CN101995654A - Optical switchgear - Google Patents
Optical switchgear Download PDFInfo
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- CN101995654A CN101995654A CN2009101629880A CN200910162988A CN101995654A CN 101995654 A CN101995654 A CN 101995654A CN 2009101629880 A CN2009101629880 A CN 2009101629880A CN 200910162988 A CN200910162988 A CN 200910162988A CN 101995654 A CN101995654 A CN 101995654A
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- light
- optical filter
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- rotating disk
- wavelength
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Abstract
The invention discloses an optical switchgear, which comprises three grin lenses, a turntable and optical filters, wherein the three grin lenses are positioned on light paths of incident light, reflected light and transmitted light respectively; A type optical filters and B type optical filters are alternately embedded on the upper surface of the turntable, and only can transmit light waves of two specific wavelengths; and absorption filters are embedded between the A type and B type optical filters, can absorb the light waves of any wavelength and do not transmit and reflect the light. The switchgear structure of the invention overcomes the shortcoming that the conventional optical switchgear structure is complex and cannot realize a light wavelength selection function, and realizes reduction in cost.
Description
Technical field
The invention belongs to the optical communication field, particularly relate to a kind of light switch that in optical-fibre communications, uses, utilize it to realize the light wave switching function of different wave length.
Background technology
Along with development of Communication Technique, particularly the more miscellaneous services that carry out on network of the user that makes of INTERNET networks development exchange, cause quantity of information to increase fast, thereby the network bandwidth is had higher requirement, and the light wave communication has obtained widespread use as a kind of network information load mode quick, mass data.In the light wave communication apparatus, it is a class communication apparatus the most widely that photoswitch is used.In recent years, new trend has appearred in the development of photoswitch, and the one, the scale of photoswitch requires increasing; The 2nd, the wavelength of photoswitch can conveniently be selected; The 3rd, the corresponding speed of requirement photoswitch is brought up to microsecond even nanosecond order.Therefore, new photoswitch design all is to improve from above three aspects or certain aspect, and the present invention selects to go up a kind of improvement technical scheme that realizes to the wavelength of photoswitch, thereby realizes the different wave length light wave is carried out the effect of switch.
Summary of the invention
The objective of the invention is in order to solve existing optical switch construction complexity, can not to realize that the function of optical wavelength selector switch provides a kind of novel photoswitch choice structure.
Realize that above-mentioned purpose technical scheme of the present invention is, a kind of light switch, comprise three GRIN Lens, rotating disk and optical filter, three GRIN Lens lay respectively at incident light, on the light path of reflected light and transmitted light, disk upper surface is alternately inlayed A type optical filter and Type B optical filter, A type optical filter wherein and Type B optical filter are only the light wave of two kinds of specific wavelengths to be had transmittance, inlay the extinction sheet between A type and the Type B optical filter light wave of any wavelength is all absorbed not transmission and reflected light.
Rotating disk in the above-mentioned switch is a round turntable, and the optical filter and the extinction sheet that are embedded on the rotating disk are fan-shaped.
When the present invention works, rotation by rotating disk, when the light wave by the incident lens has the wavelength that can be selected by optical filter, the light signal transmission is passed through, the light wave of other wavelength is reflected, and when rotating to extinction sheet position, all light waves all are absorbed, thereby realize the break function of light path, so just realized the wavelength selection function of photoswitch.
The present invention has realized the selector switch function of specific wavelength light wave by simple light path rotating disk and filter sheet structure, compares with existing light wave selector switch, has simplified the light path arrangement mode greatly, has reduced cost of manufacture.
Description of drawings
Fig. 1 is an optical switch construction synoptic diagram of the present invention;
Optical filter and extinction sheet synoptic diagram that Fig. 2 is on the rotating disk to be inlayed.
Among the figure, 1, GRIN Lens; 2-A, A type optical filter; 2-B, Type B optical filter; 2-C, extinction sheet; 3, rotating disk.
Embodiment
Specifically describe of the present invention below in conjunction with accompanying drawing, as Fig. 1 is optical switch construction synoptic diagram of the present invention, as shown in the figure, structure of the present invention comprises three GRIN Lens 1 that are connected with optical fiber, these three GRIN Lens lay respectively at the light incident direction, reflection direction and transmission direction, reflection or transmission can take place in incident light on the optical filter of inlaying on the rotating disk, alternately inlay A type optical filter 2-A on the rotating disk, Type B optical filter 2-B and extinction sheet 2-C, as concrete a kind of wavelength selection type optical filter, it is the light wave of 1550nm that A type optical filter only sees through wavelength, and it is the light of 1310nm that the Type B optical filter only sees through wavelength.During the work of this switch, dial rotation, the light that comes from the incident light GRIN Lens includes two kinds of wavelength 1310nm and 1550nm, when rotating disk transformation of ownership A type optical filter, the transmittance of wavelength 1550 is passed through, received by the transmission GRIN Lens, and wavelength is the light wave reflection of 1310nm that the GRIN Lens that is reflected receives; Equally, when rotating disk transformation of ownership Type B optical filter, the transmittance of wavelength 1310 is passed through, and received by the transmission GRIN Lens, and wavelength is the light wave reflection of 1550nm that the GRIN Lens that is reflected receives; When rotating disk went to the extinction sheet, the light wave of two kinds of wavelength was absorbed, and reflection and transmission GRIN Lens do not receive light wave, thereby realized light switch function.
Optical filter and extinction sheet synoptic diagram that Fig. 2 is on the rotating disk to be inlayed, A type optical filter among the figure and Type B optical filter and extinction sheet are alternately arranged and are embedded on the rotating disk, whole rotating disk is round, and optical filter and extinction sheet are the fan type, realizes the selector switch function of light wave during dial rotation.
Technique scheme has only embodied the optimal technical scheme of technical solution of the present invention, those skilled in the art to some part wherein some changes that may make all embodied principle of the present invention, belong within protection scope of the present invention.
Claims (3)
1. light switch, comprise three GRIN Lens (1), rotating disk (3) and optical filter (2), it is characterized in that, three GRIN Lens lay respectively at incident light, on the light path of reflected light and transmitted light, disk upper surface is alternately inlayed A type optical filter (2-A) and Type B optical filter (2-B), A type optical filter wherein and Type B optical filter are only the light wave of two kinds of specific wavelengths to be had transmittance, inlay extinction sheet (2-C) between A type and the Type B optical filter light wave of any wavelength is all absorbed not transmission and reflected light.
2. light switch according to claim 1 is characterized in that rotating disk is a round turntable, and the optical filter and the extinction sheet that are embedded on the rotating disk are fan-shaped.
3. light switch according to claim 1 is characterized in that, GRIN Lens connects optical fiber and realizes inputing or outputing of light wave.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101629880A CN101995654A (en) | 2009-08-21 | 2009-08-21 | Optical switchgear |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2009101629880A CN101995654A (en) | 2009-08-21 | 2009-08-21 | Optical switchgear |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN101995654A true CN101995654A (en) | 2011-03-30 |
Family
ID=43786024
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2009101629880A Pending CN101995654A (en) | 2009-08-21 | 2009-08-21 | Optical switchgear |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN101995654A (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966767A (en) * | 2016-10-20 | 2018-04-27 | 发那科株式会社 | Beam splitter |
-
2009
- 2009-08-21 CN CN2009101629880A patent/CN101995654A/en active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107966767A (en) * | 2016-10-20 | 2018-04-27 | 发那科株式会社 | Beam splitter |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C02 | Deemed withdrawal of patent application after publication (patent law 2001) | ||
| WD01 | Invention patent application deemed withdrawn after publication |
Application publication date: 20110330 |