CN103840885B - High carrier frequency and high speed light millimeter wave generating and long-span transmission system - Google Patents
High carrier frequency and high speed light millimeter wave generating and long-span transmission system Download PDFInfo
- Publication number
- CN103840885B CN103840885B CN201410077500.5A CN201410077500A CN103840885B CN 103840885 B CN103840885 B CN 103840885B CN 201410077500 A CN201410077500 A CN 201410077500A CN 103840885 B CN103840885 B CN 103840885B
- Authority
- CN
- China
- Prior art keywords
- millimeter wave
- optical
- light
- laser
- spectrum
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Landscapes
- Lasers (AREA)
- Optical Communication System (AREA)
Abstract
The invention discloses a high carrier frequency and high speed light millimeter wave generating and long-span transmission system, wherein the high carrier frequency is 40 GHz, the data speed is 10 Gbit/s, and the relay-free long span is 84.7 km. NRZ electrical data signals of 10 Gbit/s are amplified through an SHF803P and then enter a 40G intensity modulator, ninety percent of DFB lasers simultaneously enter the modulator through a polarization controller, and the laser is subjected to intensity modulation by electrical data to generate high-speed modulated light. Ninety percent of a spectrum is amplified by an erbium-doped optical fiber amplifier and is filtered by XTM50 to obtain a 40 GHz multiplicity clock spectrum, and the clock spectrum and ten percent of the high-speed modulated light are subjected to adjustment range by a VOA and then combined to obtain high-speed light millimeter waves. The light millimeter waves are amplified through a KPS fiber optic amplifier and then enter a dispersion flattened fiber set to be transmitted, and the electrical millimeter waves are formed after beat frequency in a remote base station. The method can be used for extension research of high bit rate light millimeter wave systems with the carrier frequency being 20 GHz, 30 GHz and 50 GHz, and can be used for the fields such as microwave photonics.
Description
Art
The present invention relates to a kind of high carrier frequency high rate optical millimeter wave produces and long span Transmission system, can be applicable to microwave light
The fields such as sub-, fiber optic communication, wireless intelligent acess.
Background technology
In recent years, the miscellaneous service such as big data, mobile traffic, broadband streaming media constantly increases severely, and High rate and large capacity is wireless
Communication requirement increasingly increases.In order to realize wireless broadband communication, improve its operating frequency, will be wireless to Fibre Optical Communication Technology and high frequency
Optical millimeter wave communication technology Radio-over-Fiber (RoF) got up is merged in access should be needed and give birth to.At present, optical millimeter wave produces
Raw, transmission has become as the research heat realizing ultra broadband access with reception technique as a kind of emerging communication technology growing up
Point.
In view of optical millimeter wave system requires harshness to device performance parameter, Fiber-optic parameter etc., current optical millimeter wave produces real
Test in technology, mostly adopt data compared with low rate, transmit the short situation of single spanning distance, such as NRZ optical millimeter wave signal 60GHz,
2.5Gbit/s, 50km [1Hongjun Zheng, Shanliang Liu, Xin Li, Weitao Wang, Zhen
Tian.Generation and transmission simulation of60G millimeter-wave by using
semiconductor optical amplifiers for radio-over-fiber systems.Optics
Communications.282(22)：4440-4444 (2009)], OFDM form optical millimeter wave signal 19GHz, 4Gbps, 50km
[2C.Lin, Y.Lin, J. (J.) Chen, S.Dai, P.T.Shih, P.Peng, and S.Chi, " Optical direct-
detection OFDM signal generation for radio-over-fiber link using frequency
Doubling scheme with carrier suppression, " Opt.Express16,6056-6063 (2008)], OOK
Optical millimeter wave 60GHz and 56GHz, 1Gbps, 50km [3Liang Zhang, Ming Zhu, Chenhui Ye, Shu-Hao Fan,
Cheng Liu, Xiaofeng Hu, Pan Cao, Qingjiang Chang, Yikai Su, and Gee-Kung Chang, "
Generation and transmission of multiband and multi-gigabit60-GHz MMW signals
In an RoF system with frequency quintupling technique, " Opt.Express21,9899-
9905 (2013)], OFDM optical millimeter wave 60GHz, 4.65Gbps × 8channels, 40km [4Li Tao, Jianjun Yu, Qi
Yang, Yufeng Shao, Junwen Zhang, and Nan Chi, " A novel transform domain
processing based channel estimation method for OFDM radio-over-fiber
Systems, " Opt.Express21,7478-7487 (2013)].However, China is vast in territory, populous, information communication needs
Ask swift and violent growth, high bit rate optical millimeter wave produces the demand transmitted with long span becomes increasingly urgent.
Content of the patent
In the case of optical millimeter wave two-forty, long span demand are increasingly urgent, the present invention proposes a kind of high carrier frequency at a high speed
Rate optical millimeter wave produces and long span Transmission system, system high carrier frequency 40GHz, data high-speed rate 10Gbit/s, long span
84.7km；Adjustment systematic parameter, carrier frequency can be extended to 20GHz, 30GHz, 50GHz.
The technical solution adopted for the present invention to solve the technical problems is：
For 40GHz, 10Gbit/s high rate optical millimeter-wave systems, the present invention proposes a kind of high carrier frequency high rate optical milli
Metric wave produces and long span Transmission system, intends the technical scheme adopting：Agilent 43Gbit/s Error Detector 81250 output
10Gbit/s two-forty NRZ pseudo random pulse sequence electricity data signal is amplified into 40G via broadband electric amplifier SHF803P
High-speed wideband intensity modulator MOD；The laser that narrow linewidth Distributed Feedback Laser produces is through 10：After 90 shunt OC1 branches, wherein
10% laser can be used for producing long-range light local vibration source, does not discuss herein；Wherein 90% laser is same through optical polarization controller PC
When enter 40G high-speed wideband intensity modulator MOD；Narrow-linewidth laser is modulated by electric intensity data and is produced two-forty wide-band modulation
Light, the two-forty wide-band modulation light producing here can branch be that this system produces simultaneously as the part of descending optical millimeter wave signal
Optical millimeter wave and long-range light generation source, but only discuss here and produce optical millimeter wave situation；Two-forty wide-band modulation light is by 10：
After 90 shunt OC2 branches, wherein 90% light wave is amplified into optical filter XTM50 through erbium-doped optical fiber amplifier EDFA 1,
Obtain many times of clock spectrum of 40GHz after filtering, this clock spectrum separate with shunt OC2 10% laser spectrum by tunable optical
Through 50 after attenuator VOA adjustment：High rate optical millimeter wave is obtained after 50 combiner OC3 combinings；Optical millimeter wave is through KPS Er-doped fiber
Amplifier is amplified into nearly Dispersion Flattened Fiber group Fiber transmission, and single spanning distance Transmission Fibers group length 84.7km is (by G655 light
Fine 8.47km and Dispersion Flattened Fiber 76.23km connects composition)；Optical millimeter wave forms electric millimeter wave after reaching remote base stations beat frequency
Signal.Accessed in light path link wire jumper using spectrogrph AQ6319, oscillograph DSA8300 and measure spectrum, eye pattern information.
The invention has the beneficial effects as follows：
In 40GHz, 10Gbit/s high rate optical millimeter-wave systems, the present invention proposes a kind of high carrier frequency high rate optical milli
Metric wave produces and long span Transmission system；High rate optical millimeter wave and long-range light are produced using same DFB LASER Light Source simultaneously
Local vibration source, can effectively suppress phase noise；Using laser instrument there is the performances such as narrow linewidth, high side mode suppression ratio, can effectively press down
Intensity noise processed；Go intensity modulated DFB laser can carry using 10Gbit/s high data rate by a broadband intensity modulator
High data rate.Nearly Dispersion Flattened Fiber group using G655 and Dispersion Flattened Fiber composition is transmitted, and can effectively improve letter
Number input power and reduce full span dispersion, improves transmission performance；With using radio frequency and baseband signal phase modulation and by force respectively
Two kinds of generation optical millimeter wave methods of degree are compared, and the present invention can produce high rate optical millimeter wave and long-range light local vibration source simultaneously,
Optical millimeter wave produces long with transmission plan novelty, span.This patent method and apparatus can be used as exploratory development high bit rate light milli
The important references of metric wave system, can be applicable to the fields such as Microwave photonics, fiber optic communication.
Brief description
Fig. 1 is that a kind of high carrier frequency high rate optical millimeter wave produces and long span Transmission system installation drawing.1 is Agilent
43Gbit/s Error Detector 81250,2 is broadband electric amplifier SHF803P, and 3 is 40G high-speed wideband intensity modulator MOD, and 4 is narrow
Live width Distributed Feedback Laser, 5 is 10：90 shunt OC1,6 is optical polarization controller PC, and 7 is 10：90 shunt OC2,8 is er-doped
Fiber amplifier EDFA1,9 is optical filter XTM50, and 10 is adjustable optical attenuator VOA, and 11 is 50：50 combiner OC3,12 are
KPS erbium-doped fiber amplifier, 13 is nearly Dispersion Flattened Fiber group Fiber, and 14 is spectrogrph AQ6319, and 15 is oscillograph
DSA8300.
Fig. 2 is two-forty wide-band modulation spectrum (a) and its eye pattern (b) obtaining.
Fig. 3 is (KPS pumping current I after KPS erbium-doped fiber amplifier amplifiesP=0.4A) optical millimeter wave.
Fig. 4 is eye pattern after nearly Dispersion Flattened Fiber transmits 84.7km for the two-forty wide-band modulation light, and Fig. 4 (a) is only
Situation (the I that KPS erbium-doped fiber amplifier amplifiesP=0.4A), Fig. 4 (b) is the situation that only KPS erbium-doped fiber amplifier amplifies
(IP=0.6A).
The spectrum that Fig. 5 is optical millimeter wave after nearly Dispersion Flattened Fiber transmits 84.7km, is only KPS Erbium-doped fiber amplifier
Situation (the I that device amplifiesP=0.4A)
Specific embodiment
The present invention is further described with enforcement below in conjunction with the accompanying drawings.
Shown in Fig. 1, the 10Gbit/s two-forty NRZ pseudo-random pulse that Agilent 43Gbit/s Error Detector 81250 (1) exports
Sequence electricity data signal is amplified into 40G high-speed wideband intensity modulator MOD via broadband electric amplifier SHF803P (2)
(3)；The laser that narrow linewidth Distributed Feedback Laser (4) produces is through 10：After 90 shunt OC1 (5) branches, wherein 10% laser can use
In producing long-range light local vibration source, do not discuss herein；It is high that wherein 90% laser simultaneously enters 40G through optical polarization controller PC (6)
Fast broadband intensity modulator MOD；Narrow-linewidth laser is modulated by electric intensity data and is produced two-forty wide-band modulation light, produces here
Two-forty wide-band modulation light can branch as descending optical millimeter wave signal part be this system produce simultaneously optical millimeter wave with remote
Journey light generation source, but only discuss here and produce optical millimeter wave situation；Two-forty wide-band modulation light is by 10：90 shunt OC2
(7) after branch, wherein 90% light wave is amplified into optical filter XTM50 (9) through erbium-doped optical fiber amplifier EDFA 1 (8), filter
Obtain many times of clock spectrum of 40GHz after ripple, this clock spectrum and shunt OC2 separate 10% laser spectrum by adjustable light decay
Subtract after device VOA (10) adjusts through 50：High rate optical millimeter wave is obtained after 50 combiner OC3 (11) combinings；Optical millimeter wave is mixed through KPS
Doped fiber amplifier (12) is amplified into nearly Dispersion Flattened Fiber group Fiber (13) transmission, single spanning distance Transmission Fibers group length
84.7km (is connected by G655 optical fiber 8.47km and Dispersion Flattened Fiber 76.23km and forms)；Optical millimeter wave reaches remote base stations and claps
The electric millimeter-wave signal being formed after frequency.Finally, carry out spectral detection using spectrogrph AQ6319 (14) to signal transmission characteristicses to divide
Analysis is processed.The optical patchcord of connection spectrogrph AQ6319 input port can be directly connected to oscillograph DSA8300 (15) after pulling up
The characteristics such as measurement eye pattern.Other light path links also wire jumper access can measure spectrum, eye pattern information.
Fig. 2 is two-forty wide-band modulation spectrum (a) and its eye pattern (b) obtaining.In Fig. 2 (a), dotted ellipse sign is
The clock spectrum of 40GHz, amplifies to it, filters and can get optical millimeter wave with process such as main ripple conjunction ripples；Fig. 2 (b) is visible, eye pattern
Clearly, eyelid is thin, opening width is good.
Fig. 3 is (KPS pumping current I after KPS erbium-doped fiber amplifier amplifiesP=0.4A) optical millimeter wave.It can be seen that, light milli
Metric wave spectrum is clear, and data center's spectrum is stable with clock spectrum interval to be electricity after 40GHZ (0.319nm), two spectrum beat frequencies
Millimeter wave, carrier frequency 40GHz, data rate 10Gbps；Two spectrum peak value differences are 3.9dBm；Can be by adjusting wave filter
The passband center wavelengths of XTM50, two spectrum intervals can be extended to 20GHz, 30GHz, 50GHz；Adjust erbium-doped fiber amplifier
EDFA1, wave filter XTM50 bandwidth, adjustable attenuator can achieve the regulation change of two spectrum peaks.
Fig. 4 is eye pattern after nearly Dispersion Flattened Fiber transmits 84.7km for the two-forty wide-band modulation light, and Fig. 4 (a) is only
Situation (the I that KPS erbium-doped fiber amplifier amplifiesP=0.4A), Fig. 4 (b) is the situation that only KPS erbium-doped fiber amplifier amplifies
(IP=0.6A).Fig. 4 (a) is visible, the situation (I that only KPS erbium-doped fiber amplifier amplifiesP=0.4A) when, the eye pattern after transmission is relatively
Good, but poorer than eye pattern before transmission, and eyelid is thickening, shake becomes big；Fig. 4 (b) is visible, and Fig. 4 (b) is only KPS Erbium-doped fiber amplifier
Situation (the I that device amplifiesP=0.6A) under, eye pattern and I after transmissionPFig. 4 (a) of=0.4A situation compares, and eyelid is thicker, eye pattern opens
Degree is irregular.This shows, is not that KPS erbium-doped fiber amplifier pumping current is the bigger the better, is not that power is the bigger the better.
The spectrum that Fig. 5 is optical millimeter wave after nearly Dispersion Flattened Fiber transmits 84.7km, is only KPS Erbium-doped fiber amplifier
Situation (the I that device amplifiesP=0.4A) it is seen then that due to the loss of long span optical fiber, after transmission, spectrum is than the spectrum (Fig. 3) before transmission
Slightly worse, optical power down；But remain to keep preferable definition.
Claims (1)
1. a kind of high carrier frequency high rate optical millimeter wave produce with long span Transmission system it is characterised in that：Agilent Error Detector
The 10Gbit/s two-forty NRZ pseudo random pulse sequence electricity data signal that 81250 (1) export is via broadband electric amplifier SHF
803P (2) is amplified into 40G high-speed wideband intensity modulator MOD (3)；The laser that narrow linewidth Distributed Feedback Laser (4) produces is through 10
: after 90 shunt OC1 (5) branches, wherein 10% laser can be used for producing long-range light local vibration source；Wherein 90% laser is through light
Polarization Controller PC (6) simultaneously enters 40G high-speed wideband intensity modulator MOD；Narrow-linewidth laser is modulated by electric intensity data and is produced
Raw two-forty wide-band modulation light, after two-forty wide-band modulation light is by 10: 90 shunt OC2 (7) branches, wherein 90% light wave warp
Erbium-doped optical fiber amplifier EDFA 1 (8) is amplified into optical filter XTM50 (9), obtains many times of clock spectrum of 40GHz after filtering,
This clock spectrum separate with shunt OC2 10% laser spectrum by adjustable optical attenuator VOA (10) adjustment after through 50: 50 conjunction
High rate optical millimeter wave is obtained after device OC3 (11) combining of road；Optical millimeter wave is amplified into through KPS erbium-doped fiber amplifier (12)
Nearly Dispersion Flattened Fiber group Fiber (13) transmission；This nearly Dispersion Flattened Fiber group single spanning distance conveying length 84.7km, by G655 light
Fine 8.47km and Dispersion Flattened Fiber 76.23km connects composition；The electric millimeter that optical millimeter wave is formed after reaching remote base stations beat frequency
Ripple signal；After optical millimeter wave transmits through nearly Dispersion Flattened Fiber group, spectrogrph AQ6319 (14) is accessed by optical patchcord；Using light
Spectrometer AQ6319 (14) carries out spectral detection analyzing and processing to optical millimeter wave signal transmission characteristicses；Connect spectrogrph AQ6319 input
The optical patchcord of port can be directly connected to oscillograph DSA8300 (15) and go to measure eye pattern characteristic after pulling up.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077500.5A CN103840885B (en) | 2014-02-27 | 2014-02-27 | High carrier frequency and high speed light millimeter wave generating and long-span transmission system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410077500.5A CN103840885B (en) | 2014-02-27 | 2014-02-27 | High carrier frequency and high speed light millimeter wave generating and long-span transmission system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103840885A CN103840885A (en) | 2014-06-04 |
| CN103840885B true CN103840885B (en) | 2017-02-08 |
Family
ID=50804072
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201410077500.5A Active CN103840885B (en) | 2014-02-27 | 2014-02-27 | High carrier frequency and high speed light millimeter wave generating and long-span transmission system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN103840885B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110429979B (en) * | 2019-06-21 | 2021-08-10 | 南方科技大学 | Data transmission method, device, equipment and storage medium |
| CN112217572B (en) * | 2020-10-13 | 2023-09-12 | 聊城大学 | Multi-carrier generating system based on two-stage modulation |
| CN112217566B (en) * | 2020-10-22 | 2023-09-08 | 聊城大学 | Remote high-frequency microwave oscillation source system based on single-stage nonlinear spectrum expansion |
| CN112272059B (en) * | 2020-10-29 | 2023-09-29 | 聊城大学 | Remote high-frequency microwave oscillation source system based on two-stage nonlinear spread spectrum |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103095377A (en) * | 2012-12-21 | 2013-05-08 | 聊城大学 | New method and device for generating high speed light millimeter waves of 40GHz and 10Gbit/s |
| CN103475416A (en) * | 2012-06-06 | 2013-12-25 | 中国联合网络通信集团有限公司 | Central station, and method and system for downlink signal processing based on millimeter wave communication |
| CN103490817A (en) * | 2013-09-30 | 2014-01-01 | 中国人民解放军理工大学 | Photonic generation device for high-frequency microwaves and millimeter waves and feeding method |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| KR20080106759A (en) * | 2007-06-04 | 2008-12-09 | 삼성전자주식회사 | Video signal processing apparatus and display apparatus and video signal processing method |
-
2014
- 2014-02-27 CN CN201410077500.5A patent/CN103840885B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103475416A (en) * | 2012-06-06 | 2013-12-25 | 中国联合网络通信集团有限公司 | Central station, and method and system for downlink signal processing based on millimeter wave communication |
| CN103095377A (en) * | 2012-12-21 | 2013-05-08 | 聊城大学 | New method and device for generating high speed light millimeter waves of 40GHz and 10Gbit/s |
| CN103490817A (en) * | 2013-09-30 | 2014-01-01 | 中国人民解放军理工大学 | Photonic generation device for high-frequency microwaves and millimeter waves and feeding method |
Also Published As
| Publication number | Publication date |
|---|---|
| CN103840885A (en) | 2014-06-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103840885B (en) | High carrier frequency and high speed light millimeter wave generating and long-span transmission system | |
| Alavi et al. | W-band OFDM for radio-over-fiber direct-detection link enabled by frequency nonupling optical up-conversion | |
| CN103516429A (en) | W waveband broadband millimeter wave full duplex access method and system based on local oscillation broadcasting | |
| Hamza et al. | Performance enhancement of SCM/WDM-RoF-XGPON system for bidirectional transmission with square root module | |
| Honda et al. | WDM passive optical network managed with embedded pilot tone for mobile fronthaul | |
| Sarup et al. | Performance analysis of an ultra high capacity 1 Tbps DWDM-RoF system for very narrow channel spacing | |
| CN204481832U (en) | A kind of based on light comb and the ROF-PON full duplex system of carrier reuse | |
| Salgals et al. | Hybrid ARoF-WDM PON infrastructure for 5G millimeter-wave interface and broadband internet service | |
| CN103905123B (en) | The adjustable remote local-oscillator source of a kind of Frequency and Amplitude in optical millimeter wave system | |
| CN103684610B (en) | A kind of remote high-frequency microwave generating source in optical millimeter wave system | |
| CN103825659B (en) | A kind of high rate optical millimeter wave is produced and non-relay long span Transmission system | |
| Xiao et al. | High baudrate silicon photonics for the next-generation optical communications | |
| CN208337586U (en) | A kind of fiber radio integration communication system of more scene applications | |
| Niknamfar et al. | Two sub-carriers multiplexed millimeter wave generation using Mach-Zehnder modulators | |
| Omomukuyo et al. | Experimental performance analysis of MB-OFDM Ultra-Wideband Radio-Over-Fiber signals in the 60-GHz band using a commercially-available DFB laser | |
| Chaibi et al. | Directly-modulated IM/DD OFDM transmission over 100-km SSMF using SSB filtering with two silicon micro-ring resonators | |
| Chowdhury et al. | Demonstration of simultaneous all-optical up-conversion of gigabit wireless services at 60-GHz and 64-GHz in converged optical wireless system carried by single wavelength lightwave | |
| CN108521299B (en) | Optical fiber wireless fusion communication system for multi-scene application and signal processing method | |
| CN101217317A (en) | A millimeter wave generation method and system with single phase modulator | |
| Salgals et al. | Research of PAM-4 Modulated WDM-PON Architecture for 5G Millimeter-wave Hybrid Photonics-wireless Interface | |
| Al-Hetar et al. | 10Gbps MMW backhaul network based on FBMC-PON-WDM | |
| Guan et al. | Enabling 5G services in PON with a novel smart edge based on SiP MRM | |
| Santacruz et al. | Probabilistically shaped OFDM for gradual capacity adaptation in 5G ARoF systems | |
| Gutiérrez et al. | All-analogue real-time filter bank OFDM over 50 Km of SSMF using a novel synchronization technique | |
| Cao et al. | Optical OFDM signal generation by optical phase modulator and its application in ROF system |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |