CN108923857B - Ultra-high-speed large-view-field receiving space laser communication receiving system - Google Patents
Ultra-high-speed large-view-field receiving space laser communication receiving system Download PDFInfo
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- CN108923857B CN108923857B CN201810768043.2A CN201810768043A CN108923857B CN 108923857 B CN108923857 B CN 108923857B CN 201810768043 A CN201810768043 A CN 201810768043A CN 108923857 B CN108923857 B CN 108923857B
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/25—Arrangements specific to fibre transmission
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/60—Receivers
Abstract
A receiving system of ultrahigh-speed large-visual-field receiving space laser communication belongs to the technical field of free laser communication and aims to solve the problems that an existing high-speed space laser communication system is small in receiving visual field and low in communication speed, a receiving antenna in the receiving system is connected with multiple groups of front-end photon lanterns through multi-core few-mode optical fibers, each group of front-end photon lanterns is connected with ports a of multiple optical circulators through single-mode optical fibers, ports b of the optical circulators are connected with ports a of lower -level optical circulators through single-mode optical fibers with reflection-type fiber Bragg gratings, ports c of -level optical circulators are connected with rear-end photon lanterns through single-mode optical fibers, rear-end photon lanterns are connected with avalanche photodetectors, and output ports of the avalanche photodetectors are connected with demodulators.
Description
Technical Field
The invention belongs to the technical field of free laser communication, and particularly relates to an ultra-high-speed large-view-field receiving space laser communication receiving system.
Background
Compared with the traditional wireless communication, the space optical communication technology has the advantages of narrow light beam, good directivity, capability of better solving the problems of electromagnetic wave interference and confidentiality among satellites, large information capacity, high speed, low power consumption, small antenna size, light weight and the like, and the satellite optical communication comprises the laser communication among deep space satellites, synchronous orbit satellites (GEO), middle orbit satellites (MEO), low orbit satellites (LEO) and between the satellites and ground stations, and has very broad application prospect.
The existing high-speed space laser communication system mostly adopts a single-mode fiber coupled photoelectric detector, but the single-mode fiber can only receive a single -mode optical signal, and the single-mode fiber has small receiving area (about 10 μm) and small receiving angle (dozens of μ rad), so that the requirement on a capturing and tracking system is high.
The Chinese patent publication No. CN106788773A, entitled " coherent receiving system and method based on photon lantern", as shown in FIG. 1, the system is that free space optical signals are received by a receiving antenna, coupled into the photon lantern, and the signals are converted into multi-path single-mode optical signals to be input into a coherent receiver.
Disclosure of Invention
The invention provides ultra-high-speed large-view-field receiving space laser communication receiving systems, which aim to solve the problems of small receiving view field and low communication speed of the existing high-speed space laser communication system.
In order to solve the technical problems, the technical scheme of the invention is as follows:
the ultra-high-speed large-visual-field receiving space laser communication receiving system is characterized by comprising a receiving antenna, a multi-core few-mode optical fiber, a plurality of groups of front-end photon lanterns, a multi-stage optical circulator, a reflection type optical fiber Bragg grating, a plurality of groups of rear-end photon lanterns, an avalanche type photoelectric detector and a demodulator, wherein the receiving antenna is connected with the plurality of groups of front-end photon lanterns through the multi-core few-mode optical fiber, each group of front-end photon lanterns are respectively connected with ports a of the plurality of optical circulators through single-mode optical fibers, a single-mode optical fiber with the reflection type optical fiber Bragg grating is connected between a port b of the optical circulator and a port of a lower -level optical circulator, a port c of each -level optical circulator is connected with the rear-end photon lantern through the single-mode optical fiber, the rear-end photon lantern is connected with the avalanche type photoelectric detector, and an.
The system has the advantages that the system can increase the receiving area of the signal light and improve the coupling efficiency of the space light by using the multicore few-mode optical fiber to receive the signal light coupled by the optical antenna, and can complete the function of wavelength division multiplexing in the few-mode optical fiber in the combination based on the photon lantern pair, the reflection type optical fiber Bragg grating and the optical circulator, thereby realizing ultrahigh communication speed.
Drawings
Fig. 1 shows kinds of photon lantern-based coherent receiving systems.
FIG. 2 is a schematic diagram of an ultra-high speed large-field receiving space laser communication receiving system according to the present invention.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings.
As shown in fig. 2, the receiving system for receiving laser communication in ultra-high speed large viewing field receiving space of the invention comprises a receiving antenna 1, a multi-core few-mode fiber 2, multiple groups of front-end photon lanterns 3, a multi-stage optical circulator 4, a reflective Fiber Bragg Grating (FBG)5, multiple groups of rear-end photon lanterns 6, an Avalanche Photo Detector (APD)7 and a demodulator 8.
The receiving antenna 1 is connected with a plurality of groups of front-end photon lanterns 3 through multi-core few-mode optical fibers 2;
each group of front-end photon lanterns 3 are respectively connected with ports a of a plurality of optical circulators 4 by single mode fibers, the ports b of the optical circulators 4 are connected with the ports a of the lower -level optical circulators 4 by the single mode fibers with reflective fiber Bragg gratings 5, the ports c of each -level optical circulator 4 are connected with a rear-end photon lantern 6 by the single mode fibers, the rear-end photon lantern 6 is connected with an avalanche photodetector 7, and the output port of the avalanche photodetector 7 is connected with a demodulator 8.
Free space light containing multiple wavelengths enters a receiving antenna 1, the free space light is coupled, the coupled free space light enters a multi-core few-mode optical fiber 2, the free space light is divided into multiple beams of few-mode signal light and transmitted to multiple front-end photon lanterns 3 through different fiber cores, the few-mode signal light is separated into multiple paths of single-mode signal light through the front-end photon lanterns 3, the multiple paths of single-mode signal light are transmitted into a port a of an optical circulator 4 through multiple single-mode optical fibers, an optical signal of the port a contains signal light with multiple wavelengths, multi-wavelength single-mode signal light input by the port a is output from a port b of the optical circulator 4 and enters a reflective optical fiber Bragg grating 5, the reflective optical fiber Bragg grating 5 reflects single-mode signal light with a specific wavelength in the multi-wavelength single-mode signal avalanche light back to a port b of the optical circulator 4, the single-mode signal light with the rest wavelengths is transmitted to a port of a lower -level optical circulator through the reflective optical fiber Bragg grating 5, single-mode signal light with a single-mode wavelength returned from the port b of the optical circulator 4 b is converted into single-mode signal light with a single-mode signal light with the same wavelength , the single-mode signal light transmitted from a port c of the optical fiber Bragg grating 82, the single-mode optical fiber Bragg grating 82, and the single-mode signal light is transmitted to a multi-mode signal light demodulation device 367, and transmitted to a multi-mode optical fiber.
The multicore few-mode optical fiber 2 has a plurality of cores, and the cores are few-mode optical fibers.
The front end photon lantern 3 and the rear end photon lantern 6 form a photon lantern pair, but the connection modes of the front end photon lantern 3 and the rear end photon lantern 6 in the system are opposite, the front end photon lantern 3 inputs a few-mode signal light and outputs a plurality of single-mode signal lights, the function of the front end photon lantern 3 is to decompose the few-mode signal light into the plurality of single-mode signal lights for wavelength division multiplexing, the rear end photon lantern 6 inputs a plurality of single-mode signal lights and outputs a single-mode signal light, and the function of the rear end photon lantern 6 couples the single-mode signal light with the same wavelength into single-mode signal lights for photoelectric signal conversion.
The examples of the invention are as follows:
the signal light received by the receiver is composed of three paths of wavelength light, which is 1548.5nm, 1549.3nm and 1550.1nm respectively, the signal light is received and coupled by a receiving antenna 1, the free space light is divided into a plurality of beams of few-mode signal light by a multi-core few-mode optical fiber 2 and transmitted to a front-end photon lantern 3 by different fiber cores, the signal light enters a plurality of front-end photon lanterns 3 and is divided into a plurality of multi-wavelength single-mode signal light, the multi-wavelength single-mode signal light is transmitted to a port a of an I-level optical circulator 4 by a single-mode optical fiber, the signal light containing three paths of wavelengths is output from a port b of the I-level optical circulator 4, the single-mode signal light with the wavelength of 1548.5nm is reflected by a reflection type optical fiber Bragg grating 5 back to an avalanche port b of the I-level optical circulator 4, the signal light with the wavelengths of 1549.3nm and 1550.1nm enters a port a of the II-level optical circulator 4 by the reflection type optical Bragg grating 5, the signal light reflected back to a port b of the II-level optical circulator 4, the signal light enters a port b of the I-level optical circulator 4, the optical circulator, the signal light is converted into a signal light, the signal light enters a signal light which enters a signal light of a single-mode optical circulator, the signal light enters a data is converted into a data transmission end of the optical circulator, the signal light with the optical circulator, the signal light enters a circulator, the signal light with the optical circulator, the signal light with the optical circulator 2, the signal light with the optical circulator 2, the wavelength of the optical circulator 2, the optical circulator 2, the circulator.
The above-described embodiments may further steps to change the wavelength, the number of carriers with different wavelengths, the number of cores of the few-mode multicore fiber, etc., and the embodiments are merely described as preferred examples of the present invention patent, and do not limit the concept and scope of the present invention patent, and those skilled in the art may make various changes and modifications to the technical solution of the present invention without departing from the design concept of the present invention, and all fall within the protection scope of the present invention.
Claims (4)
1. The ultra-high-speed large-view-field receiving space laser communication receiving system is characterized by comprising a receiving antenna (1), a multi-core few-mode optical fiber (2), a plurality of groups of front-end photon lanterns (3), a multi-stage optical circulator (4), a reflection type optical fiber Bragg grating (5), a plurality of groups of rear-end photon lanterns (6), an avalanche type photoelectric detector (7) and a demodulator (8);
the receiving antenna (1) is connected with a plurality of groups of front-end photon lanterns (3) through a multi-core few-mode optical fiber (2);
each group of front-end photon lanterns (3) are respectively connected with ports a of a plurality of optical circulators (4) by single-mode fibers, the ports b of the optical circulators (4) are connected with the ports a of a lower -level optical circulator (4) by single-mode fibers with reflective fiber Bragg gratings (5), the ports c of each -level optical circulator (4) are connected with a rear-end photon lantern (6) by single-mode fibers until the ports b of the last -level optical circulator (4) are connected with the photon lantern (6) by multi-path single-mode fibers, the rear-end photon lantern (6) is connected with an avalanche photodetector (7), and the output port of the avalanche photodetector (7) is connected with a demodulator (8);
the light path ring direction of each port of the optical circulator (4) is in the directions of a, b and c.
2. The ultra-high-speed large-visual-field receiving space laser communication receiving system according to claim 1, wherein the receiving antenna (1) receives free space light, the free space light is coupled into the multi-core few-mode optical fiber (2), the free space light is divided into a plurality of few-mode signal light and transmitted to the plurality of front-end photon cages (3) through different fiber cores, the few-mode signal light is separated into a plurality of paths of single-mode signal light through the front-end photon cages (3), the plurality of paths of single-mode signal light are transmitted into a port a of the optical circulator (4) through the plurality of single-mode optical fibers, the optical signal of the port a contains signal light with a plurality of wavelengths, the multi-wavelength single-mode signal light input from the port b of the optical circulator (4) is output into the reflective fiber bragg grating (5), the reflective fiber bragg grating (5) reflects the single-mode signal light with a specific wavelength of certain of the multi-wavelength single-mode signal light back to the port b of the optical circulator (4), the single-mode signal light with the rest wavelengths transmitted to the lower optical fiber () through the reflective fiber bragg grating (5) is transmitted to the port of the optical circulator (4), the single-mode optical fiber is demodulated, the single-mode signal light transmitted from the port b of the optical circulator (677) and the single-mode optical fiber, the single-mode optical signal light is transmitted to the single-mode optical fiber (677) and transmitted to the single-wavelength optical signal light transmitted to the single-wavelength optical fiber (677) and transmitted to the single-wavelength.
3. An ultra-high-speed large-field-of-view receiving space laser communication receiving system according to claim 1, wherein the multicore few-mode fiber (2) has a plurality of cores, and the cores are few-mode fibers.
4. The ultra-high-speed large-visual-field receiving space laser communication receiving system as claimed in claim 1, wherein the front end photon lantern (3) and the rear end photon lantern (6) form a photon lantern pair, the connection mode of the front end photon lantern (3) and the rear end photon lantern (6) is opposite, the front end photon lantern (3) is bundles of input of few-mode signal light and multi-path single-mode signal light output, the function of the input is to decompose the few-mode signal light into multi-path single-mode signal light for wavelength division multiplexing, the rear end photon lantern (6) is a plurality of bundles of input of single-mode signal light, bundles of single-mode signal light output, the function of the output is to couple the single-mode signal light with the same wavelength into bundles of single-mode signal light for.
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| CN109600171A (en) * | 2019-01-02 | 2019-04-09 | 中国科学院上海光学精密机械研究所 | Free Space Optics based on few mould multi-core optical fiber receive system |
| CN110098868A (en) * | 2019-04-09 | 2019-08-06 | 中国科学院上海光学精密机械研究所 | A kind of adaptive array reception space coherent optical communication system |
| CN114268377B (en) * | 2021-12-31 | 2023-06-09 | 网络通信与安全紫金山实验室 | Optical receiving system based on large-mode-field single-mode fiber array |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337933B1 (en) * | 1999-04-08 | 2002-01-08 | Ciena Corporation | Narrow bandwidth fiber bragg grating apparatus |
| CN103095373A (en) * | 2013-01-31 | 2013-05-08 | 华中科技大学 | Self-correlation optical fiber communication system based on mode division multiplexing |
| WO2016103200A3 (en) * | 2014-12-23 | 2016-08-18 | Eni S.P.A. | Optical fiber vibration measurement system in multiphase flows with related method to monitor multiphase flows |
| CN106104336A (en) * | 2014-03-10 | 2016-11-09 | 阿尔卡特朗讯 | By on optical signalling fluid space mode multiplex to multimode fibre |
| CN106788704A (en) * | 2016-11-25 | 2017-05-31 | 武汉邮电科学研究院 | The measuring system and method for the less fundamental mode optical fibre intermode time delay based on synchronizing sequence |
| CN106895959A (en) * | 2017-04-17 | 2017-06-27 | 吉林大学 | A kind of less fundamental mode optical fibre Mode Coupling measurement apparatus based on two-photon lantern and less fundamental mode optical fibre circulator |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7295738B2 (en) * | 2004-12-13 | 2007-11-13 | General Dynamics Advanced Information Systems, Inc. | System and method for performing dispersion compensation |
| EP2365654B1 (en) * | 2010-03-10 | 2019-05-29 | Ofs Fitel Llc, A Delaware Limited Liability Company | Multicore fiber transmission systems and methods |
-
2018
- 2018-07-13 CN CN201810768043.2A patent/CN108923857B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6337933B1 (en) * | 1999-04-08 | 2002-01-08 | Ciena Corporation | Narrow bandwidth fiber bragg grating apparatus |
| CN103095373A (en) * | 2013-01-31 | 2013-05-08 | 华中科技大学 | Self-correlation optical fiber communication system based on mode division multiplexing |
| CN106104336A (en) * | 2014-03-10 | 2016-11-09 | 阿尔卡特朗讯 | By on optical signalling fluid space mode multiplex to multimode fibre |
| WO2016103200A3 (en) * | 2014-12-23 | 2016-08-18 | Eni S.P.A. | Optical fiber vibration measurement system in multiphase flows with related method to monitor multiphase flows |
| CN106788704A (en) * | 2016-11-25 | 2017-05-31 | 武汉邮电科学研究院 | The measuring system and method for the less fundamental mode optical fibre intermode time delay based on synchronizing sequence |
| CN106895959A (en) * | 2017-04-17 | 2017-06-27 | 吉林大学 | A kind of less fundamental mode optical fibre Mode Coupling measurement apparatus based on two-photon lantern and less fundamental mode optical fibre circulator |
Non-Patent Citations (2)
| Title |
|---|
| 3x10 Gb/s mode group-multiplexed transmission over a 20 km few-mode fiber using photonic lanterns;Liu, Huiyuan et al;《Optical Fiber Communications Conference and Exhibition (OFC) 2017 》;20170323;第1-3页 * |
| Multiplexed single-mode wavelength-to-time mapping of multimode light;Chandrasekharan et al;《NATURE COMMUNICATIONS》;20170125;第8卷;第1-10页 * |
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