CN110233411A - A kind of laser that can be exported across wave band - Google Patents
A kind of laser that can be exported across wave band Download PDFInfo
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- CN110233411A CN110233411A CN201910456780.3A CN201910456780A CN110233411A CN 110233411 A CN110233411 A CN 110233411A CN 201910456780 A CN201910456780 A CN 201910456780A CN 110233411 A CN110233411 A CN 110233411A
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/07—Construction or shape of active medium consisting of a plurality of parts, e.g. segments
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08004—Construction or shape of optical resonators or components thereof incorporating a dispersive element, e.g. a prism for wavelength selection
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/08—Construction or shape of optical resonators or components thereof
- H01S3/08086—Multiple-wavelength emission
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Abstract
The present invention provides a kind of laser that can be exported across wave band, gain media carries out power amplification and video stretching component to input light wave and carries out video stretching to input light wave, obtains target light wave, and target light wave is sent to light wave extracting parts；Light wave extracting parts extracts the light wave of the corresponding predetermined wavelength of laser output precision belonging to light wave extracting parts from target light wave, and is sent to light splitting part for obtained light wave is extracted；Received light wave is carried out light-splitting processing and remaining light wave is sent to other laser output precisions using obtained part light wave as the output light wave of laser output precision belonging to light splitting part by light splitting part.The laser input light wave that the embodiment of the present invention provides one kind and can export across wave band be converted in same resonant cavity interior orientation, multiple laser output precisions are respectively processed input light wave, the light wave of different-waveband is obtained, so that same laser exports the light wave of a variety of different-wavebands.
Description
Technical field
The present invention relates to field of laser device technology, in particular to a kind of laser that can be exported across wave band.
Background technique
Laser is a kind of equipment that can emit laser, with the development of science and technology laser is widely used in doctor
The various technical fields such as treatment, military, industry and communication.
At work, provide energy by driving source makes gain media reach population inversion to laser, so as to gain
Light in bandwidth range provides light radiation and gain, and the laser of specific wavelength is generated under the feedback of resonant cavity.
Since existing laser is can only operate in mostly in specific wave-length coverage, if it is desired to obtaining being located at difference simultaneously
The laser light source of service band then needs more different separate lasers, inconvenient to use.
Summary of the invention
In view of this, realizing the purpose of the present invention is to provide a kind of laser that can be exported across wave band while output being more
The light wave of kind different-waveband.
In a first aspect, the embodiment of the invention provides a kind of laser that can be exported across wave band, including resonant cavity, it is described humorous
It include multiple laser output precisions in vibration chamber；Each laser output precision exports the light wave of corresponding predetermined wavelength；
The laser output precision includes: gain media, video stretching component, light wave extracting parts and light splitting part；
The gain media carries out power amplification and the video stretching component to input light wave and carries out to input light wave
Video stretching obtains target light wave, and the target light wave is sent to the light wave extracting parts；The target light wave includes
The light wave of the corresponding predetermined wavelength of laser output precision belonging to the video stretching component and the gain media；
The light wave extracting parts extracts laser output group belonging to the light wave extracting parts from the target light wave
The light wave of the corresponding predetermined wavelength of part, and the light splitting part is sent to by obtained light wave is extracted；
Received light wave is carried out light-splitting processing by the light splitting part, using obtained part light wave as the light splitting part
Remaining light wave is sent to other laser output precisions by the output light wave of affiliated laser output precision.
With reference to first aspect, the embodiment of the invention provides the first possible embodiments of first aspect, wherein
Gain media in each laser output precision is used to carry out power amplification to the light wave of corresponding wavelength.
With reference to first aspect, the embodiment of the invention provides second of possible embodiments of first aspect, wherein institute
Stating laser output precision further includes dispersion compensation module；
Each laser output precision is according to dispersion compensation module, video stretching component, gain media, light wave extraction unit
The first of part and light splitting part is sequentially connected with；
The dispersion compensation module carries out dispersion compensation to input light wave, and the light wave that dispersion compensation is obtained is sent to institute
State video stretching component；
The video stretching component carries out video stretching, and the light that video stretching is obtained to the light wave that dispersion compensation obtains
Wave is sent to the gain media and carries out power amplification.
The possible embodiment of second with reference to first aspect, the embodiment of the invention provides the third of first aspect
Possible embodiment, wherein the laser output precision further includes dispersion compensation module；
Each laser output precision is according to gain media, dispersion compensation module, video stretching component, light wave extraction unit
Second sequence of part and light splitting part is arranged successively；
The gain media carries out power amplification to input light wave, and the light wave that power amplification is obtained is sent to the color
Dissipate compensating unit；
The dispersion compensation module carries out dispersion compensation, and the light that dispersion compensation is obtained to the light wave that power amplification obtains
Wave is sent to the video stretching component and carries out video stretching.
Second of possible embodiment in reference to first aspect, the embodiment of the invention provides the 4th kind of first aspect
Possible embodiment, wherein the light wave extraction unit in laser output precision belonging to the gain media, the gain media
The central wavelength of light splitting part in laser output precision belonging to part and the gain media is equal.
The possible embodiment of the third in reference to first aspect, the embodiment of the invention provides the 5th kind of first aspect
Possible embodiment, wherein the gain media being connected, preposition with laser output precision belonging to the gain media
The light wave extracting parts in laser output precision in optical path, and be connected with laser output precision belonging to the gain media
, the central wavelength of light splitting part in laser output precision in preposition optical path it is equal.
With reference to first aspect, the embodiment of the invention provides the 6th kind of possible embodiments of first aspect, wherein institute
Stating video stretching component is highly nonlinear optical fiber or optical waveguide.
With reference to first aspect, the embodiment of the invention provides the 7th kind of possible embodiments of first aspect, wherein institute
Stating light splitting part includes photo-coupler or spectroscope.
With reference to first aspect, the embodiment of the invention provides the 8th kind of possible embodiments of first aspect, wherein
The resonant cavity further includes at least one reflector part；
The reflection component reflects the light wave in the resonant cavity.
With reference to first aspect, the embodiment of the invention provides the 9th kind of possible embodiments of first aspect, wherein institute
Stating light wave extracting parts includes bandpass filter.
The laser that one kind provided in an embodiment of the present invention can be exported across wave band, including resonant cavity include more in resonant cavity
A laser output precision；Each laser output precision exports the light wave of corresponding predetermined wavelength；Laser output precision includes: gain
Medium, video stretching component, light wave extracting parts and light splitting part；Gain media to input light wave carry out power amplification and
Video stretching component carries out video stretching to input light wave, obtains target light wave, and target light wave is sent to light wave extraction unit
Part；Light wave extracting parts extracts the corresponding predetermined wavelength of laser output precision belonging to light wave extracting parts from target light wave
Light wave, and be sent to light splitting part for obtained light wave is extracted；Received light wave is carried out light-splitting processing by light splitting part, will
Output light wave of the part light wave arrived as laser output precision belonging to light splitting part, is sent to its separate excitation for remaining light wave
Light output component.One kind provided in an embodiment of the present invention can be default in same resonant cavity across the laser input light wave that wave band exports
To conversion, multiple laser output precisions are respectively processed input light wave, obtain the light wave of different-waveband, so that same laser
The light wave of a variety of different-wavebands of output in device.
To enable the above objects, features and advantages of the present invention to be clearer and more comprehensible, preferred embodiment is cited below particularly, and cooperate
Appended attached drawing, is described in detail below.
Detailed description of the invention
In order to illustrate the technical solution of the embodiments of the present invention more clearly, below will be to needed in the embodiment attached
Figure is briefly described, it should be understood that the following drawings illustrates only certain embodiments of the present invention, therefore is not construed as pair
The restriction of range for those of ordinary skill in the art without creative efforts, can also be according to this
A little attached drawings obtain other relevant attached drawings.
Fig. 1 shows the structural schematic diagram for the laser that one kind provided by the embodiment of the present invention can be exported across wave band；
Fig. 2 shows the structural schematic diagrams for the laser that another kind provided by the embodiment of the present invention can be exported across wave band；
Fig. 3 shows the structural schematic diagram for the laser that another kind provided by the embodiment of the present invention can be exported across wave band；
Fig. 4 shows the structural schematic diagram for the laser that another kind provided by the embodiment of the present invention can be exported across wave band.
Icon:
100, resonant cavity；101, the first gain media；102, the first video stretching component；103, the first light wave extraction unit
Part；104, the first light splitting part；105, the second gain media；106, the second video stretching component；107, the second light wave extraction unit
Part；108, the second light splitting part；
200, ring resonator；201, the first highly nonlinear optical fiber；202, the first fiber amplifier；203, the filter of the first band logical
Wave device；204, the first photo-coupler；205, the second highly nonlinear optical fiber；206, the second fiber amplifier；207, the filter of the second band logical
Wave device；208, the second photo-coupler；
300, linear resonant cavity；301, the first reflecting mirror；302, the second photo-coupler；303, the first bandpass filter；
304, the first optical circulator；305, the first fiber amplifier；306, the first highly nonlinear optical fiber；307, the second optical circulator；
308, the second fiber amplifier；309, the second highly nonlinear optical fiber；310, the second bandpass filter；311, the first photo-coupler；
312, the second reflecting mirror；
401, thulium doped fiber amplifier；402, the first dispersion compensating fiber；403, the first highly nonlinear optical fiber；404, first
Bandpass filter；405, the first photo-coupler；406, erbium-doped fiber amplifier；407, the second dispersion compensating fiber；408, second
Highly nonlinear optical fiber；409, the second bandpass filter；410, the second photo-coupler；411, ytterbium doped optical fiber amplifier；412, third
Dispersion compensating fiber；413, third highly nonlinear optical fiber；414, third bandpass filter；415, third photo-coupler；416, it mixes
Doped fiber amplifier；417, the 4th dispersion compensating fiber；418, the 4th highly nonlinear optical fiber；419, the 4th bandpass filter；
420, the 4th photo-coupler.
Specific embodiment
In order to make the object, technical scheme and advantages of the embodiment of the invention clearer, below in conjunction with the embodiment of the present invention
Middle attached drawing, technical scheme in the embodiment of the invention is clearly and completely described, it is clear that described embodiment is only
It is a part of the embodiment of the present invention, instead of all the embodiments.The present invention being usually described and illustrated herein in the accompanying drawings is real
The component for applying example can be arranged and be designed with a variety of different configurations.Therefore, of the invention to what is provided in the accompanying drawings below
The detailed description of embodiment is not intended to limit the range of claimed invention, but is merely representative of selected reality of the invention
Apply example.Based on the embodiment of the present invention, those skilled in the art institute obtained without making creative work
There are other embodiments, shall fall within the protection scope of the present invention.
As shown in Figure 1, for the laser that one kind provided by the embodiments of the present application can be exported across wave band, including two laser are defeated
Component out.It should be understood that introducing for convenience, resonant cavity illustrates only two laser output precisions here.Specific real
Shi Zhong, the laser output precision in resonant cavity can be multiple.
It is shown in Fig. 1 it is a kind of can be in the structural schematic diagram across the laser that wave band exports, resonant cavity 100 includes first swashing
Light output component and second laser output precision, first laser output precision include the first gain media 101, the first video stretching
Component 102, the first light wave extracting parts 103 and the first light splitting part 104；Second laser output precision is situated between including the second gain
Matter 105, the second video stretching component 106, the second light wave extracting parts 107 and the second light splitting part 108.
In specific implementation, the first gain media 101 is different with the second gain media 105.Because inputting light wave warp
It crosses gain media and carries out power amplification, the light-wave band range that different gain medias obtain after power amplification is different
's.
In specific implementation, needed in gain media doped with specific rare earth ion it is rear-earth-doped to input light wave into
Row power amplification, the gain band that every kind of rare earth ion can be provided by the material atom level structure of corresponding rare earth ion Lai
It determines, laser caused by Rear Earth Doped Fiber Laser each in this way is limited to the gain media of the laser, therefore can only
Work is in specific wave-length coverage.That is, to obtain the light wave of different-waveband range, that adulterates in gain media is dilute
Native ion is different, therefore the gain media in different laser output precisions is different.
In specific implementation, the first light wave extracting parts 103 and the second light wave extracting parts 107 are also different, different
Light wave extracting parts extract light-wave band range be different.
Working principle: after the first gain media 101, the first 101 pairs of gain media input light wave carries out input light wave
Power amplification, then the first video stretching component carries out video stretching to input light wave, obtains first object light wave, then again will
First object light wave is sent to the first light wave extracting parts 103, and the first light wave extracting parts 103 is extracted from first object light wave
The light wave of the affiliated corresponding predetermined wavelength of first laser output precision, and described first point is sent to by obtained light wave is extracted
Light component 104；Received light wave is carried out light-splitting processing by the first light splitting part 104, using obtained part light wave as first point
Remaining light wave is sent to second laser output precision by the output light wave of first laser output precision belonging to light component 104
The second gain media 105 so that the second gain media 105 of second laser output precision carries out the power of remaining light wave
Power amplification, then 106 pairs of input light waves of the second video stretching component carry out video stretching, obtain the second target light wave, and will
Light wave after carrying out power amplification and video stretching is sent to the second light wave extracting parts 107, and the second light wave extracting parts 107 mentions
The light wave of the affiliated corresponding predetermined wavelength of second laser output precision is taken, and is sent to the second light splitting for obtained light wave is extracted
Received light wave is carried out light-splitting processing by component 108, the second light splitting part 108, using obtained part light wave as the second light splitting
Remaining light wave is sent to first laser output group by the output light wave of second laser output precision belonging to component 108 again
First gain media 101 of part, circuits sequentially.
By the above-mentioned laser that can be exported across wave band, input light wave may be implemented on the light wave of different wave length toward wraparound
It changes, to realize that relevant effect occurs for the light wave of multiple wave bands.
In specific implementation, gain media can be fiber amplifier；Video stretching component can be highly nonlinear optical fiber
Or optical waveguide, video stretching component can broaden light wave to the service band that can cover the gain media in postposition optical path；
Light wave extracting parts can be bandpass filter；Light splitting part includes photo-coupler or spectroscope.
Specifically, the laser that one kind provided by the embodiments of the present application can be exported across wave band, resonant cavity can be designed as ring
Shape chamber, multiple laser output precisions are arranged successively to form ring structure.Another laser that can be exported across wave band as shown in Figure 2
Device, including ring resonator 200, include first laser output precision and second laser output precision in ring resonator 200, the
The first highly nonlinear optical fiber 201, the first fiber amplifier 202, the first band logical in one laser output precision comprising being arranged successively
Filter 203 and the first photo-coupler 204；The second highly nonlinear optical fiber in second laser output precision comprising being arranged successively
205, the second fiber amplifier 206, the second bandpass filter 207 and the second photo-coupler 208, the connection of the first photo-coupler 204
Second highly nonlinear optical fiber 205, the second photo-coupler 208 connect the first fiber amplifier 202, and above-mentioned component head and the tail are arranged successively
Form ring structure.
When resonant cavity is annular chamber, light wave can realize round-trip conversion in annular chamber, therefore light wave is in annular resonance
Intracavitary is one way propagation.
Resonant cavity may be designed in linear cavity, and multiple laser output precisions are arranged successively to form linear structure.Work as resonance
When chamber is linear cavity, in order to realize the round-trip conversion of light wave, optical circulator can be increased in resonant cavity and realize the two-way biography of light wave
It broadcasts.
