CN203166299U - Miniature tunable wavelength single-mode fiber laser - Google Patents
Miniature tunable wavelength single-mode fiber laser Download PDFInfo
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- CN203166299U CN203166299U CN 201320098569 CN201320098569U CN203166299U CN 203166299 U CN203166299 U CN 203166299U CN 201320098569 CN201320098569 CN 201320098569 CN 201320098569 U CN201320098569 U CN 201320098569U CN 203166299 U CN203166299 U CN 203166299U
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- wavelength division
- light wavelength
- fiber
- resonant cavity
- division multiplexing
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Abstract
Provided is a miniature tunable wavelength single-mode fiber laser, comprising a first light wavelength division multiplexer and a second light wavelength division multiplexer respectively connected with a first semiconductor pump laser and a second semiconductor pump laser, a first output port connected with the first light wavelength division multiplexer, a second output port connected with the second light wavelength division multiplexer, and a nested dual-ring miniature resonant cavity disposed on a substrate. The nested dual-ring miniature resonant cavity is formed by two rings of an inner ring and an outer ring in different diameters, and the rings are tied off by active micro-nanofibers. The lantern ring structures are respectively coupled with a first conical fiber and a second conical fiber of common ends of the first light wavelength division multiplexer and the second light wavelength division multiplexer. The common end of the second light wavelength division multiplexer is provided with piezoelectric ceramics which is controlled by a signal generator. Through using the nested dual-ring miniature resonant cavity and changing parameters of the conical fibers and a resonant cavity coupled area, different wavelength tuning output is realized.
Description
Technical field
The utility model relates to Fibre Optical Sensor, light is integrated and the applied light source in field such as relevant detection, is a kind of based on the miniature single-mode laser of micro-nano fiber tunable wave length.
Background technology
The micro-nano single mode fiber laser of tunable wave length is that the diameter fusion with Active Optical Fiber is pulled to micron or nano-scale magnitude (being micro-nano fiber), adopt microoperation then, precision is controlled the resonant cavity that makes its looping structure, whole optical resonator diameter is hundreds of microns only, the several millimeters of length.Compare with the micro-optical chamber of traditional semiconductor etching, have following advantage: 1, the mini optical fibre laser provides gain by one section doping micro-nano fiber, and the optical resonator that gain fibre constitutes has the multiple action of filtering and frequency-selecting, compact conformation; 2, the mini optical fibre laser utilizes tapered optical fiber coupling output, because the distinctive pliability of optical fiber can design parameters such as position, coupled zone, coupling length and coupling angle arbitrarily; 3, the mini optical fibre laser structure is simple, easy to operate, and cost is very low, satisfies the different field application demand; 4, the mini optical fibre laser output wavelength is tunable.
At present, there are some shortcomings that can't overcome in the microlaser that traditional etching obtains: on the one hand, in case lithographic method obtains the microlaser moulding, just can not change its structure again, inconvenient follow-up debugging and operation; On the other hand, lithographic method cost costliness needs complicated production equipment and accurate tester that its product is carried out strictness control.Therefore, for the application of chip-scale, press for a kind of microlaser of with low cost, easy to operate, stable performance.
Utilize micro-nano fiber to make the existing report of microlaser at present, " micro-ptical-fiber ring-node laser " of utility models such as the child of Zhejiang University is favorable to the people utilizes doped fiber to be made into single ring architecture, but this structure can't realize the tuning of optical maser wavelength, also is not easy to realize single-mode laser output.Utility models such as the Li Qi of the Central China University of Science and Technology is true " micro-nano fiber filter, fiber laser, Fibre Optical Sensor equipment and manufacture method " have proposed a kind of " 8 " font structure laser cavity, the tunable output of optical maser wavelength but this structure also is unrealized.
The utility model content
The purpose of this utility model is to solve the problem of prior art aspect, proposes the miniature single mode fiber laser of a kind of novel tunable wave length.
Do not using fiber grating, under the prerequisite of elements such as F-P filter, the utility model proposes and adopt nested dicyclo miniature resonant cavity configuration, output laser must satisfy the condition of resonance of each ring simultaneously, has realized single-mode laser output simply and easily.In addition, have selectivity to different wave length laser by output optical fibre awl and nested dicyclo micro resonant cavity coupled zone, the parameter (length, angle etc.) of accurately regulating the coupled zone by piezoelectric ceramic realizes the output of different wave length laser.
