CN201425634Y - Device for realizing all-fiber coupling of photonic crystal fibers - Google Patents
Device for realizing all-fiber coupling of photonic crystal fibers Download PDFInfo
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- CN201425634Y CN201425634Y CN2009201323847U CN200920132384U CN201425634Y CN 201425634 Y CN201425634 Y CN 201425634Y CN 2009201323847 U CN2009201323847 U CN 2009201323847U CN 200920132384 U CN200920132384 U CN 200920132384U CN 201425634 Y CN201425634 Y CN 201425634Y
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Abstract
The utility model provides a device for realizing all-fiber coupling of photonic crystal fibers. The device comprises a translational stage, an optical fiber clamp, a cutting knife, a detector, a platform driving controller, a main controller and a fusion splicer for fusing and splicing the optical fibers after being cut, wherein the optical fiber clamp and the cutting knife are arranged on the translational stage; the detector is arranged above the cutting knife and is electrically connected with the main controller; and the main controller is electrically connected with the translational stage through the platform driving controller. Gradient index fibers and coreless fibers can be fused and spliced between PCFs (photonic crystal fiber) and conventional step-Index fibers by utilizing thedevice, so that high-intensity and low-energy consumption all-fiber coupling and fusion splicing between PCFs (photonic crystal fiber) and conventional step-Index fibers is realized.
Description
Technical field
The utility model belongs to the optical fiber implement device, relates in particular to a kind of full optical fiber coupling implementation device of photonic crystal fiber.
Background technology
(Photonic Crystal Fiber PCF) has unique waveguiding structure and optical characteristics to photonic crystal fiber.Contain around its fibre core along axial regularly arranged small airport, can accurately control its mode field area, numerical aperture, polarization and chromatic dispersion by the change that airport distributes.Compare with conventional fiber, PCF has special advantages in the optical fiber source application: 1, can realize the single mode area, can also realize single mode transport when guaranteeing high-output power.2, possess higher nonlinear factor, have higher efficient aspect nonlinear optical fibre laser and the super continuous spectrums generation.But because its inner microcellular structure, photonic crystal fiber is difficult to realize high-level efficiency low-loss welding coupling with conventional fiber, becomes the key factor of its practicability development of restriction.
The full fused fiber splice coupling process of photonic crystal fiber mainly contains direct burning-on method and transition optical fiber burning-on method two big classes at present.Directly burning-on method mainly contains arc welding method, CO
2Laser instrument burning-on method, graphite heating burning-on method.Utilize in the fusion process of these methods to PCF and conventional step-refraction index silica fibre, the collapse-deformation of airport is the principal element that causes splice loss, splice attenuation, so must accurately control the welding parameter in fusion process does not subside with the airport that guarantees PCF, if but the airport of welding point does not subside, will cause heat seal strength not enough, under the effect of external carbuncle, the welding point is easy to fracture, influences its application.The transition optical fiber method mainly contains the optical fiber lens method, thermal diffusion becomes modulus method, reaches conical fiber change modulus method.Can it mainly be the coupling welding that thereby the mould field changes and realizes two optical fiber mode fields after utilizing doped fiber to be heated that thermal diffusion becomes modulus method, but utilize the method to be decided by the doping characteristic of fiber core; It is by diameter that draws awl change optical fiber and then the mould field coupling welding that realizes two optical fiber that conical fiber becomes modulus method, but its physical arrangement is changed; The mould field coupling welding of two optical fiber is realized in the transmission mode field that the optical fiber lens method mainly utilizes the focus characteristics of graded index silica fibre to change light beam.
The utility model content
Technical problem to be solved in the utility model is, a kind of full optical fiber coupling implementation device of photonic crystal fiber is provided, and can realize and conventional step index optical fiber high strength, low-loss full optical fiber coupling welding.
In order to solve the problems of the technologies described above, the utility model embodiment provides a kind of full optical fiber coupling implementation device of photonic crystal fiber to comprise translation stage, fiber clamp, cutter, detector, platform driving governor, master controller and will cut the optical fiber splicer that back optical fiber carries out welding, described fiber clamp and cutter are arranged on the described translation stage, described detector is arranged at the top of described cutter and electrically connects with described master controller, and described master controller electrically connects by platform driving governor and described translation stage.
In the technical program, after being arranged at optical fiber on the fiber clamp, according to optical fiber in advance preseting length move translation stage, after translation stage moves into place, utilize detector and master controller to detect in real time, fix a point to cut by cutter again, utilize optical fiber splicer two sections optical fiber to be carried out welding at cut point.Like this, utilize this implement device can be, thereby realize and conventional step index optical fiber high strength, low-loss full optical fiber coupling welding welding gradient index fibre and coreless fiber between PCF and the conventional step index optical fiber.
Description of drawings
Fig. 1 is the structural representation of the full optical fiber coupling implementation device of a kind of photonic crystal fiber of providing of the utility model embodiment.
Embodiment
In order to make the technical problems to be solved in the utility model, technical scheme and beneficial effect clearer,, the utility model is further elaborated below in conjunction with drawings and Examples.Should be appreciated that specific embodiment described herein only in order to explanation the utility model, and be not used in qualification the utility model.
The utility model embodiment provides a kind of full optical fiber coupling implementation method of photonic crystal fiber, in PCF and treat welding gradient index fibre and coreless fiber between the conventional step index optical fiber of welding.
Particularly, at first with of the coreless fiber mutually welding of above-mentioned step index optical fiber with one section predetermined length, again with the gradient index fibre of one section predetermined length of coreless fiber welding, gradient index fibre again with the PCF welding, make PCF form the subsidence area of predetermined length at weld.
Select the type of graded index transition optical fiber according to the mould field parameter of PCF that treats welding and step index optical fiber, carry out analog computation again and obtain optimized gradient index fibre length L g, PCF subsidence area length L c and coreless fiber length L r; Therefore, utilize this optimized gradient index fibre length L g, PCF subsidence area length L c and coreless fiber length L r to come welding, can guarantee the coupling coupling of mould field as predetermined length.
In the present embodiment, PCF and step index optical fiber specifically are to realize welding like this:
(1) at first utilize optical fiber splicer the step index optical fiber and coreless fiber welding mutually for the treatment of welding, this weld is first welding point.Optical fiber after the welding is placed into the high precision Cutting platform, accurately move to first cut point by automatic translation stage, utilize the ultrasound wave cutter to fix a point to cut, the first cut point position is the optimization predetermined length Lr of above-mentioned coreless fiber to the length of the welding point first time.
(2) utilize optical fiber splicer at the first cut point place welding gradient index fibre, this weld is second welding point.Optical fiber after the welding is placed into the high precision Cutting platform, accurately move to second cut point by automatic translation stage, utilize the ultrasound wave cutter to fix a point to cut, the second cut point position is the optimization predetermined length Lg of above-mentioned gradient index fibre to the length of the welding point second time.
(3) utilize optical fiber splicer at the second cut point place welding PCF again, PCF is subsided at the weld airport, the length of this subsidence area is the optimization predetermined length Lc of above-mentioned subsidence area.
Like this, the coreless fiber and the gradient index fibre of two sections definite length of welding between conventional step index optical fiber and PCF, the high strength welding is subsided the airport at PCF welding point place and is formed the subsidence area of predetermined length.Gradient index fibre makes the laser of two ends incident form Gauss's convergent beam as optical fiber lens and exports from an other end, process is equivalent to the coreless fiber of free transmission range and the subsidence area of PCF converges in the mould field of conventional fiber and PCF, realizes the coupling coupling of mould field.Because PCF welding area pore subsides, realized the high strength welding of PCF and conventional step index optical fiber, again because the loss of subsiding and being caused as the free space transmission range, and then has been avoided in the zone after subsiding, thereby realized the low-loss welding.
See also Fig. 1, the utility model embodiment provides a kind of full optical fiber coupling implementation device of photonic crystal fiber, is used for the full optical fiber coupling implementation method of above-mentioned photonic crystal fiber.This implement device comprises translation stage 1, fiber clamp 2, cutter 3, detector 4, platform driving governor 5, master controller 6 and will cut the optical fiber splicer (not shown) that back optical fiber carries out welding.
Wherein, can set up high-precision optical microscope 7 between above-mentioned cutter 3 and the detector 4, to strengthen the real-time detection effect of detector 4.In the present embodiment, used optical microscope 7 is the OlympusSZX7-ILST microscope, and enlargement factor is 100 times, operating distance 90mm; Used cutter 3 are the AutoCleaver of NYFORS
TMUltrasound wave fiber cut cutter, can cut the thickest diameter is 600 micron fiber; Automatically displacement moves the M-511.DD high-precision three-dimensional translation stage that platform is a PI company, and precision reaches 1 micron; Used optical fiber splicer is the FSU15 jumbo fiber heat sealing machine of Ericsson, and weldable maximum fiber diameter is 800 micron fiber; Used detector 4 is a ccd detector; Used master controller 6 comprises computing machine and display, and display and computing machine electrically connect.
Therefore, the full optical fiber coupling implementation device of a kind of photonic crystal fiber that provides for the technical program, after being arranged at optical fiber on the fiber clamp 2, according to optical fiber in advance preseting length move translation stage 1, after translation stage 1 moves into place, utilize detector 4 and master controller 6 to detect in real time, fix a point to cut by cutter 3 again, utilize optical fiber splicer two sections optical fiber to be carried out welding at cut point.Like this, utilize this implement device can be, thereby realize and conventional step index optical fiber high strength, low-loss full optical fiber coupling welding welding gradient index fibre and coreless fiber between PCF and the conventional step index optical fiber.
The above only is preferred embodiment of the present utility model; not in order to restriction the utility model; all any modifications of within spirit of the present utility model and principle, being done, be equal to and replace and improvement etc., all should be included within the protection domain of the present utility model.
Claims (5)
1, a kind of full optical fiber coupling implementation device of photonic crystal fiber, it is characterized in that: comprise translation stage, fiber clamp, cutter, detector, platform driving governor, master controller and will cut the optical fiber splicer that back optical fiber carries out welding, described fiber clamp and cutter are arranged on the described translation stage, described detector is arranged at the top of described cutter and electrically connects with described master controller, and described master controller electrically connects by platform driving governor and described translation stage.
2, the full optical fiber coupling implementation device of photonic crystal fiber as claimed in claim 1 is characterized in that: be provided with the high-precision optical microscope between described cutter and the detector.
3, the full optical fiber coupling implementation device of photonic crystal fiber as claimed in claim 1 is characterized in that: described cutter are ultrasound wave fiber cut cutter.
4, the full optical fiber coupling implementation device of photonic crystal fiber as claimed in claim 1, it is characterized in that: described detector is a ccd detector.
5, as the full optical fiber coupling implementation device of each described photonic crystal fiber of claim 1-4, it is characterized in that: described master controller comprises computing machine and display, and described display and computing machine electrically connect.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201323847U CN201425634Y (en) | 2009-06-05 | 2009-06-05 | Device for realizing all-fiber coupling of photonic crystal fibers |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009201323847U CN201425634Y (en) | 2009-06-05 | 2009-06-05 | Device for realizing all-fiber coupling of photonic crystal fibers |
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| CN201425634Y true CN201425634Y (en) | 2010-03-17 |
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| CN2009201323847U Expired - Fee Related CN201425634Y (en) | 2009-06-05 | 2009-06-05 | Device for realizing all-fiber coupling of photonic crystal fibers |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571611B (en) * | 2009-06-05 | 2011-05-18 | 阮双琛 | All-fiber coupling implementation device and method of photonic crystal fiber |
| CN102169209A (en) * | 2011-05-19 | 2011-08-31 | 北京工业大学 | Method for low loss welding and end face treatment of photonic crystal optical fiber |
-
2009
- 2009-06-05 CN CN2009201323847U patent/CN201425634Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101571611B (en) * | 2009-06-05 | 2011-05-18 | 阮双琛 | All-fiber coupling implementation device and method of photonic crystal fiber |
| CN102169209A (en) * | 2011-05-19 | 2011-08-31 | 北京工业大学 | Method for low loss welding and end face treatment of photonic crystal optical fiber |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100317 Termination date: 20120605 |