CN2664010Y - A three-port mechanical optical switch - Google Patents
A three-port mechanical optical switch Download PDFInfo
- Publication number
- CN2664010Y CN2664010Y CN 200320122521 CN200320122521U CN2664010Y CN 2664010 Y CN2664010 Y CN 2664010Y CN 200320122521 CN200320122521 CN 200320122521 CN 200320122521 U CN200320122521 U CN 200320122521U CN 2664010 Y CN2664010 Y CN 2664010Y
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- China
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- platform
- prism
- collimating apparatus
- mechanical optical
- optical switch
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- Expired - Fee Related
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Abstract
The utility model discloses a three-part mechanical optical switch, which comprises a base with an upper cover, the base is provided with a first platform, a second platform and a collimation device clamp, wherein the second platform is positioned in the middle of the base. The first platform is arranged on one side of the second platform and provided with a relay. The relay is connected with the second platform through an elongating arm, the bottom end of the elongating arm extends to the middle part of the second platform. The collimation device clamp is arranged on the other side of the second platform. The utility model is characterized in that the switch further comprises three prisms, wherein a first prism is fixed on the bottom end of the elongating arm, a second prism and a third prism are arranged on two symmetric sides of the second platform with the elongating arm as center, three collimation devices are fixed on the collimation device clamp corresponding to with three small type triangle right-angle prisms. The first collimation device is an input collimation device corresponding to the second prism. The second and third collimation devices are output collimation device. The utility model solves the problem of mutual interference of beam in light patch collimation from technical sense, thereby improving production efficiency.
Description
Technical field
The utility model belongs to a kind of 1 * 2 mechanical optical switch, is applicable to the light letter exchange in optical communication, fiber optic network, optical fiber measurement and optical fiber sensing system and the instrument.
Background technology
Along with the fast development of communication and information network technique, people are more and more higher to the requirement of capacity, communication speed etc., and traditional telecommunication has been difficult to meet the demands.A kind of brand-new Fibre Optical Communication Technology one optical cross connection technology that occurs will fundamentally solve the electronic bottleneck problem at present, thereby realize all optical communication.Photoswitch is the Primary Component in optical cross connection and dense wave division multipurpose (DWDM) system.Photoswitch cooperates with dense wave division multiplexer, can realize the free route of each wavelength, realizes full light exchange.In recent years, the research of relevant photoswitch report was seen many day by day, and many manufacturers also begin to release or developing all kinds of photoswitches.
Usually, photoswitch can be divided into: electrodynamic mechanical type switch, micro electronmechanical array switch, magneto-optic shutter, liquid crystal shutter, electrooptical switching, thermo-optical switch, electrooptical switching and acoustooptic switch etc.Exchange media according to photoswitch divides, and photoswitch can be divided into: free space exchange photoswitch and waveguide exchange photoswitch.The electrodynamic mechanical type construction of switch is simple, and is with low cost, but switching speed slow (1～10ms level); Micro electronmechanical array switch manufacture craft requires high, and device costs an arm and a leg; There are slow problem (0.1～1ms level) equally in magneto-optic shutter and liquid crystal shutter.In addition, in electrodynamic mechanical type switch and the micro electronmechanical array switch moving-member is arranged all, therefore long-term the use can influence performance and life-span.The introduction of relevant liquid crystal shutter can (U.S.Patent 5 referring to the patent by Bellcore's application, 414,540, theme as: Frequency-selective switchemploying a frequency dispersive element, polarization dispersive element andpolarization modulation elements).The introduction of relevant magneto-optic shutter can (U.S.Patent 5,933,269, theme as: Common-lens reflectivemagneto-optical switch) referring to the patent by Lucent's application.
Summary of the invention
The utility model be at the weak point of above photoswitch intend providing a kind of exchange velocity＜3ms level, volume little, insert loss＜0.5dB, crosstalk＞the 65dB photoswitch, realize switching function by the little right-angle prism and the actuating of relay.Because what this photoswitch adopted is the light path total reflection, so the device performance parameter is all better.
To achieve these goals, the utility model adopts following technical scheme, a kind of three port mechanical optical switches, comprise the pedestal that has a loam cake, first platform is arranged on the pedestal, second platform and collimating apparatus anchor clamps, second platform is positioned at the centre position on the pedestal, on one side of second platform is first platform, and it is provided with relay, and relay links to each other with second platform by extension arm, the end of extension arm extends to the middle part of second platform, the second platform another side is the collimating apparatus anchor clamps, it is characterized in that, described switch further comprises:
Three prisms set firmly first prism at the end of extension arm, are that laterally zygomorphic both sides, center also respectively are provided with second, third prism with the extension arm on second platform;
Three collimating apparatuss are installed on the collimating apparatus anchor clamps and three corresponding positions of small-sized triangle right-angle prism, and first wherein corresponding with second prism collimating apparatus is an input collimating apparatus, and second, third collimating apparatus is output collimator.
Description of drawings
Below, with reference to accompanying drawing, for those skilled in the art that, to the detailed description of the present utility model, above-mentioned and other purposes of the present utility model, feature and advantage will be apparent.
Fig. 1 provides the overall schematic of photoswitch of the present utility model;
Fig. 2 provides the light path synoptic diagram of three port photoswitches.
Embodiment
See also Fig. 1, shown mechanical optical switch comprises the pedestal 1 that has a loam cake 10, and first platform, 101, the second platforms 102 and collimating apparatus anchor clamps 103 are arranged on the pedestal 1.Second platform 102 is positioned at the centre position on the pedestal 1, on one side of second platform 102 is first platform 101, it is provided with relay 2, relay 2 links to each other with second platform 102 by extension arm 6, the end of extension arm 6 extends to the middle part of second platform 102, the another side that is pasted with small-sized triangle right-angle prism 4, the second platforms 102 at its end is collimating apparatus anchor clamps 103.Both sides with extension arm 6 symmetries on second platform 102 also respectively are provided with a small-sized triangle right-angle prism 3,5.Position corresponding with three small-sized triangle right-angle prisms 3～5 on collimating apparatus anchor clamps 103 respectively sets firmly three small-sized collimating apparatuss 7,8,9, and wherein corresponding with prism 3 collimating apparatus 7 is the small-sized collimating apparatuss of an input, and two other is the small-sized collimating apparatus 8,9 of output.
See also Fig. 2, wherein import small-sized collimating apparatus 7, triangle right-angle prism 3,5 and export small-sized collimating apparatus 9 and constitute first group of optically-coupled, import small-sized collimating apparatus 7, triangle right- angle prism 3,4 and export small-sized collimating apparatus 8 and constitute second group of optically-coupled forms two light paths of an input, two outputs like this.
Mechanical optical switch of the present utility model has two kinds of duties, i.e. separate connection state (being called state 1) and light path swap status (being called state 2).In state 1, the port connection situation of two small-sized collimating apparatuss 7,9 is: the output of a end input → c end, first group of promptly above-mentioned optically-coupled; In state 2, the port connection situation of two small-sized collimating apparatuss 7,8 is: the output of a end input → b end, second group of promptly above-mentioned optically-coupled.
At first come investigation state 1.Light signal from the port a of small-sized input collimating apparatus 7 input, form 90 degree reflection angle through small-sized right-angle prism 3 backs, be reflected to small-sized right-angle prism 5 backs and form 90 degree reflection angle, this light beam is reflected to the first optical output port c fully, and its medium and small prism 3,5 is all on same plane.
In state 2, apply electric signal on relay 2, make relay 2 produce electromagnetic force, adhesive extension arm 6 is displaced downwardly in the first via zero diopter light beam small-sized right-angle prism 4, makes this light beam be totally reflected to the second road optical output port b by right-angle prism 4 again.And small-sized right- angle prism 3,4,5 is all on same plane.
Small-sized right- angle prism 3,4,5 in the diagram is made by common optical glass, and forms by same glass processing.The inclined-plane of prism is coated with total reflection film, and as fully reflecting surface, logical light face (two right angle faces in addition) plates anti-reflection film with the inclined-plane.
Compare with existing structure, what the utility model adopted is that miniature relay drives, and light signal is short switching time, and be 2 milliseconds typical switching time, and be 5 milliseconds switching time the longest.Solve the problem that light beam is interfered mutually when beam path alignment technically, thereby improved production efficiency.The input and output side of light signal all is located at the same side, compact conformation, and Insertion Loss is low, and it is little to crosstalk, and volume is little, is convenient to the integrated of system.
More than all embodiment only for the explanation the utility model usefulness, but not to restriction of the present utility model, person skilled in the relevant technique, under the situation that does not break away from spirit and scope of the present utility model, can also make various conversion or variation, so all technical schemes that are equal to also should belong to category of the present utility model and should be limited by each claim.
Claims (4)
1, a kind of three port mechanical optical switches, comprise the pedestal that has a loam cake, first platform is arranged on the pedestal, second platform and collimating apparatus anchor clamps, second platform is positioned at the centre position on the pedestal, on one side of second platform is first platform, and it is provided with relay, and relay links to each other with second platform by extension arm, the end of extension arm extends to the middle part of second platform, the second platform another side is the collimating apparatus anchor clamps, it is characterized in that, described switch further comprises:
Three prisms set firmly first prism at the end of extension arm, are that laterally zygomorphic both sides, center also respectively are provided with second, third prism with the extension arm on second platform;
Three collimating apparatuss are installed on the collimating apparatus anchor clamps and three corresponding positions of small-sized triangle right-angle prism, and first wherein corresponding with second prism collimating apparatus is an input collimating apparatus, and second, third collimating apparatus is output collimator.
2, mechanical optical switch according to claim 1 is characterized in that, described prism is small-sized triangle right-angle prism.
3, mechanical optical switch according to claim 2 is characterized in that, the inclined-plane of described prism all is coated with total reflection film, and the right angle face all is coated with anti-reflection film.
4, mechanical optical switch according to claim 3, it is characterized in that, the working method of described mechanical optical switch comprises two kinds: first kind of pattern constitutes first light path by described first collimating apparatus, second prism and prism and the 3rd collimating apparatus by optically-coupled, and second kind of pattern constitutes second light path by described first collimating apparatus, second prism and first prism and second collimating apparatus by optically-coupled.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122521 CN2664010Y (en) | 2003-12-17 | 2003-12-17 | A three-port mechanical optical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200320122521 CN2664010Y (en) | 2003-12-17 | 2003-12-17 | A three-port mechanical optical switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2664010Y true CN2664010Y (en) | 2004-12-15 |
Family
ID=34348644
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200320122521 Expired - Fee Related CN2664010Y (en) | 2003-12-17 | 2003-12-17 | A three-port mechanical optical switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2664010Y (en) |
-
2003
- 2003-12-17 CN CN 200320122521 patent/CN2664010Y/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| 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: 20041215 Termination date: 20111217 |