CN204927802U - Tunable optical microcavity raman laser and tunable optical microcavity doping laser instrument - Google Patents
Tunable optical microcavity raman laser and tunable optical microcavity doping laser instrument Download PDFInfo
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Abstract
The utility model relates to a laser instrument field specifically is tunable optical microcavity raman laser and tunable optical microcavity doping laser instrument. Tunable optical microcavity raman laser, including first pumping source, optical microcavity, coupled device and temperature control device, first pumping source and optical microcavity are located temperature control device's control by temperature change within range through coupled device connection and optical microcavity, tunable optical microcavity doping laser instrument, including second pumping source, doping optical microcavity, coupled device, wavelength division multiplexer and the temperature control device who produces 980nm or 1480nm pumping light, second pumping source, doping optical microcavity and wavelength division multiplexer connect the control by temperature change within range that the optical microcavity that just adulteratees is located temperature control device through coupled device. The utility model discloses simple structure, small, the Q value is high, and subsequent application that integrates of being convenient for realizes harmonious to outgoing laser wavelength through the control to the optical microcavity temperature, and harmonious mechanism is simple, convenient, efficient.
Description
Technical field
The utility model relates to field of lasers, is specially tunable optical micro-cavity Raman laser and tunable optical microcavity doping laser.
Background technology
Tunable optical fiber laser is modern Fiber Optical Communication System critical component, has the compatibility natural with optical fiber and the beam quality of high-quality, is also usually used in medical science, Fibre Optical Sensor and spectrum analysis field.Along with the increase of message capacity and the development of optic fibre manufacturing technology, tunable optical fiber laser more and more comes into one's own and is progressively applied.But in actual applications, it is found that various types of tunable optical fiber lasers in the market all exist some problems being difficult to overcome.
The structure of existing tunable Raman fiber laser mainly comprises pumping source, resonant cavity, gain media and acousto-optic tunable filter, the mode of general employing grating pair or cascade forms resonant cavity, utilize longer highly nonlinear optical fiber as gain media, its output wavelength depends on the Raman frequency shift of pumping source wavelength and gain media, and carries out the tuning of output wavelength by acousto-optic tunable filter.The tunable Raman fiber laser Problems existing of this structure is: (1) adopts comparatively that long optical fibers is as Effects in Nonlinear Media with Gain, and volume is relatively large; (2) resonant cavity adopts the form of multipair Fiber Bragg Grating FBG (FBG) cascade, and conventional FBG reflection bandwidth is narrower, and the conversion efficiency of laser is restricted; (3) cannot accomplish well integrated with the chip of communication system, cannot large-scale integrated development and application; (4) Q value is lower, and the conversion efficiency of laser is lower, and threshold value is higher, and relative intensity noise is higher; (5) Tuning mechanism of laser adopts the form such as filter tuner and thermal tuning usually, filter tuner, need introduce extra optical device, increases complexity and the insertion loss of system, improves the cost of laser; For thermal tuning, large area need be adopted to heat, and the efficiency of heating surface is lower.
The structure of existing tunable doped fiber laser mainly comprises pumping source, gain media (i.e. rare-earth-doped fiber), resonant cavity and wavelength selecting device, doping with rare-earth ions in the energy-activation optical fiber of pumping source transits to high level, these ions through radiationless transition to metastable upper laser level, form population inversion, transit to laser lower level again and produce photon, photon forms Laser output after vibrating in resonant cavity and amplifying, and carries out the tuning of output wavelength by wavelength selecting device.The tunable doped fiber laser Problems existing of this structure is: (1) adopts comparatively that long optical fibers is as gain media, and volume is relatively large, and limiting it is having the application of occasion of particular/special requirement, application inconvenience to size; (2) cannot accomplish well integrated with the chip of modern communication systems, be difficult to large-scale integrated development and application; (3) Q value is lower, and the conversion efficiency of laser is lower, and threshold value is higher; (4) form such as tuning and filter tuner of Tuning mechanism many employings fiber grating tuning of laser, thermal tuning, fiber loop mirror, wherein fiber grating tuning, by the temperature of bare optical fibers and bare optical gratings, the restriction of strain-responsive sensitivity, tuning range is very narrow; For thermal tuning, large area need be adopted to heat, and the efficiency of heating surface is lower; Fiber loop mirror is tuning all to be needed to introduce extra optical device with filter tuner, increases complexity and the insertion loss of system, improves the cost of laser; The equal existing defects of Tuning mechanism of above-mentioned several mode, and be not suitable for miniaturized, the integrated demand of modern Fiber Optical Communication System optics.
Therefore, be necessary the technical scheme that a kind of improvement is provided, solve the problem existing for conventional tunable fiber laser.
Along with people deepen continuously to the research of optical microcavity, the laser based on optical microcavity becomes the new development trend of laser gradually.
Optical microcavity, refer to there is high-quality-factor (Q) and size can be comparable with optical wavelength optical resonator.The shape of current optical microcavity mainly comprises micro-ring, microballoon, micro-dish, microtrabeculae, micro-core annulus and deformable cavity etc.And this wherein, the optical microcavity most based on Whispering-gallery-mode is representative.
Whispering-gallery-mode, come from field of acoustics, its principle is that sound wave can constantly in bending smooth metope reflection, loss be very little, so sound can propagate far distance along wall, this effect is called as whispering gallery mode (WhisperingGalleryMode, WGM) i.e. Whispering-gallery-mode, typical application is famous Beijing the Temple of Heaven Echo Wall.Be similar to sound wave to reflect at metope, when light is close to when optically thinner medium is incident and incidence angle is enough large from light, also on two media surface, total reflection can occurs, so also there is optics Whispering-gallery-mode at bending high refractive index medium interface.In the border of closed housing, light then can be trapped in the traveling wave pattern that inside cavity keeps stable always.
Laser based on optical microcavity replaces traditional resonant cavity with optical microcavity in the structure of laser, due to the high q-factor of optical microcavity, makes the laser based on optical microcavity have excellent characteristic compared to traditional fiber laser.Along with the development of optical microcavity technology, it also more comes also extensive in the application of field of lasers, such as based on the Raman laser of optical microcavity and the doping laser based on optical microcavity, but the research about tunable optical micro-cavity laser is but almost in the blank stage, not yet finds any correlation technique data.
Utility model content
For tunable optical fiber laser Problems existing in prior art, the utility model provides a kind of novel tunable Raman laser based on the echo wall type optical microcavity prepared on a semiconductor die and tunable doping laser.
For realizing above technical purpose, the technical solution of the utility model is:
Tunable optical micro-cavity Raman laser, comprises the first pumping source, optical microcavity and coupled apparatus, and described first pumping source is connected by coupled apparatus with optical microcavity, also comprises attemperating unit, and described optical microcavity is positioned at the temperature-control range of attemperating unit.
The advantage of this technical scheme is:
1. do not need to use comparatively that long optical fibers is as Effects in Nonlinear Media with Gain, there is stimulated Raman scattering in pump light, produce Raman frequency shift in optical microcavity, and make laser structure simple, volume is little, is convenient in various applications.
2. realize temperature by attemperating unit to optical microcavity to control, thus realize tuning to optical microcavity Output of laser wavelength, Tuning mechanism is simple, convenient, efficiency is high.
3. optical microcavity replaces conventional resonance chamber, and Q value is higher, and conversion efficiency is higher, and threshold value is lower, and relative intensity noise is lower.
4. optical microcavity is prepared on a semiconductor die, is convenient to and the follow-up other system integrated chip be connected, is conducive to large-scale development and application.
As improvement, also comprise Polarization Controller, described Polarization Controller is connected between the first pumping source and coupled apparatus; For tuning pump light polarization, improve coupling efficiency.
As preferably, the material of making of described optical microcavity is any one of silicon dioxide, polymer, semiconductor and calcirm-fluoride; Make material advantage separately according to difference, select suitable applications.
As preferably, the structure of described optical microcavity is any one of micro-ring, microballoon, micro-dish, microtrabeculae, micro-core annulus and deformable cavity; Optical microcavity various structures is optional, according to the feature of different structure, selects the applications be applicable to.
As improvement, described optical microcavity inner surface has coating, and described coating is metal material coating or Graphene coating; Increase coating, improve the physical characteristic of optical microcavity, increase its heat conduction efficiency, improve the precision that attemperating unit controls it.
As preferably, described coupled apparatus be optical taper, the optical fiber of the oblique polishing in one end, waveguide and prism any one; Multiple coupled apparatus is optional, according to different coupled apparatus feature separately, selects the applications be applicable to.
For realizing above technical purpose, another technical scheme of the present utility model is:
Tunable optical microcavity doping laser, comprise the second pumping source for generation of 980nm or 1480nm pump light, the doping optical microcavity doped with active gain material, coupled apparatus and wavelength division multiplexer, described second pumping source, doping optical microcavity are connected by coupled apparatus with wavelength division multiplexer, also comprise attemperating unit, described doping optical microcavity is positioned at the temperature-control range of attemperating unit.
The advantage of this technical scheme is:
1. the dopant of optical microcavity is gain media, does not need comparatively that long optical fibers is as gain media, and make laser structure simple, volume is little, is convenient in various applications.
2. realize temperature by attemperating unit to optical microcavity to control, thus realize tuning to optical microcavity Output of laser wavelength, Tuning mechanism is simple, convenient, efficiency is high.
3. optical microcavity is prepared on a semiconductor die, is convenient to and the follow-up other system integrated chip be connected, is conducive to large-scale development and application.
4. optical microcavity replaces conventional resonance chamber, and Q value is higher, and conversion efficiency is higher, and threshold value is lower, and relative intensity noise is lower.
As improvement, also comprise Polarization Controller, described Polarization Controller is connected between the second pumping source and coupled apparatus; For tuning pump light polarization, improve coupling efficiency.
A kind of rare earth ion is at least comprised as preferred described active gain material; Optical microcavity can adulterate a kind of rare earth ion, also can be that multiple rare earth ion is mixed altogether.
As preferably, the material of making of described doping optical microcavity is any one of silicon dioxide, polymer, semiconductor and calcirm-fluoride; Make material advantage separately according to difference, select suitable applications.
As preferably, the structure of described doping optical microcavity is any one of micro-ring, microballoon, micro-dish, microtrabeculae, micro-core annulus and deformable cavity; Optical microcavity various structures is optional, according to the feature of different structure, selects the applications be applicable to.
As improvement, described doping optical microcavity inner surface has coating, and described coating is metal material coating or Graphene coating; Increase coating, improve the physical characteristic of optical microcavity, increase its heat conduction efficiency, improve the precision that attemperating unit controls it.
As preferably, described coupled apparatus be optical taper, the optical fiber of the oblique polishing in one end, waveguide and prism any one; Multiple coupled apparatus is optional, according to different coupled apparatus feature separately, selects the applications be applicable to.
Accompanying drawing explanation
Fig. 1 is the structural representation of the utility model tunable optical micro-cavity Raman laser embodiment;
Fig. 2 is optical taper and optical microcavity connected mode schematic diagram;
Fig. 3 is the variation relation figure between the shoot laser wavelength of the utility model tunable optical micro-cavity Raman laser embodiment and optical microcavity temperature;
Fig. 4 is the structural representation of the utility model the utility model tunable optical microcavity doping laser embodiments;
Fig. 5 is the variation relation figure between the shoot laser wavelength of the utility model the utility model tunable optical microcavity doping laser embodiments and optical microcavity temperature;
Reference numeral: 1, the first pumping source, 2, optical microcavity, 3, coupled apparatus, 4, attemperating unit, 5, Polarization Controller, 6, the second pumping source, 7, doping optical microcavity, 8, wavelength division multiplexer, 8.1, wavelength division multiplexer first port, 8.2, wavelength division multiplexer second port, 8.3, wavelength division multiplexer the 3rd port.
Embodiment
Micro-optical ring microcavity Tuning Principle
Micro-ring-type optical microcavity resonance wavelength can be written as the form of formula 1
λ
mbe the wavelength of laser when M (M is positive integer) rank mode of resonance in vacuum, R is the radius of micro-dish, n
effit is the effective refractive index of Whispering-gallery-mode.Can by the resonance wavelength condition of change 1 formula, make that the resonance outgoing wave in gain spectral is long to change, what realize laser output wavelength is tuning.When the temperature of microcavity changes, the refractive index of microcavity volume and microcavity material all changes.The microcavity resonance wavelength equation that therefore can obtain about variations in temperature is as follows:
Composition graphs 1, describes the specific embodiment of the utility model tunable optical micro-cavity Raman laser in detail, but does not do any restriction to claim of the present utility model.
As shown in Figure 1, tunable optical micro-cavity Raman laser, comprise the first pumping source 1, optical microcavity 2, coupled apparatus 3, attemperating unit 4 and Polarization Controller 5, described first pumping source 1 is connected by coupled apparatus 3 with optical microcavity 2, described Polarization Controller 5 is connected between the first pumping source 1 and coupled apparatus 3, and optical microcavity 2 is positioned at the temperature-control range of attemperating unit 4.
Wherein the first pumping source 1 selects the semiconductor laser producing 1550nm pump light; Optical microcavity 2 is made up of earth silicon material and is micro-ring structure, temperature coefficient a=6 × 10 of its resonance wavelength
-6[1/ DEG C], from formula (2) and relevant material temperature coefficient, micro-ring cavity temperature often changes 1 DEG C of Raman laser output wavelength will drift about 6 × 10
-6λ
0(λ
0resonance wavelength for microcavity during initial temperature); Coupled apparatus 3 selects optical taper, and coupling efficiency is high, and the connected mode of optical taper and optical microcavity as shown in Figure 2; Polarization Controller 5, for controlling pumping polarisation of light state, improves the coupling efficiency of laser; Attemperating unit 4 heat optical microcavity 2, by the temperature of accurate control both optical microcavity 2, what realize laser emitting optical maser wavelength is tuning.
During work, first pumping source 1 outgoing 1550nm pump light injects Polarization Controller 5, then the polarization state that Polarization Controller 5 adjusts pump light outputs to optical taper, optical microcavity 2 is coupled into again by optical taper, the energy being coupled into the pump light of optical microcavity is concentrated in optical microcavity, form the laser field of high strength, due to stimulated raman scattering, stokes light and anti-Stokes light is produced in chamber, pump light and stokes light and anti-Stokes light are coupled and cause the transfer of energy, thus realize the Raman frequency shift of laser, form shoot laser, then shoot laser by optical taper from optical microcavity 2 coupling output.
Shoot laser is accessed spectrometer, measures shoot laser wavelength, record experimental data, obtains the variation relation figure between tunable optical micro-cavity Raman laser shoot laser wavelength as shown in Figure 3 and optical microcavity temperature.
As shown in Figure 3 when optical microcavity temperature rises to 89.5 DEG C from 23 DEG C, the shoot laser wavelength of tunable optical micro-cavity Raman laser also floats to 1643.59nm from 1642.85nm thereupon, wherein the initial resonant wavelength of optical microcavity is 1642.85nm, in Fig. 3, solid black lines carries out linear fit to experimental data, the linearity is 0.99688, known linear fit slope is 0.01117, namely the variation coefficient of laser emitting laser wavelength with temperature is 0.01117nm/ DEG C, substantially identical with theoretical value.
When technique scheme is specifically implemented, what should be noted that has:
1. the first pumping source 1 can be semiconductor laser, also can be the laser of the other types such as solid state laser, dye laser;
2. pump wavelength is not limited to 1550nm, various wavelength, but meet certain power, to reach the condition producing stimulated Raman scattering scattering, because laser in practical application is not distinguished with power, but distinguish with wavelength, and laser power is adjustable, such as 980nm laser, 1550nm laser, so the pumping source of technical scheme is not limited power;
3. the material of making of optical microcavity 2 is not limited to silicon dioxide, can be chip silica-base material and other semi-conducting materials such as silicon, silicon dioxide, silicon nitride, also can be the unformed glass material of melting, crystalline material (mainly containing calcirm-fluoride, magnesium fluoride) and polymeric material etc.; The structure of optical microcavity 2 is not limited to micro-ring, also can be the other types such as microballoon, micro-dish, microtrabeculae, micro-core annulus and deformable cavity; Optical microcavity 2 inner surface also can increase coating, improves the physical characteristic of optical microcavity, increases its heat conduction efficiency, improve the precision that controls it of attemperating unit, coating can be the coat of metal, such as silver-plated, aluminium etc., also can be other materials coating, such as Graphene etc.;
4. coupled apparatus 3 is not limited to the form adopting optical taper, also can be other near-field coupling devices such as the optical fiber of the oblique polishing in one end, waveguide and prism;
5. attemperating unit 4 can be electric hot tray, thermocouple etc., its heating location, it can be the bottom of optical microcavity 2, also can be other positions such as optical microcavity 2 side, concrete mode of heating can adopt direct heating, and such as electric hot tray directly contacts microcavity, also can adopt indirect, such as, change the ambient temperature around optical microcavity 2.
Composition graphs 4, describes the specific embodiment of the utility model tunable optical microcavity doping laser in detail, but does not do any restriction to claim of the present utility model.
As shown in Figure 4, tunable optical microcavity doping laser, comprise and produce the second pumping source 6 of 980nm or 1480nm pump light, doping optical microcavity 7, coupled apparatus 3, wavelength division multiplexer 8, attemperating unit 4 and the Polarization Controller 5 doped with active gain material, described second pumping source 6, doping optical microcavity 7 are connected by coupled apparatus 3 with wavelength division multiplexer 8, described Polarization Controller is connected between the second pumping source 6 and coupled apparatus 3, and doping optical microcavity 7 is positioned at the temperature-control range of attemperating unit 4.
Wherein the second pumping source 6 selects the semiconductor laser producing 980nm pump light; Doping optical microcavity 7 is made up of earth silicon material and is micro-ring structure, and the active gain material of doping is erbium ion, temperature coefficient a=6 × 10 of its resonance wavelength
-6[1/ DEG C], from formula (2) and relevant material temperature coefficient, micro-ring cavity temperature often changes 1 DEG C of Raman laser output wavelength will drift about 6 × 10
-6λ
0(λ
0resonance wavelength for microcavity during initial temperature); Coupled apparatus 3 selects optical taper, and coupling efficiency is high, and the connected mode of optical taper and optical microcavity as shown in Figure 2; Polarization Controller 5, for controlling pumping polarisation of light state, improves the coupling efficiency of laser; Attemperating unit 4 heats doping optical microcavity 7, and by the temperature of accurate controlled doping optical microcavity 7, what realize laser emitting optical maser wavelength is tuning; Wavelength division multiplexer 8, needed for unwanted veiling glare in the laser export doping optical microcavity 7 (fluorescence etc. that unabsorbed pump light, gain media produce) and reality, laser carries out filtering exporting respectively.
During work, second pumping source 6 outgoing 980nm pump light injects Polarization Controller 5, then the polarization state that Polarization Controller 5 adjusts pump light outputs to optical taper, doping optical microcavity 7 is coupled into again by optical taper, the pump light that in optical microcavity 7, the erbium ion absorbing coupling of doping enters, be subject to excitation and transit to high level, these ions through radiationless transition to metastable upper laser level, form population inversion, transit to laser lower level again and produce photon, photon forms shoot laser after vibrating in microcavity and amplifying, then shoot laser by optical taper from doping optical microcavity 7 coupling output to wavelength division multiplexer 8, first port 8.1 (being applicable to 980nm/1550nm wave band) of wavelength division multiplexer 8 receives shoot laser, wavelength division multiplexer 8 filters, unwanted veiling glare (mainly unabsorbed pump light) and required laser are exported respectively by the second port 8.2 (being applicable to 980nm wave band) and the 3rd port 8.3 (being applicable to 1550nm wave band).
Laser access spectrometer needed for 3rd port 8.3 of wavelength division multiplexer 8 is exported, the wavelength of Output of laser is measured, record experimental data, obtains the variation relation figure that tunable optical microcavity as shown in Figure 5 adulterates between laser emitting optical maser wavelength and doping optical microcavity 7 temperature.
As shown in Figure 5 when doping optical microcavity temperature rises to 89.50C from 230C, the shoot laser wavelength of tunable optical microcavity doping laser also floats to 1536.39nm from 1535.75nm thereupon, wherein the initial resonant wavelength of doping optical microcavity 7 is 1535.75nm, in Fig. 5, solid black lines carries out linear fit to experimental data, the linearity is 0.99496, known linear fit slope is 0.00974, namely tunable optical microcavity doping laser wavelength variation with temperature coefficient is 0.00974nm/0C, substantially identical with theoretical value.
When technique scheme is specifically implemented, what should be noted that has:
1. the second pumping source 6 can be semiconductor laser, also can be the laser of the other types such as solid state laser, dye laser;
2. pump wavelength is not limited to 980nm, also can be 1480nm, as long as it is suitable for the active gain material absorbing that doping optical microcavity 7 adulterates.
3. the material of making of doping optical microcavity 7 is not limited to silicon dioxide, can be chip silica-base material and other semi-conducting materials such as silicon, silicon dioxide, silicon nitride, also can be the unformed glass material of melting, crystalline material (mainly containing calcirm-fluoride, magnesium fluoride) and polymeric material etc.; The structure of doping optical microcavity 7 is not limited to micro-ring, also can be the other types such as microballoon, micro-dish, microtrabeculae, micro-core annulus and deformable cavity; The active gain material that doping optical microcavity 7 adulterates can be the one of the rare earth ion such as erbium, ytterbium, also can be that multiple rare earth ion is mixed altogether; Doping optical microcavity 7 inner surface also can increase coating, improves the physical characteristic of doping optical microcavity, increases its heat conduction efficiency, improve the precision that controls it of attemperating unit, coating can be the coat of metal, such as silver-plated, aluminium etc., also can be other materials coating, such as Graphene etc.;
4. coupled apparatus 3 is not limited to the form adopting optical taper, also can be other near-field coupling devices such as the optical fiber of the oblique polishing in one end, waveguide and prism;
5. attemperating unit 4 can be electric hot tray, thermocouple etc., its heating location, can be the bottom of doping optical microcavity 7, also can be other positions such as the side of doping optical microcavity 7; Concrete mode of heating can adopt direct heating, and such as electric hot tray directly contacts microcavity, also can adopt indirect, such as, change the ambient temperature around doping optical microcavity 7.
From above-mentioned two embodiments, tunable micro-cavity laser described in the utility model, chip type optical microcavity is adopted to replace traditional resonant cavity, utilize the temperature variant characteristic of optical microcavity (namely when the variations in temperature of optical microcavity, volume and the refractive index of optical microcavity also change thereupon), by tuning to shoot laser wavelength of the control realization of optical microcavity temperature.
Compared with existing tunable optical fiber laser, tunable micro-cavity laser structure described in the utility model is simple, and volume is little, and cost is low; Q value is high, and conversion efficiency is high, threshold value is low, relative intensity noise is low; Tuning mechanism adopts thermal tuning, tuning simple, convenient, efficiency is high.
Although the Tuning Principle of the thermal tuning fiber laser of the Tuning Principle of tunable micro-cavity laser and traditional structure is similar, but owing to adopting optical microcavity structure, make to need the area of heating obviously to reduce, heat simpler, thermal transition efficiency is higher, tuned speed is also faster, and its performance is obviously better than the thermal tuning fiber laser of traditional structure.
In sum, tunable micro-cavity laser described in the utility model, utilize chip type optical microcavity to replace traditional resonant cavity, volume is little, and Q value is high, is convenient to follow-up integra-tion application; Tuning mechanism is simple, convenient, efficiency is high.Compared with existing tunable optical fiber laser, performance is more superior, and structure is more simple, is more suitable for integra-tion application.
Be understandable that, above about specific descriptions of the present utility model, be only not limited to the technical scheme described by the utility model embodiment for illustration of the utility model, such as, in technical scheme, still can increase other optics improving coupling efficiency.Those of ordinary skill in the art should be appreciated that and still can modify to the utility model or equivalent replacement, to reach identical technique effect, such as, Tuning Principle described in the utility model is applied to the laser based on optical microcavity of other types; Needs are used, all within protection range of the present utility model as long as meet.
Claims (9)
1. a tunable optical micro-cavity Raman laser, comprise the first pumping source (1), optical microcavity (2) and coupled apparatus (3), described first pumping source (1) is connected by coupled apparatus (3) with optical microcavity (2), it is characterized in that: also comprise attemperating unit (4), described optical microcavity (2) is positioned at the temperature-control range of attemperating unit (4).
2. tunable optical micro-cavity Raman laser according to claim 1, it is characterized in that: also comprise Polarization Controller (5), described Polarization Controller (5) is connected between the first pumping source (1) and coupled apparatus (3).
3. tunable optical micro-cavity Raman laser according to claim 1 and 2, is characterized in that: described optical microcavity (2) inner surface has coating, and described coating is metal material coating or Graphene coating.
4. tunable optical micro-cavity Raman laser according to claim 1 and 2, is characterized in that: described coupled apparatus (3) is optical taper, the optical fiber of the oblique polishing in one end, waveguide and prism any one.
5. a tunable optical microcavity doping laser, comprise the second pumping source (6) for generation of 980nm or 1480nm pump light, the doping optical microcavity (7) doped with active gain material, coupled apparatus (3) and wavelength division multiplexer (8), described second pumping source (6), doping optical microcavity (7) are connected by coupled apparatus (3) with wavelength division multiplexer (8), it is characterized in that: also comprise attemperating unit (4), described doping optical microcavity (7) is positioned at the temperature-control range of attemperating unit (4).
6. tunable optical microcavity doping laser according to claim 5, it is characterized in that: also comprise Polarization Controller (5), described Polarization Controller (5) is connected between the second pumping source (6) and coupled apparatus (3).
7. the tunable optical microcavity doping laser according to claim 5 or 6, is characterized in that: described active gain material at least comprises a kind of rare earth ion.
8. the tunable optical microcavity doping laser according to claim 5 or 6, is characterized in that: described doping optical microcavity (7) inner surface has coating, and described coating is metal material coating or Graphene coating.
9. the tunable optical microcavity doping laser according to claim 5 or 6, is characterized in that: described coupled apparatus (3) is optical taper, the optical fiber of the oblique polishing in one end, waveguide and prism any one.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934850A (en) * | 2015-07-03 | 2015-09-23 | 安徽大学 | A tunable optical micro-cavity Raman laser and a tunable optical micro-cavity doped laser |
| CN107631998A (en) * | 2017-10-07 | 2018-01-26 | 六安市华海电子器材科技有限公司 | A kind of portable spectrometer and method for liquid detection |
| CN109755850A (en) * | 2019-03-08 | 2019-05-14 | 江苏师范大学 | A kind of ultrafast fibre laser oscillator of middle infrared Raman based on microcavity |
-
2015
- 2015-07-03 CN CN201520481085.XU patent/CN204927802U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104934850A (en) * | 2015-07-03 | 2015-09-23 | 安徽大学 | A tunable optical micro-cavity Raman laser and a tunable optical micro-cavity doped laser |
| CN107631998A (en) * | 2017-10-07 | 2018-01-26 | 六安市华海电子器材科技有限公司 | A kind of portable spectrometer and method for liquid detection |
| CN109755850A (en) * | 2019-03-08 | 2019-05-14 | 江苏师范大学 | A kind of ultrafast fibre laser oscillator of middle infrared Raman based on microcavity |
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