CN113839298B - Light beam processor, light beam processing method, storage medium, and electronic apparatus - Google Patents
Light beam processor, light beam processing method, storage medium, and electronic apparatus Download PDFInfo
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- CN113839298B CN113839298B CN202111408947.2A CN202111408947A CN113839298B CN 113839298 B CN113839298 B CN 113839298B CN 202111408947 A CN202111408947 A CN 202111408947A CN 113839298 B CN113839298 B CN 113839298B
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
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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
- H01S3/005—Optical devices external to the laser cavity, specially adapted for lasers, e.g. for homogenisation of the beam or for manipulating laser pulses, e.g. pulse shaping
- H01S3/0071—Beam steering, e.g. whereby a mirror outside the cavity is present to change the beam direction
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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
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10007—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating in optical amplifiers
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Abstract
The invention discloses a light beam processor, a light beam processing method, a storage medium and an electronic device, wherein the light beam processor comprises: the device comprises a light beam splitting device, a light beam control device, a light beam transmission device and a light beam combining and outputting device; the beam splitting device is used for splitting the received original beams to obtain the beams with the target quantity; the light beam control device is used for carrying out repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; the light beam transmission device is used for transmitting a second number of light beams in the target number of light beams to obtain a second number of transmitted light beams; the beam combination output device is used for carrying out beam combination processing on the first number of control beams and the second number of transmission beams to obtain target beams and outputting the target beams. By adopting the technical scheme, the problems that the adjusting process of the repetition frequency interval of the light beam generated by the light beam processor is complex and the like in the related technology are solved.
Description
Technical Field
The present invention relates to the field of beam processing, and in particular, to a beam processor, a beam processing method, a storage medium, and an electronic apparatus.
Background
The optical fiber laser has the advantages of good beam quality, high efficiency, good heat dissipation, compact structure, high reliability, easy maintenance and the like, and the working waveband of the optical fiber laser can cover ultraviolet to infrared rays by doping different rare earth elements, so the optical fiber laser is widely concerned by people.
In the current production manufacturing process, light beams with various properties are sometimes required to achieve the required functions in practical applications, and the current mode of generating the light beams with various properties is generally synthesized by using a plurality of light beams with single properties, which results in that the properties of the finally formed light beams with various properties may be unstable, and the repetition frequency interval adjusting process is complicated.
Aiming at the problems that the adjusting process of the repetition frequency interval of the light beam generated by the light beam processor is complex and the like in the related art, an effective solution is not provided yet.
Disclosure of Invention
The embodiment of the invention provides a light beam processor, a light beam processing method, a storage medium and an electronic device, which are used for at least solving the problems that the adjustment process of the repetition frequency interval of a light beam generated by the light beam processor is complex and the like in the related art.
According to an embodiment of the present invention, there is provided an optical beam processor including: the device comprises a light beam splitting device, a light beam control device, a light beam transmission device and a light beam combining and outputting device, wherein the light beam control device and the light beam transmission device are respectively connected between the light beam splitting device and the light beam combining and outputting device; the beam splitting device is used for splitting the received original beams to obtain beams with target quantity; the light beam control device is used for carrying out repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; the light beam transmission device is used for transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number; the light beam combining and outputting device is used for combining the first number of control light beams and the second number of transmission light beams to obtain target light beams and outputting the target light beams.
In one exemplary embodiment, the beam splitting apparatus includes: a first optical isolator, a first amplifier and a beam splitter, wherein the first amplifier is connected to the first optical isolator and the beam splitter is connected between the first amplifier and the beam control device; the first optical isolator is used for carrying out optical isolation processing on the original light beam to obtain an isolated light beam; the first amplifier is used for amplifying the isolated light beam to obtain a first amplified light beam; the beam splitter is configured to split the first amplified light beam into the target number of light beams.
In one exemplary embodiment, the beam control apparatus includes: the first number of beam controllers, wherein each of the beam controllers comprises a beam modulator and a second amplifier, the beam modulator being connected to the beam splitting apparatus, the second amplifier being connected between the beam modulator and the beam combining output apparatus; the light beam modulator is used for carrying out repetition frequency modulation on one light beam in the first number of light beams to obtain a modulated light beam; the second amplifier is configured to amplify the one modulated light beam to obtain one control light beam.
In one exemplary embodiment, the optical beam delivery apparatus includes: said second number of third amplifiers, wherein each of said third amplifiers is connected between said beam splitting means and said beam combining output means; each of the third amplifiers is configured to amplify one of the second number of beams to obtain one of the transmission beams.
In an exemplary embodiment, a sum of a first total power of the first number of control beams and a second total power of the second number of transmission beams is a target power, and the target power is a preset power of the target beam.
In one exemplary embodiment, the beam combining output device includes: the beam combiner is connected with the light beam control device and the light beam transmission device, and the mode stripper is connected between the beam combiner and the second optical isolator; the beam combiner is used for combining the first number of control beams and the second number of transmission beams to obtain combined beams; the die stripper is used for stripping the combined beam to obtain a stripped beam; and the second optical isolator is used for carrying out optical isolation treatment on the mode stripping light beam to obtain the target light beam and outputting the target light beam.
According to another embodiment of the present invention, there is also provided a method for processing a light beam, including: carrying out beam splitting treatment on the received original light beams to obtain light beams with target quantity; performing repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number; and combining the first number of control beams and the second number of transmission beams to obtain target beams, and outputting the target beams.
In an exemplary embodiment, a first number of light beams of the target number of light beams are subjected to repetition frequency control, resulting in the first number of control light beams; and transmitting a second number of beams of the target number of beams to obtain the second number of transmitted beams, comprising: performing repetition frequency modulation on each light beam in the first number of light beams to obtain a first number of modulated light beams; amplifying each modulated light beam in the first number of modulated light beams to obtain a first number of control light beams, wherein the total power of the first number of control light beams is a first total power; and amplifying each light beam in the second number of light beams to obtain a second number of transmission light beams, wherein the total power of the second number of transmission light beams is a second total power, the sum of the first total power and the second total power is a target power, and the target power is a preset power of the target light beam.
According to still another aspect of the embodiments of the present invention, there is also provided a computer-readable storage medium having a computer program stored therein, wherein the computer program is configured to execute the above-mentioned processing method of the optical beam when running.
According to another aspect of the embodiments of the present invention, there is also provided an electronic device, including a memory, a processor, and a computer program stored in the memory and executable on the processor, wherein the processor executes the method for processing the light beam by the computer program.
In an embodiment of the present invention, a beam processor includes: the device comprises a light beam splitting device, a light beam control device, a light beam transmission device and a light beam combining and outputting device, wherein the light beam control device and the light beam transmission device are respectively connected between the light beam splitting device and the light beam combining and outputting device; the beam splitting device is used for splitting the received original beams to obtain the beams with the target quantity; the light beam control device is used for carrying out repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; the light beam transmission device is used for transmitting a second number of light beams in the target number of light beams to obtain a second number of transmitted light beams, wherein the target number is the sum of the first number and the second number; the beam combining and outputting device is used for combining the first quantity of control beams and the second quantity of transmission beams to obtain target beams and outputting the target beams, namely the beam splitting device is used for splitting the received original beams to obtain the target quantity of beams, and the target quantity of beams are split by the same original beam, so that the properties of the beams are the same, and the problems of strict time sequence requirements, high operation difficulty and the like caused by the difference of the original beams from the target quantity of beams in the subsequent synthesis process are solved. The first number of light beams in the target number of light beams are subjected to repetition frequency control through the light beam control device to obtain the first number of control light beams, the frequency of the first number of light beams in the target number of light beams can be regulated and controlled, and the first number of control light beams with adjustable repetition frequency intervals are obtained. The second number of light beams in the target number of light beams are transmitted through the light beam transmission device to obtain a second number of transmission light beams, the second number of transmission light beams keep the characteristics of the original light beams, the first number of control light beams and the second number of transmission light beams are combined through the light beam combining output device to obtain target light beams, and the target light beams have the frequency adjustable characteristics of the first number of control light beams and the characteristics of the original light beams kept by the second number of transmission light beams. By adopting the technical scheme, the problems that the adjusting process of the repetition frequency interval of the light beam generated by the light beam processor is complex and the like in the related technology are solved, and the technical effect of simplifying the adjusting process of the repetition frequency interval is realized.
Drawings
The accompanying drawings, which are included to provide a further understanding of the invention and are incorporated in and constitute a part of this specification, illustrate embodiments of the invention and together with the description serve to explain the invention and not to limit the invention. In the drawings:
FIG. 1 is a block diagram of an optical beam processor according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of the internal structure of a first amplification stage according to an embodiment of the invention;
fig. 3 is a schematic diagram of the internal structure of a third amplification stage according to an embodiment of the invention;
FIG. 4 is a schematic illustration of a combined target beam according to an embodiment of the invention;
fig. 5 is a schematic diagram of a fiber laser configuration according to an alternative embodiment of the present invention;
fig. 6 is a block diagram of a hardware configuration of a computer terminal of a method for processing a light beam according to an embodiment of the present invention;
FIG. 7 is a schematic illustration of a method of processing a light beam according to an embodiment of the invention;
fig. 8 is a block diagram of a device for processing a light beam according to an embodiment of the present invention.
Detailed Description
In order to make the technical solutions of the present invention better understood, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order. It is to be understood that the data so used is interchangeable under appropriate circumstances such that the embodiments of the invention described herein are capable of operation in sequences other than those illustrated or described herein. Furthermore, the terms "comprises," "comprising," and "having," and any variations thereof, are intended to cover a non-exclusive inclusion, such that a process, method, system, article, or apparatus that comprises a list of steps or elements is not necessarily limited to those steps or elements expressly listed, but may include other steps or elements not expressly listed or inherent to such process, method, article, or apparatus.