The purpose of this utility model is achieved through the following technical solutions:
The miniature single mode fiber laser of a kind of tunable wave length, comprise respectively and first semiconductor pump laser, first light wavelength division multiplexing that second semiconductor pump laser is connected and second light wavelength division multiplexing, first output port that is connected with first light wavelength division multiplexing, second output port that is connected with second light wavelength division multiplexing, also comprise the nested dicyclo micro resonant cavity that is arranged on the substrate, this nested dicyclo micro resonant cavity is made of interior ring and the outer shroud of 2 tool different-diameter sizes that active micro-nano fiber is knotted into, described thimble structure is coupled with first conical fiber and second conical fiber of first light wavelength division multiplexing and the second light wavelength division multiplexing common port respectively, and the common port of described second light wavelength division multiplexing is provided with the piezoelectric ceramic that is subjected to signal generator control.
Further, the described active micro-nano fiber emitting optical fiber that is doping with rare-earth ions or transition metal ions.
Further, the tail optical fiber length of described first conical fiber and second conical fiber is 5 μ m ~ 5mm, and diameter is 0.8 ~ 5 μ m, and is complementary with the diameter of the used active micro-nano fiber of described nested dicyclo micro resonant cavity.
The Active Optical Fiber that with diameter is 0.8 ~ 5 μ m is knotted into nested dicyclo micro resonant cavity by microoperation, conical fiber is as semiconductor pump laser input and laser output, its diameter and active micro-nano fiber diameter are complementary, semiconductor pump laser is opened, the two is coupled by evanescent wave, and pump light is injected resonant cavity, and with the single-mode laser output that forms in the resonant cavity, coupling length and coupling angle by adjusting conical fiber and resonant cavity realize the tuning of optical maser wavelength.
The utility model has following main advantage compared with prior art:
The utility model adopts the active cavity structure directly as filter, in addition the high filter of cost of access.
The utility model adopts the mode of conical fiber and the coupling of mini optical fibre resonant cavity to carry out the injection of pump light and the output of signal laser, this structure flexibly is the important prerequisite of wavelength tuning, can realize the tuning output of different wave length by the parameter (coupling length, angle etc.) that changes awl optical fiber and resonant cavity coupled zone.
Description of drawings
Fig. 1 is light path device structural representation described in the utility model;
Fig. 2 is miniature union thimble resonant cavity described in the utility model and optical taper structural representation;
Fig. 3 is the spectrogram of the utility model embodiment institute tuning wavelength.
Embodiment
Enforcement example and accompanying drawing below in conjunction with concrete are further described explaination to the utility model, but are not limited to this execution mode.
As shown in Figure 1, the miniature single frequency optical fiber laser of tunable wave length, constituted by union thimble micro resonant cavity 1, substrate 2, first light wavelength division multiplexing, 3, the second light wavelength division multiplexings 4, first semiconductor pump laser 5, second semiconductor pump laser 6, piezoelectric ceramic 9, signal generator 10 and first output port 7 and second output port 8.The pumping wavelength of first semiconductor pump laser 5, second semiconductor pump laser 6 is 976nm in the present embodiment, and power output is tunable, and the output tail optical fiber is monomode fiber.First semiconductor pump laser 5, second semiconductor pump laser 6 be first light wavelength division multiplexing, 3, the second light wavelength division multiplexings 4 respectively, for union thimble micro resonant cavity 1 provides pumping pumping energy (forward, reverse).Draw the awl back to link to each other with nested dicyclo micro resonant cavity 1 common port of first light wavelength division multiplexing 3.Draw the awl back to link to each other with union thimble micro resonant cavity 1 common port of second light wavelength division multiplexing 4, piezoelectric ceramic 9 is carried in the common port of second light wavelength division multiplexing 4 and controls these piezoelectric ceramic parameters by signal generator 10.Finally, laser is by first output port 7 and 8 outputs of second output port.
As shown in Figure 2, the employed union thimble micro resonant cavity 1 of the utility model is made of outer shroud 11, interior ring 12 and substrate 2.Union thimble micro resonant cavity used in the present embodiment is by the Yb codoped phosphate fibre-optical drawing, and its diameter is 1.88 μ m, and the diameter of ring is respectively 206 μ m and 351 μ m.Used substrate 2 is of a size of 1 for refractive index is 1.38 magnesium fluoride substrate in the present embodiment
2cm.
As shown in Figure 2, the employed optical taper of the utility model is drawn by the common port of first conical fiber 31 and second conical fiber 41 respectively.The terebrantia diameter is 1.9 μ m, length is 30 μ m, this structure can effectively be injected into the optical fiber of pump light by traditional core bag interface transmission in the union thimble mini optical fibre resonant cavity, and because its special structure need not be considered the infringement that its reverberation causes device.
As shown in Figure 3, the optical maser wavelength tunable optical spectrogram that the utility model embodiment exports is 2 wavelength that spacing is 1.2nm shown in the figure, can obtain more multiple-tuned wavelength by meticulous adjusting piezoelectric ceramic, does not list one by one here.
Active micro-nano fiber in the utility model is not only applicable to Yb codoped phosphate optical fiber, is applicable to all active doping optical fibres.Substrate in the utility model is not only applicable to the magnesium fluoride substrate, is applicable to that the refractive index that the aeroge method makes is lower than 1.4 various structures yet.As mentioned above, can realize the utility model preferably, above-described embodiment is preferred embodiment of the present utility model only, is not for limiting its practical range.
Claims (3)
1. miniature single mode fiber laser of tunable wave length, comprise respectively and first semiconductor pump laser (5), first light wavelength division multiplexing (3) that second semiconductor pump laser (6) is connected and second light wavelength division multiplexing (4), first output port (7) that is connected with first light wavelength division multiplexing (3), second output port (8) that is connected with second light wavelength division multiplexing (4), it is characterized in that, also comprise the nested dicyclo micro resonant cavity (1) that is arranged on the substrate (2), this nested dicyclo micro resonant cavity (1) is made of interior ring (12) and the outer shroud (11) of 2 tool different-diameter sizes that active micro-nano fiber is knotted into, described nested dicyclo micro resonant cavity (1) is coupled with first conical fiber (31) and second conical fiber (41) of first light wavelength division multiplexing (3) and second light wavelength division multiplexing (4) common port respectively, and the common port of described second light wavelength division multiplexing (4) is provided with the piezoelectric ceramic (9) that is subjected to signal generator (10) control.
2. the miniature single mode fiber laser of tunable wave length according to claim 1 is characterized in that, described active micro-nano fiber is the emitting optical fiber of doping with rare-earth ions or transition metal ions.
3. the miniature single mode fiber laser of tunable wave length according to claim 1, it is characterized in that, the tail optical fiber length of described first conical fiber (31) and second conical fiber (41) is 5 μ m ~ 5mm, diameter is 0.8 ~ 5 μ m, and is complementary with the diameter of the used active micro-nano fiber of described nested dicyclo micro resonant cavity (1).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098569 CN203166299U (en) | 2013-03-04 | 2013-03-04 | Miniature tunable wavelength single-mode fiber laser |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320098569 CN203166299U (en) | 2013-03-04 | 2013-03-04 | Miniature tunable wavelength single-mode fiber laser |
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| CN203166299U true CN203166299U (en) | 2013-08-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN 201320098569 Expired - Fee Related CN203166299U (en) | 2013-03-04 | 2013-03-04 | Miniature tunable wavelength single-mode fiber laser |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178434A (en) * | 2013-03-04 | 2013-06-26 | 华南理工大学 | Wavelength-tunable miniature single-mode optical fiber laser |
| CN109186641A (en) * | 2018-08-01 | 2019-01-11 | 中国电子科技集团公司第十研究所 | A kind of method and fibre optical sensor manufacturing fibre optical sensor |
-
2013
- 2013-03-04 CN CN 201320098569 patent/CN203166299U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103178434A (en) * | 2013-03-04 | 2013-06-26 | 华南理工大学 | Wavelength-tunable miniature single-mode optical fiber laser |
| CN103178434B (en) * | 2013-03-04 | 2016-01-20 | 华南理工大学 | A kind of Wavelength-tunable miniature single-mode optical fiber laser |
| CN109186641A (en) * | 2018-08-01 | 2019-01-11 | 中国电子科技集团公司第十研究所 | A kind of method and fibre optical sensor manufacturing fibre optical sensor |
| CN109186641B (en) * | 2018-08-01 | 2022-03-11 | 中国电子科技集团公司第十一研究所 | Method for manufacturing optical fiber sensor and optical fiber sensor |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130828 Termination date: 20160304 |
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| CF01 | Termination of patent right due to non-payment of annual fee |