CN101977065B - Ultra-wide band (UWB) chaotic signal generator - Google Patents
Ultra-wide band (UWB) chaotic signal generator Download PDFInfo
- Publication number
- CN101977065B CN101977065B CN 201010508943 CN201010508943A CN101977065B CN 101977065 B CN101977065 B CN 101977065B CN 201010508943 CN201010508943 CN 201010508943 CN 201010508943 A CN201010508943 A CN 201010508943A CN 101977065 B CN101977065 B CN 101977065B
- Authority
- CN
- China
- Prior art keywords
- laser
- optical circulator
- light
- port
- chaotic
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Lasers (AREA)
Abstract
The invention discloses an ultra-wide band (UWB) chaotic signal generator. An annular structure system is composed of a drive laser, a response laser, a driven laser and an optical circulator; the output of one of the three lasers is injected into another laser through the optical circulator; the output light of the drive laser enters an Er-doped fiber amplifier through the optical circulator and is amplified, then the polarization state of the light is controlled by a polarization controller, and the light is injected into the response laser through a port of the optical circulator; the output light of the response laser enters the Er-doped fiber amplifier through the optical circulator and is amplified; the amplified light goes through a port of an optical fiber coupler, the polarization state of one part of the light is controlled by the polarization controller, and then the light is injected into the driven laser through the port of the optical circulator; the output light of the driven laser goes through the port of the optical circulator and is processed by an attenuator; the polarization state of the light is controlled by the polarization controller, and the light is injected into the drive laser through the port of the optical circulator; and the process is performed circularly and finally the wide-band chaotic laser is generated and output from one end of an optical coupler.
Description
Technical field
The present invention relates to a kind of Chaotic Wideband Signal generator, specifically, is a kind of device that utilizes the semiconductor laser ring to produce the ultra wide band chaotic laser signal, the field such as be applied to optical communication, radar detection, laser ranging and maintain secrecy.
Background technology
Semiconductor laser can produce chaotic laser light under additional disturbance (light feeds back, light beam enters or electro-optical feedback). and the numerous application such as chaotic secret communication, chaotic laser light radar, quick randomizer, relevant chaos light time domain reflectometer and optical coherence tomography based on chaotic laser light are proposed in succession.Bandwidth is to weigh the important indicator of chaotic laser light quality, it is directly determining chaotic laser light at the application quality of different field, is determining the key technical index such as certainty of measurement, produce random number speed of signal rate, chaotic laser light radar and relevant chaos light time domain reflectometer that chaotic secret communication can be hidden such as: bandwidth.
Because be subject to the relaxation oscillation frequency of semiconductor laser, the bandwidth of traditional chaotic laser light is for only being the GHz magnitude, this will seriously limit the application of chaotic laser light.Therefore, the chaotic laser light signal of generation ultra broadband is study hotspot and the difficult point in present chaotic laser light field.The people such as Wang Anbang utilize outer light beam to enter and light feedback associating disturbance effect, make the bandwidth of semiconductor laser bring up to 16.7GHz, inject modulation (the IEEE Photonics Technology Letters that light frequency is realized the bandwidth of chaos light signal by changing simultaneously, Vol.20, p.1663,2008); The people such as Hiroyuki Someya find the chaos light beam is entered than the broadband chaotic laser light that can produce 12GHz in the lower slightly semiconductor laser of its light frequency (Optics Express, Vol.17, p.19536,2009); The people such as Kristine E.Callan have utilized ultrafast pulse semiconductor laser and optoelectronic oscillation ring to combine to have produced the above smooth broadband chaos of 8GHz (Phys.Rev.Lett.Vol.104, p.113901,2010).
Although utilize present prior art, can be with the highest the carrying to 16.7GHz of chaotic laser light bandwidth of semiconductor laser output, but the development along with science and technology, especially the fast development of all optical communication, full light random number and high accuracy remote navigation system, people are in the urgent need to the chaotic laser light of high bandwidth more.
Summary of the invention
The purpose of this invention is to provide the smooth chaotic signal generating device of a kind of ultra broadband, realize that bandwidth surpasses the output of the smooth Chaotic Wideband Signal of 40GHz (frequency spectrograph measuring range); Problem of the present invention is the semiconductor laser loop configuration of design frequency off resonance coupling, polarization state coupling, makes three lasers under the disturbance of suitable mutual injection, produces the smooth chaotic laser light signal of ultra broadband.
