CN202948163U - Wavelength selective switch - Google Patents
Wavelength selective switch Download PDFInfo
- Publication number
- CN202948163U CN202948163U CN 201220651187 CN201220651187U CN202948163U CN 202948163 U CN202948163 U CN 202948163U CN 201220651187 CN201220651187 CN 201220651187 CN 201220651187 U CN201220651187 U CN 201220651187U CN 202948163 U CN202948163 U CN 202948163U
- Authority
- CN
- China
- Prior art keywords
- light
- prism
- micro
- step motor
- wavelength
- 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.)
- Expired - Lifetime
Links
Images
Landscapes
- Mechanical Light Control Or Optical Switches (AREA)
Abstract
The utility model discloses a wavelength selective switch, which comprises a light spot collimation system, a grating dispersion system, a shrink beam dispersion amplification system and at least a light path transformation system which are orderly arranged, wherein the light path transformation system comprises a parallel plate, a rhombic prism and a right-angle reflecting prism which are orderly arranged, the parallel plate is driven by a micro step motor, and the rhombic prism is driven by the micro step motor. Input light signals of the wavelength selective switch achieves single wavelength incident beams after wavelength is sorted through the grating dispersion system, the wavelength selective switch uses the micro step motor to replace a micro-electromechanical system (MEMS) structure, uses the micro step motor to drive the parallel plate to move, enables the incident beams which are injected into the parallel plate and the parallel plate to generate different incident angles, enables light beams to translate, then enables the light beams to translate again by utilizing the micro step motor to drive the rhombic prism, enables the light beams to return in reverse direction through the direct-angle reflecting prism at last, and sends the light beams to output light fibers to return. The cost of the micro step motor is much lower than the MEMS system in the prior art, and the reliability of micro step motor is also higher than the MEMS system.
Description
Technical field
The utility model relates to optical-fibre communications field, relates in particular to a kind of wavelength-selective switches.
Background technology
In past 20 years, optical fiber has been converted into telecommunication market.Originally, network design comprises that communication link respectively holds the transceiver electronics equipment of relative low speed, and light signal is converted to electric signal after switching, and switches through electronics, then is converted to light signal.The bandwidth of electronics switching device is limited to approximately 10GHZ.On the other hand, in electromagnetic spectrum 1550n district, the bandwidth range of single-mode fiber reaches terahertz.Improve along with bandwidth requirement being index, the network architect manages to open up effective bandwidth in 1550nm district, thereby optically transparent fork-join and switch have been proposed requirement.
Worked out recently some WSS(wavelength-selective switches) structure, its mainly by diffraction grating and adopt the MEMS(MEMS (micro electro mechanical system)) microlens array (MEMS mirror array) of technique forms, in prior art, the basic optical schematic diagram of common WSS as shown in Figure 1,201 is input optical fibre, 202-1 ... 202N is output optical fibre, and 203 is catoptron, and 204 is diffraction optical fiber, 205 is lens, and 206 is the single shaft catoptron.The wavelength-division multiplex signals of input optical fibre port is realized wavelength separated through grating, and focuses on lens focal plane.Single shaft catoptron group is placed in the focal plane, and the corresponding wavelength of each lens by adjusting mirror angle, to specific output optical fibre, is realized the wavelength selection with the corresponding wavelength signal reflex.Although WSS wavelength-selective switches of the prior art can be realized wavelength and select, but MEMS and liquid crystal array that its custom adopts are made, its cost of manufacture is very high, is unfavorable for promoting this technology and enterprise and reduces production costs, and a kind of structure of WSS is cheaply developed in market in urgent need.
Summary of the invention
In order to overcome the deficiencies in the prior art, it is simple that the purpose of this utility model is to provide a kind of making, wavelength-selective switches with low cost.
For achieving the above object, the technical solution of the utility model is: a kind of wavelength-selective switches comprises sequentially the hot spot colimated light system that arranges, grating dispersion system, contracting bundle dispersion amplification system and at least one light chopper system, and described light chopper system comprises the parallel flat that the micro-stepping motors that sequentially arranges drives, rhombic prism and the right-angle reflecting prism that micro-stepping motors drives.
Described light chopper system also comprises the break-in prism that changes direction of beam propagation, and this break-in prism is arranged between described dispersion amplification system and parallel flat.Utilize the break-in prism to change the direction of propagation of light beam, can make the setting that can more reasonably distribute of the light chopper system of this wavelength-selective switches, make that this wavelength-selective switches is compacter, volume is less.
The rhombic prism that is driven by stepper motor of described light chopper system is two.
Adopt above structure, the input optical signal of this wavelength-selective switches is after grating dispersion system sorting wavelength, realize the incident beam of single wavelength, it utilizes micro-stepping motors to substitute the MEMS structure, drive the parallel flat motion with micro-stepping motors, make the incident light of incident parallel flat produce different incident angles with parallel flat, make light beam generation translation, the recycling micro-stepping motors drives rhombic prism makes light beam that translation occur again, make reverse returning after light beam translation with right-angle reflecting prism at last, be sent to output optical fibre and return.The cost of described micro-stepping motors is well below MEMS of the prior art system, and its reliability is also high than MEMS system.
Description of drawings
Below in conjunction with the drawings and specific embodiments, the utility model is described in further detail:
Fig. 1 is the schematic diagram of the basic optical principle of WSS common in prior art;
Fig. 2 be a kind of embodiment 1*9 wavelength-selective switches of the present utility model overlook the optical principle schematic diagram;
Fig. 3 is that the incident light of the light chopper system in Fig. 2 is vertical with parallel flat and without the side-looking optical schematic diagram of two rhombic prisms;
Fig. 4 is that the incident light of the light chopper system in Fig. 2 is vertical with parallel flat and through the side-looking optical schematic diagram of one of them rhombic prism;
Fig. 5 is that the incident light of the light chopper system in Fig. 2 is vertical with parallel flat and through the side-looking optical schematic diagram of another rhombic prism;
Fig. 6 is that the incident light of the light chopper system in Fig. 2 becomes an angle that makes progress and without the side-looking optical schematic diagram of two rhombic prisms with parallel flat;
Fig. 7 is that the incident light of the light chopper system in Fig. 2 becomes an angle that makes progress and through the side-looking optical schematic diagram of one of them rhombic prism with parallel flat;
Fig. 8 is that the incident light of the light chopper system in Fig. 2 becomes an angle that makes progress and through the side-looking optical schematic diagram of another rhombic prism with parallel flat;
Fig. 9 is that the incident light of the light chopper system in Fig. 2 becomes a downward angle and without the side-looking optical schematic diagram of two rhombic prisms with parallel flat;
Figure 10 is that the incident light of the light chopper system in Fig. 2 becomes a downward angle and through the side-looking optical schematic diagram of one of them rhombic prism with parallel flat;
Figure 11 is that the incident light of the light chopper system in Fig. 2 becomes a downward angle and through the side-looking optical schematic diagram of another rhombic prism with parallel flat.
Embodiment
As shown in one of Fig. 2-11, the utility model comprises sequentially the hot spot colimated light system 1 that arranges, grating dispersion system 2, contracting bundle dispersion amplification system 3 and at least one light chopper system 4, and described light chopper system 4 comprises the parallel flat 42 that the micro-stepping motors 41 that sequentially arranges drives, rhombic prism 44 and the right-angle reflecting prism 45 that micro-stepping motors 43 drives.
Described light chopper system 4 also comprises the break-in prism 46 that changes direction of beam propagation, and this break-in prism 46 is arranged between described dispersion amplification system 2 and parallel flat 42.
The rhombic prism 44 that is driven by stepper motor 43 of described light chopper system 4 is two.
Embodiment 1, as shown in Fig. 2 to 11, take the wavelength-selective switches of 3*3 as example, as Fig. 3, regulate micro-stepping motors 41, making light chopper is that 4 incident light is vertical with parallel flat 42, regulates simultaneously micro-stepping motors 43 and makes incident light without rhombic prism 44, its incident light is returned by translation after running into right-angle reflecting prism 45.
As Fig. 4, regulate micro-stepping motors 41, making light chopper is that 4 incident light is vertical with parallel flat 42, regulating simultaneously micro-stepping motors 43 makes incident light through one of them rhombic prism 44, its incident light by one of them rhombic prism 44 translation after, after running into right-angle reflecting prism 45, returned by translation.
As Fig. 5, regulate micro-stepping motors 41, making light chopper is that 4 incident light is vertical with parallel flat 42, regulating simultaneously micro-stepping motors 43 makes incident light through another rhombic prism 44, its incident light by another rhombic prism 44 translations after, after running into right-angle reflecting prism 45, returned by translation.
As Fig. 6, regulate micro-stepping motors 41, making light chopper is 42 one-tenth one angles that make progress of incident light and parallel flat of 4, regulates simultaneously micro-stepping motors 43 and makes incident light without rhombic prism 44, its incident light is returned by translation after running into right-angle reflecting prism 45.
As Fig. 7, regulate micro-stepping motors 41, making light chopper is 42 one-tenth one angles that make progress of incident light and parallel flat of 4, regulating simultaneously micro-stepping motors 43 makes incident light through one of them rhombic prism 44, its incident light by one of them rhombic prism 44 translation after, after running into right-angle reflecting prism 45, returned by translation.
As Fig. 8, regulate micro-stepping motors 41, making light chopper is 42 one-tenth one angles that make progress of incident light and parallel flat of 4, regulating simultaneously micro-stepping motors 43 makes incident light through another rhombic prism 44, its incident light by another rhombic prism 44 translations after, after running into right-angle reflecting prism 45, returned by translation.
As Fig. 9, regulate micro-stepping motors 41, to make light chopper be 4 incident light and the downward angle of 42 one-tenth of parallel flats one, regulates simultaneously micro-stepping motors 43 and make incident light without rhombic prism 44, its incident light is returned by translation after running into right-angle reflecting prism 45.
As Figure 10, regulate micro-stepping motors 41, to make light chopper be 4 incident light and the downward angle of 42 one-tenth of parallel flats one, regulating simultaneously micro-stepping motors 43 makes incident light through one of them rhombic prism 44, its incident light by one of them rhombic prism 44 translation after, after running into right-angle reflecting prism 45, returned by translation.
As Figure 11, regulate micro-stepping motors 41, to make light chopper be 4 incident light and the downward angle of 42 one-tenth of parallel flats one, regulating simultaneously micro-stepping motors 43 makes incident light through another rhombic prism 44, its incident light by another rhombic prism 44 translations after, after running into right-angle reflecting prism 45, returned by translation.
Claims (3)
1. wavelength-selective switches, comprise sequentially the hot spot colimated light system that arranges, grating dispersion system, contracting bundle dispersion amplification system and at least one light chopper system, it is characterized in that: described light chopper system comprises the parallel flat that the micro-stepping motors that sequentially arranges drives, rhombic prism and the right-angle reflecting prism that micro-stepping motors drives.
2. wavelength-selective switches according to claim 1 is characterized in that: described light chopper system also comprises the break-in prism that changes direction of beam propagation, and this break-in prism is arranged between described dispersion amplification system and parallel flat.
3. wavelength-selective switches according to claim 1 is characterized in that: the rhombic prism that is driven by stepper motor of described light chopper system is two.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651187 CN202948163U (en) | 2012-11-30 | 2012-11-30 | Wavelength selective switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220651187 CN202948163U (en) | 2012-11-30 | 2012-11-30 | Wavelength selective switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202948163U true CN202948163U (en) | 2013-05-22 |
Family
ID=48423859
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220651187 Expired - Lifetime CN202948163U (en) | 2012-11-30 | 2012-11-30 | Wavelength selective switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202948163U (en) |
-
2012
- 2012-11-30 CN CN 201220651187 patent/CN202948163U/en not_active Expired - Lifetime
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN103281153B (en) | A kind of Reconfigurable Optical Add/drop Multiplexer of the M × N port based on liquid crystal on silicon | |
| CN205280985U (en) | Parallel emission of light subassembly of multichannel wavelength | |
| CN101840029B (en) | Integrated reconfigurable optical add-drop multiplexer | |
| CN201387495Y (en) | Multi-wavelength selection switch | |
| CN103748511A (en) | Optical switch | |
| CN202713311U (en) | Novel wavelength division multiplexing and de-multiplexing optical assembly applied to high-speed parallel long-distance transmission | |
| CN104597572A (en) | LCOS (Liquid Crystal on Silicon) based wavelength selecting switch | |
| CN103558667B (en) | A kind of multicast Switched Optical switch based on free space transmission | |
| Tsai et al. | MEMS optical switches and interconnects | |
| CN203630394U (en) | 1*N multichannel MEMS optical switch structure | |
| JPWO2015008489A1 (en) | Optical signal processing device | |
| CN101726870A (en) | Method and device for realizing OCDMA (Optical Code Division Multiple Access) encoding and decoding by utilizing electro-optical crystal | |
| CN103364879A (en) | A flat-top optical filter with adjustable bandwidth | |
| CN203311035U (en) | M*N port reconfigurable optical add drop multiplexer based on liquid crystal on silicon | |
| CN103091783A (en) | Tunable array waveguide grating based on liquid crystal waveguides | |
| CN105474656B (en) | Optical cross connection device | |
| CN104345394A (en) | Optical switch and optical switch array | |
| CN202177723U (en) | Wavelength selector switch structure | |
| CN201876568U (en) | Array collimator | |
| CN202948163U (en) | Wavelength selective switch | |
| CN104181640A (en) | Optical switching module based on liquid crystal variable-focus lens | |
| CN201122374Y (en) | Wavelength division multiplexing optical fiber communication experiment demonstration instrument | |
| CN102360102A (en) | 1 X N optical switch | |
| CN208156239U (en) | A kind of optical channel selector | |
| CN203324574U (en) | Optical switch |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130522 |