Specifically, the first reflection component and the second reflection component, the first reflecting part can also be set in resonant cavity
Part and the second reflection component reflect the light wave in resonant cavity.Such as one reflecting mirror is respectively set at the both ends of resonant cavity.
Another laser that can be exported across wave band as shown in Figure 3, including linear resonant cavity 300, linear resonant cavity 300
Including the first reflecting mirror 301, the second photo-coupler 302, the first bandpass filter 303, the first optical circulator 304, the first optical fiber
Amplifier 305, the first highly nonlinear optical fiber 306, the second optical circulator 307, the second fiber amplifier 308, the second high non-linearity
Optical fiber 309, the second bandpass filter 310, the first photo-coupler 311 and the second reflecting mirror 312.
Wherein, the first optical circulator 304, the first fiber amplifier 305, the first highly nonlinear optical fiber 306, the second ring of light shape
Device 307, the second fiber amplifier 308 and 309 head and the tail of the second highly nonlinear optical fiber are sequentially arranged, and form an annular element.
First reflecting mirror 301, the second photo-coupler 302, the first bandpass filter 303, annular element, the second bandpass filtering
312 linear array of device 310, the first photo-coupler 311 and the second reflecting mirror forms linear resonant cavity.
It in specific implementation, may include by the in linear resonant cavity when the wavelength of light wave to be output difference is larger
One optical circulator, the first fiber amplifier, the first highly nonlinear optical fiber, the second optical circulator, the second fiber amplifier and second
The annular element that highly nonlinear optical fiber is formed.It, can be only in linear resonant cavity when the wavelength of light wave to be output is not much different
Including linearly aligned first reflecting mirror, the first bandpass filter, fiber amplifier, highly nonlinear optical fiber, the first bandpass filtering
Device and the second reflecting mirror.
For convenience, below will be by taking ring resonator as an example, specifically introducing one kind provided by the embodiments of the present application can
Laser across wave band output.
It should be understood that when in resonant cavity including multiple laser output precisions, multiple laser output precision head and the tail
It is sequentially connected with, forms an annular.Different laser output precisions can be different with output waveband light wave.
Specifically, video stretching component can carry out video stretching to input light wave；Gain media carries out input light wave
Power amplification.
The arrangement position of video stretching component and gain media can be replaced, i.e., video stretching component and gain media have two
Kind puts in order.In order to distinguish two kinds put in order under video stretching component and gain media, it is herein, the first arrangement is suitable
Video stretching component and gain media under sequence are named as the first video stretching component and the first gain media, and second is arranged
Video stretching component and gain media under sequence are named as the second video stretching component and the second gain media.
The first puts in order are as follows: video stretching component is before gain media.In the case where the first puts in order, to defeated
Enter the treatment process of light wave are as follows: video stretching component first carries out video stretching, and the light that video stretching is obtained to input light wave
Wave is sent to gain media, and gain media carries out power amplification to the light wave received again.
It puts in order for second are as follows: gain media is before video stretching component.In the case where second puts in order, to defeated
Enter the treatment process of light wave are as follows: gain media first carries out power amplification to input light wave, and power amplification is obtained light wave and is sent
To video stretching component, video stretching component carries out video stretching to the light wave received again.
Above two put in order is compared: the first puts in order down, and the energy conversion efficiency of laser is lower.
Because second puts in order down, when gain media is arranged in front of video stretching component, gain media can be to all
Input light wave carry out power amplification.When the spectrum width in light wave extracting parts is less than the gain spectrum of video stretching component
When, the light wave for having carried out power amplification can be filtered out, to waste the energy of light wave.But in the case where second puts in order,
The pulse frequency spectrum peak value that light wave obtains after light wave extracting parts is higher, and spectral shape is more satisfactory.
In the case where the first puts in order, gain media, the light wave extraction unit in laser output precision belonging to gain media
The central wavelength of light splitting part in laser output precision belonging to part and gain media is equal.