A kind of ultra wide band chaotic signal generator provided by the present invention, its described generator are by drive laser, respond laser and consist of a loop configuration system from laser by optical circulator I, optical circulator II and optical circulator III; Wherein:
The output light of described drive laser via optical circulator I to erbium-doped fiber amplifier I, control its polarization state by Polarization Controller I after amplifying, port III through optical circulator II is injected into the response laser, the output light of response laser through the port IV of optical circulator II to erbium-doped fiber amplifier II, amplification is by the port V of fiber coupler, part light is controlled its polarization state by Polarization Controller II and is injected into from laser through the port VI of optical circulator III, from the output of laser through the port VII of optical circulator III through attenuator, control its polarization state by Polarization Controller III and be injected into drive laser by the port VIII of optical circulator I, move in circles, produce the broadband chaotic laser light and exported by fiber coupler one end.
A kind of ultra wide band chaotic signal generation apparatus provided by the invention, this device can realize that bandwidth surpasses 40GHz, frequency spectrum flatness less than the ultra wide band chaotic signal of 5dB, are the widest chaotic signals of bandwidth that at present experiment produces.The ultra wide band chaotic laser signal that utilizes the present invention to produce the transmission rate of optical communication can be increased to 40GHz, and the resolution of laser ranging will be increased to the mm order of magnitude, and random number speed reaches 20GHz.
Description of drawings
Fig. 1 is ultra wide band chaotic signal generator structural representation of the present invention;
Fig. 2 utilizes the Chaotic Wideband Signal of the 27GHz that the present invention produces;
Fig. 3 utilizes the Chaotic Wideband Signal of the 40GHz that the present invention produces.
Among Fig. 1: 1: drive laser; 2: the response laser; 3: from laser; 4: optical circulator; 5: erbium-doped fiber amplifier; 6: Polarization Controller; 7: optical circulator; 8: erbium-doped fiber amplifier; 9: fiber coupler; 10: Polarization Controller; 11: optical circulator; 12: attenuator; 13: Polarization Controller.
Embodiment
The below is further detailed:
As shown in Figure 1, the present invention includes drive laser 1, response laser 2, consist of from laser 3, optical circulator 4, erbium-doped fiber amplifier 5, Polarization Controller 5, fiber coupler 9 and attenuator 12.Wherein, drive laser 1, response laser 2 and be the dfb semiconductor laser from laser 3.
Implement the smooth chaotic signal generating device of a kind of ultra broadband of the present invention, be with the output light of drive laser 1 via optical circulator 4 to erbium-doped fiber amplifier 5, control its polarization states by Polarization Controller 6 after suitably amplifying, be injected into response laser 2 through the port III of optical circulator 7, because the effect of beat frequency, can produce centre frequency and be higher than the vibration that 20GHz and width are about 2GHz, and the centre frequency of vibration always the frequency detuning with two lasers is identical; This chaotic signal injects from laser 3 through erbium-doped fiber amplifier 8, fiber coupler 9, Polarization Controller 10 and optical circulator 11, because less with the frequency detuning of drive laser 1 from laser 3, the light that is injected into drive laser 1 from laser 3 can make the relaxation oscillation of drive laser 1 strengthen, the centre frequency of relaxation oscillation is about 5GHz, and width is about 7GHz.Frequency detuning between laser (Δ v
1j=v
1-v
j, j=2,3) realize by the working temperature of adjusting semiconductor laser.Need stronger polarised light owing to utilize frequency detuning to produce the higher-order of oscillation, thus corresponding laser 2 and all need to amplify with erbium-doped fiber amplifier from the injection light of laser 3, and produce polarised light with Polarization Controller.After complete semiconductor laser ring formed, the existing oscillationg component of previous laser can make the vibration of a rear laser be strengthened at the same frequency place.Like this, the oscillator signal of different frequency will constantly circulate in the laser ring and be strengthened, and finally produces smooth Chaotic Wideband Signal, by the end output of optical coupler 9.
The output that above-mentioned Chaotic Wideband Signal generator is three semiconductor lasers all is injected among the next laser via optical circulator. inject the polarisation of light attitude and all control by Polarization Controller. be injected into corresponding laser 2 and from the luminous power of laser 3 all respectively by erbium-doped fiber amplifier control, and the luminous intensity that is injected into drive laser 1 is controlled by attenuator 12. respond laser 2 and from frequency detuning (the Δ v of laser 3 with respect to drive laser 1
1j=v
1-v
j, j=2,3) and realize that by the working temperature of adjusting semiconductor laser the Chaotic Wideband Signal that produces at last is by the end output of fiber coupler 9, when the wavelength of drive laser 1 is 1554.082nm, Δ v
12=25.3～26GHz; 0GHz＞Δ v
13During＞-4GHz, utilize optical circulator 7 of the present invention to realize the output of bandwidth for the ultra wide band chaotic signal of 27GHz, experimental result is seen accompanying drawing 2; When the wavelength of drive laser 1 is 1554.082nm, Δ v
12=33.0～36.0GHz; 0GHz＞Δ v
13During＞-6GHz, utilize optical circulator 7 of the present invention to realize the output of bandwidth for the ultra wide band chaotic signal of 40GHz, experimental result is seen accompanying drawing 3.Accompanying drawing 2 and accompanying drawing 3 show: the smooth chaotic signal generating device of a kind of ultra broadband that utilizes the present invention to propose, can produce flatness less than the ultra wide band chaotic laser signal of 5dB, and maximum bandwidth is 40GHz or higher.
Claims (1)
1. ultra wide band chaotic signal generator, its described generator be by drive laser (1), response laser (2) and from laser (3) by optical circulator I (4), optical circulator II (7) and loop configuration system of optical circulator III (11) formation; Wherein:
The output light of described drive laser (1) arrives erbium-doped fiber amplifier I (5) via optical circulator I (4), control its polarization state by Polarization Controller I (6) after amplifying, be injected into response laser (2) through the port III of optical circulator II (7), the output light of response laser (2) through the port IV of optical circulator II (7) to erbium-doped fiber amplifier II (8), amplification is by the port V of fiber coupler (9), part light is controlled its polarization state by Polarization Controller II (10) and is injected into from laser (3) through the port VI of optical circulator III (11), from the output of laser (3) through the port VII of optical circulator III (11) through attenuator (12), control its polarization state by Polarization Controller III (13) and be injected into drive laser (1) by the port VIII of optical circulator I (4), move in circles, produce the broadband chaotic laser light and exported by fiber coupler (9) one ends.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010508943 CN101977065B (en) | 2010-10-13 | 2010-10-13 | Ultra-wide band (UWB) chaotic signal generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201010508943 CN101977065B (en) | 2010-10-13 | 2010-10-13 | Ultra-wide band (UWB) chaotic signal generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN101977065A CN101977065A (en) | 2011-02-16 |
| CN101977065B true CN101977065B (en) | 2013-05-01 |
Family
ID=43576918
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201010508943 Expired - Fee Related CN101977065B (en) | 2010-10-13 | 2010-10-13 | Ultra-wide band (UWB) chaotic signal generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101977065B (en) |
Families Citing this family (13)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102386560B (en) * | 2011-07-07 | 2013-04-03 | 电子科技大学 | Broad-band optical chaotic signal source chip structure based on ring laser |
| CN102280815B (en) * | 2011-07-16 | 2012-08-08 | 太原理工大学 | Optical feedback chaos laser |
| CN102506917A (en) * | 2011-12-03 | 2012-06-20 | 太原理工大学 | Optical fiber sensing device for optical fiber chaos laser device and method thereof |
| CN102594544B (en) * | 2012-01-04 | 2015-01-14 | 太原理工大学 | Spectral broadening device for chaotic laser signals and method thereof |
| CN102882127B (en) * | 2012-09-19 | 2014-04-02 | 大连理工大学 | Photoinjection-type chaotic photonic integration device and preparation method thereof |
| CN103368653B (en) * | 2013-07-22 | 2016-02-17 | 太原理工大学 | A kind of production method of Chaotic Wideband Signal of similar white noise and device |
| CN105005052B (en) * | 2015-06-05 | 2017-06-09 | 太原理工大学 | Light carries ultra wide band remote microwave photon chaos MIMO imaging radars |
