to be coupled to the optical communication path and includes circuitry operable to detect the first control information. The secondary transceivers are coupled to a terminal end of the optical communication path. At least one of the secondary transceivers is operable to detect the second control information and block the first control information.

4. 发明申请

US20220385359A1 SYSTEM AND METHODS FOR COHERENT OPTICS BASED DAISY-CHAINING 有权
公开(公告)号：US20220385359A1
公开(公告)日：2022-12-01
申请号：US17883290
申请日：2022-08-08
申请人： Cable Television Laboratories, Inc.
发明人： Luis Alberto Campos , Zhensheng Jia , Jing Wang
IPC分类号： H04B10/079 , H04B10/564 , H04B10/532
摘要： An optical access network includes an optical hub having at least one processor, and a plurality of optical fiber strands. Each optical fiber strand has a first strand end connected to the optical hub. The network further includes a plurality of nodes connected to at least one segment of a first fiber strand of the plurality of optical fiber strands. Each node is sequentially disposed at respective locations along the first fiber strand at different differences from the optical hub, respectively. The network further includes a plurality of end-points. Each end-point includes a receiver. Each respective receiver (i) has a different optical signal-to-noise ratio (OSNR) from the other receivers, (ii) is operably coupled with at least one node of the plurality of nodes, and (iii) is configured to receive the same optical wavelength signal from the first fiber strand as received by the other receivers.

5. 发明授权

US11506916B2 Dual polarization optical pumping 有权
公开(公告)号：US11506916B2
公开(公告)日：2022-11-22
申请号：US17227085
申请日：2021-04-09
申请人： FUJITSU LIMITED
发明人： Youichi Akasaka
IPC分类号： G02F1/01 , H04B10/25 , H04B10/66 , H04B10/532
摘要： According to an aspect of an embodiment, operations may include receiving a light wave and generating a pumping wave by performing polarization modulation on the light wave based on a bit stream. The pumping wave may include a first polarization component having a first polarization and a second polarization component having a second polarization and having a same wavelength as the first polarization component. The operations may also include emitting the pumping wave in an optical medium such that the pumping wave amplifies an optical signal propagating within the optical medium.

6. 发明授权

US11496220B2 Wireless optical transceiver based on polarization pulse position and differential phase shift modulation and method thereof 有权
公开(公告)号：US11496220B2
公开(公告)日：2022-11-08
申请号：US16992071
申请日：2020-08-12
申请人： INDUSTRY-ACADEMIC COOPERATION FOUNDATION, YONSEI UNIVERSITY
发明人： Sang-Kook Han , Won-Ho Shin
IPC分类号： H04B10/11 , H04B10/516 , G02B27/28 , H01S3/067 , H01S3/16 , H04B10/66 , H04B10/524 , H04B10/532 , H04B10/556
摘要： A wireless optical transceiver, comprising: a light splitter for splitting light emitted from a light source into two lights; a data converter for dividing input data into a plurality of divided data in a symbol unit of a predetermined number of bits, and for converting values of a phase bit and a duty bit at a predetermined position in each of the divided data into a phase control signal and a blocking control signal; a modulator for polarization phase modulating two lights split according to the phase control signal, and for conveying or blocking two modulated polarized lights in response to the blocking control signal to modulate a pulse position; a polarized light combiner for generating a transmission optical signal by combining two polarized lights with a modulated polarization phase and a modulated pulse position; and a light amplifier for amplifying the transmission optical signal and transmitting it through a standby channel.

7. 发明授权

US11469826B2 System and methods for cable fiber node splitting using coherent optics 有权
公开(公告)号：US11469826B2
公开(公告)日：2022-10-11
申请号：US17158699
申请日：2021-01-26
申请人： CABLE TELEVISION LABORATORIES, INC.
发明人： Luis Alberto Campos , Zhensheng Jia
IPC分类号： H04B10/25 , H04B10/532 , H04J14/06 , H04B10/50 , H04B10/61 , H04B10/2575
摘要： A coherent optical transmitter is in operable communication with an optical fiber an includes a plurality of analog-to-digital converters (ADCs) configured to (i) receive a plurality of radio frequency analog input signals, respectively, and (ii) convert the received plurality of RF analog input signals into a plurality of respective digital data streams. The transmitter further includes a source laser configured to output at least two orthogonal polarization component signals, and at least two polarization modulators configured to modulate (i) an in-phase portion output from a first ADC, (ii) an in-quadrature portion output from a second ADC, and (iii) one polarization component signal of the at least two orthogonal polarization component signals. The transmitter further includes a polarization beam combiner configured to (i) multiplex the respective outputs of the at least two polarization modulators, and (ii) transmit the multiplexed output from the polarization beam combiner to the optical fiber.

8. 发明申请

US20220222972A1 Conformance Testing Method and Apparatus, and Storage Medium 有权
公开(公告)号：US20220222972A1
公开(公告)日：2022-07-14
申请号：US17709036
申请日：2022-03-30
申请人： Huawei Technologies Co., Ltd.
发明人： Jianyu Zheng , Shengping Li , Ting Yang
IPC分类号： G06V40/18 , H04B10/532 , H04B10/54 , G06V10/75 , G06V40/19
摘要： A conformance testing method including: obtaining a testing symbol pattern in an optical signal; performing equalization compensation on the testing symbol pattern; generating a testing eye pattern; calculating a value of a first parameter based on the testing eye pattern and a noise enhancement coefficient, where the first parameter is used to determine a transmitter dispersion eye pattern closure degree of the optical transmitter; and when the value of the first parameter is less than or equal to a preset threshold, determining that conformance testing on the optical signal succeeds.

9. 发明授权

US11368227B2 Reference optical signal generator 有权
公开(公告)号：US11368227B2
公开(公告)日：2022-06-21
申请号：US17111233
申请日：2020-12-03
申请人： MACOM Technology Solutions Holdings, Inc.
发明人： Richard Aque , Mitra Tayareh
IPC分类号： H04B10/532 , G02B5/30 , H04B10/50
摘要： An optic reference signal generator comprising a housing forming an enclosed space with one or more air flow openings. Within the housing is an optic signal generator driver configured to generate an optic signal generator drive signal. An optic signal generator generates an optic signal responsive to the optic signal generator drive signal. A polarity control unit adjusts polarization of the optic signal to create a polarization adjusted optic signal and a modulator bias generator and controller generates a modulation signal. A pattern signal input receives a pattern signal and a modulator receives the polarization adjusted optic signal, the pattern signal, and the modulation signal to generate a modulated output signal.

10. 发明申请

US20220190917A1 SYSTEM AND METHOD FOR POWERING RE-GENERATION AND RE-TRANSMISSION OF MILLIMETER WAVES FOR BUILDING PENETRATION 有权
公开(公告)号：US20220190917A1
公开(公告)日：2022-06-16
申请号：US17686625
申请日：2022-03-04
申请人： NxGen Partners IP, LLC
发明人： Solyman ASHRAFI
IPC分类号： H04B10/2575 , H04B10/2581 , H04B10/50 , H04B10/516 , H04B10/532 , H04B10/54 , H04J14/00 , H04L9/08 , H04L9/30 , H04L25/03 , H04L27/34 , H04L27/36 , H04L9/40 , H04B10/11
摘要： A system for providing a residential IP network includes a plurality of transceiver circuitries, each associated with a building, for transmitting signals to/from the associated building. An optical network unit transmits and receives signals at a first frequency with an optical network. A remote unit integrated with the optical network unit converts the received signals at the first frequency into a first format that overcome losses caused by penetrating into the interior of the building over a wireless communications link and transmits the signals in the first format using beam forming and beam steering to provide the wireless signals to at least one of the plurality of transceiver circuitries. Each of the plurality of transceiver circuitries further includes first circuitry, located on an exterior of the building, for transmitting and receiving the signals in the first format. A first antenna associated with the first circuitry for transmits the signals in the first format into the interior of the building via a wireless communications link and receives signals from the interior of the building in the first format via the wireless communications link. Second circuitry, located on the interior of the building and communicatively linked with the first circuitry via the wireless communications link, receives and transmits the converted received signals in the first format that counteracts the losses caused by penetrating into the interior of the building from/to the first circuitry. A second antenna associated with the second circuitry transmits the signals in the first format to the exterior of the building via the wireless communications link and receives signals from the exterior of the building in the first format via the wireless communications link.

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