CN2543080Y - 1XN mechanical photoswitch device - Google Patents
1XN mechanical photoswitch device Download PDFInfo
- Publication number
- CN2543080Y CN2543080Y CN 02227010 CN02227010U CN2543080Y CN 2543080 Y CN2543080 Y CN 2543080Y CN 02227010 CN02227010 CN 02227010 CN 02227010 U CN02227010 U CN 02227010U CN 2543080 Y CN2543080 Y CN 2543080Y
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- optical
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- type mechanical
- lens
- switch device
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Abstract
A 1 plus N type mechanical optical switch device comprises a single-fiber input collimator, a multi-fiber output element and a light path converting device which is arranged between the single-fiber input collimator and the multi-fiber output element. The multi-fiber output element comprises a plurality of output fibers which are distributed around optical axis; the light path converting device comprises a focusing lens, which can correspond to the corresponding output fiber by deviation of rendezvous point of light of the focusing lens from the optical axis and can convert light path into different output fiber by rotation of the focusing lens.
Description
[technical field]
The utility model is about a kind of 1 * N type mechanical optical switch device, particularly realizes 1 * N type mechanical optical switch device that light path is switched about a kind of by rotation one condenser lens.
[background technology]
Photoswitch is a kind of all signal paths in optical transmission line or the integrated optical circuit to be changed or the optical passive component of logical operation mutually, it is widely used in optical fiber telecommunications system, optical fiber network system, optical fiber measurement system and optical fiber sensing system etc., is one of crucial optical device in the optical communication field.
According to the principle of work of photoswitch, it can be divided into mechanical optical switch and non-mechanical optical switch two big classes.Mechanical optical switch utilization machinery, electromagnetic mode are moved optical fiber or optical element, thereby realize the switching of light beam between different output ports.Wherein, moving fiber type photoswitch is realized the switching of light path by moving fiber, but because of fibre diameter is little, is easy to produce flexural deformation in the moving process, and it is bigger to cause inserting loss, influences optical signal transmission.Mobile optical element type photoswitch is another kind of mechanical optical switch, and its input end fiber and output terminal optical fiber maintain static, and by the switching of reaching light path of moving of optical element, it is lower that this kind photoswitch inserts loss, generally is not more than 2dB; Isolation is higher, generally greater than 45dB; And not being subjected to the influence of wavelength and polarization, is present comparatively a kind of mechanical optical switch of widespread usage.
Prior art as shown in Figure 1, it is a United States Patent (USP) the 5th, 420, a kind of 1 * N type mechanical optical switch that is disclosed for No. 946.One input optical fibre 110 and collimation lens 111 constitute an input end 100 in order to input optical signal.Wherein, collimation lens 111 is directional light in order to the light signal collimation with input optical fibre 110 inputs.A plurality of output terminals 103 and these input end 100 approximate vertical, and be arranged on the plane around this input end 100, circle-shaped array formed.Each output terminal 103 all has an output optical fibre 101 and an output collimation lens 102.Wherein, output collimation lens 102 1 ends link to each other with output optical fibre 101, are coupled to output optical fibre 101 in order to will export light signal focusing.One reflection unit 115 moving axis 130 that can rotate rotates freely, and this rotation axis 130 and output terminal 100 are in line.One reflecting surface 120 of reflection unit 115 is aimed at mutually with input end 100 and a plurality of output terminal 103, order about reflection unit 115 by drive unit (figure does not show) and rotate on diverse location, this reflecting surface 120 can reflex to different output terminals 103 with the light signal of input end 100 input, thereby realizes the switching of light signal 101 of the output optical fibres of input end 100 and different output terminals 103.
In the above-mentioned photoswitch, make the light signal collimation export corresponding output optical fibre 101 to, cause its element more, complex structure because of a plurality of output terminals 103 all need collimation lens 102; And because of it utilizes reflecting surface 120 light signal is reflexed to output terminal 103, input end 100, reflection unit 115 and output terminal 103 need accurately location, and each output terminal 103 needs accurately to set respectively, and the adjustment difficulty increases.
Therefore, provide that a kind of manufacturing is simple, compact conformation, cost be lower, the 1 * N mechanical optical switch that is easy to make is real in necessary.
[utility model content]
The purpose of this utility model is to provide a kind of manufacturing, compact conformation and lower-cost 1 * N type mechanical optical switch device of being easy to.
For achieving the above object, the utility model 1 * N type mechanical optical switch device comprises single fiber input collimating apparatus, the light path switching device of the output element of optical fiber more than one, between single fiber input collimating apparatus and many optical fiber output element.The optical axis of this input collimating apparatus and the spigot shaft coaxle of many optical fiber output element.This many optical fiber output element comprises many output optical fibres, and this output optical fibre is distributed in around it with respect to its central shaft; This light path switching device comprises a non-spherical lens.These lens have an inclined-plane to make convergent point by these lens deviate from optical axis and can be corresponding to corresponding output optical fibre, by the changeable light path of rotary-focusing lens to different output optical fibres.Just can realize switching by rotating this non-spherical lens by 1 * N light path of optical fiber head more than the single fiber collimating apparatus to.
With respect to prior art, the utility model 1 * N type mechanical optical switch device the utlity model has following advantage: because of can be realized the light path switching by rotating once the non-spherical lens that has the inclined-plane, simultaneously, products obtained therefrom is simple in structure, compact small and exquisite, both improve reliability, lowered production cost again; Because of single fiber input collimating apparatus of the present utility model, many optical fiber output element and condenser lens therebetween have an optical axis, on processing procedure, can directly use the processing procedure of optical fiber collimator, reduced links such as looking for light, light modulation.
[description of drawings]
Fig. 1 is the stereographic map of prior art 1 * N type mechanical optical switch.
Fig. 2 is the stereographic map of the utility model 1 * N type mechanical optical switch device.
Fig. 3 is the cut-open view of Fig. 2 along the III-III direction.
Fig. 4 is the left view of the many optical fiber output element in the utility model.
Fig. 5 is the cut-open view of the many optical fiber output element in the utility model.
Fig. 6 is the right view of the many optical fiber output element in the utility model.
Fig. 7 is the index path of a kind of optical path states of the utility model 1 * N type mechanical optical switch device.
Fig. 8 is the index path of the another kind of optical path states of the utility model 1 * N type mechanical optical switch device.
[embodiment]
See also Fig. 2, the utility model 1 * N type mechanical optical switch device comprises an input media 10, an output unit 30 and a light path switching device 20.Light path switching device 20 places between input media 10 and the output unit 30.
Please consult Fig. 3 together, input media 10 comprises a retaining component 11 and fixing single fiber collimating apparatus 12 thereon.This single fiber collimating apparatus 12 comprise an input optical fibre 121, accommodate this input optical fibre 121 glass capillary 124 and one the collimation lens 125.This collimation lens 125 can be a gradient-index lens, also can be non-spherical lens, changes the light that sends in the input optical fibre 125 into directional light.This retaining component 11 is fixed on the substrate 9.
Please consult Fig. 4 to Fig. 6 together, output unit 30 comprises a holding body 16 (as shown in Figure 3) and fixing many optical fiber output element 310 thereon.This many optical fiber output element 310 comprises a bare fibre holding parts 31 and an optical cable holding parts 39.Bare fibre holding parts 31 comprises the outer sleeve 34 that an outside surface has the output optical fibre bare fibre section fixing bar 32 of equidistant teeth 38, many output optical fibre bare fibre sections 33 and being immobilizated in 38 of teeth are placed in bare fibre section fixing bar 32 and output optical fibre bare fibre section 33 outsides.Output optical fibre bare fibre section 33 is positioned can fix by epoxide-resin glue behind the teeth groove.This holding body 16 is fixed on the aforesaid substrate 9 and is corresponding with input media 10.
Optical cable holding parts 39 comprises bar 35, an outer sleeve 36 in one and is immobilizated in therebetween many output optical fibre optical cable segment 37.This interior bar 35 can pass through methods such as welding, bonding and be connected with bare fibre fixing bar 32.The optical cable segment 37 of output optical fibre can further be fixed with epoxide-resin glue.
Please cooperate with reference to Fig. 2 and Fig. 3, light path switching device 20 comprises one first gear 21, one second gear 22, be used for the gear fixed station 23 of fixing first gear 21 and drive the drive unit 24 of second gear 22 again.Gear fixed station 23 comprises two sidewalls 231, fixes a ball bearing 232 on each sidewall 231.These 231 of two sidewalls have a space to hold first gear 21.The axial portions of first gear 21 is a sleeve pipe 25, and these sleeve pipe two ends are individually fixed on two bearings 232 of gear fixed station 23.This gear fixed station 23 also is fixed on the aforesaid substrate 9 and between input-output device 10,30.Fixing has a non-spherical lens 26 in this sleeve pipe 25.These non-spherical lens 26 1 ends 261 are an inclined-plane, so that the directional light that is sent by input optical fibre collimating apparatus 10 converges at a bit that departs from optical axis through thereafter.The non-spherical lens 26 in the sleeve pipe 25 of input optical fibre collimating apparatus 10, first gear 21 and the central shaft of many optical fiber output element 310 are on same straight line.First gear 21 is meshed with second gear 22, when first gear 21 rotates with respect to its central axis, non-spherical lens 26 in its sleeve pipe 25 is rotation simultaneously also, position by adjusting many optical fiber output element 310 to be making light beam through behind the non-spherical lens 26 just, and the convergent point of light beam can switch between the end face of each output optical fibre 33 of many optical fiber output element 310 just.
See also Fig. 7 and Fig. 8, adjust after input media 10, light path switching device 20 and the output unit 30, the light of being imported by input optical fibre 121 imports in the output optical fibre 33 by non-spherical lens 26; After non-spherical lens 26 was rotated with respect to its central axis, the light of being imported by input optical fibre 121 can correspondingly be imported in another output optical fibre 33, thus the function to realize that light path is switched.
Claims (8)
1. 1 * N type mechanical optical switch device, comprise single fiber input collimating apparatus, the light path switching device of the output element of optical fiber more than one and between single fiber input collimating apparatus and many optical fiber output element, this single fiber input collimating apparatus comprises an optical axis, many optical fiber output element comprises many output optical fibres, it is characterized in that: this many optical fiber output element further comprises the gear-like retaining component of many output optical fibres of a fixing, these many output optical fibres are distributed in around it with respect to this optical axis, this light path switching device comprises a condenser lens, the convergent point of the light by this condenser lens deviates from this optical axis and corresponding to corresponding output optical fibre, by the changeable light path of rotary-focusing lens to different output optical fibres.
2. 1 * N type mechanical optical switch device as claimed in claim 1 is characterized in that this condenser lens one end is the inclined-plane.
3. 1 * N type mechanical optical switch device as claimed in claim 1 is characterized in that this condenser lens is a non-spherical lens.
4. 1 * N type mechanical optical switch device as claimed in claim 1 is characterized in that this light path switching device further comprises two gears, and this condenser lens is immobilizated in wherein in the gear centre sleeve pipe.
5. 1 * N type mechanical optical switch device as claimed in claim 1 is characterized in that this single fiber input collimating apparatus comprises an input optical fibre and collimation lens.
6. 1 * N type mechanical optical switch device as claimed in claim 4 is characterized in that this light shutter device comprises that further a drive unit drives corresponding gear and rotates.
7. 1 * N type mechanical optical switch device as claimed in claim 5 is characterized in that this collimation lens is a gradient-index lens.
8. 1 * N type mechanical optical switch device as claimed in claim 5 is characterized in that this collimation lens is a non-spherical lens.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02227010 CN2543080Y (en) | 2002-04-20 | 2002-04-20 | 1XN mechanical photoswitch device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 02227010 CN2543080Y (en) | 2002-04-20 | 2002-04-20 | 1XN mechanical photoswitch device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2543080Y true CN2543080Y (en) | 2003-04-02 |
Family
ID=33703883
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 02227010 Expired - Fee Related CN2543080Y (en) | 2002-04-20 | 2002-04-20 | 1XN mechanical photoswitch device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2543080Y (en) |
-
2002
- 2002-04-20 CN CN 02227010 patent/CN2543080Y/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 | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |