CN208337586U - A kind of fiber radio integration communication system of more scene applications - Google Patents
A kind of fiber radio integration communication system of more scene applications Download PDFInfo
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- CN208337586U CN208337586U CN201820911802.1U CN201820911802U CN208337586U CN 208337586 U CN208337586 U CN 208337586U CN 201820911802 U CN201820911802 U CN 201820911802U CN 208337586 U CN208337586 U CN 208337586U
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Abstract
The utility model discloses a kind of fiber radio integration communication system of more scene applications, including OLT plate, optical fiber, the second wavelength-division demultiplexing unit and several ONU plates, the OLT plate successively passes through optical fiber and the second wavelength-division demultiplexing unit is connect with several ONU plates.OLT plate links ONU plate by standard single-mode fiber and wavelength-division demultiplexing unit in the utility model, and high speed signal is transmitted to distal end ONU plate by OLT plate, implements more scene multi-standard signal coverings.
Description
Technical field
The utility model belongs to Information & Communication Technology field more particularly to a kind of fiber radio integration of more scene applications
Communication system.
Background technique
With the high speed development of Information and Communication Technology (ICT), the communication of super large broadband optical fiber accesses increasingly with high-speed mobile
By the attention of industry, optical fiber technology and wireless technology merge be future communications developing direction.However, for following indoor
The high-speed microwave optical fiber between outdoor compartment system, ultrahigh speed optical fiber Metropolitan Area Network (MAN), ultrahigh speed WLAN, novel adjacent base station
The scheme to interconnect is difficult to accomplish real depth integration based on current technology platform, and for application between each system
Scene have some limitations, it is difficult to accomplish really applied to more scenes fiber radio integration communicate.
Utility model content
The utility model is intended to provide a kind of OLT plate and links ONU by standard single-mode fiber and wavelength-division demultiplexing unit
Plate, high speed signal are transmitted to distal end ONU plate by OLT plate, then implement the system of more scene multi-standard signal coverings.
The technical solution adopted in the utility model is as follows: a kind of fiber radio integration communication system of more scene applications, packet
Include OLT plate, optical fiber, the second wavelength-division demultiplexing unit and several ONU plates, the OLT plate successively pass through optical fiber and
Second wavelength-division demultiplexing unit is connect with several ONU plates,
The OLT plate includes tunable radio frequency generator, a raising frequency processing unit, secondary raising frequency processing unit, light
Electric modulator MZM 01, fiber amplifier EDFA, first wave decomposition multiplex unit and the first wavelength-division Multiplexing Unit, it is described adjustable
Humorous radio-frequency signal generator successively with a raising frequency processing unit, secondary raising frequency processing unit, electrooptic modulator MZM 01, fiber amplifier
Device EDFA, first wave decomposition multiplex unit and the connection of the first wavelength-division Multiplexing Unit；The OLT plate further include laser light source,
First polarization control unit, channel power detection unit, the laser light source successively with the first polarization control unit and photoelectricity tune
The connection of device MZM 01 processed, the channel power detection unit respectively with laser light source, electrooptic modulator MZM 01, fiber amplifier
EDFA and the connection of first wave decomposition multiplex unit；
The OLT plate includes the direct detection unit of photoelectricity, bandpass filtering unit, high frequency amplifying module, low-pass filtering list
Member, high pass filter unit and microwave amplification module, the direct detection unit of photoelectricity successively with bandpass filtering unit and high frequency
Amplification module connection；The direct detection unit of photoelectricity is connect with low-pass filter unit；The direct detection unit of photoelectricity is successively
It is connect with high pass filter unit and microwave amplification module.
Further, several ONU plate is with ONU-1, ONU-2, ONU-15 differentiation；Described
31 road laser harmonic signals are provided in one wavelength-division demultiplexing unit, wherein laser harmonic signal and channel power detection are single all the way
Member connection, in addition 30 road laser harmonic signals are connect in a manner of channel with the first wavelength-division Multiplexing Unit；30 road laser is humorous
Wave signal is corresponded with channel 1,2 channel 30 of channel respectively.
Further, every two adjacent channel partners, totally 15 pairs of channels；Each pair of channel and ONU-1, ONU-
2, ONU-15 is corresponded.
