CN203551897U - Kilowatt collimation type isolator - Google Patents
Kilowatt collimation type isolator Download PDFInfo
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- CN203551897U CN203551897U CN201320589373.8U CN201320589373U CN203551897U CN 203551897 U CN203551897 U CN 203551897U CN 201320589373 U CN201320589373 U CN 201320589373U CN 203551897 U CN203551897 U CN 203551897U
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- polarization beam
- beam apparatus
- collimation
- water
- polarization
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Abstract
The utility model discloses a kilowatt collimation type isolator. A mode stripper 13, a collimator a3, a faraday rotator 5, a 1/2 wave plate 6 and a beam expander 17 are mounted on a positive light incidence optical axis; the collimator a3 is provided with an optical fiber pigtail 2; a polarization beam splitter a4 is mounted between the collimator a3 and the faraday rotator 5; a polarization beam splitter b7 is mounted at the right side of the 1/2 wave plate 6; the collimator a3, the faraday rotator 5, the 1/2 wave plate 6, the polarization beam splitter a4 and the polarization beam splitter b7 are mounted in a water cooling packaging device 11; the inner wall in the water cooling packaging device 12 corresponding to the polarization beam splitter a4 is provided with a -5-0 millimeters diaphragm F 12. Compared with the traditional technology, the isolator is provided with the water cooling packaging device, the cooling medium is capable of absorbing the heat which is generated in the use of the isolator. The kilowatt collimation type isolator is stable in working performance, has advantages of small insertion loss and high radiating efficiency, and is applicable to the optical field, such as high-power pulse laser.
Description
Technical field
The utility model relates to a kind of isolator, and especially a kind of high-power collimation-type isolator, belongs to laser, sensing and optical fiber communication technology field.
Background technology
Optoisolator has important effect in optical fiber communication, optical information processing system, Fibre Optical Sensor and precision optics measuring system.Its effect is the harmful effect that prevents in light path that the backward transmission light that produces due to a variety of causes produces light source and light path system.Optoisolator is that one only allows light to pass through along a direction, and stops in contrary direction the optical passive component that light passes through.Semiconductor laser, image intensifer and fiber laser etc. are for very responsive from the reflected light of connector, fusion point, wave filter etc., the above-mentioned optical device performance that may cause backward transmission light worsens even damage, therefore needs to stop reflected light with optoisolator.In optical fiber communication, by the light of optical fiber echo reflection, can well be isolated by optoisolator.
Due to technical bottleneck, the optoisolator power of current domestic use is very little, and the overwhelming majority is between several watts to tens watts.Although low power isolator technology is ripe, the technology of powerful isolator is also in the stage of fumbling.And the optoisolator performance less stables that use of Current Domestic great majority, easily there is the problems such as insertion loss is large, radiating efficiency is low, so cause the isolation of isolator not high, the consequence of job insecurity, when serious, even can damage laser instrument.Before this, the domestic optoisolator that also does not occur being used for high-power pulsed laser more than multikilowatt.Along with the development of science and technology and laser industry, more powerful optoisolator has been proposed to new requirement and new challenge.In sum, develop a kind of isolator of multikilowatt imperative.
Utility model content
The purpose of this utility model is to provide a kind of multikilowatt collimation-type isolator, this isolator stable work in work, and have advantages of that insertion loss is little, radiating efficiency is high, can be used to well in the optical fields such as high-power pulsed laser.
