CN2655474Y - Narrow-band output double-cladding optical fiber laser - Google Patents
Narrow-band output double-cladding optical fiber laser Download PDFInfo
- Publication number
- CN2655474Y CN2655474Y CN 200320109085 CN200320109085U CN2655474Y CN 2655474 Y CN2655474 Y CN 2655474Y CN 200320109085 CN200320109085 CN 200320109085 CN 200320109085 U CN200320109085 U CN 200320109085U CN 2655474 Y CN2655474 Y CN 2655474Y
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- Prior art keywords
- optical fiber
- clad optical
- bragg grating
- grating fbg
- double
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 38
- 238000005253 cladding Methods 0.000 title claims description 4
- 239000000835 fiber Substances 0.000 claims abstract description 9
- 230000003287 optical effect Effects 0.000 claims description 5
- 238000005086 pumping Methods 0.000 claims description 5
- 238000002310 reflectometry Methods 0.000 claims description 5
- 241000931526 Acer campestre Species 0.000 claims description 4
- 239000004065 semiconductor Substances 0.000 claims description 3
- 229920000260 silastic Polymers 0.000 claims description 2
- 238000003466 welding Methods 0.000 claims description 2
- 230000008878 coupling Effects 0.000 abstract 2
- 238000010168 coupling process Methods 0.000 abstract 2
- 238000005859 coupling reaction Methods 0.000 abstract 2
- 238000010586 diagram Methods 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 1
- 230000011514 reflex Effects 0.000 description 1
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- Optical Couplings Of Light Guides (AREA)
- Optical Fibers, Optical Fiber Cores, And Optical Fiber Bundles (AREA)
Abstract
A narrow-band output double-clad optical fiber laser comprises a double-clad optical fiber, and is characterized in that the input end of the double-clad optical fiber is connected with a fiber Bragg grating reflector, the other end of the fiber Bragg grating reflector is provided with a coupling lens, a pump source is arranged in front of the coupling lens, and the fiber Bragg grating reflector and an output mirror on the output end face of the double-clad optical fiber form a laser resonant cavity. The utility model has the advantages of compact structure, be convenient for integrated, can be applied to a plurality of fields.
Description
Technical field:
The utility model relates to the double-clad optical fiber laser of a kind of arrowband output.
Background technology:
The output of accomplished in many ways arrowband even monomode fiber laser has been arranged at present, such as the most frequently used be to write the Bragg grating reflector at optical fiber itself, but all be confined to lower powered fiber laser.And high-capacity optical fiber laser mainly adopts doubly clad optical fiber.Because aspects such as doping, doubly clad optical fiber can not write Bragg grating as ordinary optic fibre.Therefore high-capacity optical fiber laser mainly is broadband output, and this has just limited the application of double-clad optical fiber laser, especially in the application of non-linear optical field.
Summary of the invention:
The purpose of this utility model is to realize the arrowband output of double-cladding fiber laser.
The purpose of this utility model realizes by following measure:
A kind of arrowband output double-clad optical fiber laser, comprise doubly clad optical fiber, the input and the Fiber Bragg Grating FBG reflector that it is characterized in that this doubly clad optical fiber join, the other end of this Fiber Bragg Grating FBG reflector is provided with a coupled lens, before this coupled lens is a pumping source, and the outgoing mirror of the output end face of this Fiber Bragg Grating FBG reflector and this doubly clad optical fiber forms laserresonator.
The fibre diameter of described Fiber Bragg Grating FBG reflector is identical with the inner cladding diameter of doubly clad optical fiber, and welds together the surface coated silastic layer of described welding portion and Fiber Bragg Grating FBG reflector with doubly clad optical fiber
Described pumping source is a semiconductor laser diode.
Described Fiber Bragg Grating FBG reflector to the reflectivity of optical maser wavelength greater than 99%.