In the case where second puts in order, gain media, light be connected with laser output precision belonging to gain media, preposition
Light wave extracting parts in the laser output precision of road, and be connected with laser output precision belonging to gain media, it is preceding
The central wavelength for setting the light splitting part in the laser output precision in optical path is equal.
When the intracavitary optical wavelength interval of annular resonance is bigger, it is necessary to generate very wide frequency spectrum, such light wave
After carrying out power amplification in the gain medium, dispersion and nonlinear effect due to medium can be such that the time domain waveform of light wave sends out
Raw distortion.Therefore it before carrying out video stretching to light wave, needs to carry out dispersion compensation to light wave.It therefore, can be defeated in laser
Dispersion compensation module is set in component out.In specific implementation, before dispersion compensation module being arranged in video stretching component
Face.
Optionally, in the case where the first puts in order, dispersion compensation module is arranged in front of video stretching component, video stretching
Arrangement of parts is before gain media.
Working principle are as follows: dispersion compensation module carries out dispersion compensation, and the light wave that dispersion compensation is obtained to input light wave
It is sent to video stretching component, video stretching component carries out video stretching to the light wave received, and video stretching is obtained
Light wave is sent to gain media, and gain media carries out power amplification to the light wave received again.
Optionally, in the case where second puts in order, gain media is arranged in front of dispersion compensation module, dispersion compensation module
It is arranged in front of video stretching component.
Working principle are as follows: gain media carries out power amplification to input light wave, and the light wave that power amplification is obtained is sent
To dispersion compensation module, dispersion compensation module carries out dispersion compensation to the light wave that power amplification obtains, and dispersion compensation is obtained
Light wave be sent to video stretching component, video stretching component carries out video stretching to received light wave.
In specific implementation, specific rare earth ion can be adulterated in fiber amplifier, form rare-earth doped optical fibre, no
Same rare earth ion can determine the laser works in the light wave of which kind of wavelength.Such as the laser work of ytterbium doped optical fiber amplifier
Make near 1 micron wave length, the laser works of erbium-doped fiber amplifier are near 1.5 micron wave lengths, thulium doped fiber amplifier
Laser works near 2 micron wave lengths.In actual operation, can according to need selection fiber amplifier in adulterate it is dilute
Native ion.
When resonant cavity includes multiple laser output precisions, the rare earth ion of fiber amplifier doping is all different.
Below will be by a specific embodiment, one kind provided by the embodiment of the present application is discussed in detail can be defeated across wave band
Laser out, the structural schematic diagram of another laser that can be exported across wave band as shown in Figure 4.
The laser can work in three wavelength of 2000nm, 1550nm and 1060nm, and the laser includes mixing
Thulium fiber amplifier 401, the first dispersion compensating fiber 402, the first highly nonlinear optical fiber 403, the first bandpass filter 404,
One photo-coupler 405, erbium-doped fiber amplifier 406, the second dispersion compensating fiber 407, the second highly nonlinear optical fiber 408, second
Bandpass filter 409, the second photo-coupler 410, ytterbium doped optical fiber amplifier 411, third dispersion compensating fiber 412, third Gao Fei
Linear optical fiber 413, third bandpass filter 414, third photo-coupler 415, erbium-doped fiber amplifier 416, the 4th dispersion compensation
Optical fiber 417, the 4th highly nonlinear optical fiber 418, the 4th bandpass filter 419 and the 4th photo-coupler 420, above-mentioned component is successively
One annular of arrangement and formation.
Working principle can be with are as follows: after input light wave enters the laser that can be exported across wave band, thulium doped fiber amplifier 401
Power amplification first is carried out to input light wave, the light wave that power amplification obtains passes through 402 dispersion compensation of the first dispersion compensating fiber, color
It dissipates compensated light wave and carries out video stretching using the first highly nonlinear optical fiber 403, passed through by the light wave that video stretching obtains
It crosses the first bandpass filter 404 that central wavelength is 1550nm and obtains the light wave that central wavelength is 1550nm, finally pass through first
Photo-coupler 405 exports, and obtains the light wave that central wavelength is 1550nm, and remaining light wave is sent to by the first photo-coupler 405
Erbium-doped fiber amplifier 406, erbium-doped fiber amplifier 406 carry out power amplification, the light that power amplification obtains to remaining light wave
Wave passes through 407 dispersion compensation of the second dispersion compensating fiber, the light wave after dispersion compensation using the second highly nonlinear optical fiber 408 into
Line frequency spectrum widening, the light wave obtained by video stretching obtain center by the bandpass filter 409 that central wavelength is 1060nm
Wavelength is the light wave of 1060nm, is finally exported by the second photo-coupler 410, and the light wave that central wavelength is 1060nm is obtained, the
Remaining light wave is sent to ytterbium doped optical fiber amplifier 411 by two photo-couplers 410, and ytterbium doped optical fiber amplifier 411 is to remaining light
Wave carries out power amplification, and the light wave that power amplification obtains passes through 412 dispersion compensation of third dispersion compensating fiber, after dispersion compensation
Light wave carries out video stretching using third highly nonlinear optical fiber 413, and the light wave obtained by video stretching is by central wavelength
The light wave that central wavelength is 1550nm is obtained for the bandpass filter 414 of 1550nm, it is finally defeated by third photo-coupler 415
Out, the light wave that central wavelength is 1550nm is obtained, remaining light wave is sent to erbium-doped fiber amplifier by third photo-coupler 415
416, erbium-doped fiber amplifier 416 carries out power amplification to remaining light wave, and the light wave that power amplification obtains passes through the 4th dispersion
417 dispersion compensation of compensated optical fiber, the light wave after dispersion compensation carry out video stretching, warp using the 4th highly nonlinear optical fiber 418
Crossing the light wave that video stretching obtains and obtaining central wavelength by the bandpass filter 419 that central wavelength is 2000nm is 2000nm's
Light wave is finally exported by the 4th photo-coupler 420, obtains the light wave that central wavelength is 2000nm, and the 4th photo-coupler 420 will
Remaining light wave is sent to thulium doped fiber amplifier 401, circuits sequentially.
It should also be noted that similar label and letter indicate similar terms in following attached drawing, therefore, once a certain Xiang Yi
It is defined in a attached drawing, does not then need that it is further defined and explained in subsequent attached drawing.
In the description of the present invention, it should be noted that term " center ", "upper", "lower", "left", "right", "vertical",
The orientation or positional relationship of the instructions such as "horizontal", "inner", "outside" is to be based on the orientation or positional relationship shown in the drawings, or be somebody's turn to do
Invention product using when the orientation or positional relationship usually put, be merely for convenience of description of the present invention and simplification of the description, without
It is that the device of indication or suggestion meaning or element must have a particular orientation, be constructed and operated in a specific orientation, therefore not
It can be interpreted as limitation of the present invention.In addition, term " first ", " second ", " third " etc. are only used for distinguishing description, and cannot manage
Solution is indication or suggestion relative importance.
In the description of the present invention, it is also necessary to which explanation is unless specifically defined or limited otherwise, term " setting ",
" installation ", " connected ", " connection " shall be understood in a broad sense, for example, it may be fixedly connected, may be a detachable connection or one
Connect to body；It can be mechanical connection, be also possible to be electrically connected；It can be directly connected, it can also be indirect by intermediary
It is connected, can be the connection inside two elements.For the ordinary skill in the art, on being understood with concrete condition
State the concrete meaning of term in the present invention.