The technical solution of the utility model: a kind of multikilowatt collimation-type isolator, along being provided with successively mode stripper on forward light incident light axis, collimating apparatus, Faraday polarization apparatus, 1/2 wave plate and beam expander, in collimating apparatus, be from left to right provided with successively optical fiber pigtail, end cap and lens, between collimating apparatus and Faraday polarization apparatus, be provided with polarization beam apparatus a, the right side of 1/2 wave plate is provided with polarization beam apparatus b, collimating apparatus, Faraday polarization apparatus, 1/2 wave plate, polarization beam apparatus a and polarization beam apparatus b are all located in water-cooled packaging system, in water-cooled packaging system, the inwall corresponding with polarization beam apparatus a position is provided with the diaphragm of F:-5～0mm, optical fiber pigtail is connected with end cap.Wherein mode stripper can divest from fibre core and drain to the harmful lights such as the laser of the higher order mode transmitting inner cladding, has reduced the impact of harmful light on light propagation efficiency.The power that adopts the collimating apparatus of end cap and lens combination to carry is larger, and diaphragm can be broken up backlight, reduces light intensity in unit area, also can improve the load power of collimating apparatus.
In aforesaid a kind of multikilowatt collimation-type isolator, described polarization beam apparatus a and polarization beam apparatus b are comprised of 1 Tp and 1 parallelogram prism.
In aforesaid a kind of multikilowatt collimation-type isolator, described polarization beam apparatus a and polarization beam apparatus b are comprised of 4 Tps, and wherein polarization beam apparatus a mono-side is also provided with reflective mirror.
In aforesaid a kind of multikilowatt collimation-type isolator, described polarization beam apparatus a and polarization beam apparatus b are comprised of 2 Tps and 1 parallelogram prism, and wherein polarization beam apparatus a mono-side is also provided with reflective mirror.
In aforesaid a kind of multikilowatt collimation-type isolator, in polarization beam apparatus a and polarization beam apparatus b, be equipped with high-reflecting film and polarization beam splitter.
In aforesaid a kind of multikilowatt collimation-type isolator, high-reflecting film and polarization beam splitter parallel and with the axis direction angle of light be 45 °.Polarization beam splitter can be divided into the line polarisation that two bundles are vertical the nonpolarized light of incident, and wherein P polarisation passes through completely, and S polarisation is reflected with 45° angle, and exit direction becomes an angle of 90 degrees with P light; High-reflecting film can enter the reflection of S polarisation in Faraday polarization apparatus.
In aforesaid a kind of multikilowatt collimation-type isolator, between collimating apparatus and polarization beam apparatus a, be provided with diaphragm a, between polarization beam apparatus b and beam expander, be from left to right provided with successively diaphragm b and cubic prism, beam expander right side is also provided with diaphragm c, forward light from left to right can can't harm and pass through, and backlight can be blocked reflection by diaphragm, reflect away a large amount of backlights.
In aforesaid a kind of multikilowatt collimation-type isolator, described water-cooled packaging system comprises housing, waterway, water inlet and water delivering orifice, wherein one end of described housing is provided with water inlet and water delivering orifice, water inlet is located at the below of housing, water delivering orifice is located at the top of housing, is hollow structure between the outer wall of housing and inwall, and described water inlet is connected with this hollow structure with water delivering orifice, waterway is arranged on the two ends in housing, and waterway is communicated with hollow structure.In water-cooled packaging system, be provided with heat eliminating medium, heat eliminating medium can adopt water or oil.
Compared with conventional art, the utility model can provide a kind of collimation output isolator of higher-wattage, in this isolator, be provided with water-cooled packaging system, heat eliminating medium can absorb the heat producing in isolator use procedure, therefore, the stable work in work of this isolator, and have advantages of that insertion loss is little, radiating efficiency is high, in the optical field such as high-power pulsed laser that can be applicable to kilowatt.
Accompanying drawing explanation
Fig. 1, Fig. 3 and Fig. 5 are that forward light enters isolator index path;
Fig. 2, Fig. 4 and Fig. 6 are that backlight enters isolator index path.
Being labeled as in accompanying drawing: 1-diaphragm a, 2-optical fiber pigtail, 3-collimating apparatus, 4-polarization beam apparatus a, 5-Faraday polarization apparatus, 6-1/2 wave plate, 7-polarization beam apparatus b, 8-high-reflecting film, 9-polarization beam splitter, 10-reflective mirror, 11-water-cooled packaging system, 12-diaphragm, 13-mode stripper, 14-end cap, 15-diaphragm b, 16-four directions prism, 17-beam expander, 18-diaphragm c, 19-lens, 20-housing, 21-waterway, 22-water inlet, 23-water delivering orifice.
Embodiment
Below in conjunction with drawings and Examples, the utility model is further described.
Principle of work of the present utility model: forward light enters mode stripper 13 from optical fiber pigtail 2, mode stripper 13 peels off remaining pump light, through collimating apparatus 3, enter in polarization beam apparatus a4 again, under polarization beam splitter 9 effects in polarization beam apparatus a4, light is divided into P light and S light, wherein P light enters in Faraday polarization apparatus 5 through polarization beam splitter 9, and S light is polarized spectro-film 9 and reflexes on high-reflecting film 8, and S light is reflected and enters in Faraday polarization apparatus 5 under the effect of high-reflecting film 8.Both separate rapidly certain angle transmission and enter the Faraday polarization apparatus 5 of 45 °.By Faraday polarization apparatus, the vibration plane of P light and S light separately to same direction rotation 45 °.Postrotational P light and S light, after 1/2 wave plate 6, have all changed 45 ° to same direction again.P light now and S light enter in polarization beam apparatus b7, under the effect of polarization beam apparatus b7, by P light and S light compositing light beam, the light being synthesized amplifies light path through beam expander 17, realized the forward transmission of light, wherein diaphragm a1, diaphragm b15 and diaphragm c17 filter out a part of harmful light.
Backlight enters after polarization beam apparatus b7, and light is divided into P light and S light, and P light and S light are through the effect of 1/2 wave plate 6, and its vibration plane has changed 45 ° to same direction again separately.Due to the nonreciprocity of Faraday effect, P light and S light are by after Faraday polarization apparatus 5, and polarization direction is still to 45 ° of same direction rotations, and original like this P light and S light are entering polarization beam apparatus a4.P light is reflected and passes polarization beam splitter 9 and penetrates under the effect of high-reflecting film 8 high-reflecting films, S light is directly polarized spectro-film 9 and reflects, P light and S optocoupler synthesize Ray Of Light, synthetic light can not enter in collimating apparatus 3, thereby reached the target of reverse isolation, wherein diaphragm a1, diaphragm b15 and diaphragm c17 filter out a large amount of harmful lights.Diaphragm 12 can make light directly enter in heat eliminating medium, discharges the energy of light.
Wherein in water-cooled packaging system 11, be provided with heat eliminating medium, can, by the heat absorption of isolator generation, have improved the working environment of isolator, make isolator working stability.
Claims (8)
1. a multikilowatt collimation-type isolator, it is characterized in that: along being provided with successively mode stripper (13) on forward light incident light axis, collimating apparatus (3), Faraday polarization apparatus (5), 1/2 wave plate (6) and beam expander (17), in collimating apparatus (3), be from left to right provided with successively optical fiber pigtail (2), end cap (14) and lens (19), between collimating apparatus (3) and Faraday polarization apparatus (5), be provided with polarization beam apparatus a(4), the right side of 1/2 wave plate (6) is provided with polarization beam apparatus b(7), collimating apparatus (3), Faraday polarization apparatus (5), 1/2 wave plate (6), polarization beam apparatus a(4) and polarization beam apparatus b(7) be all located in water-cooled packaging system (11), in water-cooled packaging system (11) with polarization beam apparatus a(4) the corresponding inwall in position is provided with the diaphragm (12) of F:-5～0mm.Optical fiber pigtail (2) is connected with end cap (14).
2. a kind of multikilowatt collimation-type isolator according to claim 1, is characterized in that: described polarization beam apparatus a(4) and polarization beam apparatus b(7) by 1 Tp and 1 parallelogram prism, formed.
3. a kind of multikilowatt collimation-type isolator according to claim 1, it is characterized in that: described polarization beam apparatus a(4) and polarization beam apparatus b(7) by 4 Tps, formed wherein polarization beam apparatus a(4) side is also provided with a reflective mirror (10).
4. a kind of multikilowatt collimation-type isolator according to claim 1, it is characterized in that: described polarization beam apparatus a(4) and polarization beam apparatus b(7) by 2 Tps and 1 parallelogram prism, formed wherein polarization beam apparatus a(4) side is also provided with a reflective mirror (10).
5. according to a kind of multikilowatt collimation-type isolator described in claim 2 or 3 or 4, it is characterized in that: polarization beam apparatus a(4) and polarization beam apparatus b(7) in be equipped with high-reflecting film (8) and polarization beam splitter (9).
6. a kind of multikilowatt collimation-type isolator according to claim 5, is characterized in that: high-reflecting film (8) and polarization beam splitter (9) parallel and with optical axis included angle be 45 °.
7. a kind of multikilowatt collimation-type isolator according to claim 1, it is characterized in that: collimating apparatus (3) and polarization beam apparatus a(4) between be provided with diaphragm a(1), polarization beam apparatus b(7) and beam expander (17) between be from left to right provided with successively diaphragm b(15) and cubic prism (16), beam expander (17) right side is also provided with diaphragm c(18).
8. a kind of multikilowatt collimation-type isolator according to claim 1, it is characterized in that: described water-cooled packaging system (11) comprises housing (20), waterway (21), water inlet (22) and water delivering orifice (23), wherein one end of described housing (20) is provided with water inlet (22) and water delivering orifice (23), water inlet (22) is located at the below of housing (20), water delivering orifice (23) is located at the top of housing (20), between the outer wall of housing (20) and inwall, it is hollow structure, described water inlet (22) is connected with this hollow structure with water delivering orifice (23), waterway (21) is arranged in housing (20), mode stripper (13) is located in waterway (21), waterway (21) is communicated with hollow structure.Water-cooled packaging system is provided with heat eliminating medium in (11).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589373.8U CN203551897U (en) | 2013-09-23 | 2013-09-23 | Kilowatt collimation type isolator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320589373.8U CN203551897U (en) | 2013-09-23 | 2013-09-23 | Kilowatt collimation type isolator |
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| Publication Number | Publication Date |
|---|---|
| CN203551897U true CN203551897U (en) | 2014-04-16 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320589373.8U Expired - Lifetime CN203551897U (en) | 2013-09-23 | 2013-09-23 | Kilowatt collimation type isolator |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499890A (en) * | 2013-09-23 | 2014-01-08 | 深圳市创鑫激光技术有限公司 | Kilowatt-class collimation type isolator |
-
2013
- 2013-09-23 CN CN201320589373.8U patent/CN203551897U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103499890A (en) * | 2013-09-23 | 2014-01-08 | 深圳市创鑫激光技术有限公司 | Kilowatt-class collimation type isolator |
| CN103499890B (en) * | 2013-09-23 | 2015-09-30 | 深圳市创鑫激光股份有限公司 | Multikilowatt collimation-type isolator |
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Legal Events
| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP03 | Change of name, title or address |
Address after: 518103, Guangdong, Shenzhen, Baoan District manhole street and a community third industrial zone, Ming Xin Industrial Park, first, third, B Patentee after: MAXPHOTONICS Co.,Ltd. Address before: 518104, Guangdong, Shenzhen, Baoan District manhole, South Ring Road and a community third industrial zone, Ming Industrial Park, the first third West Patentee before: MAXPHOTONICS Co.,Ltd. |
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| CP02 | Change in the address of a patent holder | ||
| CP02 | Change in the address of a patent holder |
Address after: 518125 Building A2, Building A3, Building 2-3, Building A4, Building A5, Building 6, Building A2, Furong Third Road, Shajing Street, Baoan District, Shenzhen City, Guangdong Province Patentee after: MAXPHOTONICS Co.,Ltd. Address before: 518103 Shajing Street, Baoan District, Shenzhen City, Guangdong Province Patentee before: MAXPHOTONICS Co.,Ltd. |
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| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140416 |