CN1333277C - Active miniature fibre-optical connector - Google Patents
Active miniature fibre-optical connector Download PDFInfo
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- CN1333277C CN1333277C CNB2005100275791A CN200510027579A CN1333277C CN 1333277 C CN1333277 C CN 1333277C CN B2005100275791 A CNB2005100275791 A CN B2005100275791A CN 200510027579 A CN200510027579 A CN 200510027579A CN 1333277 C CN1333277 C CN 1333277C
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- optical fiber
- cover plate
- single crystal
- film cover
- crystal silicon
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Abstract
The present invention relates to an active miniature optical fiber connector belonging to the technical field of optical fiber communication and comprising a single crystal silicon base, a V-shaped slot, an optical fiber, a film cover plate, a micro driver and a cantilever beam, wherein the V-shaped slot is arranged on the single crystal silicon base according to the crystalline phase direction, the film cover plate is arranged above the V-shaped slot, the micro driver is arranged on the single crystal silicon base, the micro driver is connected with the film cover plate by the cantilever beam, and the optical fiber is fixed in the V-shaped slot in the way of collimation by the release end of the film cover plate. The present invention has the advantages that the cover plate does not need to be operated by hands, and therefore, the operating precision and the regulation and control capability are remarkably improved; the optical fiber can be directly placed in the V-shaped slot; the inserting and pulling operation are not needed, which saves the reserved space and reduces the damage possibility of the optical fiber, and high precision and high reliability for collimating fixed connection are provided for the optical fiber.
Description
Technical field
What the present invention relates to is a kind of device of technical field of optical fiber communication, specifically, is a kind of active miniature fibre-optical connector.
Background technology
Optical fiber communication has become the major technique approach of high capacity information transmission, its transmission medium is exactly an optical fiber, the fixing of optical fiber is present in the communication light path in a large number with being connected, therefore, the joints of optical fibre are to use one of passive device the most widely, it is connected with each other optical fiber or optical cable with low-loss method, to realize continuing of light path.The present joints of optical fibre mainly contain 3 kinds on FC type (screw connected), SC type (direct insertion) and ST type (buckle-type).Along with the development of Optical Access Network, connector density constantly increases on optical cable density and the fibre distribution frame, and is more and more higher to the requirement of the fixedly connected mechanism of optical fiber, and aforementioned various connectors have demonstrated excessive, the too expensive shortcoming of volume.Compare with traditional precision machinery technology, micro mechanical technology (MEMS) is used for reference the integrated processing technology of ultraprecise that semiconductor technology grows up, have machining precision height, accessory size little, aim at and more superior working ability such as need not to assemble in advance, be particularly suitable for micro-optical device and systematic research exploitation, have potential low-cost manufacturing capacity in batches, more can be complementary with the size and the structure of some micro-optical devices.Therefore, it is the sharp weapon that optical precision is made, and the design of the MEMS technology being introduced the fixedly connected mechanism of free fiber has also obtained preliminary success.
Find by prior art documents, the Bostock R.M of univ cambridge uk, people such as Collier J.D have delivered " Silicon nitride microclips for the kinematic location of optical fibresin silicon V-shaped grooves " (based on the little anchor clamps of the silicon nitride film that is used for Kinematic Positioning optical fiber of silicon V-type groove) literary composition on " micromechanics engineering " 8 (1998) 343-60 at J.Micromech.Microeng., this structural design is based on V-type groove structure, adopt patterned straight silicon nitride film to cover V-type channel opening top, after optical fiber enters the V-type groove, the film folder generation of similar semi-girder fixedly press power is positioned in the V-type groove it, has constituted integral fibre-optic fixed alignment structure.Its weak point is: the structural limitations factor is many, the cost height of elastic membrane, and film clamp structure reliability is still to be tested, and maximum deficiency also is the covering plate structure design.At first, cover plate is straight, and inconvenient optical fiber imports, though can attempt to form U type structure on silicon substrate in the width and the degree of depth that import end increase groove.But silicon etching is controlled by crystal face fully, can't import between end and the V-type groove in the U type to realize seamlessly transitting, and imports bottom portion width and is the stepped change phenomenon, is not easy to optical fiber like this and smoothly imports, and more may destroy matrix.Secondly, the pattern on the cover plate diminishes the realization of allomeric function.For etching V-type groove, certain patterns of openings must on the cover board be set, but cause the discontinuous of the covering plate structure that uses as semi-girder, optical fiber might cause cover plate to damage during insertion and peel off.
Summary of the invention
The objective of the invention is to overcome the deficiencies in the prior art part, a kind of active miniature fibre-optical connector is provided, make it need not the manual control cover plate, the precision and the ability of regulation and control of operation are significantly improved, optical fiber can be placed directly in the V-type groove, need not the plug operation, saves headspace, reduce the impaired possibility of optical fiber, fixedly connected high precision of fiber optic collimator and high reliability are provided.
The present invention is achieved by the following technical solutions, the present invention includes: single crystal silicon substrate, V-type groove, optical fiber, film cover plate, microdrive and semi-girder, the V-type groove is located on the single crystal silicon substrate according to the crystalline phase direction, the film cover plate is located at V-type groove top, microdrive is located on the single crystal silicon substrate, microdrive links to each other with the film cover plate by semi-girder, and optical fiber is fixed in the V-type groove by the release end of film cover plate is collimated.
Described single crystal silicon substrate is the monocrystalline silicon piece through oxidation, and oxidated layer thickness is greater than 1 μ m.
Described monocrystalline silicon piece is 500 μ m thickness (100) silicon chips.
Described V-type groove, the A/F of its mask is less than 235 μ m.
Described optical fiber, the distance on its peak and single crystal silicon substrate surface are more than the 5 μ m, and this is 10-30 μ m apart from the best, and distance too conference influences clamping stability.
Described optical fiber, its diameter are the bare fibre of 125 μ m.
Electromagnetism or hot driving action by microdrive produce mechanical force, and via semi-girder control film cover plate, when applying electromagnetism or hot driving force, the film cover plate is opened and just optical fiber can be inserted in the V-type groove, remove electromagnetism or hot driving force, then film cover plate closing and the optical fiber that is positioned at the V-type groove produced fixedly collimating effect.
The film cover plate of the present invention's design, need not the manual control cover plate, the precision and the ability of regulation and control of operation are significantly improved, optical fiber can be placed directly in the V-type groove, need not the plug operation, save headspace, reduce the impaired possibility of optical fiber, adopt microdrive to drive the film cover plate, can simplify overall construction design greatly.
Embodiment
As shown in Figure 1, the present invention includes: single crystal silicon substrate 1, V-type groove 2, optical fiber 3, film cover plate 4, microdrive 5 and semi-girder 6, V-type groove 2 is located on the single crystal silicon substrate 1 according to the crystalline phase direction, film cover plate 4 is located at V-type groove 2 tops, microdrive 5 is located on the single crystal silicon substrate 1, microdrive 5 links to each other with film cover plate 4 by semi-girder 6, and optical fiber 3 is fixed in the V-type groove 2 by the release end of film cover plate 4 is collimated.
Described single crystal silicon substrate 1 is the monocrystalline silicon piece through oxidation, and oxidated layer thickness is greater than 1 μ m.
Described monocrystalline silicon piece is 500 μ m thickness (100) silicon chips.
Described V-type groove 2, the A/F of its mask is less than 235 μ m.
Described optical fiber 3, the distance on its peak and single crystal silicon substrate 1 surface is more than the 5 μ m, and this is 10-30 μ m apart from the best, and distance too conference influences clamping stability.
Described optical fiber 3, its diameter are the bare fibre of 125 μ m.