According to the requirement that reality is used, the output of doubly clad optical fiber can only be reflectivity be 4% facet as the optical fiber outgoing mirror, also can adopt FBR or other the speculum in identical wavelength reflection to the optical maser wavelength reflection with incident FBR.Incident end Fiber Bragg Grating FBG reflector and optical fiber outgoing mirror form the resonant cavity of laser generation, realize the arrowband output of large-power optical fiber laser.
Arrowband of the present utility model output double-clad optical fiber laser, compact conformation is convenient to integratedly, can be applicable to a plurality of fields.
Description of drawings:
Fig. 1 is the schematic diagram of arrowband output double-clad optical fiber laser embodiment of the present utility model.
Embodiment
See also earlier and be coated with 1, Fig. 1 is the schematic diagram of the embodiment of the utility model arrowband output double-clad optical fiber laser.Wherein pumping source 1 is a semiconductor laser diode that wavelength is 975nm, and scioptics 2 focus on and enter one section Fiber Bragg Grating FBG reflector 3 as laser mirror.The foveal reflex wavelength of this Fiber Bragg Grating FBG reflector 3 is designed to 1110nm.This Fiber Bragg Grating FBG reflector 3 welds together with doubly clad optical fiber 6, and pad 4 and this Fiber Bragg Grating FBG reflector 3 outsides apply one deck silastic-layer 5.The output of doubly clad optical fiber 6 only adopts cut surface as outgoing mirror 7, and its reflectivity is 4%, can obtain to export laser bandwidth＜0.2nm, and with the output laser bandwidth＞1.8nm of common double color plate as input mirror 7.If adopt this identical Fiber Bragg Grating FBG reflector of this Fiber Bragg Grating FBG reflector of centre wavelength and incident end 3 at output, then can obtain narrower laser output bandwidth.
Claims (5)
1, a kind of arrowband output double-clad optical fiber laser, comprise doubly clad optical fiber (6), the input and the Fiber Bragg Grating FBG reflector (3) that it is characterized in that this doubly clad optical fiber (6) join, the other end of this Fiber Bragg Grating FBG reflector (3) is provided with a coupled lens (2), this coupled lens (2) is a pumping source (1) before, and this Fiber Bragg Grating FBG reflector (3) forms laserresonator with the outgoing mirror (7) of the output end face of this doubly clad optical fiber (6).
2, output double-clad optical fiber laser in arrowband according to claim 1, the fibre diameter that it is characterized in that described Fiber Bragg Grating FBG reflector (3) is identical with the inner cladding diameter of doubly clad optical fiber (6), and weld together the surface coated silastic layer (5) of welding portion and Fiber Bragg Grating FBG reflector (3) with doubly clad optical fiber (6)
3, output double-clad optical fiber laser in arrowband according to claim 1 is characterized in that described pumping source (1) is a semiconductor laser diode.
4, arrowband according to claim 1 output double-clad optical fiber laser, it is characterized in that described Fiber Bragg Grating FBG reflector (3) to the reflectivity of optical maser wavelength greater than 99%.
5, output double-clad optical fiber laser in arrowband according to claim 1 is characterized in that described outgoing mirror (7) is the facet of reflectivity 4%, also can adopt other speculum to the optical maser wavelength reflection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109085 CN2655474Y (en) | 2003-10-21 | 2003-10-21 | Narrow-band output double-cladding optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320109085 CN2655474Y (en) | 2003-10-21 | 2003-10-21 | Narrow-band output double-cladding optical fiber laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2655474Y true CN2655474Y (en) | 2004-11-10 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320109085 Expired - Fee Related CN2655474Y (en) | 2003-10-21 | 2003-10-21 | Narrow-band output double-cladding optical fiber laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2655474Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957637A (en) * | 2014-12-10 | 2020-04-03 | 特拉迪欧德公司 | Optical cross-coupling suppression system for wavelength beam combining laser system |
-
2003
- 2003-10-21 CN CN 200320109085 patent/CN2655474Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110957637A (en) * | 2014-12-10 | 2020-04-03 | 特拉迪欧德公司 | Optical cross-coupling suppression system for wavelength beam combining laser system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |