CN102386560B - Broad-band optical chaotic signal source chip structure based on ring laser - Google Patents
Broad-band optical chaotic signal source chip structure based on ring laser Download PDFInfo
- Publication number
- CN102386560B CN102386560B CN 201110189982 CN201110189982A CN102386560B CN 102386560 B CN102386560 B CN 102386560B CN 201110189982 CN201110189982 CN 201110189982 CN 201110189982 A CN201110189982 A CN 201110189982A CN 102386560 B CN102386560 B CN 102386560B
- Authority
- CN
- China
- Prior art keywords
- waveguide
- section
- input
- resonant cavity
- ring laser
- 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
Abstract
The invention discloses a broad-band optical chaotic signal source chip structure based on a ring laser. The structure comprises a ring laser that consists of a waveguide resonant cavity as well as a section of input waveguide and a section of output waveguide which are separately coupled with the waveguide resonant cavity; the input section of the input waveguide and the output section of the output waveguide are arranged on the same side of the waveguide resonant cavity; and the input waveguide comprises the input section, an extension section and a coupling section and the output waveguide comprises an extension section, a coupling section and the output section. The broad-band optical chaotic signal source chip structure disclosed by the invention is characterized by further comprising a single-mode distribution feedback (DFB) laser connected to the input section of the input waveguide and a Bragg grating connected to the extension section of the output waveguide, and the single-mode DFB laser and the Bragg grating are arranged on two sides of the waveguide resonant cavity, respectively. The broad-band optical chaotic signal source chip structure disclosed by the invention has many advantages of low cost, small size, low power consumption, high level of integration, etc.
Description
Technical field
The invention belongs to the optical communication technique field, relate in particular to the optical integrated chip technical field that chaotic signal produces in the security photo-communication technical field.
Background technology
Along with the development of information technology, particularly in the field such as financial, commercial, the confidentiality demand of communication is more and more higher, and information encryption also receives increasing concern.Traditional software encryption technique is based on the complexity of algorithm and the length of key, and the security performance of this method reduces along with the increase of amount of information, and because cryptographic algorithm need to consume the regular hour, enciphering rate is severely limited.Along with quantum-mechanical development, Data Encryption Techniques becomes the new lover of software cryptography, but this encryption method is to adopt the characteristic of light quantum that key is transmitted, and therefore the security performance of Global Information is descended to some extent.Along with the increase to the demand of the secure communication of large capacity and two-forty, above encryption technology can not satisfy people's demand.After the sixties in 20th century, chaos phenomenon was found, the communication mode that uses chaotic carrier to encode in physical layer had improved security performance and the enciphering rate of communication system greatly, becomes the new selection of information encryption.The optical chaos signal has randomlikeness, to the sensitive dependence of initial condition and the characteristics such as broadband power spectrum density of similar noise, so that it is particularly suitable for security photo-communication.At present, the application of optical chaos signal in security photo-communication become that chaos is of paramount importance in using, one of the most promising application.In addition, the autocorrelator trace of optical chaos signal has and is similar to the linear of δ function, this characteristic so that chaotic signal also be widely used in the range laser radar system.At present, correlative study is all carried out in generation and application to the optical chaos signal in countries in the world.
The optical chaos signal by its producing method can be divided into generally that light beam enters, light feedback and three kinds of modes of electro-optical feedback.The external optical injection chaos system refers to increase at laser the outside injection light of a suitable intensity, appropriate frequency, thereby make the injection light of characteristic frequency and certain strength and the interaction of laser cavity inner laser field make laser works at chaos state, produce chaotic signal.The light feedback refers at laser outside, by placing reflection device so that the part of the output light of laser turn back in the original laser through behind the reflection device, by regulating the feedback light intensity, so that the laser works of feedback light disturbance that is subjected to some strength at chaos state, produces chaotic signal.Electro-optical feedback refers to the part of the output light of laser is converted to the signal of telecommunication, is superimposed with the bias current of laser after amplifying time-delay and controls laser and produce chaotic signal.Yet, the bandwidth of the optical chaos signal that above three kinds of modes produce is narrower, and the transmission rate of signal and transmission capacity depend on bandwidth as the optical chaos signal of carrier wave in the chaotic secret optical communication. therefore, the bandwidth that improves the optical chaos signal is the only way of realizing the secure communication of high speed chaotic laser light.
