CN212136881U - Optical fiber laser for improving efficiency of converting pump optical power into signal optical power - Google Patents
Optical fiber laser for improving efficiency of converting pump optical power into signal optical power Download PDFInfo
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- CN212136881U CN212136881U CN201922312315.0U CN201922312315U CN212136881U CN 212136881 U CN212136881 U CN 212136881U CN 201922312315 U CN201922312315 U CN 201922312315U CN 212136881 U CN212136881 U CN 212136881U
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Abstract
The utility model discloses an improve pumping optical power changes fiber laser of signal light power efficiency, belong to fiber laser technical field, send control command through single chip microcomputer control, keep apart through the optoelectronic isolator, send information to pumping light drive power supply, start the pumping light source through pumping light drive power supply, beam combiner is with pumping source and optical fiber splice point and glass pipe coupling light path system excitation active optical fiber in addition and produces the photon, active optical fiber produces laser through total reflection of light bars and output grating laser resonance, the rethread passive optical fiber exports to laser output head back output, pump source and optical fiber splice point and glass pipe coupling light path system excitation active optical fiber in addition through beam combiner and produce the photon, and fill into nitrogen gas in the glass pipe, active optical fiber produces laser through total reflection of light bars and output grating laser resonance, rethread passive optical fiber exports to laser output head back output and makes it have fine anti-interference isolation ability of electric physics Force.
Description
Technical Field
The utility model relates to a fiber laser especially relates to an improve pumping optical power and changes fiber laser of signal light power efficiency, belongs to fiber laser technical field.
Background
The optical fiber laser generally adopts a semiconductor pump source, is a laser using an optical fiber as a working substance, and the optical fiber laser which is most widely researched and used at present is a rare earth doped optical fiber laser using an optical fiber doped with rare earth elements as a working substance, and has a plurality of advantages.
(1) The glass optical fiber has the advantages of low manufacturing cost, mature technology and miniaturization and intensification brought by the reliability of the optical fiber;
(2) the heat dissipation is fast, the loss is low, so the conversion efficiency is high, and the laser threshold is low;
(3) the resonant cavity of the fiber laser is free of optical lens, so that the fiber laser has the advantages of no adjustment, no maintenance and high stability;
(4) the tunable laser output of the broadband can be obtained;
(5) certain wavelengths of fiber lasers are suitable for low-loss windows for fiber optic communications;
fiber lasers have found wide application in the fields of communications, industrial processing, military, medical, optical information processing, etc. because of the above advantages.
Two butt fusion at full reflecting grating both ends of fiber laser in prior art are the butt fusion of many clad fiber, and the optical fiber that peels the surrounding layer around the splice point and need coat low book glue, and the coating is low book glue has following shortcoming:
(1) low breaking glue, high price and more than 100 yuan per gram;
(2) the glue has poor quality stability and is easy to lose efficacy, and the common cycle is 6 months;
(3) the glue coating process is easy to pollute;
(4) the ultraviolet lamp irradiation process used in the coating process is unstable and is greatly influenced by xenon lamp light;
(5) the output of all fiber lasers is difficult to reach an ideal state.
Therefore, the problem is optimized by designing a fiber laser for improving the power efficiency of the pump light to the signal light.
SUMMERY OF THE UTILITY MODEL
The utility model mainly aims at providing an improve pumping light power and change fiber laser of signal light power efficiency, through beam combiner with pumping source and optical fiber splice point in addition glass pipe coupling light path system arouse active optical fiber and produce the photon, and fill into nitrogen gas in the glass pipe, active optical fiber produces laser through reflecting grating and output grating laser resonance entirely, and the output makes it have fine electrical physics to keep apart the interference killing feature behind rethread passive optical fiber output to the laser output head.
The purpose of the utility model can be achieved by adopting the following technical scheme:
a fiber laser for improving the efficiency of converting pump light power into signal light power comprises a single chip microcomputer, a photoelectric isolator, a pump light driving power supply, a pump light source, a beam combiner, an optical fiber fusion point, a glass tube, a full-reflection grating, an active optical fiber, an output grating, a passive optical fiber and a 1064nm laser output head;
the single chip microcomputer integrates a Central Processing Unit (CPU) Random Access Memory (RAM), a read-only memory (ROM), various input/output (I/O) ports, an interrupt system and a timer/timer which have data processing capacity on a silicon chip by adopting a super-large scale integrated circuit technology to form a small and perfect microcomputer system, and is used for processing the acquired data and sending corresponding instructions;
the photoelectric isolator is a photoelectric coupler which takes light as a medium and is used for coupling an input end signal to an output end;
the pump light driving power supply is used for driving the pump light source;
the optical fiber welding points are used for providing corresponding welding points for two welding ends of the full reflecting grating;
the glass tube is used for covering the optical fibers between the two fusion points, filling nitrogen into the inner side of the glass tube, installing 704 rubber plugs at two ends of the inner side of the glass tube for sealing, and enabling the optical fibers to penetrate through the 704 rubber plugs.