Claims (8)
1. active miniature fibre-optical connector, comprise: single crystal silicon substrate (1), V-type groove (2), optical fiber (3), film cover plate (4), it is characterized in that, also comprise: microdrive (5) and semi-girder (6), V-type groove (2) is located on the single crystal silicon substrate (1) according to the crystalline phase direction, film cover plate (4) is located at V-type groove (2) top, microdrive (5) is located on the single crystal silicon substrate (1), microdrive (5) links to each other with film cover plate (4) by semi-girder (6), microdrive (5) control film cover plate (4) is opened and is closed, and optical fiber (3) is fixed in the V-type groove (2) by the release end of film cover plate (4) is collimated.
2. active miniature fibre-optical connector according to claim 1 is characterized in that, described single crystal silicon substrate (1) is the monocrystalline silicon piece through oxidation.
3. active miniature fibre-optical connector according to claim 2 is characterized in that, described monocrystalline silicon piece through oxidation, and its oxidated layer thickness is greater than 1 μ m.
4. according to claim 2 or 3 described active miniature fibre-optical connectors, it is characterized in that described monocrystalline silicon piece is 500 μ m thickness (100) silicon chips.
5. active miniature fibre-optical connector according to claim 1 is characterized in that, described V-type groove (2), and the A/F of its mask is less than 235 μ m.
6. active miniature fibre-optical connector according to claim 1 is characterized in that, described optical fiber (3), and the distance on its peak and single crystal silicon substrate (1) surface is more than the 5 μ m.
7. active miniature fibre-optical connector according to claim 6 is characterized in that, described optical fiber (3), and the distance on its peak and single crystal silicon substrate (1) surface is 10-30 μ m.
8. according to claim 1 or 6 described active miniature fibre-optical connectors, it is characterized in that described optical fiber (3), its diameter are the bare fibre of 125 μ m.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100275791A CN1333277C (en) | 2005-07-07 | 2005-07-07 | Active miniature fibre-optical connector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005100275791A CN1333277C (en) | 2005-07-07 | 2005-07-07 | Active miniature fibre-optical connector |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1713010A CN1713010A (en) | 2005-12-28 |
| CN1333277C true CN1333277C (en) | 2007-08-22 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005100275791A Expired - Fee Related CN1333277C (en) | 2005-07-07 | 2005-07-07 | Active miniature fibre-optical connector |
Country Status (1)
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| CN (1) | CN1333277C (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221267B (en) * | 2008-01-07 | 2010-06-02 | 浙江大学 | Optical fiber clamper irrelated to polarization |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001013354A (en) * | 1999-06-29 | 2001-01-19 | Japan Aviation Electronics Industry Ltd | Optical part |
| JP2005018014A (en) * | 2003-06-25 | 2005-01-20 | Samsung Electro Mech Co Ltd | Mems variable optical attenuator equipped with movable optical waveguide and method for driving movable optical waveguide |
| CN1583544A (en) * | 2003-08-20 | 2005-02-23 | 台达电子工业股份有限公司 | Detecting method for micromachinery structure, micro electromechanical assembly and microdetecting structure |
| CN1587992A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Micro suspension arm beam driven light intensity modulated type optic-fiber hydrogen sensor |
-
2005
- 2005-07-07 CN CNB2005100275791A patent/CN1333277C/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001013354A (en) * | 1999-06-29 | 2001-01-19 | Japan Aviation Electronics Industry Ltd | Optical part |
| JP2005018014A (en) * | 2003-06-25 | 2005-01-20 | Samsung Electro Mech Co Ltd | Mems variable optical attenuator equipped with movable optical waveguide and method for driving movable optical waveguide |
| CN1583544A (en) * | 2003-08-20 | 2005-02-23 | 台达电子工业股份有限公司 | Detecting method for micromachinery structure, micro electromechanical assembly and microdetecting structure |
| CN1587992A (en) * | 2004-09-23 | 2005-03-02 | 上海交通大学 | Micro suspension arm beam driven light intensity modulated type optic-fiber hydrogen sensor |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101221267B (en) * | 2008-01-07 | 2010-06-02 | 浙江大学 | Optical fiber clamper irrelated to polarization |
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| Publication number | Publication date |
|---|---|
| CN1713010A (en) | 2005-12-28 |
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Granted publication date: 20070822 Termination date: 20100707 |