CN205609949U - Adjustable frequency spaced optical frequency comb generation system based on encircle resonant cavity a little - Google Patents
Adjustable frequency spaced optical frequency comb generation system based on encircle resonant cavity a little Download PDFInfo
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- CN205609949U CN205609949U CN201620194919.3U CN201620194919U CN205609949U CN 205609949 U CN205609949 U CN 205609949U CN 201620194919 U CN201620194919 U CN 201620194919U CN 205609949 U CN205609949 U CN 205609949U
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Abstract
The utility model relates to an adjustable frequency spaced optical frequency comb generation system based on encircle resonant cavity a little aim at the current optical frequency comb generation system poor stability of solution, and only adjustable drawback in several free spectral range is fixed perhaps to the frequency interval of optical frequency comb. This system by optical amplifier, optical isolator, polarization controller, upload / the download type encircles the resonant cavity a little, light beam splitter and adjustable dual wavelength wave filter pass through closed optic fibre annular chamber that single mode fiber establishes ties and forms, wherein, the propagation path of laser signal along the optic fibre annular chamber in, light beam splitter be located upload / the download type encircles after the resonant cavity a little. Adopt the utility model provides a system can produce the free adjustable optical frequency of frequency interval comb, has eliminated the tradition simultaneously and based on the self termination phenomenon of encircling the resonant cavity a little, has had easy operation, has adjusted advantage convenient, the easily system integration.
Description
Technical field
This utility model relates to a kind of frequency comb and produces system (device), is specifically related to a kind of Ke Er frequency comb based on non-linear micro-ring resonant cavity and produces system (device), it is possible to produces the adjustable frequency comb of frequency interval.
Background technology
Frequency comb is the spectrum of the comb form of a kind of discrete, equifrequent spacing.Frequency comb, just as one " light chi ", can be used to optical frequency carries out extremely accurate measurement so that time standard changes to optical domain from microwave, and its degree of accuracy can improve more than four orders of magnitude.Additionally, frequency comb has particularly important application in terms of precise optical metering, optical communication system, any waveform generator, optics atomic clock, sensor-based system and photonic signal processing.
Frequency comb is produced by ultrashort pulse mode-locked laser traditionally, and the frequency spectrum of mode locking pulse interval to each other is the most equal with the repetition rate of laser instrument, but the chamber that its frequency interval is limited to mode-locked laser is long, typically smaller than 10GHz.Use light modulation techniques can produce the frequency interval frequency comb more than 100GHz, but its frequency interval is limited to electrooptic modulator and radio-frequency signal generator, and along with the lifting of frequency, its cost, by extremely acute growth, is unfavorable for sizable application.And Ke Er frequency comb of based on micro-ring resonant cavity has congenital advantage in terms of Gao Zhongying frequency comb, just compensate for the deficiency of tradition frequency comb technology.Meanwhile, Ke Er frequency comb based on micro-ring resonant cavity meets the Modern Optics Technology trend to miniaturization Yu integrated development, has extremely wide application prospect.Research about Ke Er frequency comb at present has been achieved for many breakthroughs, based on MgF2, SiO2, AlN, SiN, Si, CaF2Have been reported etc. the frequency comb generation system of the high q-factor microcavity of various integreted phontonics platforms.
The generation of the Ke Er frequency comb of optically-based micro-ring resonant cavity generally uses external resonant to inject pump light and realizes, change due to the resonance wavelength meeting variation with temperature of micro-ring resonant cavity, therefore typically require and carry out temperature control, until pump light frequency is consistent with the resonance wavelength of resonator cavity.But the coupling efficiency making pump light is declined by the fluctuation of the slow change of ambient temperature or pumping light power, thus it is produced from termination phenomenon.For uploading/micro-ring resonant cavity of download type, the technical scheme of self-locking can be used to solve self termination problem: self-locking technology by embedding in a gain optical vibration chamber by micro-ring resonant cavity, in conjunction with the bandpass filtering device in gain cavity, select a resonance wavelength as the transmitting wavelength of laser instrument, by increasing chamber gain, the transmitting wavelength selected will form Laser emission；Increasing interacvity gain further, once the luminous power of micro-ring resonant intracavity reaches the threshold value of optical parametric oscillation, will produce, at intracavity, the frequency comb that frequency interval is micro-ring resonant cavity Free Spectral Range.The pump light of self-locking technology is produced by the vibration of self, has the ability of self feed back regulation to outside ambient temperature and vibration, possesses good stability, is suitable for reality application.Generally, the frequency interval of micro-ring resonant cavity frequency comb is consistent with the Free Spectral Range of resonator cavity, for obtaining the frequency comb of many Free Spectral Ranges, pump light couples with the off resonance of resonator cavity and has been reported with double micro-loop organization plans, but its frequency interval range of accommodation only has several Free Spectral Range, its regulation is more complicated simultaneously, poor stability.