Further, the OLT plate further includes the first base band data unit, electrooptic modulator MZM 02, high frequency
Data cell and electrooptic modulator MZM 03, the electrooptic modulator MZM 02 and electrooptic modulator MZM03 are set to channel 1
In, the electrooptic modulator MZM 02 is connect with the first base band data unit, the electrooptic modulator MZM 03 and high-frequency data
Unit connection.
Further, the ONU plate further includes electrooptic modulator MZM 04, the second base band data unit and the second polarization
Control unit, the electrooptic modulator MZM 04 are connect with the second base band data unit and the second polarization control unit respectively, institute
It states ONU plate and passes through electrooptic modulator MZM 04 and the second polarization control unit for data back OLT plate；Second wavelength-division
Demultiplexing unit is connect with the direct detection unit of photoelectricity and electrooptic modulator MZM 04 respectively.
Further, the symmetrical factor default configuration 0.88 of the electrooptic modulator MZM 01, extinction ratio 30dB；It is described
Amplification factor the default configuration 30dB, noise coefficient 4dB of fiber amplifier EDFA；The laser light source exports default configuration
0dBm, line width 5MHz, initial phase are 0 degree；The 31 road laser harmonic signal is 20GHz；Each channel is with 10 ± 1dBm function
Rate output.
The utility model has the beneficial effects that: passing through the modulation of OLT plate, so that not needing complexity in ONU plate
Signal mixing, signal modulation process, be directly realized the generation of base band information source, high frequency information source, microwave information source, and remain
The legacy data modulation format of OLT plate transmitting terminal, and then the information source solution party of low complex degree is provided for more scene communication access
Case.
Detailed description of the invention
The utility model will illustrate by example and with reference to the appended drawing, in which:
Fig. 1 is the architecture diagram of the utility model fiber radio integration communication system.
Specific embodiment
With reference to the accompanying drawing, the utility model is described in detail.
In order to make the purpose of the utility model, technical solutions and advantages more clearly understood, below in conjunction with attached drawing and implementation
Example, the present invention will be further described in detail.It should be appreciated that specific embodiment described herein is only used to explain
The utility model is not used to limit the utility model.
As shown in Figure 1, a kind of fiber radio integration communication system of more scene applications, including OLT plate, optical fiber, second
Wavelength-division demultiplexing unit and several ONU plates, the OLT plate successively pass through optical fiber and the second wavelength-division demultiplexing unit with
Several ONU plate connections, the OLT plate include tunable radio frequency generator, a raising frequency processing unit, at secondary raising frequency
Manage unit, electrooptic modulator MZM 01, fiber amplifier EDFA, first wave decomposition multiplex unit and the first wavelength-division multiplex list
Member, the tunable radio frequency generator successively with a raising frequency processing unit, secondary raising frequency processing unit, electrooptic modulator MZM
01, fiber amplifier EDFA, first wave decomposition multiplex unit and the connection of the first wavelength-division Multiplexing Unit；The OLT plate also wraps
Include laser light source, the first polarization control unit, channel power detection unit, the laser light source successively with the first Polarization Control list
Member and the connection of electrooptic modulator MZM 01, the channel power detection unit respectively with laser light source, electrooptic modulator MZM 01,
Fiber amplifier EDFA and the connection of first wave decomposition multiplex unit；
The OLT plate includes the direct detection unit of photoelectricity, bandpass filtering unit, high frequency amplifying module, low-pass filtering list
Member, high pass filter unit and microwave amplification module, the direct detection unit of photoelectricity successively with bandpass filtering unit and high frequency
Amplification module connection；The direct detection unit of photoelectricity is connect with low-pass filter unit；The direct detection unit of photoelectricity is successively
It is connect with high pass filter unit and microwave amplification module.
Several ONU plate is with ONU-1, ONU-2, ONU-15 differentiation；In first Wave Decomposition
31 road laser harmonic signals are provided in Multiplexing Unit, wherein laser harmonic signal is connect with channel power detection unit all the way,
Other 30 road laser harmonic signal is connect in a manner of channel with the first wavelength-division Multiplexing Unit；The 30 road laser harmonic signal point
It is not corresponded with channel 1,2 channel 30 of channel.
Every two adjacent channel partners, totally 15 pairs of channels；Each pair of channel and ONU-1, ONU-2,
ONU-15 is corresponded.
The OLT plate further include the first base band data unit, electrooptic modulator MZM 02, high-frequency data unit and
Electrooptic modulator MZM 03, the electrooptic modulator MZM 02 and electrooptic modulator MZM 03 are set in channel 1, the photoelectricity
Modulator MZM 02 is connect with the first base band data unit, and the electrooptic modulator MZM 03 is connect with high-frequency data unit.
The ONU plate further includes electrooptic modulator MZM 04, the second base band data unit and the second polarization control unit,
The electrooptic modulator MZM 04 is connect with the second base band data unit and the second polarization control unit respectively, the ONU plate
By electrooptic modulator MZM 04 and the second polarization control unit by data back OLT plate；The second wavelength-division demultiplexing is single
Member is connect with the direct detection unit of photoelectricity and electrooptic modulator MZM 04 respectively.
The symmetrical factor default configuration 0.88 of the electrooptic modulator MZM 01, extinction ratio 30dB；The fiber amplifier
Amplification factor the default configuration 30dB, noise coefficient 4dB of device EDFA；The laser light source exports default configuration 0dBm, line width
For 5MHz, initial phase is 0 degree；The 31 road laser harmonic signal is 20GHz；Each channel is with 10 ± 1dBm power output.
A kind of signal processing method of fiber radio integration communication system comprising proximal end output and distal end export.
As shown in Figure 1, OLT plate is N number of by 10 kilometers of standard single-mode fibers and the second wavelength-division demultiplexing unit and distal end
ONU plate establishes the link high-rate information transmission, and the pure laser harmonic for being transmitted to ONU plate is used for the uplink of the ONU plate
Road laser light source.
Proximal end output the following steps are included:
1. tunable radio frequency generator exports the tone signal (by taking 5GHz as an example) of different frequency range, handled by raising frequency twice
20GHz radiofrequency signal is exported afterwards, and the radiofrequency signal is by electrooptic modulator MZM 01 to being exported by laser light source and implement to bias
The laser light wave of the 194.1THz of control carries out Electro-optical Modulation, and modulated optical carrier implements amplification by fiber amplifier EDFA
Then processing is again implemented the 31 road laser harmonic signals that adjacent channel spacing is 20GHz by first wave decomposition multiplex unit
Wavelength-division processing；
2. the signal of laser harmonic all the way that branch comes out implements function to the channel optical power by channel power detection unit
Then rate detection implements feedback control as control signal difference fiber amplifier EDFA, electrooptic modulator MZM 01 and laser light source
System, respectively to the times magnification of laser light source power output, the symmetrical factor of electrooptic modulator MZM 01 and fiber amplifier EDFA
Number carries out implementing the automatic fine tuning of dynamic approximation formula, and then ensures the road wave first wave decomposition multiplex unit decomposition Chu Ge lightwave signal
Power equalization and each 10 ± 1dBm of channel power output；Wherein, the symmetrical factor default configuration of electrooptic modulator MZM 01
0.88, extinction ratio 30dB；Amplification factor the default configuration 30dB, noise coefficient 4dB of fiber amplifier EDFA；Laser light source
Default configuration 0dBm, line width 5MHz are exported, initial phase is 0 degree；
3. the other 30 road laser harmonic that first wave decomposition multiplex unit decomposition goes out is a pair, Ke Yihua according to adjacent channel
15 pairs of channels are classified as, first is used for the ONU-1 corresponding to distal end to (i.e. channel 1, channel 2), and second to (i.e. channel 3, channel 4)
For corresponding to the ONU-2 of distal end, and so on.(other 14 pairs of channel processing method phases are described as follows for first pair
Together): channel 1 passes sequentially through electrooptic modulator MZM 02 and electrooptic modulator MZM 03 respectively by the first base band data unit, height
According to cells modulate, (modulation format can be OFDM, n-QAM, QPSK or Nyquist-DP-16QAM to frequency, then pass through mixing
Afterwards, raising frequency is the high-frequency signal of 2.4GHz), modulated optical carrier passes through again with unmodulated adjacent laser harmonic wave (i.e. channel 2)
First wavelength-division Multiplexing Unit is coupled to implementation signal transmission in standard single-mode fiber, and then reaches the second wavelength-division demultiplexing of distal end
In unit；
Distal end output the following steps are included:
1. the second wavelength-division demultiplexing unit receives after the modulated light carrier and laser harmonic that the transmission of OLT plate comes, press
15 ONU plates are given 15 pairs of channel distributions respectively according to adjacent channel pair principle in OLT.
2. (other 14 pairs of channel processing methods are identical): the letter of modulated light carrier is described as follows by taking ONU-1 as an example
Road 1 and pure laser harmonic channel 2 implement combining and light-to-current inversion processing in the direct probe unit of photoelectricity, then power again
Respectively three tunnel, the first via pass sequentially through bandpass filtering unit and high frequency amplifying module processing, obtain 2.4GHz high-frequency carrier signal
(wherein only carrying the high-frequency data modulated signal information in OLT plate), then emits through antenna, realizes downlink wireless
Access；
3. the second tunnel by low-pass filter unit recovers raw baseband data, (this base band data is exactly in OLT plate
Base band data modulated signal information), realize downlink access in radio；
4. third road pass sequentially through high-pass filtering list open with microwave amplification module processing, obtain 20GHz microwave signal (wherein
Only carry the base band data modulated signal information in OLT plate), then emit through antenna, realizes downlink inserting of microwave.
As shown in Figure 1, the channel 2 in ONU plate isolates a part of laser harmonic before merging photodetection with channel 1 again
The base band data of uplink is modulated by electrooptic modulator MZM 04, then by passing through uplink optical after the second polarization control unit
Fibre passes back to OLT plate, and then realizes uplink communication.The program just saves a uplink linght in each ONU plate
Module, is greatly lowered the overall cost of multiple ONU plates in this way, while also simplifying the complexity of ONU plate, and then drops
The maintenance cost of later period active light module in low ONU plate.
Need illustrate it is emphasised that:
(1) modulated light carrier is combined in ONU plate with the pure laser harmonic of adjacent channel, light-to-current inversion processing can produce
Raw 20GHz carrier signal；Modulated light carrier can also be combined in ONU plate with the pure laser harmonic of non-adjacent channels, light
Electric conversion process generates 20*N (GHz) carrier signal for microwave radio commu (channel where N here refers to modulated light carrier
With the absolute value of the difference of channel where the non-adjacent laser harmonic of combining)；Adjust the output frequency of tunable radio frequency generator, energy
Enough is to be adjusted to other desired frequency range by 20GHz so that changes occurred at intervals in laser harmonic, corresponding wavelength-division demultiplexes,
The channel spacing of wavelength-division multiplex adjusts together therewith, and then the frequency range of the inserting of microwave of ONU end can be made to change, and obtains
The microwave frequency band that we want.
(2) in OLT plate, by improving the structure of 01 two three-dB couplers of device inside of electrooptic modulator MZM, make
The symmetrical factor for obtaining electrooptic modulator is fixed on 0.88 numerically, and laser light source is by electrooptic modulator MZM 04 by radiofrequency signal
Power equalization, a series of phase locked laser harmonics are produced after modulation.Using first wave decomposition multiplex unit, to isolating
One of channel laser harmonic implement power detection, be then fed to fiber amplifier EDFA and electrooptic modulator MZM 01
Implement parameter dynamic to monitor,.
(3) in ONU plate, complicated signal mixing, signal modulation process is not needed, base band letter is directly realized
The generation in source, high frequency information source, microwave information source, and the legacy data modulation format of OLT plate transmitting terminal is remained, and then be more
The information source solution of scene communication access offer low complex degree.
Above embodiments are only sufficiently open rather than limitation the utility model, all creation purports based on the utility model,
The replacement of equivalence techniques feature without creative work should be considered as the range of the application exposure.
