CN111293578A - Novel narrow linewidth fiber laser - Google Patents

Novel narrow linewidth fiber laser Download PDF

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Publication number
CN111293578A
CN111293578A CN201811506914.XA CN201811506914A CN111293578A CN 111293578 A CN111293578 A CN 111293578A CN 201811506914 A CN201811506914 A CN 201811506914A CN 111293578 A CN111293578 A CN 111293578A
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CN
China
Prior art keywords
heat dissipation
protective shell
heat
fiber laser
narrow linewidth
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
CN201811506914.XA
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Chinese (zh)
Inventor
刘晓航
沈成荣
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hangzhou Mingjia Network Technology Co ltd
Original Assignee
Hangzhou Mingjia Network Technology Co ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hangzhou Mingjia Network Technology Co ltd filed Critical Hangzhou Mingjia Network Technology Co ltd
Priority to CN201811506914.XA priority Critical patent/CN111293578A/en
Publication of CN111293578A publication Critical patent/CN111293578A/en
Pending legal-status Critical Current

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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
    • H01S3/02—Constructional details
    • H01S3/025—Constructional details of solid state lasers, e.g. housings or mountings
    • 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
    • H01S3/02—Constructional details
    • H01S3/04—Arrangements for thermal management
    • H01S3/0404—Air- or gas cooling, e.g. by dry nitrogen
    • 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
    • H01S3/02—Constructional details
    • H01S3/04—Arrangements for thermal management
    • H01S3/0405—Conductive cooling, e.g. by heat sinks or thermo-electric elements
    • 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
    • H01S3/02—Constructional details
    • H01S3/04—Arrangements for thermal management
    • H01S3/042—Arrangements for thermal management for solid state lasers
    • 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
    • H01S3/06704—Housings; Packages

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  • Physics & Mathematics (AREA)
  • Electromagnetism (AREA)
  • Engineering & Computer Science (AREA)
  • Plasma & Fusion (AREA)
  • Optics & Photonics (AREA)
  • Microelectronics & Electronic Packaging (AREA)
  • Lasers (AREA)

Abstract

The invention discloses a novel narrow linewidth optical fiber laser, which comprises a heat dissipation device and a protective shell, wherein the protective shell is arranged below the heat dissipation device, an exhaust port is formed in the heat dissipation device, a display screen is arranged at the front position of the protective shell, an adjusting knob is arranged below the display screen, a power button is arranged at the left position of the adjusting knob, an external connection hole is formed at the upper position of the power button, an external power line is arranged on the protective shell, a foot pad is arranged at the bottom position of the protective shell, a stabilizing base is arranged inside the protective shell, a telescopic rod is arranged above the stabilizing base, a spring is arranged on the telescopic rod, a laser element is arranged at the top position of the telescopic rod, a fixing rod is arranged on the laser element, and the heat dissipation device can discharge heat generated by equipment in the working process during the working process of the equipment, preventing damage caused by overheating of the equipment.