Utility model content
Pump light frequency comb generation system stability is injected poor for existing external resonant based on micro-ring resonant cavity, and its frequency interval is fixed or only adjustable drawback in several Free Spectral Ranges, this utility model provides the frequency comb at a kind of adjustable frequency interval and produces system, the frequency interval of its frequency comb produced freely can regulate with the integral multiple of micro-ring resonant cavity Free Spectral Range, and system will not be because of exterior temperature change, vibration and pump power influence of fluctuations and self termination phenomenon occurs, there is simple in construction, reliable and stable, without features such as external environment condition controls.
The technical solution of the utility model is:
The frequency comb at adjustable frequency based on micro-ring resonant cavity interval produces system, including optoisolator, Polarization Controller with upload/download type micro-ring resonant cavity；It is characterized in that and also includes adjustable double wavelength filter, optical amplifier and beam splitter.Described optical amplifier, optoisolator, Polarization Controller, upload/download type micro-ring resonant cavity, beam splitter and adjustable double wavelength filter form, by single-mode fiber series connection, the optic fiber ring-shaped cavity closed；One outfan of beam splitter, as the output port of system, is connected to spectrogrph at this output port and is easy to frequency comb signal produced by monitoring system；From the point of view of the propagation path of fiber annular endovenous laser signal, beam splitter must be positioned at upload/download type micro-ring resonant cavity after, i.e. laser signal first passes through and uploads/download type micro-ring resonant cavity, then through beam splitter；And position before and after remaining optical module is not had special requirement.
Above-mentioned optical amplifier is the optical amplifier of high-gain, and the generation for frequency comb provides gain.
Above-mentioned optoisolator be used for ensureing laser signal in fiber annular intracavity one-way transmission, to form unidirectional laser generation output.
Above-mentioned Polarization Controller for adjusting the polarization state (even if the light wave of fiber annular intracavity for single polarization state) of fiber annular endovenous laser signal, make to incide upload/polarization state of the laser signal of download type micro-ring resonant cavity with upload/the TE pattern of download type micro-ring resonant cavity or TM pattern consistent.
Above-mentioned upload/download type micro-ring resonant cavity has dual function, first as narrow linewidth comb filter, selects the initial laser of system to launch wavelength together with adjustable double wavelength filter；Secondly as nonlinear dielectric, produce cascade four-wave mixing effect, it is thus achieved that frequency comb signal, and frequency comb signal is exported to beam splitter.
Above-mentioned beam splitter for from uploading/the frequency comb signal of download type micro-ring resonant cavity output extract the part energy output as whole system.
Above-mentioned adjustable double wavelength filter with upload/initial two resonance wavelengths of download type micro-ring resonant cavity common choice as the wavelength of the pump light producing frequency comb, be simultaneously used for regulating the interval of two initial resonant wavelength, thus regulate the frequency interval of frequency comb.
Based on above-mentioned basic technical scheme, this utility model also can be made and being optimized as follows:
Above-mentioned optical amplifier, optoisolator, Polarization Controller, upload/download type micro-ring resonant cavity, beam splitter and adjustable double wavelength filter be sequentially connected in series the optic fiber ring-shaped cavity forming Guan Bi by single-mode fiber.
Above-mentioned adjustable double wavelength filter has two adjustable passbands, and the equal scalable of the centre wavelength of passband, bandwidth and intensity；Wherein, the regulation of centre wavelength and bandwidth is in order to ensure to have and the light wave of only two wavelength can form pumping laser, and intensity adjustments, in order to equalize the intensity of formed two pumping laser, can regulate the frequency interval of frequency comb by regulation passband wavelength.
Above-mentioned optical amplifier can use the semiconductor optical amplifier mixing bait optical amplifier or high-gain.
Above-mentioned optical amplifier also can be sequentially connected in series by single-mode fiber by pump laser, first wave division multiplexer, erbium-doped fiber and the second wavelength division multiplexer.
Above-mentioned pump laser can have two, is connected with first wave division multiplexer and the second wavelength division multiplexer respectively.
Above-mentioned Polarization Controller has 2, and wherein the first Polarization Controller is between optoisolator and uploading/download type micro-ring resonant cavity, and the second polariser is between multiple wavelengths filter and beam splitter.
Above-mentioned optical amplifier has the gain coefficient more than 20dB, and its saturation output power is more than 100mW simultaneously.
Above-mentioned upload/download type micro-ring resonant cavity has high-quality-factor Q ＞ 105；Upload/download type micro-ring resonant cavity has tetra-ports of Input, Through, Drop and Add, and its waveguide material used has and is multiple times than SiO2Nonlinear factor and negative dispersion coefficient.
Above-mentioned upload/download type micro-ring resonant cavity has high-quality-factor Q ＞ 105, to possess the strongest light field enhancing ability.
The beneficial effects of the utility model are:
1, the frequency interval of frequency comb is the most adjustable
This utility model uses the double pumping action technology that adjustable double wavelength filter and uploading/download type micro-ring resonant cavity combines, relatively and tradition list pump technology scheme, without obvious threshold phenomenon, frequency comb can be produced under relatively low pump power, and the frequency comb frequency interval produced can freely regulate (frequency comb having been carried out nearly 50 times of Free Spectral Range frequency intervals in experiment) with the integral multiple of the Free Spectral Range of micro-ring resonant cavity.
2, self termination phenomenon based on micro-ring resonant cavity is eliminated
This utility model by uploading/download type micro-ring resonant cavity is embedded in the optic fiber ring-shaped cavity of Guan Bi, an ingredient as optic fiber ring-shaped cavity optical fiber laser, and upload/download type micro-ring resonant cavity self is as resonance wavelength selector, the pump wavelength of generation frequency comb can be made and upload/the consistent wavelength of download type micro-ring resonant cavity, then whole system self-locking is enable, therefore this frequency comb system has the strongest immunocompetence to temperature and vibration, eliminates problem self termination easily occur when conventional external resonant current injection pump light produces frequency comb.
3, simple to operate, easy to adjust
The frequency interval of frequency comb is adjusted by tunable filter, simple to operate clear.
4, it is prone to the system integration
This utility model use upload/download type micro-ring resonant cavity is as the nonlinear dielectric of system, it is not necessary to longer nonlinear optical fiber, the beneficially system integration, it might even be possible to integrated on sheet, meet contemporary optics system to miniaturization and the trend of integrated development.
Accompanying drawing explanation
Fig. 1 is structural principle schematic diagram of the present utility model；
Fig. 2 is the structural representation of one concrete prioritization scheme of this utility model；
Fig. 3 be this utility model use upload/the structural representation of download type micro-ring resonant cavity；
Fig. 4 is to upload/filtering characteristic experiment test the figure of download type micro-ring resonant cavity；
The principle schematic of frequency comb is produced when Fig. 5 A is conventionally employed single pumping；
Fig. 5 B is the principle schematic producing frequency comb during this utility model employing double pumping action；
Fig. 6 A be input micro-ring resonant cavity pumping light power be four-wave mixing spectrogram during-1dBm；
Fig. 6 B be input micro-ring resonant cavity pumping light power be for four-wave mixing spectrogram during 10dBm；
Fig. 7 A is the frequency comb that experiment obtains 6 times of free spectral limits of micro-ring resonant cavity；
Fig. 7 B is the frequency comb that experiment obtains 8 times of free spectral limits of micro-ring resonant cavity；
Fig. 7 C is the frequency comb that experiment obtains 20 times of free spectral limits of micro-ring resonant cavity；
Fig. 7 D is the frequency comb that experiment obtains 46 times of free spectral limits of micro-ring resonant cavity；
Wherein, 1-wave filter；2-optical amplifier；21-the first pump laser；22-the second pump laser；The multiple device of 23-the first wavelength-division；The multiple device of 24-the second wavelength-division；25-erbium-doped fiber；3-optoisolator；4-Polarization Controller；41-the first Polarization Controller；42-the second Polarization Controller；5-uploads/download type micro-ring resonant cavity；51-substrate；52-covering；53-the first straight wave guide；54-the second straight wave guide；55-disc waveguide；6-beam splitter；7-single-mode fiber.
Detailed description of the invention
With detailed description of the invention, this utility model is elaborated below in conjunction with the accompanying drawings.
Fig. 1 is structural principle schematic diagram of the present utility model, as it can be seen, the frequency comb at adjustable frequency based on micro-ring resonant cavity provided by the utility model interval produce system be by optical amplifier 2, optoisolator 3, Polarization Controller 4 (Polarization Controller of whole system can have two), upload/download type micro-ring resonant cavity 5, beam splitter 6 and wave filter 1 (adjustable double wavelength filter) connected by single-mode fiber 7 and to form the optic fiber ring-shaped cavity closed；It addition, the outfan (i.e. the output port of whole system) at beam splitter 6 is connected to spectrogrph for monitoring produced frequency comb.It should be noted that, what Fig. 1 was given is a kind of series system of the present utility model, in reality, from the point of view of the propagation path of fiber annular endovenous laser signal, beam splitter 6 must be positioned at upload/download type micro-ring resonant cavity 5 after, i.e. laser signal first passes through and uploads/download type micro-ring resonant cavity 5, then through beam splitter 6；And position before and after remaining optical module is not had special requirement.
The effect in this utility model of the above-mentioned each optical module is:
Optical amplifier 2 is the optical amplifier (such as mixing the semiconductor optical amplifier of bait optical amplifier or high-gain) of high-gain, and the generation for frequency comb provides gain；Optoisolator 3 is used for ensureing that laser signal, in fiber annular intracavity one-way transmission, forms unidirectional laser generation output；Polarization Controller 4 is for adjusting the polarization state of fiber annular endovenous laser signal, make to incide upload/polarization state of the laser signal of download type micro-ring resonant cavity 5 with upload/the TE pattern of download type micro-ring resonant cavity 5 or TM pattern consistent, it is ensured that whole system list polarization state operates；Upload/download type micro-ring resonant cavity 5 has the dual-use function of narrow linewidth comb filter and nonlinear dielectric, for selecting the initial laser of system to launch wavelength together with wave filter 1, to produce cascade four-wave mixing effect, it is thus achieved that frequency comb signal；Beam splitter 6 for from uploading/the frequency comb signal of download type micro-ring resonant cavity 5 output extract the part energy output as whole system；Wave filter 1 with upload/initial two resonance wavelengths of download type micro-ring resonant cavity 8 common choice as the wavelength of the pump light producing frequency comb, be simultaneously used for regulating the interval of two initial resonant wavelength, thus regulate the frequency interval of frequency comb.
Fig. 2 is the structural representation of one concrete prioritization scheme of this utility model, as it can be seen, optical amplifier 2, optoisolator the 3, first Polarization Controller 41, upload/download type micro-ring resonant cavity 5, beam splitter the 6, second Polarization Controller 42 and wave filter 1 be sequentially connected in series the optic fiber ring-shaped cavity forming Guan Bi by single-mode fiber 7.
Wherein, optical amplifier 2 is sequentially connected in series by single-mode fiber 7 by the first pump laser 21, first wave division multiplexer 23, erbium-doped fiber the 25, second wavelength division multiplexer 24 and the second pump laser 22, provides gain for dual-wavelength laser vibration；Here, two pump lasers generally select the high power single mode semiconductor laser of 980nm, and two wavelength division multiplexers generally use the wavelength division multiplexer of 980nm/1550nm；
Upload/download type micro-ring resonant cavity 5 is a kind of high-quality-factor (Q ＞ 10 with weak negative dispersion coefficient made by high nonlinear coefficient material5) micro-ring resonant cavity, it possesses the strongest light field and strengthens ability, has comb filtering characteristic simultaneously, can produce cascade four-wave mixing and form frequency comb under the effect of pump light；Fig. 3 is to upload/the structural representation of download type micro-ring resonant cavity 5, including substrate 51, covering the 52, first straight wave guide the 53, second straight wave guide 54 and disc waveguide 55 and four ports (Input, Through, Drop and Add)；The two ends of the first straight wave guide are respectively Input port and Through port, and correspondingly, the two ends of the second straight wave guide 54 are respectively Drop port and Add port；
From optoisolator 3, the laser signal of output enters from Input port and uploads/download type micro-ring resonant cavity 5, and the light wave meeting condition of resonance will enter beam splitter 6 from the output of Drop port, and the light wave being unsatisfactory for condition of resonance is exported by Through port.
Fig. 4 is to upload/filtering curve the figure of download type micro-ring resonant cavity 5, the TE pattern of the most corresponding waveguide of the frequency line of two groups of equifrequent spacing in figure and TM pattern.Can be incided by change upload/polarization state of the light wave of download type micro-ring resonant cavity 5 selects one group of spectral line therein, and suppresses another group polarization spectral line.
The concrete principle and the experimentation that use the frequency comb at system provided by the utility model generation adjustable frequency interval are as follows:
This utility model provide adjustable frequency based on micro-ring resonant cavity interval frequency comb produce system be make use of upload/download type micro-ring resonant cavity 5 in cascade four-wave mixing effect.
Uploading/download type micro-ring resonant cavity 5 in have degeneration four-wave mixing and two kinds of situations of nondegenerate two-photon process.Fig. 5 A show the principle schematic producing frequency comb when using the single pump technology of tradition, when the pump light of only one of which wavelength, uploading/download type micro-ring resonant cavity 5 in there is degeneration four-wave mixing, series side frequency is produced on the both sides of pump light, in conjunction with uploading/the comb filtering characteristic of download type micro-ring resonant cavity 5, can be formed and single upload the/comb δ function formula of download type micro-ring resonant cavity 5 Free Spectral Range again.Fig. 5 B produces the principle schematic of frequency comb by this utility model used dual wavelength pump technology, when using dual wavelength pump technology scheme, mainly there is nondegenerate two-photon process, form the frequency comb identical with two pump light frequency intervals, and the frequency interval of pump light can be the most adjustable with the integral multiple of micro-ring resonant cavity 5 Free Spectral Range.
Below (in conjunction with accompanying drawing 2) as a example by the frequency comb of 10 times of micro-ring resonant cavity Free Spectral Ranges, the concrete forming process of frequency comb it is discussed in detail:
Experiment uses upload/download type micro-ring resonant cavity 5 uses high index-contrast integreted phontonics platform to make, its Free Spectral Range is 49GHz, and its quality factor is 1.45 × 106；Wave filter 1 uses adjustable double wavelength filter.
First two passband wavelength arranging wave filter 1 lay respectively at 1563.5nm and 1567.5nm, / 10 times of download type micro-ring resonant cavity 5 Free Spectral Range are about uploaded at interval, its bandwidth is both configured to 0.4nm, it is about a Free Spectral Range, it is ensured that only one of which resonance wavelength can be vibrated formation laser in a passband of wave filter 1；
Secondly regulation the first pump laser 21 and driving electric current of the second pump laser 22, incrementally increases the pump power to 980nm, when the gain of fiber annular intracavity exceedes loss, wave filter 1 and lasing of vibrating two wavelength selected, form laser；
The mode competition of Er-doped fiber 25 is uploaded/download type micro-ring resonant cavity 5 in nonlinear interaction suppressed, stable dual-wavelength laser output can be formed.Owing to uploading/the huge light field enhancement effect of download type micro-ring resonant cavity 5, along with the stable output of aforementioned dual-wavelength laser, two four-wave mixing sidebands produce the most therewith.Fig. 6 A is to upload/the luminous power of download type micro-ring resonant cavity 5 input port spectrogram when reaching-1dBm.Increase further the first pump laser 21 and driving electric current of the second pump laser 22, upload/download type micro-ring resonant cavity 5 will produce the four-wave mixing of cascade, form comb δ function formula.Fig. 6 B is to upload/the luminous power of download type micro-ring resonant cavity 5 input port spectrogram when reaching 10dBm./ the increase of the luminous power of download type micro-ring resonant cavity 5 is uploaded along with injecting, the spectral line quantity of frequency comb increases the most therewith, when being input to upload/pumping light power of download type micro-ring resonant cavity 5 input port is when reaching 20dBm, can obtain the bandwidth frequency comb more than 180nm.Now upload/distribution of light intensity of download type micro-ring resonant cavity 5 exceeded the parametric oscillator threshold caused by degeneration four-wave mixing, is formed about single uploading again/the comb δ function formula of download type micro-ring resonant cavity 5 Free Spectral Range at pump light.
By changing the wavelength interval of two passbands of wave filter 1, the frequency comb at different frequency interval can be obtained.As with fixed filters 1 a passband wavelength at 1567.5nm, and the centre wavelength of another passband can be regulated in units of 50GHz successively in an experiment, the frequency comb at a series of different frequency interval can be obtained.Fig. 7 A is 6 times and uploads/the frequency comb of download type micro-ring resonant cavity 5 Free Spectral Range, Fig. 7 B show 8 times and uploads/the frequency comb of download type micro-ring resonant cavity 5 Free Spectral Range, Fig. 7 C is 20 times and uploads/the frequency comb of download type micro-ring resonant cavity 5 Free Spectral Range, Fig. 7 D is 46 times and uploads/the frequency comb of download type micro-ring resonant cavity 5 Free Spectral Range, can be seen that from Fig. 7 A～7D, along with the interval of the centre wavelength of two passbands of wave filter 1 is gradually increased, the spectrum intervals of produced frequency comb increases the most accordingly.Visible, use the frequency comb that this utility model produces, the regulation of its spectrum intervals has only to change the spacing of two centre wavelengths of wave filter 1, is highly susceptible to operation.
Claims (9)
1. adjustable frequency based on micro-ring resonant cavity interval frequency comb produce system, including optoisolator,
Polarization Controller and upload/download type micro-ring resonant cavity；It is characterized in that: also include adjustable double wavelength filtering
Device, optical amplifier and beam splitter；
Described optical amplifier, optoisolator, Polarization Controller, upload/download type micro-ring resonant cavity, light
Beam splitter and adjustable double wavelength filter are formed the optic fiber ring-shaped cavity of Guan Bi by single-mode fiber series connection；Described
One outfan of beam splitter is as the output port of whole system；Along fiber annular endovenous laser signal
Propagation path, beam splitter be positioned at upload/download type micro-ring resonant cavity after；
Described optical amplifier is the optical amplifier of high-gain, and the generation for frequency comb provides gain；
Described optoisolator is used for ensureing that laser signal is in fiber annular intracavity one-way transmission；
Described Polarization Controller, for adjusting the polarization state of fiber annular endovenous laser signal, makes to incide
Upload/polarization state of the laser signal of download type micro-ring resonant cavity with upload/download type micro-ring resonant cavity
TE pattern or TM pattern are consistent；
Described upload/download type micro-ring resonant cavity has dual function, first as narrow linewidth comb filtering
Device, selects the initial laser of system to launch wavelength together with adjustable double wavelength filter；Secondly as non-thread
Property medium, produce cascade four-wave mixing effect, it is thus achieved that frequency comb signal, and by frequency comb signal export extremely
Beam splitter；
Described beam splitter for from uploading/the frequency comb signal of download type micro-ring resonant cavity output extract
Part energy is as the output of whole system；
Described adjustable double wavelength filter with upload/initial two of download type micro-ring resonant cavity common choice
Resonance wavelength, as the wavelength of the pump light producing frequency comb, is simultaneously used for regulating two initial resonant wavelength
Interval, thus regulate the frequency interval of frequency comb.
The frequency comb at adjustable frequency based on micro-ring resonant cavity the most according to claim 1 interval produces
System, it is characterised in that: described optical amplifier, optoisolator, Polarization Controller, upload/download type
Micro-ring resonant cavity, beam splitter and adjustable double wavelength filter are sequentially connected in series by single-mode fiber and form Guan Bi
Optic fiber ring-shaped cavity.
The frequency comb at adjustable frequency based on micro-ring resonant cavity the most according to claim 2 interval produces
System, it is characterised in that: described adjustable double wavelength filter has two adjustable passbands, and passband
The equal scalable of centre wavelength, bandwidth and intensity；Wherein, the regulation of centre wavelength and bandwidth is in order to ensure having
And the light wave of only two wavelength can form pumping laser, intensity adjustments is in order to equalize formed two
The intensity of pumping laser, can regulate the frequency interval of frequency comb by regulation passband wavelength.
The frequency comb at adjustable frequency based on micro-ring resonant cavity the most according to claim 3 interval produces
System, it is characterised in that: described optical amplifier is the quasiconductor mixing bait optical amplifier or high-gain
Image intensifer.
The frequency comb at adjustable frequency based on micro-ring resonant cavity the most according to claim 3 interval produces
System, it is characterised in that: described optical amplifier by pump laser, first wave division multiplexer, mix bait
Optical fiber and the second wavelength division multiplexer are sequentially connected in series by single-mode fiber.
The frequency comb at adjustable frequency based on micro-ring resonant cavity the most according to claim 5 interval produces
System, it is characterised in that: described pump laser has two, respectively with first wave division multiplexer and second
Wavelength division multiplexer is connected.
7. according to the light at arbitrary described adjustable frequency based on the micro-ring resonant cavity interval of claim 3 to 6
Frequency comb generation system, it is characterised in that: described Polarization Controller has 2, wherein the first Polarization Controller
Between optoisolator and uploading/download type micro-ring resonant cavity, the second polariser is positioned at multiple wavelengths filter
And between beam splitter.
8. according to the light at arbitrary described adjustable frequency based on the micro-ring resonant cavity interval of claim 1 to 5
Frequency comb generation system, it is characterised in that: described optical amplifier has the gain coefficient more than 20dB, with
Time its saturation output power more than 100mW.
The frequency comb at adjustable frequency based on micro-ring resonant cavity the most according to claim 1 and 2 interval
Generation system, it is characterised in that upload described in :/download type micro-ring resonant cavity has high-quality-factor Q ＞ 105；
Described upload/download type micro-ring resonant cavity has tetra-ports of Input, Through, Drop and Add,
And its waveguide material used has and is multiple times than SiO2Nonlinear factor and negative dispersion coefficient.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201620194919.3U CN205609949U (en) | 2016-03-14 | 2016-03-14 | Adjustable frequency spaced optical frequency comb generation system based on encircle resonant cavity a little |
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| CN201620194919.3U CN205609949U (en) | 2016-03-14 | 2016-03-14 | Adjustable frequency spaced optical frequency comb generation system based on encircle resonant cavity a little |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680301A (en) * | 2016-03-14 | 2016-06-15 | 中国科学院西安光学精密机械研究所 | Micro-ring resonator-based system and method for generating optical frequency comb with adjustable frequency interval |
| CN107482469A (en) * | 2017-09-22 | 2017-12-15 | 中国科学院半导体研究所 | The adjusting apparatus and method of frequency comb |
| WO2018041126A1 (en) * | 2016-08-31 | 2018-03-08 | 中国科学院西安光学精密机械研究所 | Harmonic mode-locked laser based on micro-ring resonator |
| CN108873174A (en) * | 2017-05-11 | 2018-11-23 | 华为技术有限公司 | It is a kind of to polarize unrelated optical device |
| CN109659805A (en) * | 2018-12-11 | 2019-04-19 | 武汉邮电科学研究院有限公司 | A kind of tunable laser |
| CN114609888A (en) * | 2022-03-07 | 2022-06-10 | 电子科技大学 | Atomic clock-cavity optical mechanical system interlocking type photo-generated microwave source |
-
2016
- 2016-03-14 CN CN201620194919.3U patent/CN205609949U/en not_active Withdrawn - After Issue
Cited By (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105680301A (en) * | 2016-03-14 | 2016-06-15 | 中国科学院西安光学精密机械研究所 | Micro-ring resonator-based system and method for generating optical frequency comb with adjustable frequency interval |
| CN105680301B (en) * | 2016-03-14 | 2018-12-14 | 中国科学院西安光学精密机械研究所 | The frequency comb generation system and method at the adjustable frequency interval based on micro-ring resonant cavity |
| WO2018041126A1 (en) * | 2016-08-31 | 2018-03-08 | 中国科学院西安光学精密机械研究所 | Harmonic mode-locked laser based on micro-ring resonator |
| CN108873174A (en) * | 2017-05-11 | 2018-11-23 | 华为技术有限公司 | It is a kind of to polarize unrelated optical device |
| CN108873174B (en) * | 2017-05-11 | 2019-11-29 | 华为技术有限公司 | It is a kind of to polarize unrelated optical device |
| US10735124B2 (en) | 2017-05-11 | 2020-08-04 | Huawei Technologies Co., Ltd. | Polarization independent optical device |
| CN107482469A (en) * | 2017-09-22 | 2017-12-15 | 中国科学院半导体研究所 | The adjusting apparatus and method of frequency comb |
| CN109659805A (en) * | 2018-12-11 | 2019-04-19 | 武汉邮电科学研究院有限公司 | A kind of tunable laser |
| CN114609888A (en) * | 2022-03-07 | 2022-06-10 | 电子科技大学 | Atomic clock-cavity optical mechanical system interlocking type photo-generated microwave source |
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