CN103969751B - Mechanical optical switch interface module and mechanical optical switch - Google Patents
Mechanical optical switch interface module and mechanical optical switch Download PDFInfo
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- CN103969751B CN103969751B CN201410191139.9A CN201410191139A CN103969751B CN 103969751 B CN103969751 B CN 103969751B CN 201410191139 A CN201410191139 A CN 201410191139A CN 103969751 B CN103969751 B CN 103969751B
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Abstract
The mechanical optical switch interface module that two groups of tuning parameters of employing in mechanical optical switch interface module are identical, makes reflecting mirror fix simultaneously.Therefore, in debugging process, it is possible to debugging mechanical optical switch interface module respectively, and debugging only need to pay close attention to one group of tuning parameter between tail optical fiber and lens every time.Thus without taking into account two groups of tail optical fibers, tuning parameter between lens and reflecting mirror simultaneously, thus reduce debugging difficulty., reflecting mirror is fixed on the cell wall of fixing groove meanwhile, movable fixing between prism and fixing groove.Therefore, when high/low temperature occurs in environment, the loss of reflecting mirror does not haves a change, and light path will not be caused in the range of position allows to be subjected to displacement and significantly affect by prism.Thus in the presence of a harsh environment, the qualification rate of above-mentioned mechanical optical switch is unaffected.Additionally, also provide for a kind of mechanical optical switch.
Description
[technical field]
The present invention relates to photoswitch, particularly relate to a kind of debug mechanical type light simple, that encapsulation stationarity is high
Switch interface assembly and mechanical optical switch.
[background technology]
Photoswitch is a kind of optics with one or more optional transmission port, and its effect is to light
Optical signal in transmission line or integrated optical circuit carries out physics switching or logical operation.Photoswitch is a kind of light path
Switching device.At fibre-optic transmission system (FOTS), photoswitch is used for multiple monitor, LAN, multiple light courcess, detector
Conversion with protection Ethernet.At optical fiber testing system, for optical fiber, fiber plant is tested and network test,
Fibre Optical Sensor multiple spot monitoring system.
2*2 photoswitch is usually and is exchanged by the identical double-fiber collimator that two are debugged by bounce technique, as
Shown in Fig. 1 (a), two groups of tail optical fibers 21 and lens 22 are set.Incident illumination is via first group of tail optical fiber 21 and lens
After 22, second group of tail optical fiber 21 and reflection from lens go out.In like manner, the light path of reverse incident illumination is also similar to.
Thus optical routing Input1 → Output1, Input2 → Output2 can be realized.
As shown in Fig. 1 (b), when needs select light path, then at 2*2 photoswitch on the basis of Fig. 1 (a)
On, to insert in light path by being bonded at the reflecting mirror 23 above relay, two pairs of fine collimators are by reflecting mirror 23
Reflection, it is achieved the direction of propagation of light path changes, optical routing Input1 → Output2, Input2 →
Output1, it is achieved thereby that the function of 2*2 photoswitch.
Above-mentioned 2*2 photoswitch debugging process is relatively difficult, and reason is must to monitor bireflectance during debugging
And the parameter that double-throw is penetrated, four parameters to be taken into account simultaneously, bring great difficulty to debugging.And Fig. 1 (b)
In the reflecting mirror (mirror) used in 2*2 photoswitch be movable part, this just will to reflecting mirror return
Ask very strict, and mechanical movement is it is difficult to ensure that its homing, causes the repeatability of product to there is the biggest asking
Topic.Owing to the reflecting mirror of reflective photoswitch is removable, directly result in 2*2 photoswitch when high/low temperature,
Key index item insertion loss can occur significant change, causes product temperature dependent loss can exceed index request,
Directly affect the final qualification rate of 2*2 photoswitch.
[summary of the invention]
Based on this, the problem easily shifted for photoswitch debugging difficulty, element is necessary to provide a kind of debugging letter
Mechanical optical switch single, that encapsulation stationarity is high.
