CN204269923U - A kind of photoswitch - Google Patents
A kind of photoswitch Download PDFInfo
- Publication number
- CN204269923U CN204269923U CN201420842362.0U CN201420842362U CN204269923U CN 204269923 U CN204269923 U CN 204269923U CN 201420842362 U CN201420842362 U CN 201420842362U CN 204269923 U CN204269923 U CN 204269923U
- Authority
- CN
- China
- Prior art keywords
- array
- photoswitch
- lens
- optical fiber
- head
- 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.)
- Active
Links
Abstract
A kind of photoswitch, comprise the array fibre head, array lens, collimation lens and the MEMS catoptron that arrange according to light path, the optical fiber output light exported from array fibre head forms parallel collimated light array through array lens, then focuses on MEMS catoptron through collimation lens, forms 1XN photoswitch.Adopt the technical solution of the utility model, breach MEMS mirror mirror little, the shortcoming that corner ability is little, the numerical value of N is increased greatly.
Description
Technical field
The utility model relates to optical communication device field, refers in particular to the photoswitch on a kind of upper and lower multiplexing demultiplexing device of reconfigurable light path (ROADM) be applied in dwdm system, cross interconnected (OXC) system of light and sensing network.
Background technology
Photoswitch is the Primary Component in optical-fiber network; and be the exchcange core forming key equipment in wavelength division multiplexed network, the main range of application of photoswitch has: 1, pretection switch function, and 2, network monitoring function; 3, the test of optical device, 4, be applied to OADM and optical cross connect.Wherein network monitoring function is mainly: when needs monitoring network, only in far-end monitoring point, optical fiber need be connected to (as OTDR) on network monitoring instrument through photoswitch, when light path needs monitoring, photoswitch is utilized to carry out cyclic switching to each optical fiber, allow light source test each optical fiber, thus realize the on-line monitoring of network.Photoswitch mainly plays in fiber optic cable monitor project jumps survey effect, and many fibres can be connected by simple 1XN photoswitch.
MEMS is the micro mechanical structure be made up of as Si etc. semiconductor material, and its ultimate principle by the effect of electrostatic, micromirror that can be movable is rotated, thus change the direction of propagation of input light.The advantage of the low-loss of the existing mechanical switch of MEMS, low crosstalk, low polarization sensitivity and High Extinction Ratio, there are again the high switching speed of waveguide switch, small size, are easy to the advantage such as integrated on a large scale, therefore be widely used in backbone network or large-scale switching network based on mems optical switch switching technology.
Fiber array, collimator lens, MEMS catoptron three-element structure is adopted based on mems optical switch basic structure shown in Fig. 1, in the photoswitch of reality, size due to MEMS mirror surface limits (diameter 1mm), corner restriction (5 °), as single-mode fiber NA=0.1, corresponding collimation lens focal distance f, collimating apparatus spot diameter is D=2*NA*f, if hot spot D=0.5mm, the focal length of collimator lens is f=5*D=2.5mm.If MEMS corner is θ=4 degree, then MEMS reflected light arrives farthest fiber distance is f*tan2 θ=2.5*tan8=0.35mm, consider fibre diameter 0.125mm, so for a MEMS, N=2*0.35/0.125=5 in photoswitch 1XN, N value is very little, so number of fibers is restricted in these row of this structured optical fiber.
Utility model content
The utility model solves above-mentioned technical matters, provides a kind of photoswitch.
In order to solve the problems of the technologies described above, the technical solution of the utility model is: a kind of photoswitch, comprise the array fibre head, array lens, collimation lens and the MEMS catoptron that arrange according to light path, the optical fiber output light exported from array fibre head forms parallel collimated light array through array lens, focus on MEMS catoptron through collimation lens again, form 1XN photoswitch.
Further, described array fibre head comprises the optical fiber head of at least one road input and the optical fiber head of two-way output, and the arrangement of optical fiber head adopts one dimensional arrangement or two-dimensional arrangements.
Further, described array lens and array fibre head one_to_one corresponding arrange.
Further, described collimation lens adopts cylindrical mirror or spherical mirror.
Further, described MEMS catoptron adopts one-dimensional rotation or two-dimensional rotary.
Adopt the technical solution of the utility model, breach MEMS mirror mirror little, the shortcoming that corner ability is little, the numerical value of N is increased greatly.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
Fig. 1 is prior art structural representation;
Fig. 2 is the utility model structural representation.
Embodiment
Below in conjunction with the drawings and specific embodiments, the utility model is described further.
A kind of photoswitch shown in Fig. 2, comprise the array fibre head 10 arranged according to light path, array lens 20, collimation lens 30 and MEMS catoptron 40, array fibre head 10 comprises the optical fiber head of at least one road input and the optical fiber head of two-way output, the arrangement of optical fiber head adopts one dimensional arrangement or two-dimensional arrangements, array lens 20 and array fibre head 10 one_to_one corresponding arrange, collimation lens 30 adopts cylindrical mirror or spherical mirror, MEMS catoptron 40 adopts one-dimensional rotation or two-dimensional rotary, the optical fiber output light exported from array fibre head 10 forms parallel collimated light array through array lens 20, focus on MEMS catoptron 40 through collimation lens 30 again, form 1XN photoswitch.
