CN201450221U - Multifunctional head of optical fiber laser - Google Patents
Multifunctional head of optical fiber laser Download PDFInfo
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- CN201450221U CN201450221U CN2009200341903U CN200920034190U CN201450221U CN 201450221 U CN201450221 U CN 201450221U CN 2009200341903 U CN2009200341903 U CN 2009200341903U CN 200920034190 U CN200920034190 U CN 200920034190U CN 201450221 U CN201450221 U CN 201450221U
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- fiber laser
- optical fiber
- ping
- laser
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- 239000013307 optical fiber Substances 0.000 title claims abstract description 37
- 239000000835 fiber Substances 0.000 claims description 42
- 238000002310 reflectometry Methods 0.000 claims description 9
- 239000011248 coating agent Substances 0.000 claims description 6
- 238000000576 coating method Methods 0.000 claims description 6
- 230000003287 optical effect Effects 0.000 abstract 1
- 102100022116 F-box only protein 2 Human genes 0.000 description 5
- 101000824158 Homo sapiens F-box only protein 2 Proteins 0.000 description 5
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000000694 effects Effects 0.000 description 4
- 102100024513 F-box only protein 6 Human genes 0.000 description 3
- 101001052796 Homo sapiens F-box only protein 6 Proteins 0.000 description 3
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000005086 pumping Methods 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 1
- 239000007844 bleaching agent Substances 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 230000007123 defense Effects 0.000 description 1
- 238000010330 laser marking Methods 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 238000003466 welding Methods 0.000 description 1
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Abstract
The utility model relates to a multi-functional head of an optical fiber laser. The head comprises an output optical fiber OF, a head cap EC of the output optical fiber OF and a lens group (L). The multi-functional head of an optical fiber laser also comprises a flat-flat mirror FO. The output optical fiber OF, the head cap EC of the output optical fiber OF, the lens group (L) and the flat-flat mirror FO are orderly arranged on one same optical circuit. The multifunctional head of an optical fiber laser can be used at the two ends of an optical fiber laser. The utility model is small and compact, and integrates the functions of feedback and alignment output. The multifunctional head of an optical fiber laser can simultaneously provide feedback for the resonant cavity of optical fiber laser and realize alignment output for the optical fiber laser.
Description
Technical field
The utility model relates to a kind of fiber laser, relates in particular to a kind of termination of multifunctional light fibre laser.
Background technology
Because have that volume is little, in light weight, simple in structure, conversion efficiency is high, the life-span is long, stable performance, beam quality advantages of higher, fiber laser is widely used in fields such as industrial processes, modern national defense, medical engineerings.Development and production fiber laser have formed a huge industry in countries such as U.S., morals, and present high-capacity optical fiber laser has reached thousands of watts level, is widely used in the fields such as cutting, welding and laser marking of materials such as metal.
Business-like fiber laser is an all optical fibre structure, as shown in Figure 1.Wherein F is the gain fibre of fiber laser, and C is a pumping coupler, and the pump light of semiconductor laser LD is by the pumping of pumping coupler C realization to gain fibre F.FBG1 and FBG2 are two fiber gratings.FBG1 is to the high reflection of laser (is 99.9% as reflectivity), and FBG2 is to the low reflection of laser (as 10%).FBG1 and FBG2 constitute a pair of chamber mirror of fiber laser.OC is the output collimator by the fiber laser of lens (group) formation, but the laser alignment that it will send from optical fiber is the light beam of long-distance transmissions, and the theory structure of OC is shown in Fig. 2.
The output collimator OC of fiber laser is by the output optical fibre OF of fiber laser, end cap (endcap) EC of output optical fibre and lens (group) the L formation that plays collimating effect among Fig. 2.
In actual production was used, the major defect of business-like fiber laser shown in Figure 1 was: need to use fiber grating that feedback is provided, and the development of fiber grating and production technology complexity need expensive instrument and equipment.And the fiber grating operation wavelength can be drifted about with variation of temperature, causes the output instability of fiber laser.In addition, the load power of fiber grating is limited, can bleach when high power, even can be wiped free of, and causes the laser performance variation, lifetime.
The utility model content
In order to solve the above-mentioned technical problem that exists in the background technology, the utility model provide a kind of can be simultaneously for laser resonant cavity provide feedback and realize fiber laser termination to the output of optical-fiber laser collimation, it can replace the fiber grating FBG in the conventional fiber laser and the collimater OC of output.
Technical solution of the present utility model is: a kind of fiber laser termination, comprise the end cap EC of output optical fibre OF, output optical fibre, the set of lenses L of a collimating effect, its special character is: described fiber laser termination has also comprised the Ping-Ping mirror FO of feedback (output) effect; End cap EC, the set of lenses L of described output optical fibre OF, output optical fibre and Ping-Ping mirror FO is set in turn on the same light path.
Be coated with reflectance coating on above-mentioned Ping-Ping mirror FO to laser.
The above-mentioned reflectivity that is coated with the Ping-Ping mirror FO of reflectance coating is 5%～99.9%.