In the present embodiment, a beam processor is provided, and fig. 1 is a block diagram of a structure of a beam processor according to an embodiment of the present invention; as shown in fig. 1, includes: the optical system comprises a light beam splitting device 102, a light beam control device 104, a light beam transmission device 106 and a light beam combining output device 108, wherein the light beam control device 104 and the light beam transmission device 106 are respectively connected between the light beam splitting device 102 and the light beam combining output device 108; the beam splitting device 102 is configured to split the received original light beams to obtain light beams of a target number; the light beam control device 104 is configured to perform repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; the light beam transmission device 106 is configured to transmit a second number of light beams in the target number of light beams, so as to obtain the second number of transmitted light beams, where the target number is a sum of the first number and the second number; the beam combining and outputting device 108 is configured to perform beam combining processing on the first number of control beams and the second number of transmission beams to obtain target beams, and output the target beams.
Through the embodiment, the beam splitting device performs beam splitting processing on the received original beams to obtain the beams with the target quantity, and each beam with the target quantity is obtained by splitting the same original beam, so that the beams have the same property, and the problems of strict time sequence requirements, high operation difficulty and the like caused by the difference of the original beams from the beams with the target quantity in the subsequent synthesis process are solved. The first number of light beams in the target number of light beams are subjected to repetition frequency control through the light beam control device to obtain the first number of control light beams, the frequency of the first number of light beams in the target number of light beams can be regulated and controlled, and the first number of control light beams with adjustable repetition frequency intervals are obtained. The second number of light beams in the target number of light beams are transmitted through the light beam transmission device to obtain a second number of transmission light beams, the second number of transmission light beams keep the characteristics of the original light beams, the first number of control light beams and the second number of transmission light beams are combined through the light beam combining output device to obtain target light beams, and the target light beams have the frequency adjustable characteristics of the first number of control light beams and the characteristics of the original light beams kept by the second number of transmission light beams. By adopting the technical scheme, the problems that the adjusting process of the repetition frequency interval of the light beam generated by the light beam processor is complex and the like in the related technology are solved, and the technical effect of simplifying the adjusting process of the repetition frequency interval is realized.
Optionally, in this embodiment, the primary beam received by the beam splitting apparatus may be, but is not limited to being, emitted by a light-emitting seed source (e.g., a semiconductor seed source, etc.), which may be, but is not limited to being, a component of the beam processor disposed in the beam processor, or which may also be, but is not limited to being, a device disposed separately from the beam processor.
Optionally, in this embodiment, the original light beam received by the light beam splitting device may be emitted by a single light-emitting seed source, and the target number of light beams have the same frequency characteristic.
In one exemplary embodiment, the beam splitting apparatus includes: a first optical isolator, a first amplifier and a beam splitter, wherein the first amplifier is connected to the first optical isolator and the beam splitter is connected between the first amplifier and the beam control device; the first optical isolator is used for carrying out optical isolation processing on the original light beam to obtain an isolated light beam; the first amplifier is used for amplifying the isolated light beam to obtain a first amplified light beam; the beam splitter is configured to split the first amplified light beam into the target number of light beams.
Optionally, in this embodiment, the first optical isolator is configured to perform optical isolation processing on the received original light beam. Such as: the first optical isolator may be, but is not limited to being, a polarization independent optical isolator.
Optionally, in this embodiment, the first amplifier amplifies the isolated beam output by the first optical isolator. The first amplifier may include, but is not limited to, one or more amplification stages, and if it includes a plurality of amplification stages, the plurality of amplification stages may be identical or different in structure.
Such as: the first amplifier may include, but is not limited to, N amplification stages, where N is greater than or equal to 2, and the isolated light beam is amplified step by step, and for convenience of description in this embodiment, N is 2, that is, the first amplifier includes a first amplification stage F1 and a second amplification stage F2.
Fig. 2 is a schematic diagram of an internal structure of a first amplifier stage according to an embodiment of the present invention, as shown in fig. 2, the first amplifier stage may include, but is not limited to, a first amplifier stage and a second amplifier stage, the first amplifier stage includes at least: a first pump source 2-1, a first fiber coupler 2-2, a first gain fiber 2-3, and a second optical isolator 2-4. The connection mode of each device may include, but is not limited to, type (a), type (b) and type (c). The connection mode of type (a) may be, but is not limited to: the signal end of the first optical fiber coupler 2-2 is connected with one end of a first optical isolator; the first pump source 2-1 is connected with the pump input end of the first optical fiber coupler 2-2; the common end of the first optical fiber coupler 2-2 is connected with one end of a first gain optical fiber 2-3; the other end of the first gain fiber 2-3 is connected with one end of a second optical isolator 2-4; the other end of the second opto-isolator 2-4 is connected to a second amplifier stage F2, which is similar in construction and connection to the first amplifier stage, except that: the signal end of the optical fiber coupler in the second amplification stage is connected with one end of the optical isolator in the first amplification stage; the other end of the optical isolator in the second amplification stage is connected with the common end of the optical fiber beam splitter. The connection mode of type (b) may be, but is not limited to: the first fiber coupler 2-2, the first pump source 2-1 and the first gain fiber 2-3 are transposed on the basis of type (a). The connection mode of type (c) may be, but is not limited to: a pump source 2-6 and a fiber coupler 2-7 are added between the first gain fiber 2-3 and the second optical isolator 2-4 on the type (a) configuration.
Alternatively, in the present embodiment, the above-mentioned optical fiber coupler type may be, but is not limited to, an optical fiber coupler of (1 + 1) × 1, (2 + 1) × 1, (6 + 1) × 1, or (18 + 1) × 1. The gain fiber may be, but not limited to, a rare earth element doped fiber or a photonic crystal fiber, wherein the doped rare earth element may be, but not limited to, one or more of ytterbium (Yb), erbium (Er), holmium (Ho), thulium (Tm), samarium (Sm), and bismuth (Bi). The pump source type may be, but is not limited to, one of a semiconductor laser, a fiber laser, a solid laser, a gas laser, and a raman laser, the center wavelength of the output pump light may be, but is not limited to, 600-.
Optionally, in this embodiment, the beam splitter may be, but is not limited to, an energy beam splitter, and the type may be, but is not limited to, a1 × 2, 1 × 3, or 1 × 6 type.
In one exemplary embodiment, the beam control apparatus includes: the first number of beam controllers, wherein each of the beam controllers comprises a beam modulator and a second amplifier, the beam modulator being connected to the beam splitting apparatus, the second amplifier being connected between the beam modulator and the beam combining output apparatus; the light beam modulator is used for carrying out repetition frequency modulation on one light beam in the first number of light beams to obtain a modulated light beam; the second amplifier is configured to amplify the one modulated light beam to obtain one control light beam.
Alternatively, in the present embodiment, the beam modulator may be, but is not limited to, an acousto-optic modulator. The passing light beam can be subjected to repetition frequency regulation.
Optionally, in this embodiment, the second amplifier may include, but is not limited to, N amplification stages, where N is greater than or equal to 2, and the isolation beam is amplified step by step, and for convenience of description in this embodiment, N is 2, that is, the second amplifier includes a third amplification stage F3 and a fourth amplification stage F4.
Fig. 3 is a schematic diagram of the internal structure of a third amplification stage according to an embodiment of the invention; as shown in fig. 3, the third amplification stage may include, but is not limited to, at least a second pump source 3-1, a second fiber coupler 3-2, a second gain fiber 3-3, a first mode stripper 3-4, a third optical isolator 3-5, and a mode field adapter 3-6. The connection mode of each device may include, but is not limited to, type (d), type (e), and type (f). The connection mode of type (d) may be, but is not limited to: one end of the mode field adapter 3-6 is connected with one end of the acousto-optic modulator; the other end of the mode field adapter 3-6 is connected with the signal end of the second optical fiber coupler 3-2; the second pumping source 3-1 is connected with the pumping end of the second optical fiber coupler 3-2, and the common end of the second optical fiber coupler 3-2 is connected with one end of the second gain optical fiber 3-3; the other end of the second gain optical fiber 3-3 is connected with one end of the first mode stripper 3-4; the other end of the first mould stripper 3-4 is connected with one end of a third optical isolator 3-5; the other end of the third optical isolator 3-5 is connected to a fourth amplifier stage F4. The fourth amplification stage is similar to the third amplification stage in structure and connection mode, wherein the fourth amplification stage is different in that: the mode field in the fourth amplification stage is adaptively connected with an optical isolator in the third amplification stage; the other end of the optical isolator in the fourth amplification stage is connected with the beam combining end of the optical fiber beam combiner. The connection mode of type (e) may be, but is not limited to: on the basis of the type (d), the positions of the second optical fiber coupler 3-2, the second pump source 3-1 and the first mode stripper 3-4 are exchanged; the connection mode of type (f) may be, but is not limited to: on the basis of type (d), a pump source 3-7 and a fiber coupler 3-8 are added between the second gain fiber 3-3 and the third optical isolator 3-5, and a mode stripper 3-9 is added in the mode field adapter 3-6 and the second fiber coupler 3-2 at the same time.
Alternatively, in this embodiment, the pump source may be, but is not limited to, a semiconductor laser diode with a center wavelength of 915nm or 976 nm.
Optionally, in this embodiment, the optical fiber coupler may be selected from, but not limited to, (2 + 1)
1 or (6 + 1)
1 or (18 + 1) × 1 optical fibre coupler。
Optionally, in this embodiment, the gain fiber may be, but is not limited to, a rare earth-doped fiber, and an ytterbium-doped fiber with a core diameter of 20 microns, or 30 microns, or 50 microns, or 100 microns, or 300 microns, or 400 microns may be selected.
Optionally, in this embodiment, the third optical isolator may be, but is not limited to, a polarization independent optical isolator.
In one exemplary embodiment, the optical beam delivery apparatus includes: said second number of third amplifiers, wherein each of said third amplifiers is connected between said beam splitting means and said beam combining output means; each of the third amplifiers is configured to amplify one of the second number of beams to obtain one of the transmission beams.