A kind of photoswitch shown in Fig. 2 is compared with Fig. 1, add array lens 20, through the fibre bundle of array lens 20, angle of divergence NA is little a lot, supposes that angle of divergence NA is little M times, then can to reach when there is no array lens 20 that collimation lens 30 focal length is approximate expands M doubly, then MEMS catoptron 40 uses same reflection angle, 1XNXM in one dimension array of photoswitch, expands M doubly than structure in Fig. 1, for the MEMS catoptron 40 of two dimension, fibre bundle improves M2 doubly; If optical fiber collimation is 50 μm by array lens 20, namely expand 5 times, angle of divergence NA is little 5 times, then same MEMS catoptron 40 area photoswitch expands fiber count and improves 25 times.
Although specifically show in conjunction with preferred embodiment and describe the utility model; but those skilled in the art should be understood that; not departing from the spirit and scope of the present utility model that appended claims limits; in the form and details the utility model is made a variety of changes, be protection domain of the present utility model.
Claims (5)
1. a photoswitch, it is characterized in that: comprise the array fibre head, array lens, collimation lens and the MEMS catoptron that arrange according to light path, the optical fiber output light exported from array fibre head forms parallel collimated light array through array lens, focus on MEMS catoptron through collimation lens again, form 1 × N photoswitch.
2. a kind of photoswitch according to claim 1, is characterized in that: described array fibre head comprises the optical fiber head of at least one road input and the optical fiber head of two-way output, and the arrangement of optical fiber head adopts one dimensional arrangement or two-dimensional arrangements.
3. a kind of photoswitch according to claim 1, is characterized in that: described array lens and array fibre head one_to_one corresponding arrange.
4. a kind of photoswitch according to claim 1, is characterized in that: described collimation lens adopts cylindrical mirror or spherical mirror.
5. a kind of photoswitch according to claim 1, is characterized in that: described MEMS catoptron adopts one-dimensional rotation or two-dimensional rotary.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420842362.0U CN204269923U (en) | 2014-12-26 | 2014-12-26 | A kind of photoswitch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420842362.0U CN204269923U (en) | 2014-12-26 | 2014-12-26 | A kind of photoswitch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204269923U true CN204269923U (en) | 2015-04-15 |
Family
ID=52804783
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420842362.0U Active CN204269923U (en) | 2014-12-26 | 2014-12-26 | A kind of photoswitch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204269923U (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873081A (en) * | 2017-04-06 | 2017-06-20 | 中山市美速光电技术有限公司 | A kind of high power mechanical optical switch |
| CN108710176A (en) * | 2018-05-07 | 2018-10-26 | 王念 | A kind of mems optical switch |
| CN110954994A (en) * | 2019-12-18 | 2020-04-03 | 华中科技大学 | Optical switch |
| CN111596412A (en) * | 2020-04-12 | 2020-08-28 | 桂林电子科技大学 | Multi-core optical fiber programmable multifunctional device based on array MEMS reflector |
-
2014
- 2014-12-26 CN CN201420842362.0U patent/CN204269923U/en active Active
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106873081A (en) * | 2017-04-06 | 2017-06-20 | 中山市美速光电技术有限公司 | A kind of high power mechanical optical switch |
| CN108710176A (en) * | 2018-05-07 | 2018-10-26 | 王念 | A kind of mems optical switch |
| CN110954994A (en) * | 2019-12-18 | 2020-04-03 | 华中科技大学 | Optical switch |
| CN111596412A (en) * | 2020-04-12 | 2020-08-28 | 桂林电子科技大学 | Multi-core optical fiber programmable multifunctional device based on array MEMS reflector |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN204269923U (en) | A kind of photoswitch | |
| AU2014235949B2 (en) | Wavelength selective switch having integrated channel monitor | |
| CN202771038U (en) | M*N multichannel MEMS optical switch | |
| JP6093444B2 (en) | Optical signal processor | |
| CN103674117B (en) | Measure entirely method and device with weak optical fiber Bragg grating temperature and strain based on Raman scattering simultaneously | |
| CN203630394U (en) | 1*N multichannel MEMS optical switch structure | |
| JP6847938B2 (en) | Large-scale optical switch using asymmetric 1x2 element | |
| CN103345022A (en) | Asymmetric planar optical waveguide mode multiplexing/demultiplexing device based on few-mode fibers | |
| CN102540324A (en) | Dual-band orthogonal single polarization single mode photonic crystal fiber | |
| Brunet et al. | Design of an optical fiber supporting 16 OAM modes | |
| WO2018039716A1 (en) | An optical signal transmission system, a method for transmitting a plurality of optical signals, and a method for making a photonic device. | |
| CN103439765A (en) | All-optical-fiber type multi-path interferometer | |
| CN102790644A (en) | Optical fiber detection system, optical fiber detection device and method thereof | |
| US10007063B2 (en) | Wavelength division multiplexer array | |
| CN101943766B (en) | Reconfigurable long-period optical fiber grating coupler | |
| CN103197387B (en) | Based on the optical add/drop multiplexer of Preset grating long-period waveguide grating | |
| CN106464355A (en) | Optical switching device, optical cross-node and optical signal switching method | |
| CN107436462B (en) | A kind of energy conversion device for the selectable modes excitation in mode multiplexing | |
| Wu et al. | Large-scale silicon photonic switches | |
| CN201732186U (en) | Single-fiber to four-fiber mechanical compact optical switch structure | |
| JP2014197154A (en) | Optical operation device | |
| CN202975392U (en) | Adjustable optical power splitting device | |
| CN205844578U (en) | A kind of miniaturization reflection-type mechanical optical switch | |
| AU2020100778A4 (en) | A multi-core optical fiber switch based on an MEMS reflector | |
| CN201765379U (en) | Optical switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |