CN100359351C - Communication switching device - Google Patents
Communication switching device Download PDFInfo
- Publication number
- CN100359351C CN100359351C CNB2005101167417A CN200510116741A CN100359351C CN 100359351 C CN100359351 C CN 100359351C CN B2005101167417 A CNB2005101167417 A CN B2005101167417A CN 200510116741 A CN200510116741 A CN 200510116741A CN 100359351 C CN100359351 C CN 100359351C
- Authority
- CN
- China
- Prior art keywords
- optical fiber
- switching device
- communication switching
- locating piece
- fin
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Landscapes
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The present invention relates to a communication switching device. The main structure of the present invention is that a pivoting block is arranged on a load bearing seat, a pivoting side groove is arranged on the pivoting block, a break block is inserted in the pivoting side groove through a sliding bar, a lower positioning block and an upper positioning block are orderly arranged on the load bearing seat, and an upper positioning groove and a lower positioning groove are chiseled respectively on the upper and the lower positioning blocks. A first optical fiber, a second optical fiber and a third optical fiber are respectively arranged in the upper and the lower positioning grooves, one end of the first optical fiber is connected by the break block, so the sliding bar is dialed by an actuator to drive the break block to move up and down in the pivoting side groove and control the first optical fiber to choose to align the second optical fiber or the third optical fiber. The loss of transmitting signals can be reduced greatly, and the purposes of positioning precisely and switching rapidly can be achieved.
Description
Technical field
The present invention relates to a kind of communication switching device, particularly a kind of communication switching device that is used for optical-fibre communications.
Background technology
In the face of the demand on communication speed and the frequency range, make that the optical fiber that possesses high frequency range advantage is especially attracted attention, also therefore driven the flourish and transformation of optical fiber communication technology now.Add optical fiber and have that low attenuation rate, transfer rate are fast, citation quality height, and plurality of advantages such as high security, make that the use of optical-fibre communications is more and more extensive.Wherein, the main function of fibre-switch (Optical Switch) is switches light signal transmission path, often applying to the backup and the maintenance of fiber optic network, thereby playing the part of very important role in optical-fibre communications field, is an indispensable communication part in fact.
General existing fibre-switch 10, as shown in Figure 1, it mainly makes structure is that a refractor 11 is fixedly arranged on the pedestal 13 moving up and down, when pedestal 13 moves on one the precalculated position, the light signal that one first optical fiber 151 is transmitted will pass to one the 3rd optical fiber 153 through the refraction action of described refractor 11.When described pedestal 13 moves to down the precalculated position, the light signal that described first optical fiber 151 is transmitted will no longer pass through described refractor 11, and directly be passed to one second optical fiber 152.
Just, described fibre-switch 10 is to drive described refractor 11 by described pedestal 13 to move up and down, and reaches the purpose that optical fiber switches.Though its mechanism design is simple and easy, yet, the light signal that it transmitted will be subjected to the influence of described refractor 11 and cause signal strength decay, and the crudy of refractor 11 itself and aging action thereof all will have a strong impact on the alignment issues between first optical fiber 151 and the 3rd optical fiber 153.
In addition, be placed between the optical fiber to reach the purpose of its switching, the necessary spacing that increases between described first optical fiber 151 and second optical fiber 152 or the 3rd optical fiber 153 owing to must having certain thickness refractor 11.Not only increased the alignment difficulties degree of optical fiber for this reason, more influenced light signal strength and quality thereof because of spacing is long.Certainly, can add a gradual index lens (GrinLens) 17 at an end of each optical fiber respectively with its alignment issues of reinforcement, but this just increases its manufacturing cost, and can't effectively promote its market competitiveness.
Summary of the invention
Fundamental purpose of the present invention, be to provide a kind of communication switching device, utilizing a sliding bar that the imperial piece of one system is plugged in a pivot joint side that is located at a pivot joint block slots, and the system of seeing through is driven piece and is connected one first optical fiber, and can utilize an actuator to stir sliding bar, control first optical fiber thus and select to aim at one second optical fiber or one the 3rd optical fiber, so not only can save assembly required man-hour, more can reach the purpose of quick switching.
Secondary objective of the present invention, be to provide a kind of communication switching device, respectively at locating piece on one and once be provided with on the locating piece xsect be with convergent aspect from shallow to deep one on locating groove and locating groove once, required positioning reference so that fiber placing and switching position to be provided, can when switching, effectively improve the easness of optical fiber align and the stability that repeats to switch thereof.
Another purpose of the present invention; be to provide a kind of communication switching device; system is driven fin and is made imperial fin once and is respectively equipped with an embedded hole on one; settle an elastic body respectively; in order to one first optical fiber of protecting it to be connected; with the serviceable life of effective lifting first optical fiber, and reach cost-effective purpose, and first optical fiber can be positioned in the locating groove really.
Another purpose of the present invention, be to provide a kind of communication switching device, with locating piece on one and once locating piece oriented side fluting and oriented side fluting once are set respectively on one, to cooperate the pivot joint block of being located on the load bearing seat, cooperatively interact by it, man-hour is assembled and effectively save in the mutual location when not only helping assembly, more can reduce the size after its assembling, and save the cost of material.
For reaching above-mentioned purpose, the invention provides a kind of communication switching device, it is mainly constructed is to include: a system is driven piece, the system that is provided with is driven perforation, and in its side be provided with on one system drive fin and once system drive fin, in order to be connected an end of one first optical fiber; One load bearing seat, be provided with a pivot joint block, and described pivot joint block is provided with a pivot joint side fluting, and be provided with a through hole that runs through described pivot joint block and described load bearing seat respectively in the position that described relatively system is driven perforation, utilize a sliding bar to wear described through hole and the imperial perforation of described system, be plugged in the described pivot joint side fluting and described system is driven piece; Locating piece once, be located at the upper surface of described load bearing seat, the position of driving fin in described relatively system down is provided with containing groove, and be provided with one with the described down interlaced following locating groove of containing groove, and respectively will described first optical fiber and one second optical fiber aim at mutually and be placed in described under on the locating groove; Locating piece on one, repeatedly place described locating piece down top, be provided with containing groove in described relatively position of going up the imperial fin of system, and be provided with locating groove on, and the described locating groove of going up is mounted with one the 3rd optical fiber in the same side of described second optical fiber in position with respect to locating groove under described; And an actuator, be located at the bottom of described load bearing seat, and include a lever arm, drive described system in order to stir described sliding bar and drive piece, and then make described first optical fiber can select to aim at described second optical fiber and described the 3rd optical fiber wherein one.
Description of drawings
Fig. 1 is the schematic perspective view of existing fiber switch;
Fig. 2 A is the perspective exploded view of a preferred embodiment of the present invention;
Fig. 2 B is the solid combination synoptic diagram of a preferred embodiment of the present invention;
Fig. 3 A is that system of the present invention is driven the diagrammatic cross-section of piece in primary importance;
Fig. 3 B is that system of the present invention is driven the diagrammatic cross-section of piece in the second place;
Fig. 4 A is the part section enlarged diagram shown in 3A figure;
Fig. 4 B is the part section enlarged diagram shown in 3B figure;
Fig. 5 is the schematic perspective view at another visual angle of the last locating piece shown in Fig. 2 A.
Description of reference numerals: 10 fibre-switch; 11 refractors; 13 pedestals; 151 first optical fiber; 152 second optical fiber; 153 the 3rd optical fiber; 17 gradual index lenses; 20 communication switching devices; 21 systems are driven piece; 211 systems are driven perforation; 212 embedded holes; System is driven fin on 213; 214 bleeder vents; 215 times system is driven fin; 216 disperse reflecting surface; 217 systems are driven and are binded the hole; 23 load bearing seats; 231 pivot joint blocks; 232 articulate the side fluting; 233 through holes; 234 sliding bars; 2 35 junction pieces; 236 bind scrobicular ring; 25 times locating pieces; 251 times containing grooves; 252 times locating grooves; 253 times observation holes; 254 times oriented side flutings; Bind groove 255 times; 256 times discharge opeing ditches; 261 elastic partss; 262 elastic bodys; Locating piece on 27; Containing groove on 271; Locating groove on 272; Observation hole on 273; Oriented side fluting on 274; Bind groove on 275; Discharge opeing ditch on 276; 28 actuators; 281 lever arms; 291 first optical fiber; 292 second optical fiber; 293 the 3rd optical fiber.
