CN109104249A - A kind of multiple wavelength optical signal time delay network based on fiber reflector - Google Patents
A kind of multiple wavelength optical signal time delay network based on fiber reflector Download PDFInfo
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- CN109104249A CN109104249A CN201811144513.4A CN201811144513A CN109104249A CN 109104249 A CN109104249 A CN 109104249A CN 201811144513 A CN201811144513 A CN 201811144513A CN 109104249 A CN109104249 A CN 109104249A
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- fiber reflector
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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
- H04B10/50—Transmitters
- H04B10/516—Details of coding or modulation
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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
- H04B10/25—Arrangements specific to fibre transmission
- H04B10/2589—Bidirectional transmission
- H04B10/25891—Transmission components
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- Engineering & Computer Science (AREA)
- Computer Networks & Wireless Communication (AREA)
- Signal Processing (AREA)
- Optical Communication System (AREA)
Abstract
The present invention discloses a kind of multiple wavelength optical signal delay process network based on fiber reflector, including wavelength division multiplexer, adjustable attenuator, fiber reflector and optical circulator;The optical circulator includes first port, second port and third port, and the first port is input terminal, and the third port is output end, and the second port is connected with the wavelength division multiplexer;The wavelength division multiplexer includes several access ports, and the access port and the fiber reflector connect one to one to form several signal paths by optical fiber, and the signal path is provided with the adjustable attenuator;The transmission signal for controlling battle array radar is modulated on light carrier by the present invention by microwave signal, is taken full advantage of optical fiber and is transmitted that small in size, transmission loss is small and the advantage of electron-irradiation resisting;The true time delay technology based on microwave photon is used simultaneously, greatly improves the instant bandwidth of signal.
Description
Technical field
The present invention relates to optical signal prosessing fields, and in particular to a kind of multiple wavelength optical signal delay based on fiber reflector
Network.
Background technique
Traditional automatically controlled phased-array radar feeds processing system, cable control wire ruler frequently with cable control wire composition signal
Very little big, weight weight, loss is high and instant bandwidth is relatively narrow, simultaneously because signal feeding processing system has used a large amount of electronics member devices
Part makes it easy to the influence by electromagnetic interference, vulnerable to frequency dispersion.
In view of the above drawbacks, creator of the present invention obtains the present invention by prolonged research and practice finally.
Summary of the invention
To solve above-mentioned technological deficiency, the technical solution adopted by the present invention is, provides a kind of based on fiber reflector
Multiple wavelength optical signal delay process network, including wavelength division multiplexer, adjustable attenuator, fiber reflector and optical circulator;It is described
Optical circulator includes first port, second port and third port, and the first port is input terminal, and the third port is defeated
Outlet, the second port are connected with the wavelength division multiplexer;The wavelength division multiplexer includes several access ports, the channel
Port and the fiber reflector connect one to one to form several signal paths by optical fiber, and the signal path is provided with
The adjustable attenuator.
Preferably, the optical circulator is exported from the optical signal that the first port inputs from the second port, from institute
The optical signal for stating second port input is exported from the third port.
Preferably, the wavelength of optical signal after each signal path and signal source demultiplex corresponds.
Preferably, each signal path length is different.
Compared with the prior art the beneficial effects of the present invention are: 1, the present invention will control battle array radar transmission signal by microwave
In signal modulation to light carrier, takes full advantage of optical fiber and transmit that small in size, transmission loss is small and the advantage of electron-irradiation resisting;Simultaneously
Using true time delay (TTD) technology based on microwave photon, the instant bandwidth of signal is greatly improved;2, the present invention is delayed using length
Mode, different delay intervals is realized by design wave each signal path length, has that fiber lengths are short, system body
The small and high integrated level advantage of product.
Detailed description of the invention
Fig. 1 is that the present invention is based on the connection schematic diagrams of the multiple wavelength optical signal time delay network of fiber reflector.
Digital representation in figure:
1- wavelength division multiplexer;2- adjustable attenuator;3- fiber reflector;4- optical circulator;41- first port;42- second
Port;43- third port.
Specific embodiment
Below in conjunction with attached drawing, the forgoing and additional technical features and advantages are described in more detail.
Embodiment one
As shown in FIG. 1, FIG. 1 is the present invention is based on the connection signals of the multiple wavelength optical signal time delay network of fiber reflector
Figure;Multiple wavelength optical signal time delay network of the present invention based on fiber reflector include wavelength division multiplexer 1, adjustable attenuator 2,
Fiber reflector 3 and optical circulator 4.
The optical circulator 4 includes first port 41, second port 42 and third port 43, and the first port 41 is defeated
Enter end, the third port 43 is output end, and the second port 42 and the wavelength division multiplexer 1 connect;The wavelength-division multiplex
Device 1 includes several access ports, the access port and the fiber reflector 3 connected one to one by optical fiber to be formed it is several
Signal path, the signal path are provided with the adjustable attenuator 2.The adjustable attenuator 2 is for adjusting each letter
The intensity of optical signal in number channel.
The optical circulator 4 is exported from the optical signal that the first port 41 inputs from the second port 42, from described
The optical signal that second port 42 inputs is exported from the third port 43.
Signal source with different wave length optical signal is inputted through the first port 41 of the optical circulator 4, and from institute
The injection of second port 42 is stated, the signal source is entered in the wavelength division multiplexer 1 and demultiplexed, and the signal source resolves into several
The optical signal of different wave length is simultaneously exported by the different access ports, and the access port passes through optical fiber and connects the light
Fine reflecting mirror 3, the optical signal reflect back into the wavelength division multiplexer 1 through the fiber reflector 3 in the signal path
Middle carry out multiplex, the signal source after multiplex enters the second port 42 of the optical circulator 4 again, finally by the light
The third port 43 of circulator 4 exports, and realizes multiple wavelength optical signal delay process.