Finally, it should be noted that embodiment described above, only a specific embodiment of the invention, to illustrate the present invention
Technical solution, rather than its limitations, scope of protection of the present invention is not limited thereto, although with reference to the foregoing embodiments to this hair
It is bright to be described in detail, those skilled in the art should understand that: anyone skilled in the art
In the technical scope disclosed by the present invention, it can still modify to technical solution documented by previous embodiment or can be light
It is readily conceivable that variation or equivalent replacement of some of the technical features；And these modifications, variation or replacement, do not make
The essence of corresponding technical solution is detached from the spirit and scope of technical solution of the embodiment of the present invention.Should all it cover in protection of the invention
Within the scope of.Therefore, the protection scope of the present invention shall be subject to the protection scope of the claims.
Claims (10)
1. the laser that one kind can be exported across wave band, including resonant cavity, which is characterized in that include multiple laser in the resonant cavity
Output precision；Each laser output precision exports the light wave of corresponding predetermined wavelength；
The laser output precision includes: gain media, video stretching component, light wave extracting parts and light splitting part；
The gain media carries out power amplification and the video stretching component to input light wave and carries out frequency spectrum to input light wave
Broadening, obtains target light wave, and the target light wave is sent to the light wave extracting parts；The target light wave includes described
The light wave of the corresponding predetermined wavelength of laser output precision belonging to video stretching component and the gain media；
The light wave extracting parts extracts laser output precision pair belonging to the light wave extracting parts from the target light wave
The light wave for the predetermined wavelength answered, and the light splitting part is sent to by obtained light wave is extracted；
Received light wave is carried out light-splitting processing by the light splitting part, using obtained part light wave as belonging to the light splitting part
Laser output precision output light wave, remaining light wave is sent to other laser output precisions.
2. the laser according to claim 1 that can be exported across wave band characterized by comprising each laser output group
Gain media in part is used to carry out power amplification to the light wave of corresponding wavelength.
3. the laser according to claim 1 that can be exported across wave band, which is characterized in that the laser output precision also wraps
Include dispersion compensation module；
Each laser output precision according to dispersion compensation module, video stretching component, gain media, light wave extracting parts with
And the first sequence of light splitting part is arranged successively；
The dispersion compensation module carries out dispersion compensation to input light wave, and the light wave that dispersion compensation is obtained is sent to the frequency
Spectrum widening component；
The video stretching component carries out video stretching to the light wave that dispersion compensation obtains, and the light wave that video stretching is obtained is sent out
It gives the gain media and carries out power amplification.
4. the laser according to claim 1 that can be exported across wave band, which is characterized in that the laser output precision also wraps
Include dispersion compensation module；
Each laser output precision according to gain media, dispersion compensation module, video stretching component, light wave extracting parts with
And the second sequence of light splitting part is arranged successively；
The gain media carries out power amplification to input light wave, and the light wave that power amplification is obtained is sent to the dispersion and mends
Repay component；
The dispersion compensation module carries out dispersion compensation to the light wave that power amplification obtains, and the light wave that dispersion compensation is obtained is sent out
It send to the video stretching component and carries out video stretching.
5. the laser according to claim 3 that can be exported across wave band, which is characterized in that the gain media, the increasing
In laser output precision belonging to light wave extracting parts and the gain media in laser output precision belonging to beneficial medium
Light splitting part central wavelength it is equal.
6. the laser according to claim 4 that can be exported across wave band, which is characterized in that the gain media, and it is described
The light wave extracting parts in laser output precision in optical path that laser output precision belonging to gain media is connected, preposition, with
And the light splitting part in laser output precision be connected with laser output precision belonging to the gain media, in preposition optical path
Central wavelength it is equal.
7. the laser according to claim 1 that can be exported across wave band, which is characterized in that the video stretching component is height
Nonlinear optical fiber or optical waveguide.
8. the laser according to claim 1 that can be exported across wave band, which is characterized in that the light splitting part includes optocoupler
Clutch or spectroscope.
9. the laser according to claim 1 that can be exported across wave band, which is characterized in that the resonant cavity further includes at least
One reflection component；
The reflection component reflects the light wave in the resonant cavity.
10. the laser according to claim 1 that can be exported across wave band, which is characterized in that the light wave extracting parts packet
Include bandpass filter.
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