CN103823301B - A kind of N × M photoswitch - Google Patents
A kind of N × M photoswitch Download PDFInfo
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- CN103823301B CN103823301B CN201210462093.0A CN201210462093A CN103823301B CN 103823301 B CN103823301 B CN 103823301B CN 201210462093 A CN201210462093 A CN 201210462093A CN 103823301 B CN103823301 B CN 103823301B
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Abstract
The present invention relates to optical communication field, disclose a kind of N × M photoswitch, comprise input-output unit, light path deviation unit and 2N+2M driver, input-output unit comprises N input collimater and M output collimator; Light path deviation unit comprises N+M group horizontal optical path deflection element and N+M group vertical optical path deflection element, respectively organizes level or vertical optical path deflection element and is connected with a driver respectively; Respectively corresponding one group of horizontal optical path deflection element and one group of vertical optical path deflection element after each input collimater, also distinguish corresponding one group of vertical optical path deflection element and one group of horizontal optical path deflection element before each output collimator. This structure is utilized the refraction angle difference of different angles angle of wedge prism to light, realizes jumbo photoswitch, and adopts stepper motor to drive the switching of different angles angle of wedge prism, and reliability is high, workable; And the optical element in light path is few, so the light insertion loss of this structure is little.
Description
Technical field
The present invention relates to optical communication field, relate in particular to a kind of N × M photoswitch.
Background technology
Photoswitch is that one can change beam Propagation path, has again the very optical module of high stability and precision, and its effect is that the optical signal in optical transmission line or integrated optical circuit is transformed or logical operation mutually. In optical network system, can carry out break-make and switching to optical signal. Photoswitch divides at light/inserts in multiplexing (OADM), Time Division Multiplexing, wavelength-division multiplex (WDM) and has a wide range of applications, and is the Primary Component of realizing all-optical network (AllOpticalnetwork, AON). Having wide market prospects, is one of the most potential optical passive component.
From present case, the mechanical optical switch array of N × M is by 1 × 2 mostly, and 2 × 2 open the light assembles. The market demand 100 × 100 tunnels now,, if still use aforesaid way, although implementation is simpler, there are many deficiencies: insertion loss is large in even more jumbo photoswitch, and long-time stability are poor, and system architecture is too complicated.
Summary of the invention
For the problems referred to above, the present invention proposes a kind of N × M photoswitch, and Insertion Loss is little, reliability is high, workable.
For achieving the above object, the technical scheme that the present invention proposes is: a kind of N × M photoswitch, comprise input-output unit and light path deviation unit, described input-output unit comprises N input collimater and M output collimator, it is characterized in that: also comprise 2N+2M driver, described light path deviation unit comprises N+M group horizontal optical path deflection element and N+M group vertical optical path deflection element, respectively organizes level or vertical optical path deflection element and is connected with a driver respectively, respectively corresponding one group of horizontal optical path deflection element and one group of vertical optical path deflection element after each input collimater, also distinguish corresponding one group of vertical optical path deflection element and one group of horizontal optical path deflection element before each output collimator, input light by wherein one input collimater input, enter horizontal optical path deflection element corresponding to this input collimater and vertical optical path deflection element, driver drives respectively horizontal optical path deflection element and vertical optical path deflection element to rotate, make incident light carry out deviation with vertical direction in the horizontal direction, arrive vertical optical path deflection element and horizontal optical path deflection element before corresponding output collimator, the two corresponding driver drives respectively this group vertical optical path deflection element and horizontal optical path deflection element to rotate, make incident light again carry out deviation with horizontal direction in the vertical direction, finally be coupled into corresponding output collimator.
Further, described horizontal optical path deflection element is one group of horizontal deviation angle of wedge prism group, is distributed on a disk, and described driver drives disk rotates; Described vertical optical path deflection element is one group of vertical segregation angle of wedge prism group, is distributed on a disk, and described driver drives disk rotates; The angle difference of each angle of wedge prism of described horizontal deviation angle of wedge prism group; The angle difference of each angle of wedge prism of described vertical segregation angle of wedge prism group.
Further, also comprise control circuit, described driver is stepper motor, described control circuit control step machine operation.
Further, also comprise N+M pedestal and a fixed mount, vertical optical path deflection element described in horizontal optical path deflection element and one group described in fixing respectively one group on each pedestal, described horizontal optical path deflection element and driver corresponding to vertical optical path deflection element are fixed on below pedestal; Described input collimater and output collimator are located at respectively fixed mount two ends, and described horizontal optical path deflection element and vertical optical path deflection element are individually fixed in fixed mount two ends by pedestal, corresponding with each input collimater and output collimator.
Beneficial effect of the present invention is: utilize the refraction angle difference of different angles angle of wedge prism to light, realize jumbo photoswitch, and adopt stepper motor to drive the switching of different angles angle of wedge prism, reliability is high, workable; And the optical element in light path is few, so the light insertion loss of this structure is little.
Brief description of the drawings
Fig. 1 is the present invention's 4 × 4 photoswitch example structure schematic diagrames;
Fig. 2 is 4 × 4 photoswitch top views in Fig. 1;
Fig. 3 is the light path schematic diagram of one group of corresponding light path deviation unit in N × M photoswitch;
Fig. 4 is one group of input and output switching construction and light path schematic diagram in N × M photoswitch.
Reference numeral: 1, input collimater; 2, output collimator; 3, light path deviation unit; 31, horizontal deviation angle of wedge prism group; 32, vertical segregation angle of wedge prism group; 33, disk; 4, stepper motor; 5, pedestal; 6, fixed mount.
Detailed description of the invention
Below in conjunction with the drawings and specific embodiments, the present invention will be further described.
N × M photoswitch of the present invention, for each input collimater 1 at input adopts two drivers to drive respectively two disks 33 to rotate below, two groups of light path deflection elements are set on two disks 33, make respectively to input light in level and the certain angle of vertical direction deviation, light beam is incided on the light path deviation unit of corresponding exit end, the output collimator 2 of exit end light path deviation unit above also adopts two groups of corresponding light path deflection elements, light beam by the incident of input deviation is carried out to deviation through it at level and vertical direction again and be finally coupled into output collimator, realize the switching of light path. concrete, this N × M photoswitch comprises input-output unit, light path deviation unit 3 and driver element, wherein, input-output unit comprises N input collimater 1 and M output collimator 2, driver element comprises 2N+2M driver, light path deviation unit 3 comprises N+M group horizontal optical path deflection element and N+M group vertical optical path deflection element, respectively organizes level or vertical optical path deflection element and is connected with a driver respectively, respectively corresponding one group of horizontal optical path deflection element and one group of vertical optical path deflection element after each input collimater, also distinguish corresponding one group of vertical optical path deflection element and one group of horizontal optical path deflection element before each output collimator, input light by wherein one input collimater 1 input, enter horizontal optical path deflection element and the vertical optical path deflection element of this input collimater 1 correspondence, driver drives respectively horizontal optical path deflection element and vertical optical path deflection element to rotate, make incident light carry out deviation with vertical direction in the horizontal direction, arrive corresponding output collimator 2 vertical optical path deflection element and horizontal optical path deflection element above, the two corresponding driver drives respectively this group vertical optical path deflection element and horizontal optical path deflection element to rotate, make incident light again carry out deviation with horizontal direction in the vertical direction, finally be coupled into corresponding output collimator. rotate by driver drives horizontal optical path deflection element and vertical optical path deflection element, make incident light in the horizontal and vertical directions deviation to required angle, can realize the switching of incident light between input collimater and any output collimator.
Be specific embodiment 4 × 4 photoswitches as Figure 1-4, wherein, what driver adopted is stepper motor 4, as shown in Figures 3 and 4, horizontal optical path deflection element is one group of horizontal deviation angle of wedge prism group 31, is distributed on a disk 33, and stepper motor 4 driver plates 33 rotate, vertical optical path deflection element is one group of vertical segregation angle of wedge prism group 32, is distributed on a disk 33, and stepper motor 4 driver plates 33 rotate, and the angle difference of each angle of wedge prism of horizontal deviation angle of wedge prism group 31, the angle of each angle of wedge prism of vertical segregation angle of wedge prism group 32 is also different, the logical light face of each angle of wedge prism all plates anti-reflection film, to reduce surface reflection loss, thus the insertion loss of reduction photoswitch. stepper motor 4 is by a control circuit control, control step motor 4 drives corresponding horizontal deviation prism group 31 and vertical segregation prism group 32 to rotate as required, select the angle of wedge prism of required angle, make to carry out in the horizontal and vertical directions deviation by the light beam of input collimater 1 incident and incide corresponding output. also drive the two rotation in the horizontal deviation angle of wedge prism group 31 of output and the stepper motor 4 of vertical segregation angle of wedge prism group 32 correspondences, select respective angles angle of wedge prism, make again to carry out deviation with horizontal direction in the vertical direction by the light beam of incident end deviation incident, be finally coupled into corresponding output collimator 2. pass through operation control circuit, make control circuit send working signal to corresponding stepper motor 4, the horizontal deviation prism group 31 of driving or vertical segregation prism group 32 rotate a certain angle, so that incident light deviation is to required angle, and incide selected output channel, again through horizontal deviation prism group 31 and the corresponding deviation effect of vertical segregation prism group 32 of output, make light beam be coupled into efficiently the output collimator 2 of respective channel, by the cooperation between the angle of wedge prism of input and the angle of wedge prism of output, realize the switching transmission of incident light between the N × M of spatial distribution optical channel by the refraction of light.
As illustrated in fig. 1 and 2, wherein, respectively input collimater 1 and output collimator 2 and be located at respectively fixed mount 6 two ends; Corresponding to each input collimater 1 and output collimator 2, one pedestal 5 is set respectively, above-mentioned horizontal deviation prism group 31 and vertical segregation prism group 32 are installed on each pedestal 5 simultaneously, corresponding with each input collimater 1 or output collimator 2 respectively, its corresponding stepper motor 4 is fixed on below pedestal 5, and the rotating shaft of stepper motor 4 connects with corresponding horizontal deviation prism group 31 or the disk 33 of vertical segregation prism group 32 through pedestal 5.
Input port of the present invention and output port adopt array distribution pattern, have ensured that multi-channel port can work simultaneously and be independent of each other, and can make for jumbo photoswitch. The present invention adopts the structure of discrete, can increase easily according to actual needs input port and output port.
Although specifically show and introduced the present invention in conjunction with preferred embodiment; but those skilled in the art should be understood that; not departing from the spirit and scope of the present invention that appended claims limits; the various variations of in the form and details the present invention being made, are protection scope of the present invention.
Claims (3)
1. N × M photoswitch, comprises input-output unit and light path deviation unit, and described input-output unit comprises N input collimater and M output collimator, it is characterized in that: also comprise 2N+2M driver, described light path deviation unit comprises N+M group horizontal optical path deflection element and N+M group vertical optical path deflection element, respectively organizes level or vertical optical path deflection element and is connected with a driver respectively, respectively corresponding one group of horizontal optical path deflection element and one group of vertical optical path deflection element after each input collimater, also distinguish corresponding one group of vertical optical path deflection element and one group of horizontal optical path deflection element before each output collimator, input light by wherein one input collimater input, enter horizontal optical path deflection element corresponding to this input collimater and vertical optical path deflection element, driver drives respectively horizontal optical path deflection element and vertical optical path deflection element to rotate, make incident light carry out deviation with vertical direction in the horizontal direction, arrive vertical optical path deflection element and horizontal optical path deflection element before corresponding output collimator, the two corresponding driver drives respectively this group vertical optical path deflection element and horizontal optical path deflection element to rotate, make incident light again carry out deviation with horizontal direction in the vertical direction, finally be coupled into corresponding output collimator, described horizontal optical path deflection element is one group of horizontal deviation angle of wedge prism group, is distributed on a disk, and described driver drives disk rotates, described vertical optical path deflection element is one group of vertical segregation angle of wedge prism group, is distributed on a disk, and described driver drives disk rotates, the angle difference of each angle of wedge prism of described horizontal deviation angle of wedge prism group, the angle difference of each angle of wedge prism of described vertical segregation angle of wedge prism group.
2. a kind of N × M photoswitch as claimed in claim 1, is characterized in that: also comprise control circuit, described driver is stepper motor described control circuit control step machine operation.
3. a kind of N × M photoswitch as claimed in claim 1, it is characterized in that: also comprise N+M pedestal and a fixed mount, vertical optical path deflection element described in horizontal optical path deflection element and one group described in fixing respectively one group on each pedestal, described horizontal optical path deflection element and driver corresponding to vertical optical path deflection element are fixed on below pedestal; Described input collimater and output collimator are located at respectively fixed mount two ends, and described horizontal optical path deflection element and vertical optical path deflection element are individually fixed in fixed mount two ends by pedestal, corresponding with each input collimater and output collimator.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201210462093.0A CN103823301B (en) | 2012-11-16 | 2012-11-16 | A kind of N × M photoswitch |
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| CN201210462093.0A CN103823301B (en) | 2012-11-16 | 2012-11-16 | A kind of N × M photoswitch |
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| CN103823301A CN103823301A (en) | 2014-05-28 |
| CN103823301B true CN103823301B (en) | 2016-05-11 |
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| CN201210462093.0A Active CN103823301B (en) | 2012-11-16 | 2012-11-16 | A kind of N × M photoswitch |
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Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110412811A (en) * | 2018-04-27 | 2019-11-05 | 福州高意通讯有限公司 | A kind of cross interconnected photoswitch of OXC with NXM port number |
| CN110868651B (en) * | 2019-12-23 | 2024-04-05 | 中国电子科技集团公司第三十四研究所 | All-optical switching device |
Citations (5)
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| CN1306709A (en) * | 1998-04-21 | 2001-08-01 | 乔拉姆技术公司 | NXM digitally programmable optical routing switch |
| CN1420375A (en) * | 2001-11-15 | 2003-05-28 | 鸿富锦精密工业（深圳）有限公司 | Multi-light path photoswitch |
| CN1549607A (en) * | 2003-05-22 | 2004-11-24 | 上海市激光技术研究所 | MXN light matrix multi-channel exchanging method |
| CA2601355A1 (en) * | 2005-01-24 | 2006-07-27 | Matsushita Electric Works, Ltd. | Optical switch |
| CN201732186U (en) * | 2010-07-30 | 2011-02-02 | 上海中科光纤通讯器件有限公司 | Single-fiber to four-fiber mechanical compact optical switch structure |
Family Cites Families (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US6166838A (en) * | 1997-03-24 | 2000-12-26 | Chorum Technologies, Inc. | Optical add/drop wavelength switch |
| WO2011086400A1 (en) * | 2010-01-12 | 2011-07-21 | Telefonaktiebolaget L M Ericsson (Publ) | Optical switch for passive optical network (pon) supervision |
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2012
- 2012-11-16 CN CN201210462093.0A patent/CN103823301B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1306709A (en) * | 1998-04-21 | 2001-08-01 | 乔拉姆技术公司 | NXM digitally programmable optical routing switch |
| CN1420375A (en) * | 2001-11-15 | 2003-05-28 | 鸿富锦精密工业（深圳）有限公司 | Multi-light path photoswitch |
| CN1549607A (en) * | 2003-05-22 | 2004-11-24 | 上海市激光技术研究所 | MXN light matrix multi-channel exchanging method |
| CA2601355A1 (en) * | 2005-01-24 | 2006-07-27 | Matsushita Electric Works, Ltd. | Optical switch |
| CN201732186U (en) * | 2010-07-30 | 2011-02-02 | 上海中科光纤通讯器件有限公司 | Single-fiber to four-fiber mechanical compact optical switch structure |
Non-Patent Citations (2)
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| 1×4机械式开关的理论分析与研制;赵清;《中国优秀硕士学位论文全文数据库 信息科技辑》;20050615;I135-79 * |
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