-
公开(公告)号：US20190190639A1
公开(公告)日：2019-06-20
申请号：US15842619
申请日：2017-12-14
申请人： Attochron, LLC
CPC分类号： H04J14/02 , H04B10/11 , H04B10/25 , H04B10/503
摘要： This invention relates to increasing the digital data rate of both free space and fiber optic communication systems by passing the laser beam from an ultra-short pulsed laser (USPL) source through an integrated photonic circuit that slices the relatively broadband spectral emission from the USPL into a multiplicity of narrower contiguous spectral bands. Each of these contiguous bands is individually modulated with data to form a multiplicity of communication channels that are then recombined back into a single broadband pulse stream prior to transmission to a remote receiver unit. Upon receipt at the optical receiver unit, the individual broadband pulses in the received pulse stream are sliced once again by another integrated photonic circuit back into a multiplicity of contiguous spectral channels that are directed to a multiplicity of high speed photodetectors, one detector per channel, resulting in a wavelength division multiplexing-per-pulse (WDM-per-pulse) communication system.
-
公开(公告)号：US20210242944A1
公开(公告)日：2021-08-05
申请号：US16269106
申请日：2019-02-06
申请人： Attochron, LLC
IPC分类号： H04B10/50 , H04B10/2575 , H04B10/516 , H04B10/80 , H04B10/508
摘要： Free-space optical (FSO) wireless transmission, including optical communications, remote-sensing, power beaming, etc., can be enhanced by replacing conventional laser sources that operate in the infrared portion of the optical spectrum with ultra-short pulsed laser (USPL) sources having peak pulse powers of one kWatt or greater and pulse lengths of less than one picosecond. Specifically, it has been observed that under these conditions the attenuation of an USPL beam having the same average optical power as a conventional laser in a lossy medium, such as the atmosphere, is substantially less than the attenuation of a conventional laser beam having a lower peak pulse power and/or a longer pulse width. The superior system performance when using an USPL can be translated into an increased distance between a laser source in a transmitter and a photodetector in receiver and/or a higher reliability of system operation in inclement weather conditions.
-
公开(公告)号：US11621787B2
公开(公告)日：2023-04-04
申请号：US17682009
申请日：2022-02-28
申请人： Attochron, LLC
摘要： This invention pertains to the field of free-space optical (FSO) communications, and specifically to the realization of functional FSO optical transceiver terminals located at remote electrically unpowered locations within a communications network. A remote unpowered FSO terminal located at a far-end location receives necessary optical power from a powered base station location (near-end) required for all optical amplification functions necessary for NRZ or RZ format signals within the spectral range of 900 nm to 1480 nm as well as an Ultra Short Pulsed Laser (USPL) centered at 1560 nm at the far-end location. A transmitting node identified as the near-end transmits an optical signal identified as a pump signal to a remote location classified as the far-end node over a free space medium, such as the atmosphere, where the far-end node location does not have available electrical power for operation of electro-optic components required for transmission and retransmission functions.
-
公开(公告)号：US20180269991A1
公开(公告)日：2018-09-20
申请号：US15923900
申请日：2018-03-16
申请人： Attochron, LLC
CPC分类号： H04B10/807 , H04B10/11 , H04B10/118 , H04B10/40 , H04B10/503
摘要： This invention pertains to the field of free-space optical (FSO) communications, and specifically to the realization of functional FSO optical transceiver terminals located at remote electrically unpowered locations within a communications network. A remote unpowered FSO terminal located at a far-end location receives necessary optical power from a powered base station location (near-end) required for all optical amplification functions necessary for NRZ or RZ format signals within the spectral range of 900 nm to 1480 nm as well as an Ultra Short Pulsed Laser (USPL) centered at 1560 nm at the far-end location. A transmitting node identified as the near-end transmits an optical signal identified as a pump signal to a remote location classified as the far-end node over a free space medium, such as the atmosphere, where the far-end node location does not have available electrical power for operation of electro-optic components required for transmission and retransmission functions.
-
公开(公告)号：US20220416909A1
公开(公告)日：2022-12-29
申请号：US17682009
申请日：2022-02-28
申请人： Attochron, LLC
IPC分类号： H04B10/80 , H04B10/11 , H04B10/118
摘要： This invention pertains to the field of free-space optical (FSO) communications, and specifically to the realization of functional FSO optical transceiver terminals located at remote electrically unpowered locations within a communications network. A remote unpowered FSO terminal located at a far-end location receives necessary optical power from a powered base station location (near-end) required for all optical amplification functions necessary for NRZ or RZ format signals within the spectral range of 900 nm to 1480 nm as well as an Ultra Short Pulsed Laser (USPL) centered at 1560 nm at the far-end location. A transmitting node identified as the near-end transmits an optical signal identified as a pump signal to a remote location classified as the far-end node over a free space medium, such as the atmosphere, where the far-end node location does not have available electrical power for operation of electro-optic components required for transmission and retransmission functions.
-
公开(公告)号：US11265088B2
公开(公告)日：2022-03-01
申请号：US15923900
申请日：2018-03-16
申请人： Attochron, LLC
摘要： This invention pertains to the field of free-space optical (FSO) communications, and specifically to the realization of functional FSO optical transceiver terminals located at remote electrically unpowered locations within a communications network. A remote unpowered FSO terminal located at a far-end location receives necessary optical power from a powered base station location (near-end) required for all optical amplification functions necessary for NRZ or RZ format signals within the spectral range of 900 nm to 1480 nm as well as an Ultra Short Pulsed Laser (USPL) centered at 1560 nm at the far-end location. A transmitting node identified as the near-end transmits an optical signal identified as a pump signal to a remote location classified as the far-end node over a free space medium, such as the atmosphere, where the far-end node location does not have available electrical power for operation of electro-optic components required for transmission and retransmission functions.
-
-
-
-
-
搜索结果
6 条记录 (耗时 0.01 秒)