At present, occurred the mode of multiple generation Chaotic Wideband Signal both at home and abroad, the most generally entered the mode that dual mode combines based on light feedback and light beam, and produced the optical chaos signal of broader bandwidth.Wherein, the most commonly utilize the Distributed Feedback Laser of two separation respectively as master and slave laser.A kind of is to set up a speculum outside main Distributed Feedback Laser chamber, the output light of main Distributed Feedback Laser is divided into two parts with light-splitting device, part light reenters in the main Distributed Feedback Laser as feedback light after mirror reflects, be injected into from Distributed Feedback Laser after the adjustment of another part light by optics such as isolator, attenuators, make from Distributed Feedback Laser and be operated in chaos state, the output Chaotic Wideband Signal; Another kind is to set up a speculum outside laser chamber, the light of the main Distributed Feedback Laser output of freely turning round carries out light beam from Distributed Feedback Laser and enters through the adjustment of the optics such as isolator and attenuator is backward, simultaneously, be divided into two parts from the light of Distributed Feedback Laser output through the beam splitting device, part light reenters from Distributed Feedback Laser as feedback light after the reflection of chamber external mirror, and another part light is as output signal.This dual mode can both produce the optical chaos signal of broader bandwidth, but because the system of generation chaotic signal is made of a plurality of independent optics, and therefore existing system configuration for generation of chaotic signal is complicated, poor stability, cost is high.
Summary of the invention
Purpose of the present invention provides a kind of broadband light chaos signal source chip structure based on ring laser for overcoming the deficiencies in the prior art.
Technical scheme of the present invention is: a kind of broadband light chaos signal source chip structure based on ring laser, comprise a ring laser, described ring laser comprise a waveguide resonant cavity and respectively with one section input waveguide and one section output waveguide of waveguide resonant cavity coupling, the input section of described input waveguide and the deferent segment of output waveguide are positioned at the same side of waveguide resonant cavity, described input waveguide comprises the input section, extension and coupled section, described output waveguide comprises extension, coupled section and deferent segment, it is characterized in that, also comprise single mode Distributed Feedback Laser and a Bragg grating that is connected to the output waveguide extension that is connected to the input section of input waveguide, described single mode Distributed Feedback Laser and Bragg grating lay respectively at the both sides of waveguide resonant cavity.
The extension of above-mentioned input waveguide also form one with input waveguide idle end in a certain angle, described idle end in order to the injection light of avoiding input waveguide in the light reflection of extension to injecting the interference of light.
Above-mentioned idle end and input waveguide are 5-10 degree angle.
The waveguide resonant cavity of above-mentioned ring laser is racetrack, annular, polygon or dish.
Another technical scheme of the present invention is: a kind of broadband light chaos signal source chip structure based on ring laser, comprise a ring laser, described ring laser comprise a waveguide resonant cavity and respectively with one section input waveguide and one section output waveguide of waveguide resonant cavity coupling, the input section of described input waveguide and the deferent segment of output waveguide are positioned at the same side of waveguide resonant cavity, described input waveguide comprises the input section, extension and coupled section, described output waveguide comprises extension, coupled section and deferent segment, it is characterized in that, described ring laser also comprises one section feedback waveguide that is positioned at the waveguide resonant cavity opposite side and is coupled with waveguide resonant cavity, and described feedback waveguide comprises extension, reflecting segment and coupled section; Described chip structure also comprises the single mode Distributed Feedback Laser and the Bragg grating that is connected to feedback waveguide reflecting segment that are connected to input waveguide input section, and described single mode Distributed Feedback Laser and Bragg grating lay respectively at the both sides of waveguide resonant cavity.
The extension of the extension of above-mentioned input waveguide, the extension of output waveguide and feedback waveguide also form one with self idle end in a certain angle, described idle end is in order to avoid light to reflect interference to normal light.
Above-mentioned idle end and input waveguide are 5-10 degree angle.
The waveguide resonant cavity of above-mentioned ring laser is racetrack, annular, polygon or dish.
The invention has the beneficial effects as follows: source chip structure of the present invention be used for replacing existing system for generation of chaotic signal, the chaotic signal of this source chip structure generation to be because laser field in the waveguide resonant cavity of the feedback light of the injection light of certain off-resonance frequency and intensity and some strength and ring laser under the nonlinear interaction of ring laser and generation.This chip structure organically integrates ring laser with being used for the Distributed Feedback Laser that light beam enters and the Bragg grating that is used for the light feedback, has the many advantages such as low cost, small size, low-power consumption and high integration.And in this programme, a plurality of functional units connect by waveguide, have effectively reduced loss, can produce high-quality broadband light chaotic signal.
Description of drawings
Fig. 1 is the structural representation of the embodiment of the invention 1.
Fig. 2 is the structural representation of the embodiment of the invention 2.
Description of reference numerals: ring laser 1, waveguide resonant cavity 11, input waveguide 12, the input section 121 of input waveguide, the extension 122 of input waveguide, the coupled section 123 of input waveguide, the idle end 124 of input waveguide, output waveguide 13, the extension 132 of output waveguide, the deferent segment 131 of output waveguide, the coupled section 133 of output waveguide, the idle end 134 of output waveguide, feedback waveguide 14, the extension 141 of feedback waveguide, the reflecting segment 142 of feedback waveguide, the coupled section 143 of feedback waveguide, the idle end 144 of feedback waveguide, single mode Distributed Feedback Laser 2, Bragg grating 3, electrode 4.
Embodiment
The present invention is described further below in conjunction with accompanying drawing and specific embodiment.
Embodiment 1: as shown in Figure 1, the broadband light chaos signal source chip structure based on ring laser of the present embodiment, comprise a ring laser 1, ring laser 1 comprise a waveguide resonant cavity 11 and respectively with one section input waveguide 12 and one section output waveguide 13 of waveguide resonant cavity 11 coupling.Input waveguide 12 according to it with respect to the position of waveguide resonant cavity 11 and the main transmission direction of light, be the input section 121 that is set as this input waveguide by the people, extension 122 and coupled section 123, input section 121 and extension 122 lay respectively at the both ends of whole input waveguide 12, coupled section 123 is positioned at the middle part, input section 121 is injection ports of ring laser 1 exterior light, input section 121 is positioned at an end of whole input waveguide 12 and is positioned at a side of waveguide resonant cavity 11, coupled section 123 is used for and will enters in the optical coupling that input waveguide transmits in the waveguide resonant cavity 11, therefore coupled section 123 is positioned at the middle part of whole input waveguide 12 and tangent with waveguide resonant cavity 11 haply, extension 122 is used for and will injects and the light of failing to enter by coupled section 123 waveguide resonant cavity 11 blazes abroad from input section 121, but when the end face of extension 122 is vertical with light, still have the small part parallel light to be reflected back in the input section 121 in incident light and go, just easy light to normal transmission produces some non-essential interference.Same, output waveguide 13 has also artificially been set the extension 132 of this output waveguide according to its main transmission direction with respect to the position of waveguide resonant cavity 11 and light, deferent segment 131 and coupled section 133, extension 132 and deferent segment 131 lay respectively at the both ends of whole output waveguide 12, coupled section 133 is positioned at the middle part, deferent segment 131 is output ports of ring laser 1 interior lights, deferent segment 131 is positioned at an end of whole output waveguide 13 and is positioned at a side of waveguide resonant cavity 11, coupled section 133 is used for and will enters in the output waveguide 13 in the optical coupling of waveguide resonant cavity 11 transmission, so this coupled section 133 is positioned at the middle part of whole output waveguide 13 and tangent with waveguide resonant cavity 11 haply; The input section 121 of input waveguide 12 and the deferent segment 131 of output waveguide 13 are positioned at the same side of waveguide resonant cavity 11.Simultaneously, this chip structure also comprises the single mode Distributed Feedback Laser 2 of an input section 121 that is connected to input waveguide 12 and the Bragg grating 3 of an extension 132 that is connected to output waveguide 13, single mode Distributed Feedback Laser 2 and Bragg grating 3 lay respectively at the both sides of waveguide resonant cavity 11, the input section 121 of Distributed Feedback Laser 2 and input waveguide 12 has consisted of light beam and has entered passage, 132 of the extensions of Bragg grating 3 and output waveguide 13 have consisted of the light feedback path, input waveguide 12 has consisted of the light input channel with waveguide resonant cavity 11, and output waveguide 13 has consisted of the light output channel with waveguide resonant cavity 11.
