CN203039221U - Signal and pump laser hybrid integrated device - Google Patents
Signal and pump laser hybrid integrated device Download PDFInfo
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- CN203039221U CN203039221U CN 201220426844 CN201220426844U CN203039221U CN 203039221 U CN203039221 U CN 203039221U CN 201220426844 CN201220426844 CN 201220426844 CN 201220426844 U CN201220426844 U CN 201220426844U CN 203039221 U CN203039221 U CN 203039221U
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- pumping laser
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Abstract
The utility model relates to a signal and pump laser hybrid integrated device. In a structure, a plurality of multi-mode pump laser dies, at least a single-mode signal laser die, all light path shaping lenses and 90 DEG reflectors are installed in a same laser housing, and are coupled in a same output optical fiber. An output port of the single-mode signal laser die is corresponding to a set of light path shaping lenses and 90 DEG reflectors. Each output port of the pump laser dies is corresponding to a set of light path shaping lenses and the 90 DEG reflectors. All the 90 DEG reflectors are not overlapped with each other and corresponding reflected lights are aligned with a same condensing lens. After the condensing lens, the lights are coupled into a same output optical fiber to output, wherein signal light is coupled into a fiber core of the output optical fiber, and pump light is coupled into a section of the output optical fiber. Using the signal and pump laser hybrid integrated device to replace a conventional complex optical path system, optical design is simplified, and the signal and pump laser hybrid integrated device is compact in structure, and is reliable, stable, and has good performance.
Description
Technical field
The utility model belongs to semiconductor packages coupling field, relates to the mixing integrated optical fiber coupling semiconductor laser of a kind of single mode signal and multimode pumping laser, relates in particular to signal and the pumping laser mixing integrated device of fiber laser, fiber amplifier.
Background technology
Fiber laser has that beam quality is excellent, conversion efficiency is high, full light channel structure, advantage such as easy to maintenance, is extensively applied to a lot of industrial circles at present, such as: material cutting, boring, welding, mark etc.Common method obtains the single mode of high light beam quality, accurate single-mode laser by using doubly clad optical fiber, in doubly clad optical fiber at present, fibre core is by flashlight, by optical-fiber bundling device, makes to be coupled into pump light in the covering, by doped fiber, make flashlight amplify then.Wherein core devices fiber-optic signal, pump combiner in coupling process, can exist in various degree signal and pumping loss, and this brings test for the high-power stability of device, reliability, and loss simultaneously also can influence back level amplification effect and beam quality.High-power fiber amplifier has also used similar principle.Conventional light path design makes signal optical source and pump light source, uses individual semiconductor device separately, is coupled by optical-fiber bundling device, and this just makes light path too complicated, huge, and circuit control is too loaded down with trivial details.
Summary of the invention
The purpose of this utility model is in order to overcome defective and the problem that above-mentioned prior art exists, a kind of signal and pumping laser synthesis module are provided, fibre core is coupled into flashlight in the output optical fibre of the present utility model, be coupled into pump light in the covering, the utility model structure replaces traditional complex optical path system, simplify optical design, compact conformation, reliable, stable, performance is good.
The technical solution of the utility model is:
A kind of signal and pumping laser mixing integrated device, comprise at least one single mode signal laser tube core, a plurality of multimode pumping laser tube core, with light path shaping lens and 90 ° of speculums, a collector lens and an output optical fibre of the identical cover of tube core number, it is characterized in that: a plurality of multimode pumping laser tube cores, single mode signal laser tube core, all light path shaping lens and 90 ° of speculums all are installed in the same laser housing, and are coupled in the same output optical fibre; Corresponding cover light path shaping lens and the 90 ° of speculums of the delivery outlet of each single mode signal laser tube core, corresponding cover light path shaping lens and the 90 ° of speculums of each pumping laser tube core delivery outlet, and 90 ° of all speculums spatially non-overlapping copies and corresponding reverberation are all aimed at same collector lens, through behind the collector lens, be coupled to same output optical fibre output, wherein flashlight is coupled to the fibre core of output optical fibre, and pump light is coupled to the cross section of output optical fibre.
The wavelength of described single mode signal laser tube core is the signal wavelength of 1064nm, 1550nm or any and the rear-earth-doped Active Optical Fiber correspondence used.
The wavelength of described a plurality of multimode pumping laser tube cores is the pumping wavelength of 915nm, 980nm or any and the rear-earth-doped Active Optical Fiber correspondence used, and the optical maser wavelength in a plurality of pumping laser tube cores is identical or different.
The signal laser number of die is one at least, and signal laser is incident to the fibre core of output optical fibre, and the signal laser tube core is one or more, the identical or different wavelength of signal laser wavelength in a plurality of signal laser tube cores.
Described output optical fibre is single cladded fiber, multi-clad, photonic crystal fiber, polarization maintaining optical fibre, multi-core fiber, fiber bundle or Active Optical Fiber.
The fibre core of described output optical fibre be in rectangle, square, ellipse, polygon, the circle one of.
Described light path shaping lens and 90 ° of speculums all are coated with corresponding rete.
The utility model realizes simultaneously, and fibre core is coupled into flashlight in the output optical fibre, is coupled into pump light in the covering, and this structure replaces traditional complex optical path system, simplifies optical design, compact conformation, reliable, stable, and performance is good.
Description of drawings
Fig. 1 be the utility model embodiment provide front view.
Fig. 2 a is prism plated film reflectance curves.
Fig. 2 b is prism plated film reflectance curves.
Fig. 3 a is that laser tube is arranged schematic diagram.
Fig. 3 b is schematic diagram after the shaping of arranging of Fig. 3 a laser tube.
Fig. 4 is the doubly clad optical fiber structure.
Fig. 5 is conventional fiber laser light path schematic diagram.
Fig. 6 is to use fiber laser schematic diagram of the present utility model.
Fig. 7 is the fiber bundle coupling schematic diagram.
Fig. 8 is the coupling schematic diagram of multicore multi-clad.
Wherein among Fig. 4, Fig. 8: 20-core fibre, 21-first covering, 22-second covering.
Embodiment
The utility model will be further described by reference to the accompanying drawings.
As shown in Figure 1, the laser synthesis module, comprise housing 7, signal laser tube core 8, two pumping laser tube cores 1, three cover light path shaping lens and 90 ° of speculums, collector lens 10, output optical fibre 5, a signal laser tube core 8, two pumping laser tube cores 1, three cover light path shaping lens and 90 ° of speculums, collector lenses 10 are installed in the housing 7 the optical registration output optical fibre 5 of collector lens 10 transmissions respectively; Corresponding cover light path shaping lens and the 90 ° of speculums of signal laser tube core 8 delivery outlets, corresponding cover light path shaping lens and the 90 ° of speculums of each pumping laser tube core 1 delivery outlet, and the reverberation of 90 ° of speculums of every cover is all aimed at collector lens 10, and signal laser makes light be incident upon on 90 ° of speculums 15 by a cover light path shaping lens 13; One pumping laser makes light be incident upon on 90 ° of speculums 4 by another set of light path shaping lens (2,3), and another pumping laser makes light be incident upon on 90 ° of speculums by another set of light path shaping lens; 90 ° of speculums of pumping and 90 ° of speculums of signal are non-overlapping copies spatially, behind collector lens 10, is coupled into output in the output optical fibre 5.
Because fiber laser and fiber amplifier are when in use, there is certain reflection in flashlight, there was certain Fresnel reflection in end face when reflection was mainly derived from the high anti-material of processing and space coupling, if reverberation is strong especially, reflex in pumping laser tube core 1 or the signal laser tube core 8, can cause irreversible damage to tube core, take place for fear of this situation, the utility model can plate different retes at minute surface, illustrate, general fiber laser, signal light wavelength is 1064nm, the pump light wavelength is 915nm, for fear of 1064nm wavelength reflection damage pumping laser die 1, plate 915nm high transmittance film layer in shaping lens 2,1064nm high-reflecting film layer plates 915nm high-reflecting film layer at 90 ° of reflecting optics 4 simultaneously, 1064nm high transmittance film layer, make that like this 1064nm flashlight that reflects can't enter pumping laser tube core 1, above-mentioned high transmittance film layer, transmitance is greater than 99.9%; Equally for fear of pump light damage signal laser die 8, plate 1064nm high transmittance film layer on the shaping lens 13,915nm high-reflecting film layer, simultaneously plate 1064nm high-reflecting film layer at 90 ° of reflecting optics 15,915nm high transmittance film layer makes that like this 915nm flashlight reflect can't entering signal laser die 8, above-mentioned high transmittance film layer, transmitance is specifically being seen Fig. 2 a, Fig. 2 b greater than 99.9%.
Shown in Fig. 3 a, pump laser and signal laser are staggered in gradient in the space, and the light path axle center is staggered each other, and is not overlapping, and the light path shaping lens by separately and collimating lens make and be shown in Fig. 3 b when hot spot reaches fiber end face separately.
Output optical fibre 5 is single cladded fiber, multi-clad, photonic crystal fiber, polarization maintaining optical fibre, multi-core fiber or Active Optical Fiber.Figure 4 shows that conventional fiber laser doubly clad optical fiber, fibre core 10-125 NA=0.08/0.46, fiber end face can plate anti-reflection film, the 1064nm flashlight is coupled in the 10um fibre core, the 915nm pump light is coupled in the 125um ground floor covering, in order to improve brightness, the 915nm pump light does not also influence total around being coupled into fibre core.Extensively, flashlight also can be other wavelength lasers, such as different wave lengths such as 1310nm, 1550nm, 2000nm, pump light also can be other wavelength lasers 808nm, 915nm, 965nm, 975nm, 980nm, 1064nm, 1280nm etc., and does not limit to and listed various wavelength.
As shown in Figure 5, present MOPA structured optical fiber laser optical route 1064nm seed source, the pump signal coupler, the 915nm pumping source, doped fiber, grating and transmission wire jumper are formed.The pump signal coupler plays flashlight and pump light is coupled into effect in the doubly clad optical fiber, and 915nm pumping source and 1064nm flashlight are made of semiconductor laser module separately.
As shown in Figure 6, use the light path system of the utility model structure, combine 915nm pumping source, 1064nm flashlight, 3 kinds of device functions of pump signal coupler, make that whole optical path, circuit structure have obtained simplifying greatly, improved compact, stability, the reliability of coupling efficiency and system.
As shown in Figure 1, have only 2 pumping laser tube cores, 1 signal laser tube core among the figure, output optical fibre is doubly clad optical fiber, promote, the pumping laser tube core can be a plurality of, quantity 3,6,8,18 etc., and the wavelength of pumping laser tube core can be identical also different, pumping laser tube core can be also multimodes of single mode; The signal laser tube core is also a plurality of, quantity 3,6,8,18 etc., and the wavelength of signal laser tube core can be identical also different, and the signal laser tube core can be also multimode of single mode; Output optical fibre 5 is multi-core fiber also, or fiber bundle.
As shown in Figure 7, output optical fibre 5 is a kind of fiber bundles, this fiber bundle is made up of multifiber, optical fiber can be single cladded fiber, multi-clad, photonic crystal fiber, polarization maintaining optical fibre, multi-core fiber, fiber bundle or Active Optical Fiber, fibre core can also be rectangle, square, ellipse etc., the perhaps combination of these optical fiber according to design requirement, uses the utility model to go into required different laser coupled in the fibre core or covering of needs;
As shown in Figure 8, output optical fibre 5 is a kind of multicore multi-clad schematic diagrames, use the utility model can use the signal laser tube core of 975nm, 1080nm, three kinds of different wave lengths of 1064nm, be coupled in the fiber core, use the pumping laser tube core of 915nm, two kinds of different wave lengths of 960nm, be coupled in first and second coverings.And same covering and fibre core also can be coupled into different wavelength of laser.
Claims (8)
1. a signal and pumping laser mixing integrated device, comprise at least one single mode signal laser tube core, a plurality of multimode pumping laser tube core, with light path shaping lens and 90 ° of speculums, a collector lens and an output optical fibre of the identical cover of tube core number, it is characterized in that: a plurality of multimode pumping laser tube cores, single mode signal laser tube core, all light path shaping lens and 90 ° of speculums all are installed in the same laser housing, and are coupled in the same output optical fibre; Corresponding cover light path shaping lens and the 90 ° of speculums of the delivery outlet of each single mode signal laser tube core, corresponding cover light path shaping lens and the 90 ° of speculums of each pumping laser tube core delivery outlet, and 90 ° of all speculums spatially non-overlapping copies and corresponding reverberation are all aimed at same collector lens, through behind the collector lens, be coupled to same output optical fibre output, wherein flashlight is coupled to the fibre core of output optical fibre, and pump light is coupled to the cross section of output optical fibre.
2. signal as claimed in claim 1 and pumping laser mixing integrated device is characterized in that: the wavelength of described single mode signal laser tube core is the signal wavelength of 1064nm, 1550nm or any and the rear-earth-doped Active Optical Fiber correspondence used.
3. signal as claimed in claim 1 and pumping laser mixing integrated device, it is characterized in that: the wavelength of described a plurality of multimode pumping laser tube cores is the pumping wavelength of 915nm, 980nm or any and the rear-earth-doped Active Optical Fiber correspondence used, and the optical maser wavelength in a plurality of pumping laser tube cores is identical or different.
4. signal as claimed in claim 1 and pumping laser mixing integrated device is characterized in that: the identical or different wavelength of signal laser wavelength in a plurality of single mode signal laser tube cores.
5. signal as claimed in claim 1 and pumping laser mixing integrated device, it is characterized in that: described output optical fibre is single cladded fiber, multi-clad, photonic crystal fiber, polarization maintaining optical fibre, multi-core fiber, fiber bundle or Active Optical Fiber.
6. signal as claimed in claim 5 and pumping laser mixing integrated device is characterized in that: the fibre core of described output optical fibre be in ellipse, polygon, the circle one of.
7. signal as claimed in claim 5 and pumping laser mixing integrated device, it is characterized in that: described polygon is rectangle or square.
8. as the described signal of one of claim 1-2 and pumping laser mixing integrated device, it is characterized in that: described light path shaping lens and 90 ° of speculums all are coated with corresponding rete.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426844 CN203039221U (en) | 2012-08-27 | 2012-08-27 | Signal and pump laser hybrid integrated device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220426844 CN203039221U (en) | 2012-08-27 | 2012-08-27 | Signal and pump laser hybrid integrated device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203039221U true CN203039221U (en) | 2013-07-03 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220426844 Withdrawn - After Issue CN203039221U (en) | 2012-08-27 | 2012-08-27 | Signal and pump laser hybrid integrated device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820607A (en) * | 2012-08-27 | 2012-12-12 | 武汉锐科光纤激光器技术有限责任公司 | Signal and pumping laser hybrid integrated device |
-
2012
- 2012-08-27 CN CN 201220426844 patent/CN203039221U/en not_active Withdrawn - After Issue
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102820607A (en) * | 2012-08-27 | 2012-12-12 | 武汉锐科光纤激光器技术有限责任公司 | Signal and pumping laser hybrid integrated device |
| CN102820607B (en) * | 2012-08-27 | 2014-01-15 | 武汉锐科光纤激光器技术有限责任公司 | Signal and pumping laser hybrid integrated device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20130703 Effective date of abandoning: 20140115 |
|
| RGAV | Abandon patent right to avoid regrant |