Description

Novel narrow linewidth fiber laser
Technical Field
The invention belongs to the related technical field of fiber lasers, and particularly relates to a novel narrow-linewidth fiber laser.
Background
Narrow linewidth fiber lasers have important applications in fiber sensing and optical communications. Such as phase sensitive optical time domain reflectometry, optical gyroscopes, coherent optical communications, etc. These systems are based on the interference properties of light and therefore have high line width requirements for lasers, typically tens of hertz or less. Methods for implementing narrow linewidth fiber lasers are various. Two general approaches are briefly described below. One is to realize a single longitudinal mode fiber laser by using an ultra-short cavity. The erbium fiber has limited gain bandwidth, and when the longitudinal mode interval of the laser is larger than or close to the gain bandwidth of the erbium fiber, the laser can only realize single longitudinal mode operation, and correspondingly, the laser is a narrow-linewidth fiber laser. Another approach is based on nonlinear effects in the fiber, such as brillouin fiber lasers. Because the cavity length of the Brillouin narrow linewidth optical fiber laser is very short, only two longitudinal modes in the laser cavity can realize oscillation, and further narrow linewidth output is realized.
The existing narrow linewidth fiber laser technology has the following problems: the existing narrow linewidth fiber laser can generate a large amount of heat in the working process, the generated heat can damage equipment if not discharged, meanwhile, the working efficiency can also be reduced, the narrow linewidth fiber laser needs a stable environment in the working process or the transportation process, and the existing equipment does not have a better stabilizing device.
Disclosure of Invention
The invention aims to provide a novel narrow linewidth optical fiber laser to solve the problems of heat generation and poor stability in the work proposed in the background art.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a novel narrow linewidth fiber laser, includes heat abstractor and protective housing, the heat abstractor below is provided with the protective housing, and is provided with the heat extraction mouth on the heat abstractor, the front position department of protective housing is provided with the display screen, the below position department of display screen is provided with adjust knob, adjust knob's left side position department is provided with power button, power button's top position department is provided with the external connection hole, be provided with external power source line on the protective housing, and the bottom position department of protective housing is provided with the callus on the sole, the inside of protective housing is provided with firm base, firm base's top is provided with the telescopic link, be provided with the spring on the telescopic link, and the top position department of telescopic link is provided with laser element, the last dead lever that.
Preferably, the heat dissipation device is composed of a fixing hole, a heat dissipation fin, a fan device, a heat transfer plate, a heat conduction fin and a rotating shaft, the heat transfer plate is arranged above the heat conduction fin, the heat dissipation fin is arranged above the heat transfer plate, the rotating shaft is arranged in the heat dissipation fin, the fixing hole is formed in the heat dissipation fin, and the fan device is arranged on the rotating shaft.
Preferably, the fan device is composed of fan blades and a fan bearing, and the fan blades are arranged on the fan bearing.
Preferably, the protective shell is 180mm long, 85mm wide and 30mm high.
Preferably, the number of the springs and the number of the telescopic rods are three, and the three springs and the three telescopic rods are the same in size.
Preferably, the number of the fixing holes is four, and the four fixing holes are the same in size.
Preferably, the heat sink, the heat transfer plate and the heat conducting fin are made of copper.
Preferably, the fan blades are eight in number, and the eight fan blades are the same in size.
Compared with the prior art, the invention provides a novel narrow linewidth optical fiber laser, which has the following beneficial effects: the narrow-linewidth optical fiber laser is provided with the spring, the telescopic rod, the fixed rod and the heat dissipation device on the basis of the existing equipment, the spring, the telescopic rod and the fixed rod can improve the stability of the equipment, prevent the equipment from being damaged due to jolt and other reasons in the process of moving or using the equipment, and the heat dissipation device can discharge heat generated in the working process of the equipment and prevent the equipment from reducing the working efficiency and even damaging the equipment due to overhigh heat.
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 principles of the invention without limiting the invention in which:
fig. 1 is a schematic structural diagram of a novel narrow linewidth fiber laser according to the present invention;
fig. 2 is a schematic diagram of an internal structure of a novel narrow linewidth fiber laser according to the present invention;
fig. 3 is a schematic structural diagram of a heat dissipation device according to the present invention;
FIG. 4 is a schematic cross-sectional view of a heat dissipation device according to the present invention;
FIG. 5 is a schematic structural diagram of a fan apparatus according to the present invention;
in the figure: 1. adjusting a knob; 2. a display screen; 3. a heat sink; 4. a heat exhaust port; 5. connecting a power line externally; 6. a protective shell; 7. an outer connecting hole; 8. a power button; 9. a foot pad; 10. a telescopic rod; 11. a stable base; 12. a spring; 13. fixing the rod; 14. a laser element; 31. a fixing hole; 32. a heat sink; 33. a fan device; 34. a heat transfer plate; 35. a heat conductive sheet; 36. a rotating shaft; 331. a fan blade; 332. and a fan bearing.
Detailed Description
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.
Referring to fig. 1-4, the present invention provides a technical solution: the utility model provides a novel narrow linewidth fiber laser, including heat abstractor 3 and protective housing 6, heat abstractor 3 below is provided with protective housing 6, and be provided with heat extraction mouth 4 on the heat abstractor 3, the front position department of protective housing 6 is provided with display screen 2, the below position department of display screen 2 is provided with adjust knob 1, adjust knob 1's left side position department is provided with power button 8, power button 8's top position department is provided with outer contact hole 7, be provided with external power source line 5 on the protective housing 6, and the bottom position department of protective housing 6 is provided with callus on the sole 9, the inside of protective housing 6 is provided with firm base 11, firm base 11's top is provided with telescopic link 10, be provided with spring 12 on the telescopic link 10, and the top position department of telescopic link 10 is provided with laser element 14, be provided with dead.
Further, the heat dissipating device 3 is composed of a fixing hole 31, a heat dissipating fin 32, a fan device 33, a heat transfer plate 34, a heat conducting fin 35 and a rotating shaft 36, the heat transfer plate 34 is arranged above the heat conducting fin 35, the heat dissipating fin 32 is arranged above the heat transfer plate 34, the rotating shaft 36 is arranged inside the heat dissipating fin 32, the fixing hole 31 is arranged on the heat dissipating fin 32, and the fan device 33 is arranged on the rotating shaft 36.
Further, the fan device 33 is composed of fan blades 331 and a fan bearing 332, and the fan blades 331 are disposed on the fan bearing 332.
Further, the protective case 6 has a length of 180mm, a width of 85mm and a height of 30 mm.
Further, the number of the springs 12 and the number of the telescopic rods 10 are three, the three springs 12 and the telescopic rods 10 are the same in size, and therefore the stability of the equipment can be improved.
Further, four fixing holes 31 are provided in total, and the four fixing holes 31 are the same in size.
Further, the heat dissipation fins 32, the heat transfer plates 34, and the heat conductive fins 35 are made of copper, which improves the heat dissipation performance of the apparatus.
Furthermore, the number of the fan blades 331 is eight, and the size of the eight fan blades 331 is the same, so that heat generated in the device can be discharged more quickly.
The working principle and the using process of the invention are as follows: after the invention is installed, the equipment is moved to a place to be used, in the moving process, the telescopic rod 10, the spring 12 and the fixed rod 13 in the equipment can prevent the equipment from being damaged due to bumping in the moving process, then the equipment is connected with a power supply through the external power line 5, then the equipment is started through the power supply button 8, the equipment to be used is connected through the external connection hole 7, the adjusting knob 1 can adjust the power of the equipment, the display screen 2 can display the current working state of the equipment, in the working process of the equipment, the heat conducting fins 35 in the heat dissipation device 3 can absorb heat generated in the working process of the equipment, then the heat is transmitted to the heat dissipation fins 32 through the heat transmission plates 34, then the fan device 33 can blow out the heat, the eight fan blades 331 on the fan device 33 can maximize the heat dissipation efficiency, and then the fan device 33 can dissipate the heat on the heat dissipation fins 32 through the heat dissipation, the equipment is kept at a proper working temperature for working.

Claims (8)

1. A novel narrow linewidth fiber laser comprises a heat dissipation device (3) and a protective shell (6), and is characterized in that: a protective shell (6) is arranged below the heat dissipation device (3), a heat exhaust port (4) is formed in the heat dissipation device (3), a display screen (2) is arranged at the front end of the protective shell (6), an adjusting knob (1) is arranged at the lower end of the display screen (2), a power button (8) is arranged at the left end of the adjusting knob (1), an outer connecting hole (7) is formed at the upper end of the power button (8), an external power line (5) is arranged on the protective shell (6), a foot pad (9) is arranged at the bottom end of the protective shell (6), a stabilizing base (11) is arranged inside the protective shell (6), an expansion link (10) is arranged above the stabilizing base (11), a spring (12) is arranged on the expansion link (10), and a laser element (14) is arranged at the top end of the expansion link (10), the laser element (14) is provided with a fixing rod (13).
2. The novel narrow linewidth fiber laser of claim 1, wherein: the heat dissipation device (3) is composed of a fixing hole (31), a heat dissipation sheet (32), a fan device (33), a heat transfer plate (34), a heat conduction sheet (35) and a rotating shaft (36), the heat transfer plate (34) is arranged above the heat conduction sheet (35), the heat dissipation sheet (32) is arranged above the heat transfer plate (34), the rotating shaft (36) is arranged in the heat dissipation sheet (32), the fixing hole (31) is formed in the heat dissipation sheet (32), and the fan device (33) is arranged on the rotating shaft (36).
3. The novel narrow linewidth fiber laser of claim 2, wherein: the fan device (33) is composed of fan blades (331) and a fan bearing (332), and the fan blades (331) are arranged on the fan bearing (332).
4. The novel narrow linewidth fiber laser of claim 1, wherein: the protective shell (6) is 180mm long, 85mm wide and 30mm high.
5. The novel narrow linewidth fiber laser of claim 1, wherein: the three springs (12) and the three telescopic rods (10) are arranged, and the three springs (12) and the three telescopic rods (10) are the same in size.
6. The novel narrow linewidth fiber laser of claim 2, wherein: the number of the fixing holes (31) is four, and the four fixing holes (31) are the same in size.
7. The novel narrow linewidth fiber laser of claim 2, wherein: the radiating fins (32), the heat transfer plates (34) and the heat conducting fins (35) are all made of copper.
8. A novel narrow linewidth fiber laser as claimed in claim 3, wherein: the fan blades (331) are eight in number, and the eight fan blades (331) are the same in size.
CN201811506914.XA 2018-12-10 2018-12-10 Novel narrow linewidth fiber laser Pending CN111293578A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201811506914.XA CN111293578A (en) 2018-12-10 2018-12-10 Novel narrow linewidth fiber laser

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201811506914.XA CN111293578A (en) 2018-12-10 2018-12-10 Novel narrow linewidth fiber laser

Publications (1)

Publication Number Publication Date
CN111293578A true CN111293578A (en) 2020-06-16

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ID=71025315

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201811506914.XA Pending CN111293578A (en) 2018-12-10 2018-12-10 Novel narrow linewidth fiber laser

Country Status (1)

Country Link
CN (1) CN111293578A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112563875A (en) * 2020-12-30 2021-03-26 潍坊华光光电子有限公司 Array type ultra-narrow linewidth laser

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112563875A (en) * 2020-12-30 2021-03-26 潍坊华光光电子有限公司 Array type ultra-narrow linewidth laser

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Application publication date: 20200616