Coupled section 133 places of the coupled section 123 of the input waveguide 12 of above-described embodiment 1 and output waveguide 13 also are provided with electrode 4, illustrate among Fig. 1, in addition at single mode Distributed Feedback Laser 2, also be provided with electrode on Bragg grating 3 and the waveguide resonant cavity 11, not shown among Fig. 1, the effect of these electrodes is to add different bias currents in order to the input and output frequency of control and adjusting laser on electrode, coupling ratio and transmission direction, the common practise of being looked those skilled in the art that arranges owing to various electrodes among the present invention, therefore in the present embodiment not the detailed distribution situation to various electrodes describe, but electrode tends to produce known effect according to known mode when it will be appreciated by those of ordinary skill in the art that each component working of chip structure of the present embodiment.
According to above-described embodiment 1 disclosed structure, we know, if the extension of above-mentioned input waveguide 12 122 its end faces are during perpendicular to waveguide, light after the reflection tend to input waveguide 12 in the parallel light of normal transmission, light after the reflection just easily produces some non-essential interference to the light of normal transmission like this, and these interference to be us wish to get rid of.Therefore we can also also form at the extension 122 of above-mentioned input waveguide 12 one with input waveguide 12 idle end 124 in a certain angle, described idle end 124 in order to the injection light of avoiding input waveguide 12 at extension 122 reverberation with injecting parallel light that form to injecting the interference of light, idle end 124 is to be 5-10 degree angle with the angular range of the angle optimum of input waveguide 12, other angle also can, but effect can be poor.
The waveguide resonant cavity 11 of the ring laser 1 of above-described embodiment 1 is racetrack, annular, polygon or dish.Input waveguide 12 and output waveguide 13 are ridge waveguides, its effect is for coupled optical power input and output waveguide resonant cavity 11, input waveguide 12, output waveguide 13 and waveguide resonant cavity 11 edge direct-couplings, the position general tangential, and by electrode 4 control coupling ratios, regulate the power that injects light and feedback light with this.After ring laser powers up, regulate bias current ring laser is produced take counterclockwise as the main luminous state of twocouese, and the change of the optical wavelength of output can realize by the bias current that fine setting is added in electrode.
The single mode DBF laser of above-described embodiment 1 is by electrode drive, and regulates thus its output light wavelength.
The Bragg grating pair incident light of above-described embodiment 1 has the selection reflex, and its reflection wavelength can be regulated by the bias current that change is added on the Bragg grating electrode, is used for providing for ring laser the feedback light of certain frequency.