Embodiment
At first, see also that each is graphic, be the perspective exploded view that is respectively a preferred embodiment of the present invention, three-dimensional combination synoptic diagram, diagrammatic cross-section, partial enlarged drawing and go up the stereographic map at another visual angle of locating piece.As shown in the figure, communication switching device of the present invention 20 main structures are to include: a system is driven piece 21, a load bearing seat 23, once a locating piece 27 and an actuator 28 on the locating piece 25; Be used to switch one first optical fiber 291, make it to aim at one second optical fiber 292 or one the 3rd optical fiber 293.
Wherein, described system is driven piece 21 and is provided with a system and drives perforation 211, and the one side be provided with that the position staggers mutually one on system drive fin 213 and drive fin 215 with system once, in order to be connected an end of first optical fiber 291.Described load bearing seat 23 is provided with a pivot joint block 231, and described pivot joint block is provided with one and articulates side fluting 232, and is provided with a through hole 233 that runs through described pivot joint block 231 and described load bearing seat 23 respectively in the position that described relatively system is driven perforation 211.Can utilize a sliding bar 234 to wear described through hole 233 and drive perforation 211, be plugged in the described pivot joint side fluting 232 and described system is driven piece 21 with described system.
Following locating piece 25 is upper surfaces of being located at described load bearing seat 23, and is provided with containing groove 251 in the position that described relatively system is down driven fin 215.Other be provided with one with the interlaced following locating groove 252 of described down containing groove 251, and can be respectively will described first optical fiber 291 and one second optical fiber 292 aim at mutually and be placed in described under on the locating groove 252.
Last locating piece 27 is repeatedly to place the described top of locating piece 25 down.Its structure is as shown in Figure 5, the position that system is driven fin 213 on described relatively is provided with containing groove 271 on, and be provided with locating groove 272 in the described relatively position of locating groove 252 down, and can one the 3rd optical fiber 293 be placed on the locating groove 272 in the same side of described second optical fiber 292.
In addition, an elastic parts 261 can be set.The one end is fixed in described load bearing seat 23, described locating piece 25 down, described going up on locating piece 27 or the described pivot joint block 231, utilize the other end to compress described sliding bar 234, make under the state of described actuator 28 not starts, described first optical fiber 291 can directly be aimed at described second optical fiber 292, and is in primary importance as shown in Figure 3A.
The side of load bearing seat 23 still can be provided with at least one junction piece 235, can welding, spot welding, gummed or sealed mode and the described locating piece 27 of going up be bonded with each other.
System is driven piece 21 still can be provided with the imperial hole 217 of binding of the imperial perforation of at least one and described system 211 systems that communicate, and described sliding bar 234 also can be provided with a bonding groove 236 in the imperial position of binding hole 217 of described relatively system, utilize adhesive agent to be glued together, can strengthen described system and drive the effect that combines of piece 21 and described sliding bar 234, preventing that both from having any relative displacement to take place, and influence the accuracy of its location.In addition, the mode of welding, sealed or laser spot welding also can reach same in conjunction with effect.
Last system is driven fin 213 can be respectively equipped with an embedded hole 212 with the imperial fin 215 of following system, in order to settle an elastic body 262 respectively.So; the imperial fin 213 of described upward system just can see through described elastic body 262 with the imperial fin 215 of described system down be connected described first optical fiber 291; and when the imperial piece 21 of described system moves; the frictional dissipation of described first optical fiber 291 can be effectively avoided, and then the serviceable life of described first optical fiber 291 can be effectively protected.In addition, utilize the elasticity of described elastic body 262, also help described first optical fiber 291 is positioned described going up in locating groove 272 or the described locating groove 252 down really.
In the present invention, last locating groove 272 and down the xsect of locating groove 252 be to be preferable with tapered shape from shallow to deep.That is, each locating groove can be processed into the aspect of V-shape, by so design, required accurate positioning reference when described first optical fiber, 291 switching positions not only can be provided, positioning reference when more can be used as each fiber placing, and improve the stability of its aligning, and can significantly reduce the loss of transmission signal.
Last locating piece 27 and down locating piece 25 oriented side fluting 274 and oriented side fluting 254 once can be set respectively on the position of described relatively pivot joint block 231 on one, just can be directly and described pivot joint block 231 mutual assembly when assembly, and help described load bearing seat 23, described locating piece 27 or described locating piece 25 location each other down of going up, and can reach size after its assembly of effective reduction, reduce material cost and save the man-hour of assembly.
Can be provided with a plurality of grooves 255 that bind down on the following locating piece 25, respectively in order to loading slurr, and can described first optical fiber 291 and described second optical fiber 292 local cemented under described locating piece 25.The described locating piece 27 of going up also can be provided with and binds groove 275 at least one on, local cemented in described last locating piece 27 in order to described the 3rd optical fiber 293.
Certainly, slurr also can be coated the described of part simultaneously and go up on locating groove 272 or the described locating groove 252 down, and can strengthen the effect of cemented optical fiber.In order to prevent that slurr from too much influencing the start of described communication switching device 20, can cut a hole respectively and be provided with on one discharge opeing ditch 276 and discharge opeing ditch 256 once in described locating piece 27 and the described locating piece 25 down gone up, in order to the slurr of draining surplus.
In the assembly process, the alignment case for convenient processor observes each optical fiber can be provided with observation hole 273 in last locating piece 27, looks the alignment case of described first optical fiber 291 and described the 3rd optical fiber 293 in order to sight.In like manner, described locating piece 25 down also can be provided with observation hole 253, looks the alignment case of described first optical fiber 291 and described second optical fiber 292 in order to sight.In addition, aforesaid go up discharge opeing ditch 276 and down discharge opeing ditch 256 be can be respectively to go up observation hole 273 and described observation hole 253 down be provided with by described, can guarantee further that thus slurr can slime flux influence its alignment result to the fiber end face of described first optical fiber 291, described second optical fiber 292 or described the 3rd optical fiber 293 or has influence on the mobility of described first optical fiber 291.
See also Fig. 4 A and Fig. 4 B, be respectively system of the present invention and drive piece 21 in the part section enlarged diagram of the primary importance and the second place.As shown in the figure, owing to switch described first optical fiber 291 and described second optical fiber 292 or described the 3rd optical fiber 293 mutual causes of aiming at for facility, there is no any contact between described first optical fiber 291 and described second optical fiber 292 or described the 3rd optical fiber 293.For preventing that too high reflectivity from causing damage to the equipment of optical fiber network system, can be provided with at least one dispersion reflecting surface 216 in the imperial fin 213 of described upward system, the imperial fin 215 of described system down or the imperial piece 21 of system, by each disperse reflecting surface 216 effect and with the light reflection or scatter to other places, and significantly reduce the light quantity that reflects into into optical fiber, reach the purpose that reduces reflectivity.Wherein, each to disperse reflecting surface 216 are the shapes that can be processed into a tapered plane, a cambered surface or a scattering surface.
Certainly, also can or drive fin 213 at last system and carry out anti-reflex treated processing the imperial piece 21 of whole system with the imperial fin 215 of following system.For example: blasting treatment, cloudy surface are handled, dyeing is handled or coating film treatment, all can reach significantly to reduce the light quantity that reflects into into optical fiber, reaches the purpose that reduces reflectivity.
Above-mentioned following locating piece 25 is can spot welding, gummed, welding or sealed mode and combine with described load bearing seat 23, also can be directly with described locating piece 25 down and described load bearing seat 23 with integrated mode processing and manufacturing.Described pivot joint block 231 can also spot welding, gummed, welding or sealed mode are incorporated on the described load bearing seat 23, also can be directly with described pivot joint block 231 and described load bearing seat 23 with integrated mode processing and manufacturing.
At last, system was driven fin 215 and also is respectively equipped with a bleeder vent 214 that communicates with described embedded hole 212 under the imperial fin 213 of the above-mentioned system that goes up reached, in order to the described elastic body 262 of described embedded hole 212 arrangements.262 on described elastic body can be a rubber, a silica gel, an excellent power glue, plastics or a Sponge.Described actuator 28 is directly to adopt general commercially available relay or solenoid valve, saving extra cost of developing, or also can develop suitable actuator voluntarily.Described elastic parts 261 then can be a shell fragment, an elastic steel sheet or a spring, all can reach the purpose that makes described sliding bar 234 playback.
In sum, the invention relates to a kind of communication switching device, refer to a kind of communication switching device that is used for optical-fibre communications especially, can significantly reduce the transmission signal loss, more can reach accurate location and the purpose of switching fast when knowing.
The above, it only is a preferred embodiment of the present invention, be not to be used for limiting scope of the invention process, promptly all equalizations of doing according to the described shape of the present patent application claim, structure, feature and spirit change and modify, and all should be included in the claim of the present invention.
Claims (18)
1. a communication switching device is characterized in that, includes:
One system is driven piece, and the system that is provided with is driven perforation, and be provided with in its side the end that is used to be connected one first optical fiber one on system drive fin and once system drive fin;
One load bearing seat, be provided with a pivot joint block, and described pivot joint block is provided with a pivot joint side fluting, and be provided with a through hole that runs through described pivot joint block and described load bearing seat respectively in the position that described relatively system is driven perforation, utilize a sliding bar to wear described through hole and the imperial perforation of described system, described system is driven piece be plugged in the described pivot joint side fluting;
Locating piece once, be located at the upper surface of described load bearing seat, the position of driving fin in described relatively down system is provided with containing groove, and be provided with one with the described interlaced following locating groove of containing groove down, described first optical fiber and one second optical fiber are aimed at mutually and are placed on the described locating groove down;
Locating piece on one, repeatedly place described locating piece down top, be provided with containing groove in described relatively position of going up the imperial fin of system, and be provided with locating groove on, and the described locating groove of going up is mounted with one the 3rd optical fiber in the same side of described second optical fiber in position with respect to locating groove under described;
One actuator is located at the bottom of described load bearing seat, includes one and drives the lever arm that described system is driven piece in order to stir described sliding bar.
2. communication switching device as claimed in claim 1 is characterized in that: also include an elastic parts, the one end is provided in a side of described load bearing seat, described locating piece down, described going up on locating piece or the described pivot joint block, and the other end then compresses described sliding bar.
3. communication switching device as claimed in claim 2, it is characterized in that: described actuator receives a controlling signal and controls described lever arm start, and then drive described the 3rd optical fiber of described first optical fiber align, and described actuator is a relay or a solenoid valve.
4. communication switching device as claimed in claim 1 is characterized in that: described upward locating groove and the described xsect of locating groove down are to present the convergent shape respectively from shallow to deep.
5. communication switching device as claimed in claim 1 is characterized in that: described upward system is driven the position of fin and the imperial fin of described system down and is staggered mutually.
6. communication switching device as claimed in claim 1 is characterized in that: described system is driven piece and is subjected to anti-reflex treated processing.
7. communication switching device as claimed in claim 6 is characterized in that: described anti-reflex treated processing imposes on the imperial fin of described upward system, the imperial fin of described system down or the imperial piece of system.
8. communication switching device as claimed in claim 1, it is characterized in that: system is driven fin on described, described system is down driven on fin or its combined type at least one dispersion reflecting surface is set, and respectively to disperse in the reflecting surface each can be a tapered plane, a cambered surface or a scattering surface.
9. communication switching device as claimed in claim 1 is characterized in that: described upward system drives fin and the imperial fin of described system down also is respectively equipped with in order to be connected an elastomeric embedded hole of described first optical fiber and a bleeder vent that communicates with described embedded hole.
10. communication switching device as claimed in claim 1 is characterized in that: described system is driven piece and still is provided with the imperial imperial bonding of the system hole of boring a hole and communicating of at least one and described system, and described sliding bar is provided with a bonding scrobicular ring in the position that described relatively system is driven the bonding hole.
11. communication switching device as claimed in claim 1 is characterized in that: described down locating piece and the described locating piece of going up are respectively equipped with observation hole on the observation hole and in the position of optical fiber align.
12. communication switching device as claimed in claim 11 is characterized in that: described locating piece down also is provided with one by the described following discharge opeing ditch of observation hole down; And the described locating piece of going up still is provided with one by the described last discharge opeing ditch of going up observation hole.
13. communication switching device as claimed in claim 1 is characterized in that: described locating piece and the described locating piece down gone up is respectively equipped with on one oriented side fluting and oriented side fluting once in the position of described relatively pivot joint block.
14. communication switching device as claimed in claim 1 is characterized in that: described down locating piece is provided with the following bonding groove of a plurality of fillings in order to the slurr that binds described second optical fiber, described first optical fiber; Described upward locating piece is provided with at least one filling and binds groove in order to the going up of slurr of binding described the 3rd optical fiber.
15. communication switching device as claimed in claim 1 is characterized in that: described locating piece down and described pivot joint block are selected spot welding, gummed, welding or locking mode respectively and are combined with described load bearing seat.
16. communication switching device as claimed in claim 1 is characterized in that: described load bearing seat and described following locating piece are one-body molded; Described load bearing seat and described pivot joint block are one-body molded.
17. communication switching device as claimed in claim 1 is characterized in that: described load bearing seat also is provided with at least one junction piece, combines with welding, spot welding, gummed or locking mode with the described locating piece of going up.
18. communication switching device as claimed in claim 2 is characterized in that: described elastic parts is a shell fragment, an elastic steel sheet or a spring.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101167417A CN100359351C (en) | 2005-10-28 | 2005-10-28 | Communication switching device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB2005101167417A CN100359351C (en) | 2005-10-28 | 2005-10-28 | Communication switching device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1752782A CN1752782A (en) | 2006-03-29 |
| CN100359351C true CN100359351C (en) | 2008-01-02 |
Family
ID=36679718
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB2005101167417A Expired - Fee Related CN100359351C (en) | 2005-10-28 | 2005-10-28 | Communication switching device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100359351C (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104363052A (en) * | 2014-11-21 | 2015-02-18 | 索尔思光电（成都）有限公司 | Method for decreasing crosstalk of optical signals in optical cavity and optical module using method |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159649A (en) * | 1990-05-30 | 1992-10-27 | The Furukawa Electric Co., Ltd. | Optical switching connector |
| EP0576460B1 (en) * | 1991-03-18 | 1996-05-01 | Siemens Aktiengesellschaft | Device for coupling optical waveguides |
| US6325549B1 (en) * | 1999-07-13 | 2001-12-04 | Lucent Technologies Inc | Connectors for plastic optical fiber |
-
2005
- 2005-10-28 CN CNB2005101167417A patent/CN100359351C/en not_active Expired - Fee Related
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5159649A (en) * | 1990-05-30 | 1992-10-27 | The Furukawa Electric Co., Ltd. | Optical switching connector |
| EP0576460B1 (en) * | 1991-03-18 | 1996-05-01 | Siemens Aktiengesellschaft | Device for coupling optical waveguides |
| US6325549B1 (en) * | 1999-07-13 | 2001-12-04 | Lucent Technologies Inc | Connectors for plastic optical fiber |
Also Published As
| Publication number | Publication date |
|---|---|
| CN1752782A (en) | 2006-03-29 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP0935149B1 (en) | Switching element having an expanding waveguide core | |
| EP1287399B1 (en) | Micro-mechanical waveguide optical devices | |
| JP3840287B2 (en) | Optical fiber switch | |
| EP2691801B1 (en) | Optical device having an elastomeric waveguide switch body and related methods | |
| WO2004044622A3 (en) | Optical component for free-space optical propagation between waveguides | |
| CN202548374U (en) | Optical switch | |
| EP1712937A3 (en) | Optical curved directional coupler and method | |
| US7079725B2 (en) | Optical switch assembly with flex plate and method for making | |
| CN102985861A (en) | Optical collimator, optical connector using same, and holding member for optical collimator | |
| CN100359351C (en) | Communication switching device | |
| JP3499833B2 (en) | Fiber optic adapter | |
| WO2002018994A3 (en) | Planar photonic bandgap structures for controlling radiation loss | |
| CA2569748A1 (en) | Optical tube assembly having a dry insert and methods of making the same | |
| EP1195633A3 (en) | Optical transmission module and optical communication system using the same | |
| CN100492074C (en) | Isolator silicon back-etching total reflection perpendicular coupling structure and manufacture method | |
| WO2002051927A3 (en) | Low optical loss polymers | |
| CN100376920C (en) | Optical switch | |
| WO2002039152A3 (en) | Optical waveguide coupling | |
| CN102043207A (en) | Vibration-resistant optical fiber contact element | |
| EP1003060A3 (en) | Non-perpendicular optical paths for a crosstalk-inhibiting switching arrangement | |
| CN204855862U (en) | Adjustable optical attenuator based on MHD control | |
| CN221810666U (en) | Assembled UHPC superimposed sheet | |
| CN1405589A (en) | Apparatus and method for switching-over light path | |
| CN2468064Y (en) | Light switch device | |
| CN101614846B (en) | Fiber core alignment device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| 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: 20080102 Termination date: 20131028 |