The utility model has the advantages that: the utility model adopts lens (group) and has the multi-functional termination of the Ping of certain reflectivity-Ping mirror formation fiber laser, this device can be used for the fiber laser two ends, small and exquisite, compact, to feed back with the collimation output function integrated, can for providing feedback and realization, export laser resonant cavity simultaneously the collimation of optical-fiber laser. simultaneously, the utility model also can be used for developing fiber laser, and can replace the fiber grating in the conventional fiber laser and the collimater of output, not only simplified the structure of laser, also can avoid fiber laser because the laser output performance problem of unstable that the unstable properties of fiber grating is brought, therefore can avoid high-power down because the laser performance variation that fiber grating causes, problems such as lifetime. owing to simplify the structure of fiber laser, can effectively reduce the development and the production cost of fiber laser simultaneously.
Description of drawings
Fig. 1 is the general structural representation of fiber laser in the prior art;
Fig. 2 is the theory structure schematic diagram of fiber laser output collimator OC in the prior art;
Fig. 3 is the theory structure schematic diagram of laser provided by the utility model termination.
Embodiment
Referring to Fig. 3, the utility model provides a kind of fiber laser termination FOFLE (Feedback andOutput Fiber Laser End), comprise end cap (endcap) EC 2 of one section output optical fibre OF 1, output optical fibre and lens (group) L 3 that plays collimating effect, this fiber laser termination also comprises the Ping-Ping mirror FO 4 with certain reflectivity; The end cap of output optical fibre OF 1, output optical fibre (endcap) EC 2, lens (group) L 3 and Ping-Ping mirror FO 4 are set in turn on the same light path.
The reflectivity that is coated with the Ping-Ping mirror FO 4 of reflectance coating is 5%～99.9%, can realize different reflectivity according to the difference of reflectance coating.
The laser that output optical fibre OF 1 sends expands bundle through end cap EC 2, becomes collimated light beam again behind lens (group) L 3.Collimated light beam is through having the Ping-Ping mirror FO 4 of certain reflectivity, and a part is fed the back into optical fibers laser, and another part becomes the output laser of laser.Ping-Ping mirror FO 4 can realize different reflectivity (as 5%～99.9%) by plated film.
The multi-functional termination FOFLE of the utility model fiber laser has the function of collimation and feedback concurrently, when Ping of the present utility model-Ping mirror FO 4 for high reflectance (as 99.9%) then FOC can replace the FBG1 (structure of FBG1 such as Fig. 1) of existing fiber laser and then realize unity feedback; When Ping of the present utility model-Ping mirror FO 4 be antiradar reflectivity (as 10%) then FOC can substitute the FBG 2 and the OC (structure of FBG 2 and OC such as Fig. 1) of existing fiber laser simultaneously, realize the part feedback and the collimation output function of laser.
Claims (3)
1. multifunctional optical fiber laser termination comprises the end cap EC and lens (group) L of output optical fibre OF, output optical fibre, and it is characterized in that: described fiber laser termination also comprises Ping-Ping mirror FO; End cap EC, the set of lenses L of described output optical fibre OF, output optical fibre and Ping-Ping mirror FO is set in turn on the same light path.
2. multifunctional optical fiber laser according to claim 1 termination is characterized in that: be coated with reflectance coating on described Ping-Ping mirror FO.
3. multifunctional optical fiber laser according to claim 2 termination is characterized in that: the described reflectivity that is coated with the Ping-Ping mirror FO of reflectance coating is 5%～99.9%.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200341903U CN201450221U (en) | 2009-08-11 | 2009-08-11 | Multifunctional head of optical fiber laser |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009200341903U CN201450221U (en) | 2009-08-11 | 2009-08-11 | Multifunctional head of optical fiber laser |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201450221U true CN201450221U (en) | 2010-05-05 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009200341903U Expired - Fee Related CN201450221U (en) | 2009-08-11 | 2009-08-11 | Multifunctional head of optical fiber laser |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201450221U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044828A (en) * | 2010-12-02 | 2011-05-04 | 福州高意通讯有限公司 | Optical fiber end surface structure of high-power optical fiber laser |
-
2009
- 2009-08-11 CN CN2009200341903U patent/CN201450221U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044828A (en) * | 2010-12-02 | 2011-05-04 | 福州高意通讯有限公司 | Optical fiber end surface structure of high-power optical fiber laser |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| ASS | Succession or assignment of patent right |
Owner name: XI AN, SHAANXI PROVINCE Free format text: FORMER OWNER: XI-AN INST. OF OPTICS AND FINE MECHANICS, CHINESE ACADEMY OF SCIENCES Effective date: 20120621 |
|
| C41 | Transfer of patent application or patent right or utility model | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20120621 Address after: 710119 Xi'an high tech Zone, Shaanxi, No. 17 information Avenue Patentee after: No. 17 information Avenue, Xi'an hi tech Development Zone Address before: 710119 Xi'an province high tech Zone New Industrial Park Information Avenue, No. 17 Patentee before: XI'AN INSTITUTE OF OPTICS AND PRECISION MECHANICS OF CAS |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100505 Termination date: 20140811 |
|
| EXPY | Termination of patent right or utility model |