The work engineering of above-described embodiment 1 is roughly as follows: referring among Fig. 1 shown in the dotted portion, bias current by fine setting Distributed Feedback Laser 2, can regulate Distributed Feedback Laser 2 output light wavelengths, thereby can regulate the frequency difference of the output light of the ring laser 1 that injects light and freely turn round, i.e. off-resonance frequency.The light of Distributed Feedback Laser 2 outputs is injected into input waveguide 12, most of light counterclockwise is injected in the waveguide resonant cavity 11 of ring laser 1 by coupling again, simultaneously, the waveguide resonant cavity 11 of ring laser 1 can be in the luminous state of twocouese under the effect of bias current, the i.e. light of transmission clockwise and counterclockwise, clockwise light becomes the counterclockwise light of transmission after again being coupled into waveguide resonant cavity 11 after 3 reflections of Bragg grating when the coupled section 133 of output waveguide 13 is coupled into output waveguide 13, the light that counterclockwise transmits, interact so that thereby ring laser 1 is operated in chaos state formation optical chaos signal by the light of Distributed Feedback Laser 2 injections with by the light three who enters again waveguide resonant cavity 11 after 3 reflections of Bragg grating, this optical chaos signal is coupled into deferent segment 131 outputs of output waveguide 13 by the coupled section 133 of output waveguide 13 at ring laser 1, input waveguide 12 interior fractions do not have the light of coupling then to transfer out input waveguide 12 by extension 122.When the chip structure of the present embodiment works, namely constantly repeat said process.
The power of the injection light of Distributed Feedback Laser 2 and the feedback light of Bragg grating can be regulated by the electrode of coupled section, under the nonlinear interaction of the laser field that the waveguide resonant cavity 11 of the injection light with certain off-resonance frequency, certain power and feedback light and ring laser 1 produces, make ring laser 1 be operated in chaos state output Chaotic Wideband Signal; And adjusting is injected the off-resonance frequency of light and is injected light, feedback light power, can make the bandwidth maximum of the chaotic signal of ring laser output.
Embodiment 2: owing to the relative end of Bragg grating 3 among the embodiment 1 at the output 131 of output waveguide 13, can cause certain interference to the optical chaos signal of output waveguide 13 outputs, the quality of the optical chaos signal of impact output through the feedback light that has part not to be coupled into waveguide resonant cavity 11 after 3 reflections of Bragg grating.Therefore we need to separate light feedback path and light output channel, avoid not being coupled into the feedback light of waveguide resonant cavity 11 to the interference of normal output light.
As shown in Figure 2, in order to overcome the deficiency of embodiment 1, the present embodiment improves in the structure of embodiment 1, the main part of changing is to have increased by one section to be positioned at waveguide resonant cavity 11 and to have increased by one section feedback waveguide 14 with waveguide resonant cavity 11 couplings with respect to the opposite side of Distributed Feedback Laser 2 in ring laser 1, and this feedback waveguide 14 is to be set as be positioned at extension 141, the reflecting segment 142 of another end and the coupled section 143 at middle part of feeding back waveguide 14 one ends with respect to the position of waveguide resonant cavity 11 and the main transmission direction of light by the people according to it.Coupled section 143 be used for will waveguide resonant cavity 11 clockwise transmission optical coupling enter waveguide resonant cavity 11, therefore coupled section 143 is tangent with waveguide resonant cavity 11 haply, reflecting segment 142 is connected with Bragg grating 3 and is used for and will goes out from the light change direction back reflection that waveguide resonant cavity 11 is coupled into, and again is coupled into the feedback light that waveguide resonant cavity 11 becomes counterclockwise transmission by coupled section 143.
Based on reason similarly to Example 1, the coupled section 123 of above-mentioned input waveguide 12, coupled section 143 places of the coupled section 133 of output waveguide 13 and feedback waveguide 14 also are provided with electrode 4, illustrate among Fig. 2, in addition at single mode Distributed Feedback Laser 2, also be provided with electrode on Bragg grating 3 and the waveguide resonant cavity 11, not shown among Fig. 2, the effect of these electrodes is to add different bias currents in order to the input and output frequency of control and adjusting laser on electrode, coupling ratio and transmission direction, the common practise of being looked those skilled in the art that arranges owing to various electrodes among the present invention, therefore in the present embodiment not the detailed distribution situation to various electrodes describe, but electrode tends to produce known effect according to known mode when it will be appreciated by those of ordinary skill in the art that each component working of chip structure of the present embodiment.
According to disclosed structure in above-described embodiment 2, we know, based on reason similarly to Example 1, for the extension 122 that prevents input waveguide 12 in the present embodiment, the extension 132 of output waveguide 13, light behind the vertical end face reflection of the extension 141 of feedback waveguide 14 is to the non-essential interference of the light of normal transmission in each self-waveguide, therefore can be at extension 122,132,141 places form one with waveguide idle end 124 in a certain angle, 134,144, idle end 124,134,144 with the angular range of the angle optimum of each waveguide be to be 5-10 degree angle, other angle also can, but effect can be poor.
The waveguide resonant cavity 11 of the ring laser 1 of above-described embodiment 2 is racetrack, annular, polygon or dish.Input waveguide 12, output waveguide 13 and feedback waveguide 14 are ridge waveguides, its effect is for coupled optical power input and output waveguide resonant cavity 11, input waveguide 12, output waveguide 13 and feedback waveguide 14 and waveguide resonant cavity 11 edge direct-couplings, the position general tangential, and by electrode 4 control coupling ratios, regulate the power that injects light and feedback light with this.After ring laser powers up, regulate bias current and can make ring laser be operated in the above luminous state of twocouese of threshold value, and the change of the optical wavelength of output can realize by the bias current that fine setting is added in electrode.
Above-described embodiment 2 single mode DBF lasers are by electrode drive, and regulate thus its output light wavelength.
Above-described embodiment 2Bragg grating pair incident light has the selection reflex, and its reflection wavelength can be regulated by the bias current that change is added on the Bragg grating electrode, is used for providing for ring laser the feedback light of certain frequency.
The work engineering of above-described embodiment 2 is roughly as follows: referring among Fig. 2 shown in the dotted portion, bias current by fine setting Distributed Feedback Laser 2, can regulate Distributed Feedback Laser 2 output light wavelengths, thereby can regulate the frequency difference of the output light of the ring laser 1 that injects light and freely turn round, i.e. off-resonance frequency.The light of Distributed Feedback Laser 2 outputs is injected into input waveguide 12, most of light counterclockwise is injected in the waveguide resonant cavity 11 of ring laser 1 by coupling again, simultaneously, the waveguide resonant cavity 11 of ring laser 1 can be in the luminous state of twocouese under the effect of bias current, the i.e. light of transmission clockwise and counterclockwise, clockwise light becomes the counterclockwise light of transmission after again being coupled into waveguide resonant cavity 11 after 3 reflections of Bragg grating when the coupled section 143 of feedback waveguide 14 is coupled into feedback waveguide 14, the light that counterclockwise transmits, interact so that thereby ring laser 1 is operated in chaos state formation optical chaos signal by the light of Distributed Feedback Laser 2 injections with by the light three who enters again waveguide resonant cavity 11 after 3 reflections of Bragg grating, this optical chaos signal is coupled into deferent segment 131 outputs of output waveguide 13 by the coupled section 133 of output waveguide 13 at ring laser 1, input waveguide 12 interior fractions do not have the light of coupling then to transfer out input waveguide 12 by extension 122.When the chip structure of the present embodiment works, namely constantly repeat said process.
The power of the injection light of Distributed Feedback Laser 2 and the feedback light of Bragg grating 3 can be regulated by the coupled section electrode.Under the nonlinear interaction of the laser field that the waveguide resonant cavity 11 of the injection light with certain off-resonance frequency, certain power and feedback light and ring laser 1 produces, make ring laser 1 be operated in chaos state output Chaotic Wideband Signal; And adjusting is injected the off-resonance frequency of light and is injected light, feedback light power, can make the bandwidth maximum of the chaotic signal of ring laser output.After the weak point that has overcome embodiment 1, embodiment 2 can produce the chaotic signal of better quality.