A kind of mechanical optical switch interface module, including tail optical fiber, lens and reflecting mirror, also includes for fixing
First fixed part of described tail optical fiber, for fixing the second fixed part of described lens and fixing described for simultaneously
Lens and the fixing groove of described reflecting mirror；
Described first fixed part and described second fixed part are respectively provided with hollow hole；Described first fixed part is with described
Second fixed part is provided with the fixing connection of end face of hollow hole so that be inserted in described first fixed part hollow hole
Described tail optical fiber is relatively fixed with the described lens through described second fixed part hollow hole；The groove of described fixing groove
Wall is provided with and the hollow hole of described lens major diameter fit, and described lens deviate from one end of described second fixed part and wear
Crossing the hollow hole on described fixing groove cell wall, described reflecting mirror is fixed on the groove relative with being provided with hollow hole cell wall
Wall.
Wherein in an embodiment, described first fixed part and described second fixed part are glass tubing, institute
Stating fixing groove is ceramic trough.
Wherein in an embodiment, described first fixed part is equal with the external diameter of described second fixed part, institute
The hollow hole diameter stating the first fixed part is equal with the external diameter of described tail optical fiber.
Wherein in an embodiment, described first fixed part is with the external diameter of described second fixed part
2.8mm, the hollow hole diameter of described first fixed part and the external diameter of described tail optical fiber are 1.8mm.
Wherein in an embodiment, the hollow hole diameter of described second fixed part and the hollow of described fixing groove
Bore dia is 1.0mm with the external diameter of described lens.
Wherein in an embodiment, described lens radius of curvature is set to R1.8, external diameter is set to 1mm, length
Degree is set to 3.95mm.
Wherein in an embodiment, described tail optical fiber and described lens are at a distance of 0.23mm.
The mechanical optical switch that two groups of tuning parameters of employing in above-mentioned mechanical optical switch interface module are identical connects
Mouth assembly, makes reflecting mirror fix simultaneously.Therefore, in debugging process, it is possible to debug mechanical optical switch respectively
Interface module, and debugging only need to pay close attention to one group of tuning parameter between tail optical fiber and lens every time.Thus without same
Time take into account two groups of tail optical fibers, tuning parameter between lens and reflecting mirror, thus reduce debugging difficulty.Meanwhile,
Reflecting mirror is fixed on the cell wall of fixing groove, movable fixing between prism and fixing groove.Therefore, at environment
When there is high/low temperature, the loss of reflecting mirror does not haves a change, and prism allows the model that is subjected to displacement in position
Light path will not be caused in enclosing and significantly affect.Thus in the presence of a harsh environment, above-mentioned mechanical optical switch qualified
Rate is unaffected.
Simple mechanical optical switch interface module is debugged further, it would be desirable to provide a kind of.
A kind of mechanical optical switch, wrap the mechanical optical switch interface module described in two groups of above-mentioned any one and
Reflecting prism；
The bottom land of the fixing groove in described two groups of mechanical optical switch interface modules is correspondingly provided with for placing described
The groove of reflecting prism, described reflecting prism is parallelepiped；Wherein, described reflecting prism with described instead
Penetrate mirror to be placed in parallel；Described reflecting prism is additionally operable to be connected with external switch, and described external switch is used for controlling
Described reflecting prism is placed in described groove or departs from described groove.
Wherein in an embodiment, the thickness of described reflecting prism is 1.4mm, a length of 3.0mm, and two is long
Vertical dimension between limit is 1.4mm, and the slanted angle of described reflecting prism is 45 °.
Wherein in an embodiment, described two groups of mechanical optical switch interface modules and described reflecting prism group
Become 2*2 mechanical optical switch.
Tail optical fiber in above-mentioned mechanical optical switch interface module is relatively fixed with lens, is fixed by reflecting mirror simultaneously,
Therefore, during debugging, the fibre loss parameter of tail optical fiber and lens only need to be monitored.Double without taking into account simultaneously
Reflection and double-throw such as penetrate at the parameter, thus reduce debugging difficulty.
[accompanying drawing explanation]
Fig. 1 (a) is the schematic diagram of existing 2*2 photoswitch；
Fig. 1 (b) is the schematic diagram of existing 2*2 photoswitch；
Fig. 2 is the structural representation of mechanical optical switch interface module；
Fig. 3 is one of structural representation of mechanical optical switch；
Fig. 4 is one of structural representation of mechanical optical switch.
[detailed description of the invention]
In order to make the purpose of the present invention, technical scheme and advantage more clearly, below in conjunction with accompanying drawing and enforcement
Example, the present invention is described in more detail.Should be appreciated that specific embodiment described herein is only in order to solve
Release the present invention, be not intended to limit the present invention.
A kind of mechanical optical switch interface module, including tail optical fiber, lens and reflecting mirror, also includes for fixing
First fixed part of tail optical fiber, for fixing the second fixed part of lens and fixing lens and reflecting mirror for simultaneously
Fixing groove.
First fixed part and the second fixed part are respectively provided with hollow hole；During first fixed part and the second fixed part are provided with
The end face of emptying aperture is fixing to be connected so that be inserted in the tail optical fiber of the first fixed part hollow hole and through the second fixed part
The lens of hollow hole are relatively fixed, and regulate tail optical fiber and the relatively-stationary distance of lens make tail optical fiber and lens it
Between fibre loss minimum；The cell wall of fixing groove is provided with and the hollow hole of lens major diameter fit, and lens deviate from the
One end of two fixed parts is through the hollow hole on fixing groove cell wall, and reflecting mirror is fixed on and is provided with hollow hole cell wall
Relative cell wall.
Reflecting mirror is fixed by above-mentioned mechanical optical switch interface module, therefore, during debugging, it is only necessary to
Pay close attention to the tuning parameter between tail optical fiber and lens, complete when i.e. making the fibre loss minimum between tail optical fiber and lens
Become debugging.The parameter such as penetrate, therefore, it is possible to reduce debugging difficulty without taking into account bireflectance and double-throw simultaneously.
As it is shown on figure 3, be the structural representation of mechanical optical switch interface module.
A kind of mechanical optical switch interface module, including tail optical fiber 101, lens 107 and reflecting mirror 108, also wraps
Include the first fixed part 103 for fixing tail optical fiber 101, for fix lens 107 the second fixed part 105 and
For fixing the fixing groove 109 of lens 107 and reflecting mirror 108 simultaneously.
First fixed part 103 and the second fixed part 105 are respectively provided with hollow hole；First fixed part 103 and second
Fixed part 105 is provided with the fixing connection of end face of hollow hole so that be inserted in the first fixed part 103 hollow hole
Tail optical fiber 101 is relatively fixed with the lens 107 through the second fixed part 105 hollow hole, and regulates tail optical fiber 101
And the relatively-stationary distance of lens 107 makes the fibre loss between tail optical fiber 101 and lens 107 minimum；Gu
The cell wall determining groove 109 is provided with and the hollow hole of lens 107 major diameter fit, and lens 107 deviate from the second fixed part
One end of 105 is through the hollow hole on fixing groove 109 cell wall, and reflecting mirror 108 is fixed on and is provided with hollow hole slot
The cell wall that wall is relative.
Tail optical fiber 101 makes again pigtail line, only one end have union joint, and the other end is the disconnected of an optical cable fibre core
Head, is connected with other optical cable fibre cores by welding, often goes out to be used in optical fiber terminal box, be used for connecting optical cable with
Fiber optical transceiver.
The most existing lens radius of curvature of radius of curvature of lens 107 increases, and the length of lens 107 adds
Long, make lens 107 reach the coupling requirement of double fine reflection end.Preferably, the radius of curvature of lens 107 sets
Be set to R1.8, external diameter is set to 1mm, length is set to 3.95mm.
First fixed part 103 is glass tubing.First fixed part 103 is equal with the external diameter of the second fixed part 105.
The diameter of the hollow hole of the first fixed part 103 is equal with the external diameter of tail optical fiber 101.First fixed part 103 and
The axle center of the hollow hole after the two fixing connections of fixed parts 105 is identical, and phase between tail optical fiber 101 with lens 107
Away from 0.23mm.General fixed form is: make lens 107 one end concordant with the end face of the second fixed part 105,
The other end of lens 107 is then through the hollow hole of fixing groove 109.Tail optical fiber 101 the most not with the first fixed part
The end face of 103 is concordant, the most non-bulging in the end face of the first fixed part 103.
Second fixed part 105 is glass tubing.The hollow hole diameter of the second fixed part 105 and fixing groove 109
Hollow hole diameter is equal with the external diameter of lens 107.
Owing to the first fixed part 103 is provided with the second fixed part 105, the end face of hollow hole is fixing to be connected, typically
Use bonding.And end face bonding will necessarily make between tail optical fiber 101 with lens 107 offset relative to position.
Thus cause debugging complete parameter and change.Therefore, it is to avoid the phase between tail optical fiber 101 with lens 107
Position is offset, needs the dimensional parameters of the first fixed part 103 with the second fixed part 105 is limited
Fixed.Concrete, the external diameter 2.8mm of the first fixed part 103, internal diameter 1.8mm, long 5mm, wherein first
The internal diameter of fixed part 103 is the hollow hole diameter of the first fixed part 103.And the external diameter of the second fixed part
2.8mm, internal diameter 1.0mm, long 1.5mm.Owing to the external diameter of lens 107 is 1.0mm, therefore, to
The dislocation of one fixed part 103 and the second fixed part 105 leaves enough spaces.
Fixing groove 109 is ceramic trough.Owing to the product temperature coefficient of expansion of most material is the highest, so adopting
Fixing groove 109 is designed with the pottery that temperature coefficient and glass are close.The height of the hollow hole of fixing groove 109
2.0mm, the diameter 1.0mm of hollow hole, be used to fixing lens 107 and fixing groove 109.Lens 107
External diameter is the most matched.Reflecting mirror 108 is adhered to the cell wall relative with being provided with hollow hole cell wall.
The debugging assembling flow path of mechanical optical switch interface module is as follows: first fixed with second by lens 107
Portion is bonding, then by bonding with lens 107 for fixing groove 109.Then viscous on another cell wall of fixing groove 109
Connect reflecting mirror 108.
On tail optical fiber 101 sheathed first fixed part 103 and with lens 107 carry out debugging assemble, be adjusted to insert
When fibre loss (IL) is minimum, between the first fixed part 103 and the second fixed part 105, carry out a glue solid
Changing, so far, the reflection end debugging of mechanical optical switch interface module is completed.
Tail optical fiber 101 in above-mentioned mechanical optical switch interface module is relatively fixed with lens 107, simultaneously will be anti-
Penetrate mirror 108 to fix, therefore, during debugging, only need to monitor the optical fiber damage of tail optical fiber 101 and lens 107
Consumption parameter.The parameter such as penetrate without taking into account bireflectance and double-throw simultaneously, thus reduce debugging difficulty.
As shown in Figure 3 and Figure 4, the structural representation of mechanical optical switch it is.
A kind of mechanical optical switch, wraps two groups of above-mentioned mechanical optical switch interface modules (sign) and reflection
Prism 106.
Bottom land 1092 correspondence of the fixing groove 109 in two groups of mechanical optical switch interface modules (sign) sets
Having the groove for placing reflecting prism 106, reflecting prism 106 is parallelepiped.Wherein, reflection rib
Mirror 106 is placed in parallel with reflecting mirror 108；Reflecting prism 106 is additionally operable to external switch (not shown) even
Connecing, external switch (not shown) is used for controlling reflecting prism 106 and is placed in groove or departs from groove.
The thickness of reflecting prism 106 is 1.4mm, a length of 3.0mm, and the vertical dimension between two long limits is
1.4mm.The slanted angle of reflecting prism 106 is 45 °.
Wherein, Fig. 3 is the structural representation of the mechanical optical switch that reflecting prism 106 is placed in groove.Fig. 4
The structural representation of the mechanical optical switch of groove is departed from for reflecting prism 106.Fixing groove 109 is provided with hollow
The cell wall in hole is cell wall 1091, and the cell wall for stationary mirror 108 is 1093.
Groove is located at the middle part of the bottom land 1092 of fixing groove 109.Groove length is 2.7mm, is used for placing rib
Mirror.
Preferably, two groups of mechanical optical switch interface modules (sign) and reflecting prism 106 form 2*2
Mechanical optical switch.
External switch (not shown) typically uses relay.When relay obtains electric, control reflecting prism 106
It is placed in groove.When relay electric-loss, control reflecting prism 106 and depart from groove.
Reflecting prism 106 is parallelepiped.Owing to the length, width and height of parallelepiped are (here, a width of long limit
The hypotenuse at place, a height of thickness) all make to limit, therefore the characteristic of reflecting prism 106 will not change light
The direction of propagation, does not interferes with projection parameter even if being subjected to displacement yet, and substantially increases the height of mechanical optical switch
Low-Temperature Reliability.
Owing to adding prism, cause tail optical fiber 101 to increase with the operating distance of lens 107, in order to realize because of
The mismatch problem that operating distance is brought.Therefore, the radius of curvature of lens 107 is set to R1.8, external diameter sets
It is set to 3.95mm for 1mm, length.
Based on above-described embodiment, the light path principle of mechanical optical switch is as follows:
As it is shown on figure 3, by the effect of reflecting prism 106, it is possible to realize optical routing Input1 → Output2,
Input2→Output1。
As shown in Figure 4, by the effect of reflecting mirror 108, it is possible to realize optical routing Input1 → Output1,
Input2→Output2。
Two groups of mechanical optical switch interface modules are placed in the housing designed, and then will glue reflecting prism 106
Relay put into housing, as it is shown on figure 3, when reflecting prism 106 is inserted in reflection end light path, light
Road there occurs change by reflecting prism 106, is realized by twice 90 degree of refraction actions of reflecting prism 106
Input1 → Output2, Input2 → Output1, and when reflecting prism 106 is upspring by relay
Waiting, as shown in Figure 4, light path now is exactly Input1 → Output1, Input2 → Output2.It is thus possible to
Enough realize the function of 2*2 photoswitch.
Reflecting mirror 108 in above-mentioned mechanical optical switch is non-movable part, and repeatability has obtained significantly changing
Kind.Reflecting mirror 108 is non-movable part, and is end face technique for sticking, therefore under high and low temperature environment,
The change of reflecting mirror 108 is a linear transform process, hence it is evident that improve the high/low temperature ginseng existing for original product
The defect that number is unstable.
Reflecting prism 106 is movable part, but the characteristic of reflecting prism 106 is to change the propagation of light
Direction, will not cause significant change to light path, from without to ginseng in the range of position allows to be subjected to displacement
Number brings significantly fluctuation.Therefore the final qualification rate of product is substantially increased.
The mechanical optical switch interface module that two groups of tuning parameters of employing in above-mentioned mechanical optical switch are identical,
Make reflecting mirror 108 fix simultaneously.Therefore, in debugging process, it is possible to debugging mechanical optical switch interface respectively
Assembly, and debugging only need to pay close attention to the tuning parameter between one group of tail optical fiber 101 and lens 107 every time.Thus nothing
The tuning parameter between two groups of tail optical fibers 101, lens 107 and reflecting mirror 108 need to be taken into account simultaneously, thus reduce
Debugging difficulty.Meanwhile, reflecting mirror 108 is fixed on the cell wall 1093 of fixing groove 109, reflecting prism 106
And it is movable fixing between fixing groove 109.Therefore, when there is high/low temperature in environment, the loss of reflecting mirror 108
Do not have a change, and light path will not be caused in the range of position allows to be subjected to displacement by reflecting prism 106
Significantly affect.Thus in the presence of a harsh environment, the qualification rate of above-mentioned mechanical optical switch is unaffected.
Embodiment described above only have expressed the several embodiments of the present invention, and it describes more concrete and detailed,
But therefore can not be interpreted as the restriction to the scope of the claims of the present invention.It should be pointed out that, for this area
Those of ordinary skill for, without departing from the inventive concept of the premise, it is also possible to make some deformation and
Improving, these broadly fall into protection scope of the present invention.Therefore, the protection domain of patent of the present invention should be with appended
Claim is as the criterion.
Claims (10)
1. a mechanical optical switch interface module, including tail optical fiber, lens and reflecting mirror, it is characterised in that
Also include the first fixed part for fixing described tail optical fiber, for fixing the second fixed part and the use of described lens
In the fixing groove fixing described lens and described reflecting mirror simultaneously；
Described first fixed part and described second fixed part are respectively provided with hollow hole；Described first fixed part is with described
Second fixed part is provided with the fixing connection of end face of hollow hole so that be inserted in described first fixed part hollow hole
Described tail optical fiber is relatively fixed with the described lens through described second fixed part hollow hole；The groove of described fixing groove
Wall is provided with and the hollow hole of described lens major diameter fit, and the hollow hole of described fixing groove is used for fixing lens with solid
Determining groove, described lens one end is concordant with the end face of described second fixed part, and it is solid that described lens deviate from described second
The one end determining portion passes the hollow hole on described fixing groove cell wall, and described reflecting mirror is fixed on and is provided with hollow hole
The cell wall that cell wall is relative.
Mechanical optical switch interface module the most according to claim 1, it is characterised in that described first
Fixed part and described second fixed part are glass tubing, and described fixing groove is ceramic trough.
Mechanical optical switch interface module the most according to claim 1, it is characterised in that described first
Fixed part is equal with the external diameter of described second fixed part, the hollow hole diameter of described first fixed part and described tail
Fine external diameter is equal.
Mechanical optical switch interface module the most according to claim 1, it is characterised in that described first
The external diameter of fixed part and described second fixed part is 2.8mm, the hollow hole diameter of described first fixed part with
The external diameter of described tail optical fiber is 1.8mm.
Mechanical optical switch interface module the most according to claim 1, it is characterised in that described second
Hollow hole diameter and the hollow hole diameter of described fixing groove of fixed part are with the external diameter of described lens
1.0mm。
Mechanical optical switch interface module the most according to claim 1, it is characterised in that described lens
Radius of curvature is set to R1.8, external diameter is set to 1mm, length is set to 3.95mm.
Mechanical optical switch interface module the most according to claim 1, it is characterised in that described tail optical fiber
With described lens at a distance of 0.23mm.
8. a mechanical optical switch, it is characterised in that include two groups of the claims 1-7 any one
Described mechanical optical switch interface module and reflecting prism；
The bottom land of the fixing groove in described two groups of mechanical optical switch interface modules is correspondingly provided with for placing described
The groove of reflecting prism, described reflecting prism is parallelepiped；Wherein, described reflecting prism with described instead
Penetrate mirror to be placed in parallel；Described reflecting prism is additionally operable to be connected with external switch, and described external switch is used for controlling
Described reflecting prism is placed in described groove or departs from described groove.
Mechanical optical switch the most according to claim 8, it is characterised in that the thickness of described reflecting prism
Degree is 1.4mm for the vertical dimension between the long limit of 1.4mm, a length of 3.0mm, two, described reflecting prism
Slanted angle is 45 °.
Mechanical optical switch the most according to claim 8, it is characterised in that described two groups of mechanical types
Photoswitch interface module and described reflecting prism composition 2*2 mechanical optical switch.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191139.9A CN103969751B (en) | 2014-05-07 | 2014-05-07 | Mechanical optical switch interface module and mechanical optical switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410191139.9A CN103969751B (en) | 2014-05-07 | 2014-05-07 | Mechanical optical switch interface module and mechanical optical switch |
Publications (2)
| Publication Number | Publication Date |
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| CN103969751A CN103969751A (en) | 2014-08-06 |
| CN103969751B true CN103969751B (en) | 2016-09-28 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201410191139.9A Active CN103969751B (en) | 2014-05-07 | 2014-05-07 | Mechanical optical switch interface module and mechanical optical switch |
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Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109031535B (en) * | 2018-08-10 | 2020-12-18 | 安徽无限光通讯有限公司 | Single-mode mechanical optical switch |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4208094A (en) * | 1978-10-02 | 1980-06-17 | Bell Telephone Laboratories, Incorporated | Optical switch |
| CN2570814Y (en) * | 2002-09-29 | 2003-09-03 | 常泽洲 | Mechanical optical switch |
| US6931170B2 (en) * | 2002-10-18 | 2005-08-16 | Analog Devices, Inc. | Fiber-attached optical devices with in-plane micromachined mirrors |
| US6975788B2 (en) * | 2002-12-09 | 2005-12-13 | Lucent Technologies, Inc. | Optical switch having combined input/output fiber array |
| CN102135646A (en) * | 2011-02-21 | 2011-07-27 | 华为技术有限公司 | Mechanical optical switch and channel selection method of mechanical optical switch |
Family Cites Families (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3942497B2 (en) * | 2002-06-25 | 2007-07-11 | オリンパス株式会社 | Light switch |
-
2014
- 2014-05-07 CN CN201410191139.9A patent/CN103969751B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4208094A (en) * | 1978-10-02 | 1980-06-17 | Bell Telephone Laboratories, Incorporated | Optical switch |
| CN2570814Y (en) * | 2002-09-29 | 2003-09-03 | 常泽洲 | Mechanical optical switch |
| US6931170B2 (en) * | 2002-10-18 | 2005-08-16 | Analog Devices, Inc. | Fiber-attached optical devices with in-plane micromachined mirrors |
| US6975788B2 (en) * | 2002-12-09 | 2005-12-13 | Lucent Technologies, Inc. | Optical switch having combined input/output fiber array |
| CN102135646A (en) * | 2011-02-21 | 2011-07-27 | 华为技术有限公司 | Mechanical optical switch and channel selection method of mechanical optical switch |
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| CN103969751A (en) | 2014-08-06 |
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