Several wavelength of optical signal after each signal path and signal source demultiplex correspond.
Each signal path length is different from each other, to guarantee that amount of delay is mutually different between each road signal, and further leads to
The delay effect that fiber reflector 3 improves the signal path length is crossed, to realize the delay process to optical carrier.
Multiple wavelength optical signal time delay network of the present invention based on fiber reflector by control battle array radar transmission signal by
Microwave signal is modulated on light carrier, is taken full advantage of optical fiber and is transmitted that small in size, transmission loss is small and the advantage of electron-irradiation resisting;
True time delay (TTD) technology based on microwave photon is used simultaneously, greatly improves the instant bandwidth of signal.The present invention is prolonged using length
When mode, different delay intervals is realized by design wave each signal path length, has that fiber lengths are short, system
Advantage small in size and high integrated level.
Specifically, such as Fig. 1, the signal source for inputting the wavelength division multiplexer 1 includes n different wave length that wavelength is λ 1 to λ n
Optical signal, be divided into the road n behind the end COM by the wavelength division multiplexer 1 and enter the different signal paths and transmitted, respectively
The carrier wave of signal path described in road after the adjustable attenuator 2 and by the fiber reflector 3 emit after again by
The wavelength division multiplexer 1 carries out multiplex, realizes multiple wavelength optical signal delay process.
The present invention uses full light structural, and since the transmission loss of optical fiber is small, the long distance transmission of signal is can be achieved in the present invention.
Due to believing the multi-wavelength light of the present invention based on fiber reflector using the true time delay technology of microwave photon
Number time delay network can support very high signal transient bandwidth, and different delayed time may be implemented by designing the signal path length
Amount has good anti-electromagnetic-radiation ability and stability.
The foregoing is merely presently preferred embodiments of the present invention, is merely illustrative for the purpose of the present invention, and not restrictive
's.Those skilled in the art understand that in the spirit and scope defined by the claims in the present invention many changes can be carried out to it,
It modifies or even equivalent, but falls in protection scope of the present invention.
Claims (4)
1. a kind of multiple wavelength optical signal delay process network based on fiber reflector, which is characterized in that including wavelength division multiplexer,
Adjustable attenuator, fiber reflector and optical circulator;The optical circulator includes first port, second port and third port,
The first port is input terminal, and the third port is output end, and the second port is connected with the wavelength division multiplexer;Institute
Stating wavelength division multiplexer includes several access ports, and the access port and the fiber reflector are connected one to one by optical fiber
Several signal paths are formed, the signal path is provided with the adjustable attenuator.
2. the multiple wavelength optical signal delay process network based on fiber reflector as described in claim 1, which is characterized in that institute
It states optical circulator to export from the optical signal that the first port inputs from the second port, the light inputted from the second port
Signal is exported from the third port.
3. the multiple wavelength optical signal delay process network based on fiber reflector as described in claim 1, which is characterized in that each
Wavelength of optical signal after the signal path and signal source demultiplex corresponds.
4. the multiple wavelength optical signal delay process network based on fiber reflector as described in claim 1, which is characterized in that each
The signal path length is different.
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CN201811144513.4A CN109104249A (en) | 2018-09-26 | 2018-09-26 | A kind of multiple wavelength optical signal time delay network based on fiber reflector |
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CN201811144513.4A CN109104249A (en) | 2018-09-26 | 2018-09-26 | A kind of multiple wavelength optical signal time delay network based on fiber reflector |
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Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110266392A (en) * | 2019-06-21 | 2019-09-20 | 中国人民解放军国防科技大学 | Optical fiber hydrophone light emitting device based on multi-wavelength light pulse peak staggering amplification |
Citations (4)
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WO2002049240A2 (en) * | 2000-12-16 | 2002-06-20 | Hrl Laboratories, Llc | True-time delay generator |
CN102237946A (en) * | 2010-04-23 | 2011-11-09 | 中兴通讯股份有限公司 | Reconfigurable coder/decoder and optical code division multiple access (OCDMA) passive optical network (PON) based on same |
CN103197384A (en) * | 2013-04-03 | 2013-07-10 | 上海航天测控通信研究所 | Optical signal delaying device capable of repeatedly cycling |
CN103532604A (en) * | 2013-09-30 | 2014-01-22 | 上海交通大学 | Programmable beam forming network on basis of optical wavelength division multiplexing technology |
-
2018
- 2018-09-26 CN CN201811144513.4A patent/CN109104249A/en active Pending
Patent Citations (4)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2002049240A2 (en) * | 2000-12-16 | 2002-06-20 | Hrl Laboratories, Llc | True-time delay generator |
CN102237946A (en) * | 2010-04-23 | 2011-11-09 | 中兴通讯股份有限公司 | Reconfigurable coder/decoder and optical code division multiple access (OCDMA) passive optical network (PON) based on same |
CN103197384A (en) * | 2013-04-03 | 2013-07-10 | 上海航天测控通信研究所 | Optical signal delaying device capable of repeatedly cycling |
CN103532604A (en) * | 2013-09-30 | 2014-01-22 | 上海交通大学 | Programmable beam forming network on basis of optical wavelength division multiplexing technology |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN110266392A (en) * | 2019-06-21 | 2019-09-20 | 中国人民解放军国防科技大学 | Optical fiber hydrophone light emitting device based on multi-wavelength light pulse peak staggering amplification |
CN110266392B (en) * | 2019-06-21 | 2020-09-18 | 中国人民解放军国防科技大学 | Optical fiber hydrophone light emitting device based on multi-wavelength light pulse peak staggering amplification |
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Application publication date: 20181228 |