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公开(公告)号：US12095556B2
公开(公告)日：2024-09-17
申请号：US18095644
申请日：2023-01-11
申请人： Calix, Inc.
IPC分类号： H04L1/00 , H04B10/27 , H04B10/564
CPC分类号： H04L1/0044 , H04B10/27 , H04B10/564
摘要： Systems and techniques for forward error correction decode processing power reduction are described herein. A first codeword is identified in a network transmission. A conditional decoding window is generated that begins with the first codeword. The conditional decoding window is aligned with a frame of the network transmission. A report is generated that includes an indication of relevance of the conditional decoding window to a network device. The conditional decoding window and the report are transmitted to the network device. A conditional decoding window is received that includes a first codeword. The first codeword is decoded to determine a second codeword. A report is obtained that includes a codeword relevance bit for the second codeword. Upon a determination that the codeword relevance bit indicates that the second codeword is irrelevant, the second codeword is discarded without decoding the second codeword.
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公开(公告)号：US20240259106A1
公开(公告)日：2024-08-01
申请号：US18290856
申请日：2021-08-02
IPC分类号： H04B10/564 , H01S3/04 , H04B10/50
CPC分类号： H04B10/564 , H01S3/04 , H04B10/505
摘要： Communications network optical apparatus (100) comprising an optical module (120) and a controller (140). The optical module (120) comprises optical modulators (122), internal lasers (124) to generate internal optical signals, an input port (126) to receive an external optical signal from an external laser, optical routing devices (128) to route internal optical signals from internal lasers to optical modulators and to route an external optical signal from the input port to at least one of the optical modulators, and a temperature sensor (130) to sense a temperature of the internal lasers and to generate a temperature reporting signal. The controller (140) comprises processing circuitry (142) and memory (144) containing instructions which when executed by the processing circuitry cause the controller to perform operations including receiving the temperature reporting signal, determining that a thermal protection condition exists based on the temperature of the internal lasers, and in response to the determining, generating control signals configured
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公开(公告)号：US12040839B2
公开(公告)日：2024-07-16
申请号：US18059223
申请日：2022-11-28
IPC分类号： H04B10/00 , H04B10/50 , H04B10/564 , H04J14/00
CPC分类号： H04B10/564 , H04B10/5057
摘要： A two-dimensional scalable high-power optical phased array architecture with beam steering is provided. The present disclosure is related to integrated optical transmitters wherein an array of antenna elements together with laser sources can transmit high-power optical signals. The optical transmitters can also beamform and steer the signal toward the desired direction. The architecture facilitates a simplified control of the delay tuning elements by using a single control signal for the entire row and single control signal for the entire column.
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公开(公告)号：US20240223297A1
公开(公告)日：2024-07-04
申请号：US18570827
申请日：2021-06-23
IPC分类号： H04J14/02 , H04B10/564
CPC分类号： H04J14/0307 , H04B10/564
摘要： Crosstalk between adjacent channels is suppressed when monitoring output power. A multi-channel optical module for multiplexing and outputting a plurality of wavelength channels, which includes a plurality of light sources each having a different wavelength, a plurality of collimator lenses coupled to an output of each of the plurality of light sources, a beam splitter coupled to an output of each of the plurality of collimator lenses, a plurality of monitor PDs for monitoring optical power branched from the beam splitter, and a shielding plate installed between the plurality of collimator lenses.
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公开(公告)号：US20240204881A1
公开(公告)日：2024-06-20
申请号：US18081392
申请日：2022-12-14
发明人： Stanley CHEUNG , Geza KURCZVEIL , Yiwei PENG , Yuan YUAN , Raymond G. BEAUSOLEIL
IPC分类号： H04B10/564 , G02F1/313 , H04B10/079
CPC分类号： H04B10/564 , G02F1/3136 , H04B10/0791 , H04B10/07955
摘要： Systems, devices, and methods are provided for built-in redundancy in optical devices that output an optical signal, for example, to photonic integrated circuits. The device and systems disclosed herein include a plurality of optical sources coupled to a plurality of waveguides. Each adjacent pair of the plurality of waveguides are coupled to an optical switching devices that comprises an interferometer having a first branch comprising a phase-shift mechanism coupled to one waveguide of the pair of waveguides. A voltage bias can be applied to the phase-shift mechanisms to tune a respective phase difference and direct an optical signal from any of the plurality of optical sources to the output end of the optical device. According to various examples disclosed herein, the phase-shift mechanisms comprises metal oxide semiconductor (MOS) capacitors.
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公开(公告)号：US11994712B2
公开(公告)日：2024-05-28
申请号：US17166538
申请日：2021-02-03
申请人： CORNING INCORPORATED
发明人： John David Downie , Ming-Jun Li , Xiaojun Liang , Hui Su
IPC分类号： G02B6/02 , G02B6/028 , H04B10/25 , G02B6/036 , H04B10/564
CPC分类号： G02B6/02028 , G02B6/02395 , G02B6/0281 , H04B10/25 , G02B6/02242 , G02B6/03644 , H04B10/564
摘要： In some embodiments, a data center optical communications system includes: a transmitter comprising a light source, wherein the light source is configured to provide light; an optical fiber operably connected to said transmitter and configured to receive light from the light source, wherein the optical fiber has a length L of 50 km or greater; a receiver configured to receive light from the optical fiber, wherein the receiver includes a detector for detecting the light, wherein the system has a power consumption of 15 W or less.
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公开(公告)号：US20230396336A1
公开(公告)日：2023-12-07
申请号：US18453161
申请日：2023-08-21
IPC分类号： H04B10/40 , H04L41/14 , H04B10/572 , H04B10/564
CPC分类号： H04B10/40 , H04L41/145 , H04B10/572 , H04B10/564
摘要： An optical communication system including a hub optical transceiver, a power splitter, and a plurality of spoke transceivers. The hub optical transceiver is configured for receiving a spectrum of wavelengths. The power splitter is coupled to the hub optical transceiver, and operates as a passive device that is configured to replicate the spectrum of wavelengths and output a plurality of replicated spectrum of wavelengths, and each replicated spectrum of wavelengths has a corresponding power that is a fraction of a total power received from the hub optical transceiver. The plurality of spoke transceivers is coupled to the power splitter and each of the plurality of spoke transceivers is configured to receive a corresponding one of the plurality of replicated spectrum of wavelengths, wherein each spoke transceiver is tunable to select a band of wavelengths that set a bandwidth for the each spoke transceiver.
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公开(公告)号：US20230388040A1
公开(公告)日：2023-11-30
申请号：US18170799
申请日：2023-02-17
申请人： Fujitsu Limited
发明人： XIANG ZHANG , ATSUSHI KODAMA , Tatsuya TSUZUKI , Kyosuke SONE
IPC分类号： H04J14/02 , H04B10/564
CPC分类号： H04J14/0221 , H04B10/564
摘要： A transmission apparatus includes a signal power detector configured to detect signal power of a wavelength-multiplexed optical signal to be transmitted to a transmission line, a variable optical attenuator configured to attenuate the wavelength-multiplexed optical signal, and a processor configured to control an attenuation amount of the variable optical attenuator according to the signal power and whether a Raman amplifier in which pumping light is inputted to the transmission line exists.
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公开(公告)号：US20230353247A1
公开(公告)日：2023-11-02
申请号：US18025767
申请日：2020-09-16
申请人： LG ELECTRONICS INC.
发明人： Hojae LEE , Sangrim LEE , Kijun JEON , JaYeong KIM , Byungkyu AHN
IPC分类号： H04B10/50 , H04B10/548 , H04B10/564
CPC分类号： H04B10/504 , H04B10/548 , H04B10/564
摘要： The present specification provides a method, performed by an apparatus, for transmitting at least one beam in a wireless communication system, the method comprising transmitting the at least one beam to another apparatus and receiving information about a result of measuring the at least one beam from the other apparatus, wherein the at least one beam is a beam generated on the basis of a signal synthesized from a laser signal being incident on a meta surface from a power controller, the laser signal consists of a plurality of frequency components, the synthesized signal is a signal in which power amplification is applied to each of the plurality of frequency components, and the power amplification is applied on the basis of the intensity regarding each of the plurality of frequency components.
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10.发明公开公开(公告)号：US20230261751A1
公开(公告)日：2023-08-17
申请号：US18309178
申请日：2023-04-28
发明人： Shenghui Liao , Man Li , Yuanwu Wang
IPC分类号： H04B10/293 , H04B10/564
CPC分类号： H04B10/293 , H04B10/564
摘要： A power calculation method including obtaining a first optical signal and a second optical signal; detecting first optical power of each waveband in the first optical signal and second optical power of each waveband in the second optical signal; calculating, based on the first optical power, a first optical power variation that is of each waveband of the first optical signal and that is used after the first optical signal is transmitted from a transmitting end to a receiving end, and calculating, based on the second optical power, a second optical power variation that is of each waveband of the second optical signal and that is used after the second optical signal is transmitted from the transmitting end to the receiving end; and determining a first compensation value and a second compensation value based on the first optical power variation and the second optical power variation.
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