Claims (6)
1. a kind of fiber radio integration communication system of more scene applications, including OLT plate, optical fiber, the second wavelength-division demultiplexing are single
First and several ONU plate, the OLT plate successively pass through optical fiber and the second wavelength-division demultiplexing unit and several ONU plates
Block connection, which is characterized in that
The OLT plate includes tunable radio frequency generator, a raising frequency processing unit, secondary raising frequency processing unit, photoelectricity tune
Device MZM 01, fiber amplifier EDFA, first wave decomposition multiplex unit and the first wavelength-division Multiplexing Unit processed, it is described tunable to penetrate
Frequency generator successively with a raising frequency processing unit, secondary raising frequency processing unit, electrooptic modulator MZM 01, fiber amplifier
EDFA, first wave decomposition multiplex unit and the connection of the first wavelength-division Multiplexing Unit；The OLT plate further includes laser light source,
One polarization control unit, channel power detection unit, the laser light source successively with the first polarization control unit and electro-optical modulation
The connection of device MZM 01, the channel power detection unit respectively with laser light source, electrooptic modulator MZM 01, fiber amplifier
EDFA and the connection of first wave decomposition multiplex unit；
The OLT plate includes the direct detection unit of photoelectricity, bandpass filtering unit, high frequency amplifying module, low-pass filter unit, height
Pass filtering unit and microwave amplification module, the direct detection unit of photoelectricity successively with bandpass filtering unit and High frequency amplification mould
Block connection；The direct detection unit of photoelectricity is connect with low-pass filter unit；The direct detection unit of photoelectricity successively with high pass
Filter unit is connected with microwave amplification module.
2. fiber radio integration communication system as described in claim 1, which is characterized in that several ONU plate with
ONU-1, ONU-2, ONU-15 are distinguished；31 road laser harmonics are provided in the first wave decomposition multiplex unit
Signal, wherein laser harmonic signal is connect with channel power detection unit all the way, in addition 30 road laser harmonic signals are with channel
Mode is connect with the first wavelength-division Multiplexing Unit；The 30 road laser harmonic signal is believed with channel 1, channel 2 respectively
Road 30 corresponds.
3. fiber radio integration communication system as claimed in claim 2, which is characterized in that every two adjacent channel composition one
It is right, totally 15 pairs of channels；Each pair of channel and ONU-1, ONU-2, ONU-15 are corresponded.
4. fiber radio integration communication system as claimed in claim 2, which is characterized in that the OLT plate further includes first
Base band data unit, electrooptic modulator MZM 02, high-frequency data unit and electrooptic modulator MZM 03, the electrooptic modulator
MZM 02 and electrooptic modulator MZM 03 are set in channel 1, the electrooptic modulator MZM 02 and the first base band data unit
Connection, the electrooptic modulator MZM 03 are connect with high-frequency data unit.
5. fiber radio integration communication system as claimed in claim 2, which is characterized in that the ONU plate further includes photoelectricity
Modulator MZM 04, the second base band data unit and the second polarization control unit, the electrooptic modulator MZM 04 is respectively with
Two base band data cells are connected with the second polarization control unit, and the ONU plate is inclined by electrooptic modulator MZM 04 and second
Control unit of shaking is by data back OLT plate；The second wavelength-division demultiplexing unit respectively with the direct detection unit of photoelectricity and light
The connection of electric modulator MZM 04.
6. fiber radio integration communication system as claimed in claim 2, which is characterized in that the electrooptic modulator MZM's 01
Symmetrical factor default configuration 0.88, extinction ratio 30dB；The amplification factor default configuration 30dB of the fiber amplifier EDFA, makes an uproar
Sonic system number is 4dB；The laser light source exports default configuration 0dBm, line width 5MHz, and initial phase is 0 degree；31 road laser
Harmonic signal is 20GHz；Each channel is with 10 ± 1dBm power output.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201820911802.1U CN208337586U (en) | 2018-06-12 | 2018-06-12 | A kind of fiber radio integration communication system of more scene applications |
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| CN201820911802.1U CN208337586U (en) | 2018-06-12 | 2018-06-12 | A kind of fiber radio integration communication system of more scene applications |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521299A (en) * | 2018-06-12 | 2018-09-11 | 广东科学技术职业学院 | A kind of the fiber radio integration communication system and signal processing method of more scene applications |
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2018
- 2018-06-12 CN CN201820911802.1U patent/CN208337586U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108521299A (en) * | 2018-06-12 | 2018-09-11 | 广东科学技术职业学院 | A kind of the fiber radio integration communication system and signal processing method of more scene applications |
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| TR01 | Transfer of patent right |
Effective date of registration: 20210706 Address after: 528400 No.3, building 2, 191 Boai 7th Road, Torch Development Zone, Zhongshan City, Guangdong Province Patentee after: Guangdong Titan Intelligent Power Co.,Ltd. Address before: On the south side of Zhuhai Avenue in Guangdong city of Zhuhai province Jinwan District 519000 Patentee before: GUANGDONG INSTITUTE OF SCIENCE & TECHNOLOGY |
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