Those of ordinary skill in the art will appreciate that, embodiment described here is in order to help reader understanding's principle of the present invention, should to be understood to that protection scope of the present invention is not limited to such special statement and embodiment.Those of ordinary skill in the art can make various other various concrete distortion and combinations that do not break away from essence of the present invention according to these technology enlightenments disclosed by the invention, and these distortion and combination are still in protection scope of the present invention.
Claims (8)
1. broadband light chaos signal source chip structure based on ring laser, comprise a ring laser, described ring laser comprise a waveguide resonant cavity and respectively with one section input waveguide and one section output waveguide of waveguide resonant cavity coupling, the input section of described input waveguide and the deferent segment of output waveguide are positioned at the same side of waveguide resonant cavity, described input waveguide comprises the input section, extension and coupled section, described output waveguide comprises extension, coupled section and deferent segment, it is characterized in that, also comprise single mode Distributed Feedback Laser and a Bragg grating that is connected to the output waveguide extension that is connected to the input section of input waveguide, described single mode Distributed Feedback Laser and Bragg grating lay respectively at the both sides of waveguide resonant cavity.
2. the broadband light chaos signal source chip structure based on ring laser according to claim 1, it is characterized in that, the extension of described input waveguide also form one with input waveguide idle end in a certain angle, described idle end in order to the injection light of avoiding input waveguide in the light reflection of extension to injecting the interference of light.
3. the broadband light chaos signal source chip structure based on ring laser according to claim 2 is characterized in that, described idle end and input waveguide are 5-10 degree angle.
4. the broadband light chaos signal source chip structure based on ring laser according to claim 1 is characterized in that, the waveguide resonant cavity of described ring laser is racetrack, annular, polygon or dish.
5. broadband light chaos signal source chip structure based on ring laser, comprise a ring laser, described ring laser comprise a waveguide resonant cavity and respectively with one section input waveguide and one section output waveguide of waveguide resonant cavity coupling, the input section of described input waveguide and the deferent segment of output waveguide are positioned at the same side of waveguide resonant cavity, described input waveguide comprises the input section, extension and coupled section, described output waveguide comprises extension, coupled section and deferent segment, it is characterized in that, described ring laser also comprises one section feedback waveguide that is positioned at the waveguide resonant cavity opposite side and is coupled with waveguide resonant cavity, and described feedback waveguide comprises extension, reflecting segment and coupled section; Described chip structure also comprises the single mode Distributed Feedback Laser and the Bragg grating that is connected to feedback waveguide reflecting segment that are connected to input waveguide input section, and described single mode Distributed Feedback Laser and Bragg grating lay respectively at the both sides of waveguide resonant cavity.
6. the broadband light chaos signal source chip structure based on ring laser according to claim 5, it is characterized in that, the extension of the extension of described input waveguide, the extension of output waveguide and feedback waveguide also form one with self idle end in a certain angle, described idle end is in order to avoid light to reflect interference to normal light.
7. the broadband light chaos signal source chip structure based on ring laser according to claim 6 is characterized in that, described idle end and input waveguide are 5-10 degree angle.
8. the broadband light chaos signal source chip structure based on ring laser according to claim 5 is characterized in that, the waveguide resonant cavity of described ring laser is racetrack, annular, polygon or dish.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189982 CN102386560B (en) | 2011-07-07 | 2011-07-07 | Broad-band optical chaotic signal source chip structure based on ring laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201110189982 CN102386560B (en) | 2011-07-07 | 2011-07-07 | Broad-band optical chaotic signal source chip structure based on ring laser |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN102386560A CN102386560A (en) | 2012-03-21 |
| CN102386560B true CN102386560B (en) | 2013-04-03 |
Family
ID=45825685
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201110189982 Expired - Fee Related CN102386560B (en) | 2011-07-07 | 2011-07-07 | Broad-band optical chaotic signal source chip structure based on ring laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN102386560B (en) |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110048303A (en) * | 2019-03-18 | 2019-07-23 | 深圳市速腾聚创科技有限公司 | A kind of laser and Optical Maser System |
| CN110740030B (en) * | 2019-09-23 | 2022-07-05 | 太原理工大学 | Integrated chaotic signal generator with double-microring waveguide structure |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789860A (en) * | 2010-01-27 | 2010-07-28 | 江苏技术师范学院 | Chaotic signal generator |
| CN101977065A (en) * | 2010-10-13 | 2011-02-16 | 太原理工大学 | Ultra-wide band (UWB) chaotic signal generator |
| CN201830201U (en) * | 2010-10-27 | 2011-05-11 | 江苏技术师范学院 | Broadband chaotic signal oscillator |
| CN202217910U (en) * | 2011-07-07 | 2012-05-09 | 电子科技大学 | Broadband optical chaos signal source chip structure based on ring laser |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010092904A (en) * | 2008-10-03 | 2010-04-22 | Nec Corp | Optical module |
-
2011
- 2011-07-07 CN CN 201110189982 patent/CN102386560B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101789860A (en) * | 2010-01-27 | 2010-07-28 | 江苏技术师范学院 | Chaotic signal generator |
| CN101977065A (en) * | 2010-10-13 | 2011-02-16 | 太原理工大学 | Ultra-wide band (UWB) chaotic signal generator |
| CN201830201U (en) * | 2010-10-27 | 2011-05-11 | 江苏技术师范学院 | Broadband chaotic signal oscillator |
| CN202217910U (en) * | 2011-07-07 | 2012-05-09 | 电子科技大学 | Broadband optical chaos signal source chip structure based on ring laser |
Also Published As
| Publication number | Publication date |
|---|---|
| CN102386560A (en) | 2012-03-21 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN102280814B (en) | Wideband optical chaotic signal source chip structure based on annular laser | |
| US9787050B2 (en) | Tunable narrow-linewidth single-frequency linear-polarization laser device | |
| Jiang et al. | Physically enhanced secure wavelength division multiplexing chaos communication using multimode semiconductor lasers | |
| CN109873697A (en) | A kind of chaos encryption safe communication system with electro-optic phase and intensity feedback | |
| US6014390A (en) | Tunable transmitter with Mach-Zehnder modulator | |
| CN106602395A (en) | Ultra-wideband random fiber laser based on multi-wavelength pumping | |
| CN108963751B (en) | Injection-locked semiconductor laser | |
| CN202206028U (en) | Broadband optical chaos signal source chip structure based on annular laser | |
| CN202217910U (en) | Broadband optical chaos signal source chip structure based on ring laser | |
| CN103811989A (en) | Optical fiber coupling acousto-optic Q switch for high power pulse fiber laser | |
| CN203466821U (en) | Tunable optical chaotic signal generating device | |
| CN104143757A (en) | Wavelength tunable narrow linewidth light source based on DBR laser | |
| CN102386560B (en) | Broad-band optical chaotic signal source chip structure based on ring laser | |
| CN103501200B (en) | Tunable optical chaotic signal generation device and method | |
| CN105515665B (en) | Full optical buffer based on excited Brillouin gain polarization characteristic | |
| CN110071412B (en) | Bidirectional communication system based on injection type chaotic vertical surface laser | |
| JP2017098342A (en) | Wavelength multiplexing optical transmitter | |
| CN110149208B (en) | Transmitting end coding module of integrated time phase coding quantum key distribution system | |
| WO2015085544A1 (en) | Laser | |
| CN101325312B (en) | High speed modulation semiconductor laser | |
| CN216016875U (en) | Quantum key distribution system based on phase encoding | |
| CN206558873U (en) | A kind of ultra wide band random fiber laser based on multi wavelength pumping | |
| CN107153312B (en) | Passive all-optical logic gate and polarization converter | |
| US7433561B2 (en) | All-optical phase, wavelength, and polarization-insensitive wavelength converters | |
| CN101325313B (en) | High speed modulation semiconductor laser |
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 | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130403 Termination date: 20150707 |
|
| EXPY | Termination of patent right or utility model |