| CN107086904B (en) * | 2017-05-23 | 2023-05-23 | 西南大学 | Broadband chaotic signal generating device with tunable center wavelength |
| CN108199259B (en) * | 2017-12-25 | 2020-01-17 | 武汉光迅科技股份有限公司 | Combined disturbance type chaotic laser signal generator and using method thereof |
| CN108155559B (en) * | 2017-12-25 | 2020-06-30 | 武汉电信器件有限公司 | Chaotic semiconductor laser based on random optical feedback and use method thereof |
| CN110426067A (en) * | 2019-07-25 | 2019-11-08 | 武汉钜风科技有限公司 | A kind of Brillouin's time-domain analysis system and method based on multi-core optical fiber |
| CN110850129B (en) * | 2019-10-18 | 2021-11-26 | 广东工业大学 | Broadband-controllable photon millimeter wave noise signal generator and signal generating method thereof |
| CN110632764B (en) * | 2019-10-31 | 2021-05-25 | 太原理工大学 | Chaotic light generating device based on TOAD ring |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892732A (en) * | 2005-07-05 | 2007-01-10 | 三星电机株式会社 | Chaotic signal generator for ultra wide band communication system |
| CN101520509A (en) * | 2009-02-13 | 2009-09-02 | 上海大学 | Method for comparatively measuring range of interframe of chaotic light time domain waveform |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7937427B2 (en) * | 2007-04-19 | 2011-05-03 | Harris Corporation | Digital generation of a chaotic numerical sequence |
-
2010
- 2010-10-13 CN CN 201010508943 patent/CN101977065B/en not_active Expired - Fee Related
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1892732A (en) * | 2005-07-05 | 2007-01-10 | 三星电机株式会社 | Chaotic signal generator for ultra wide band communication system |
| CN101520509A (en) * | 2009-02-13 | 2009-09-02 | 上海大学 | Method for comparatively measuring range of interframe of chaotic light time domain waveform |
Also Published As
| Publication number | Publication date |
|---|---|
| CN101977065A (en) | 2011-02-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101977065B (en) | Ultra-wide band (UWB) chaotic signal generator | |
| Luo et al. | Tunable and switchable dual-wavelength passively mode-locked Bi-doped all-fiber ring laser based on nonlinear polarization rotation | |
| CN110600973B (en) | Device and method for generating broadband chaotic laser based on nonlinear optical fiber active light feedback | |
| CN103490272B (en) | Amplitude modified frequency is adjustable 2um SF pulse optical fibre laser | |
| CN104051955B (en) | Tunable photoproduction microwave source based on semiconductor double-module laser | |
| CN103001118A (en) | Gain narrowing controlled all-fiber laser amplifier for high-power picosecond pulses | |
| CN108199259B (en) | Combined disturbance type chaotic laser signal generator and using method thereof | |
| CN102594544B (en) | Spectral broadening device for chaotic laser signals and method thereof | |
| Abedin et al. | Slow light generation in singlemode Er-doped tellurite fibre | |
| Alghamdi et al. | Application of black phosphorus for pulse generation in erbium-doped fiber laser | |
| Ge et al. | High-power all-fiber 1.0/1.5 μm dual-band pulsed MOPA source | |
| Sun et al. | 53.3 W visible-waveband extra high power supercontinuum all-fiber laser | |
| Wang et al. | Experimental observation of dark soliton emitting with spectral sideband in an all-fiber ring cavity laser | |
| Li et al. | Tunable multiwavelength Brillouin-erbium ring-cavity fiber laser with short-length photonic crystal fiber | |
| CN203056361U (en) | All-fiber pulsed laser system with visible wave band | |
| CN103166093B (en) | Multi-band nonlinear optical fiber amplification system | |
| CN203014158U (en) | Gain narrowing controlled full fiber high power picosecond pulse laser amplifier | |
| Jin et al. | Broadband supercontinuum generation based on ytterbium-doped fiber amplifier seeded by self-pulsed amplified spontaneous emission source | |
| Wang et al. | High-pulse-energy all-normal-dispersion Yb-doped fiber laser based on nonlinear polarization evolution | |
| Ye et al. | Multi-wavelength mode-locked Er/Yb Co-doped fiber laser with square nano-second pulse output | |
| CN103166095A (en) | All-fiber pulse laser system with visible waveband | |
| CN110632764B (en) | Chaotic light generating device based on TOAD ring | |
| Zhang et al. | Chaotic light generation and its application in communication, sensor, radar | |
| Wang et al. | SBS slow light in high nonlinearity photonic crystal fiber | |
| Chen et al. | Nanosecond square pulse fiber laser based on the nonlinear amplifying loop mirror |
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 | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130501 Termination date: 20131013 |