Preferably, the singlechip controls to send a control instruction, the photoelectric isolator isolates the information and sends the information to the pump light driving power supply, the pump light driving power supply starts the pump light source, the beam combiner enables the pump source and the optical fiber fusion point to be added with the glass tube coupling optical path system to excite the active optical fiber to generate photons, and the active optical fiber generates laser through the full-reflection grating and the output grating laser resonance and outputs the laser to the laser output head through the passive optical fiber.
Preferably, the fibre laser is mounted in a hermetically sealed box in accordance with military standards.
Preferably, the pump light driving power supply is a modular semiconductor pump source driving circuit.
Preferably, the pumping light source is a multispectral pumping source, and the multispectral infrared laser is generated by the multispectral pumping source.
Preferably, the wavelength of photons generated by the active fiber is 1064nm, and the laser resonant cavity generates 1064nm laser.
Preferably, the passive optical fiber outputs 16W laser with the wavelength of 1064 nm.
The utility model has the advantages of:
the utility model provides a pair of improve pumping optical power and change optical power efficiency's fiber laser, through beam combiner with pumping source and optical fiber splice point plus glass pipe coupling optical path system arouse active optical fiber and produce the photon to fill into nitrogen gas in the glass pipe, active optical fiber produces laser through reflecting grating and output grating laser resonance entirely, and the output makes it have fine electrical physics and keeps apart the interference killing feature behind rethread passive optical fiber output to the laser output head.
Drawings
Fig. 1 is a schematic diagram of an overall structure of a fiber laser according to a preferred embodiment of the present invention, which is used for improving the efficiency of converting pump light power into signal light power;
fig. 2 is a flowchart of the operation of a preferred embodiment of a fiber laser for improving the efficiency of converting pump light power to signal light power in accordance with the present invention;
fig. 3 is a schematic diagram of a fiber glass tube and 704 plug combined structure of a preferred embodiment of a fiber laser for improving the power efficiency of pump light to signal light according to the present invention;
fig. 4 is a schematic diagram of a fiber laser according to a preferred embodiment of the present invention, which improves the efficiency of converting pump light power into signal light power.
In the figure: 1-glass tube, 2-optical fiber, 3-704 rubber plug.
Detailed Description
In order to make the technical solutions of the present invention clearer and clearer for those skilled in the art, the present invention will be described in further detail with reference to the following embodiments and the accompanying drawings, but the embodiments of the present invention are not limited thereto.
As shown in fig. 1-4, the optical fiber laser for improving the power efficiency of converting pump light power into signal light provided by this embodiment includes a single chip, a photoelectric isolator, a pump light driving power supply, a pump light source, a beam combiner, an optical fiber fusion point, a glass tube 1, a total reflection grating, an active optical fiber, an output grating, a passive optical fiber, and a 1064nm laser output head;
the single chip microcomputer integrates a Central Processing Unit (CPU) Random Access Memory (RAM), a read-only memory (ROM), various input/output (I/O) ports, an interrupt system and a timer/timer which have data processing capacity on a silicon chip by adopting a super-large scale integrated circuit technology to form a small and perfect microcomputer system, and is used for processing the acquired data and sending corresponding instructions;
the photoelectric isolator is used for coupling an input end signal to the photoelectric coupler of the output end by taking light as a medium;
the pump light driving power supply is used for driving the pump light source;
the optical fiber welding points are used for providing corresponding welding points for the two welding ends of the full reflecting grating;
the glass tube 1 is used for covering the optical fibers 2 between the two fusion points, filling nitrogen into the inner side of the glass tube 1, installing 704 rubber plugs 3 at two ends of the inner side of the glass tube 1 for sealing, and enabling the optical fibers 2 to penetrate through 704 rubber plugs 3.
In the embodiment, a control instruction is sent out through the control of a single chip microcomputer, the isolation is carried out through a photoelectric isolator, information is sent to a pump light driving power supply, a pump light source is started through the pump light driving power supply, a beam combiner enables a pump source, an optical fiber fusion point and a glass tube 1 coupling light path system to excite an active optical fiber to generate photons, the active optical fiber generates laser through laser resonance of a full-reflection grating and an output grating, and the laser is output to a laser output head through a passive optical fiber and then is output.
In this embodiment, the fiber laser is mounted in a sealed box that conforms to military standards.
In this embodiment, the pump light driving power source is a modular semiconductor pump source driving circuit.
In this embodiment, the pumping light source is a multiline pumping source, and the multiline infrared laser is generated by the multiline pumping source.
In this embodiment, the wavelength of the photons generated by the active fiber is 1064nm, and the laser cavity generates 1064nm laser light.
In this embodiment, the passive fiber outputs 16W of laser light having a wavelength of 1064 nm.
In conclusion, the pumping source, the optical fiber fusion point and the glass tube coupling optical path system are combined by the beam combiner to excite the active optical fiber to generate photons, nitrogen is filled in the glass tube, the active optical fiber generates laser through the full-reflection grating and the output grating laser resonance, and the laser is output to the laser output head through the passive optical fiber and then has good electrical and physical isolation anti-interference capability.
The above description is only a further embodiment of the present invention, but the scope of protection of the present invention is not limited thereto, and any person skilled in the art can replace or change the technical solution and the concept of the present invention within the scope of the present invention.
Claims (7)
1. The utility model provides an improve pumping optical power and change signal light power efficiency's fiber laser which characterized in that: the device comprises a singlechip, a photoelectric isolator, a pump light driving power supply, a pump light source, a beam combiner, an optical fiber fusion point, a glass tube (1), a total reflection grating, an active optical fiber, an output grating, a passive optical fiber, a pump source and a 1064nm laser output head;
the single chip microcomputer integrates a Central Processing Unit (CPU) Random Access Memory (RAM), a read-only memory (ROM), various input/output (I/O) ports, an interrupt system and a timer/timer which have data processing capacity on a silicon chip by adopting a super-large scale integrated circuit technology to form a small and perfect microcomputer system, and is used for processing the acquired data and sending corresponding instructions;
the photoelectric isolator is a photoelectric coupler which takes light as a medium and is used for coupling an input end signal to an output end;
the pump light driving power supply is used for driving the pump light source;
the optical fiber welding points are used for providing corresponding welding points for two welding ends of the full reflecting grating;
the glass tube (1) is used for covering the optical fibers (2) between the two fusion points, filling nitrogen into the inner side of the glass tube (1), installing 704 rubber plugs (3) at two ends of the inner side of the glass tube (1) for sealing, and enabling the optical fibers (2) to penetrate through the 704 rubber plugs (3).
2. The fiber laser of claim 1, wherein the optical fiber laser comprises: the control instruction is sent out through the control of the singlechip, the photoelectric isolator is used for isolating, information is sent to the pump light driving power supply, the pump light source is started through the pump light driving power supply, the beam combiner is used for exciting the pump source and the optical fiber fusion point as well as the coupling optical path system of the glass tube (1) to excite the active optical fiber to generate photons, the active optical fiber generates laser through the full-reflection grating and the output grating laser resonance, and the laser is output to the laser output head through the passive optical fiber and then is output.
3. The fiber laser of claim 1, wherein the optical fiber laser comprises: the fiber laser is installed in a sealed box which accords with military standards.
4. The fiber laser of claim 1, wherein the optical fiber laser comprises: the pump light driving power supply is a modularized semiconductor pump source driving circuit.
5. The fiber laser of claim 1, wherein the optical fiber laser comprises: the pumping light source is a multi-spectral-line pumping source, and multi-spectral-line infrared laser is generated by the multi-spectral-line pumping source.
6. The fiber laser of claim 1, wherein the optical fiber laser comprises: the wavelength of photons generated by the active optical fiber is 1064nm, and the laser resonant cavity generates 1064nm laser.
7. The fiber laser of claim 1, wherein the optical fiber laser comprises: the passive optical fiber outputs 16W laser with the wavelength of 1064 nm.
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| CN201922312315.0U CN212136881U (en) | 2019-12-20 | 2019-12-20 | Optical fiber laser for improving efficiency of converting pump optical power into signal optical power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048974A (en) * | 2019-12-20 | 2020-04-21 | 江苏亮点光电科技有限公司 | Optical fiber laser for improving efficiency of converting pump optical power into signal optical power |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN111048974A (en) * | 2019-12-20 | 2020-04-21 | 江苏亮点光电科技有限公司 | Optical fiber laser for improving efficiency of converting pump optical power into signal optical power |
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