Optionally, in this embodiment, the third amplifier may include, but is not limited to, N amplification stages, where N is greater than or equal to 2, and the isolated light beam is amplified step by step, and for convenience of description in this embodiment, N takes a value of 2, that is, the third amplifier includes a fifth amplification stage and a sixth amplification stage. The fifth amplification stage and the sixth amplification stage are similar in structure and connection to the third amplification stage, wherein the fifth amplification stage is different in that: the mode field in the fifth amplification stage is adaptive to and connected with the beam splitting end of the optical fiber beam splitter; the other end of the optical isolator in the fifth amplification stage is connected with the fifth amplification stage. The sixth amplification stage differs by: the mode field adapter in the sixth amplification stage is connected with the optical isolator in the fifth amplification stage; the other end of the optical isolator in the sixth amplification stage is connected with the beam combining end of the optical fiber beam combiner.
In an exemplary embodiment, a sum of a first total power of the first number of control beams and a second total power of the second number of transmission beams is a target power, and the target power is a preset power of the target beam.
In one exemplary embodiment, the beam combining output device includes: the beam combiner is connected with the light beam control device and the light beam transmission device, and the mode stripper is connected between the beam combiner and the second optical isolator; the beam combiner is used for combining the first number of control beams and the second number of transmission beams to obtain combined beams; the die stripper is used for stripping the combined beam to obtain a stripped beam; and the second optical isolator is used for carrying out optical isolation treatment on the mode stripping light beam to obtain the target light beam and outputting the target light beam.
Optionally, in this embodiment, the beam combiner may be, but is not limited to, any type of device having a beam combining function, such as: fiber combiner, etc.
Optionally, in this embodiment, the beam combiner may be, but is not limited to, an energy beam splitter, and the type may be, but is not limited to, a2 × 1, 3 × 1, or 6 × 1 type.
Alternatively, in this embodiment, FIG. 4 is a schematic diagram of a combined target beam according to an embodiment of the invention; as shown in fig. 4, when the original beam is a pulse laser, the repetition frequency of the path is effectively controlled by the acousto-optic modulator, so as to realize control of any repetition frequency, and the original beam is combined with another path to generate a pulse laser with adjustable single-pulse energy intensity rule and adjustable single-pulse energy intensity repetition frequency interval. Different types of target beams (a), (b) and (c) can be obtained by adjusting the beam repetition frequency interval or energy. When the original beam is continuous laser, the continuous laser is regulated and controlled by the acousto-optic modulator to generate pulse laser, and the continuous laser and the other continuous laser are combined to realize the output mode of combining the continuous laser and the pulse laser, namely, the pulse laser output with adjustable single-pulse energy intensity rule and adjustable single-pulse energy intensity repetition frequency interval or the laser output (d) combining the continuous laser and the pulse laser can be realized in the laser.
For better understanding of the foregoing optical beam processor, the following describes an implementation of the foregoing optical beam processor with reference to an alternative embodiment, but the implementation is not limited to the technical solution of the embodiment of the present invention.
In this alternative embodiment, a fiber laser structure is provided, and fig. 5 is a schematic diagram of a fiber laser structure according to an alternative embodiment of the present invention; as shown in fig. 5, the fiber laser includes: the amplifier comprises a semiconductor seed source 1, a first optical isolator 2, a first amplification stage 3 (PA 1), a second amplification stage 4 (PA 2), a beam splitter 5, an acousto-optic modulator 6, a third amplification stage 7 (PA 3), a fourth amplification stage 8 (PA 4), a fifth amplification stage 9 (PA 5), a sixth amplification stage 10 (PA 6), a beam combiner 11, a mode stripper 12 and a second optical isolator 13.
The semiconductor seed source is connected with one end of a first optical isolator, and the other end of the first optical isolator is connected with one end of a first amplification stage; the other end of the first amplification stage is connected with one end of the second amplification stage; the other end of the second amplification stage is connected with the common end of the beam splitter; the beam splitting end of the beam splitter is respectively connected with one end of the acousto-optic modulator and one end of the fifth amplification stage; the other end of the acousto-optic modulator is connected with one end of the third amplification stage; the other end of the third amplification stage is connected with one end of the fourth amplification stage; the other end of the fifth amplification stage is connected with one end of the sixth amplification stage; the other end of the fourth amplification stage and the other end of the sixth amplification stage are respectively connected with a beam combining end of the beam combiner; the common end of the beam combiner is connected with one end of the mould stripping device; the other end of the mould stripper is connected with a second optical isolator.
The semiconductor seed source generates pulse laser or continuous laser, and the subsequent laser processing process can be divided into the following 2 cases:
in the first case, when a semiconductor seed source generates pulse laser, the pulse laser enters a beam splitter after passing through a first amplification stage and a second amplification stage, the beam splitter divides the pulse laser into 2 parts, one part of the pulse laser is subjected to frequency repetition reselection through an acousto-optic modulator and then enters a beam combining end of the beam combiner after being amplified through a third amplification stage and a fourth amplification stage; the other part of the pulse laser enters the beam combining end of the beam combiner after being directly amplified by the fifth amplification stage and the sixth amplification stage; at the moment, under the common regulation and control of the semiconductor seed source, the acousto-optic modulator and the amplifier stage, the pulse laser output by the common end of the beam combiner is adjustable in single-pulse energy intensity rule and repetition frequency interval of the single-pulse energy intensity, and is output through the mode stripper and the second optical isolator.
In the second situation, when the semiconductor seed source generates continuous laser, the continuous laser enters the beam splitter after passing through the first amplification stage and the second amplification stage, the beam splitter divides the continuous laser into 2 parts, one part of the continuous laser is regulated and controlled by the acousto-optic modulator, pulse laser is generated, and the pulse laser enters the beam combining end of the beam combiner after being amplified by the third amplification stage and the fourth amplification stage; the other part of continuous laser enters the beam combining end of the beam combiner after being directly amplified by the fifth amplification stage and the sixth amplification stage; at the moment, under the common regulation and control of the semiconductor seed source, the acousto-optic modulator and the amplifier stage, the public end of the beam combiner outputs pulse laser with a continuous laser background, so that the output mode of combining the continuous laser and the pulse laser is realized, and the output is realized through the mold stripper and the second optical isolator.
Through the optical fiber laser, on one hand, light generated by the same seed source is amplified, split into 2 beams of light for amplification, and then output in a beam combination mode, so that seed source difference is avoided, debugging process is effectively reduced, and industrialization is facilitated.
On the other hand, the acousto-optic modulator is skillfully added in one path of divided amplifying stages to realize laser control in different output modes, when the semiconductor seed source generates pulse laser, the repetition frequency of the path is effectively controlled through the acousto-optic modulator to realize control of any repetition frequency, and the pulse with adjustable single pulse energy intensity rule and adjustable single pulse energy intensity repetition frequency interval is generated through beam combination with the other path; when the semiconductor seed source generates continuous laser, the path of continuous laser is regulated and controlled by the acousto-optic modulator to generate pulse laser, and the continuous laser and the pulse laser are combined to realize a combined output mode.
In addition, the design is flexible and simple, the structure is compact, the volume of the laser is reduced due to the full-fiber design, and the industrialization is convenient to realize.
The embodiment of the method provided by the embodiment of the invention can be executed in a computer terminal, a computer terminal or a similar arithmetic device. Taking the example of the computer terminal running on the computer terminal, fig. 6 is a hardware structure block diagram of the computer terminal of a light beam processing method according to the embodiment of the present invention. As shown in fig. 6, the computer terminal may include one or more (only one shown in fig. 6) processors 602 (the processors 602 may include, but are not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA) and a memory 604 for storing data, and in an exemplary embodiment, may further include a transmission device 606 for communication functions and an input-output device 608. It will be understood by those skilled in the art that the structure shown in fig. 6 is only an illustration, and is not intended to limit the structure of the computer terminal. For example, the computer terminal may also include more or fewer components than shown in FIG. 6, or have a different configuration with equivalent functionality to that shown in FIG. 6 or with more functionality than that shown in FIG. 6.
The memory 604 may be used for storing computer programs, for example, software programs and modules of application software, such as computer programs corresponding to the processing method of the optical beam in the embodiment of the present invention, and the processor 602 executes various functional applications and data processing by running the computer programs stored in the memory 604, so as to implement the above-mentioned method. The memory 604 may include high-speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 604 may further include memory located remotely from the processor 602, which may be connected to a computer terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission means 606 is used for receiving or sending data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the computer terminal. In one example, the transmission device 606 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 606 can be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
Fig. 7 is a schematic diagram of a method for processing a light beam according to an embodiment of the present invention, as shown in fig. 7, the following steps are specifically performed:
step S702, carrying out beam splitting processing on the received original light beams to obtain light beams with target quantity;
step S704, performing repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number;
step S706, performing beam combining processing on the first number of control beams and the second number of transmission beams to obtain target beams, and outputting the target beams.
Through the embodiment, the beam splitting device performs beam splitting processing on the received original beams to obtain the beams with the target quantity, and each beam with the target quantity is obtained by splitting the same original beam, so that the beams have the same property, and the problems of strict time sequence requirements, high operation difficulty and the like caused by the difference of the original beams from the beams with the target quantity in the subsequent synthesis process are solved. The first number of light beams in the target number of light beams are subjected to repetition frequency control through the light beam control device to obtain the first number of control light beams, the frequency of the first number of light beams in the target number of light beams can be regulated and controlled, and the first number of control light beams with adjustable repetition frequency intervals are obtained. The second number of light beams in the target number of light beams are transmitted through the light beam transmission device to obtain a second number of transmission light beams, the second number of transmission light beams keep the characteristics of the original light beams, the first number of control light beams and the second number of transmission light beams are combined through the light beam combining output device to obtain target light beams, and the target light beams have the frequency adjustable characteristics of the first number of control light beams and the characteristics of the original light beams kept by the second number of transmission light beams. By adopting the technical scheme, the problems that the adjusting process of the repetition frequency interval of the light beam generated by the light beam processor is complex and the like in the related technology are solved, and the technical effect of simplifying the adjusting process of the repetition frequency interval is realized.
In the technical solution provided in step S702, the received primary light beam may be, but is not limited to, emitted by a light-emitting seed source (e.g., a semiconductor seed source, etc.).
Optionally, in this embodiment, the original light beams may be emitted by a single light-emitting seed source, and the target number of light beams have the same frequency characteristic. That is, the target number is 2 or more, and the frequency characteristics of the respective light beams are the same in the target number of light beams.
In the technical solution provided in step S704, the first number of light beams may be, but is not limited to, at least one light beam in the target number of light beams. The second number of beams may be, but is not limited to, all but the first number of beams of the target number of beams.
Alternatively, in the present embodiment, the above-mentioned repetition frequency control process may include, but is not limited to, a frequency modulation operation and a beam energy amplification operation, etc. The above transmission process may include, but is not limited to, a beam energy amplification operation, and the like.
Optionally, in this embodiment, the first number of beams of the target number of beams may be, but is not limited to, controlled by repetition frequency, and the second number of beams of the target number of beams may be transmitted by: performing repetition frequency modulation on each light beam in the first number of light beams to obtain a first number of modulated light beams; amplifying each modulated light beam in the first number of modulated light beams to obtain a first number of control light beams, wherein the total power of the first number of control light beams is a first total power; and amplifying each light beam in the second number of light beams to obtain a second number of transmission light beams, wherein the total power of the second number of transmission light beams is a second total power, the sum of the first total power and the second total power is a target power, and the target power is a preset power of the target light beam.
Optionally, in this embodiment, the first number of control beam repetition frequencies is adjustable.
Optionally, in this embodiment, the frequency characteristic of the second number of transmitted light beams is the same as that of the original light beam.
Optionally, in this embodiment, in the process of processing each split beam, but not limited to, performing a power amplification operation on each processed beam according to a power requirement of the target beam, so that the power of the finally obtained target beam meets a preset requirement.
In the technical solution provided in step S706, the target light beams obtained and output by combining the first number of control light beams and the second number of transmission light beams realize laser control in different output modes. When the original light beam is pulse laser, the repetition frequency of part of light path light beams is effectively controlled through the repetition frequency control, the control of any repetition frequency is realized, and pulses with adjustable single pulse energy intensity rule and adjustable single pulse energy intensity repetition frequency interval are generated through beam combination with the other part of light path light beams. When the original beam is continuous laser, part of the light path beams in the continuous laser are regulated and controlled through repetition frequency control to generate pulse laser, and the continuous laser of the other part of the light path beams are combined to realize a combined output mode of the continuous laser and the pulse laser, namely, the pulse laser output with adjustable single pulse energy strength rule and adjustable single pulse energy strength repetition frequency interval or the laser output combined with the pulse laser continuously can be realized in a laser.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (such as ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (such as a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
FIG. 8 is a block diagram of an apparatus for processing a light beam according to an embodiment of the present invention; as shown in fig. 8, includes:
the beam splitting module 82 is used for performing beam splitting processing on the received original light beams to obtain light beams with target quantity;
a processing module 84, configured to perform repetition frequency control on a first number of light beams in the target number of light beams, so as to obtain a first number of control light beams; transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number;
and the beam combining module 86 is configured to perform beam combining processing on the first number of control beams and the second number of transmission beams to obtain target beams, and output the target beams.
Through the embodiment, the beam splitting device performs beam splitting processing on the received original beams to obtain the beams with the target number, and each beam with the target number is obtained by splitting the same original beam, so that the properties of the beams are the same, the problems of strict time sequence requirements, high operation difficulty and the like caused by the difference of the original beams from the light beams with the target number in the subsequent synthesis process are solved, and meanwhile, if the number of the original beams from the light beams with the target number is multiple, the manufacturing cost of the device is increased. The first number of light beams in the target number of light beams are subjected to repetition frequency control through the light beam control device to obtain the first number of control light beams, the frequency of the first number of light beams in the target number of light beams can be regulated and controlled, and the first number of control light beams with adjustable repetition frequency intervals are obtained. And transmitting a second number of light beams in the target number of light beams through a light beam transmission device to obtain a second number of transmission light beams, wherein the second number of transmission light beams keeps the characteristics of original light beams, the first number of control light beams and the second number of transmission light beams are combined through the light beam combination output device to obtain target light beams, and the target light beams have the frequency adjustable characteristics of the first number of control light beams and the characteristics of the second number of transmission light beams keeping the original light beams. By adopting the technical scheme, the problems that the adjusting process of the repetition frequency interval of the light beam generated by the light beam processor is complex and the like in the related technology are solved, and the technical effect of simplifying the adjusting process of the repetition frequency interval is realized.
In one exemplary embodiment, the processing module includes:
the first processing unit is used for performing repetition frequency modulation on each light beam in the first number of light beams to obtain the first number of modulated light beams; amplifying each modulated light beam in the first number of modulated light beams to obtain a first number of control light beams, wherein the total power of the first number of control light beams is a first total power; and the number of the first and second groups,
and a second processing unit, configured to amplify each of the second number of beams to obtain the second number of transmission beams, where a total power of the second number of transmission beams is a second total power, a sum of the first total power and the second total power is a target power, and the target power is a preset power of the target beam.
An embodiment of the present invention further provides a storage medium including a stored program, wherein the program executes any one of the methods described above.
Alternatively, in the present embodiment, the storage medium may be configured to store program codes for performing the following steps:
s1, splitting the received original light beam to obtain the target number of light beams;
s2, performing repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number;
and S3, combining the first number of control beams and the second number of transmission beams to obtain target beams, and outputting the target beams.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
Optionally, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
Optionally, in this embodiment, the processor may be configured to execute the following steps by a computer program:
s1, splitting the received original light beam to obtain the target number of light beams;
s2, performing repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number;
and S3, combining the first number of control beams and the second number of transmission beams to obtain target beams, and outputting the target beams.
Optionally, in this embodiment, the storage medium may include, but is not limited to: various media capable of storing program codes, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Optionally, the specific examples in this embodiment may refer to the examples described in the above embodiments and optional implementation manners, and this embodiment is not described herein again.
It will be apparent to those skilled in the art that the modules or steps of the present invention described above may be implemented by a general purpose computing device, they may be centralized on a single computing device or distributed across a network of multiple computing devices, and alternatively, they may be implemented by program code executable by a computing device, such that they may be stored in a storage device and executed by a computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into individual integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A beam processor, comprising: the device comprises a light beam splitting device, a light beam control device, a light beam transmission device and a light beam combining and outputting device, wherein the light beam control device and the light beam transmission device are respectively connected between the light beam splitting device and the light beam combining and outputting device;
the beam splitting device is used for splitting the received original beams to obtain beams with target quantity;
the light beam control device is used for carrying out repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams;
the light beam transmission device is used for transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number;
the light beam combining and outputting device is used for combining the first number of control light beams and the second number of transmission light beams to obtain target light beams and outputting the target light beams.
2. The beam processor of claim 1 wherein the beam splitting means comprises: a first optical isolator, a first amplifier and a beam splitter, wherein the first amplifier is connected to the first optical isolator and the beam splitter is connected between the first amplifier and the beam control device;
the first optical isolator is used for carrying out optical isolation processing on the original light beam to obtain an isolated light beam;
the first amplifier is used for amplifying the isolated light beam to obtain a first amplified light beam;
the beam splitter is configured to split the first amplified light beam into the target number of light beams.
3. A beam processor according to claim 1, wherein the beam steering arrangement comprises: the first number of beam controllers, wherein each of the beam controllers comprises a beam modulator and a second amplifier, the beam modulator being connected to the beam splitting apparatus, the second amplifier being connected between the beam modulator and the beam combining output apparatus;
the light beam modulator is used for carrying out repetition frequency modulation on one light beam in the first number of light beams to obtain a modulated light beam;
the second amplifier is configured to amplify the one modulated light beam to obtain one control light beam.
4. A beam processor according to claim 3, wherein the beam delivery means comprises: said second number of third amplifiers, wherein each of said third amplifiers is connected between said beam splitting means and said beam combining output means;
each of the third amplifiers is configured to amplify one of the second number of beams to obtain one of the transmission beams.
5. The beam processor of claim 1 wherein the sum of a first total power of the first number of control beams and a second total power of the second number of transmission beams is a target power, the target power being a preset power of the target beam.
6. The beam processor of claim 1 wherein the beam combining output device comprises: the beam combiner is connected with the light beam control device and the light beam transmission device, and the mode stripper is connected between the beam combiner and the second optical isolator;
the beam combiner is used for combining the first number of control beams and the second number of transmission beams to obtain combined beams;
the die stripper is used for stripping the combined beam to obtain a stripped beam;
and the second optical isolator is used for carrying out optical isolation treatment on the mode stripping light beam to obtain the target light beam and outputting the target light beam.
7. A method of processing a light beam, comprising:
carrying out beam splitting treatment on the received original light beams to obtain light beams with target quantity;
performing repetition frequency control on a first number of light beams in the target number of light beams to obtain a first number of control light beams; transmitting a second number of light beams in the target number of light beams to obtain the second number of transmitted light beams, wherein the target number is the sum of the first number and the second number;
and combining the first number of control beams and the second number of transmission beams to obtain target beams, and outputting the target beams.
8. The method of claim 7, wherein a first number of the target number of beams is frequency-doubled to obtain the first number of control beams; and transmitting a second number of beams of the target number of beams to obtain the second number of transmitted beams, comprising:
performing repetition frequency modulation on each light beam in the first number of light beams to obtain a first number of modulated light beams; amplifying each modulated light beam in the first number of modulated light beams to obtain a first number of control light beams, wherein the total power of the first number of control light beams is a first total power; and the number of the first and second groups,
amplifying each light beam in the second number of light beams to obtain a second number of transmission light beams, wherein the total power of the second number of transmission light beams is a second total power, the sum of the first total power and the second total power is a target power, and the target power is a preset power of the target light beam.
9. A computer-readable storage medium, comprising a stored program, wherein the program is operable to perform the method of claim 7 or 8.
10. An electronic device comprising a memory and a processor, characterized in that the memory has stored therein a computer program, and the processor is arranged to execute the method of claim 7 or 8 by means of the computer program.
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| CN101261371A (en) * | 2008-04-14 | 2008-09-10 | 中国人民解放军国防科学技术大学 | Time-domain characteristic arbitrarily adjustable pulsed laser source |
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