CN203838456U - Sagnac loop all-optical logic device based on electro-optical modulation - Google Patents
Sagnac loop all-optical logic device based on electro-optical modulation Download PDFInfo
- Publication number
- CN203838456U CN203838456U CN201420228563.1U CN201420228563U CN203838456U CN 203838456 U CN203838456 U CN 203838456U CN 201420228563 U CN201420228563 U CN 201420228563U CN 203838456 U CN203838456 U CN 203838456U
- Authority
- CN
- China
- Prior art keywords
- port
- optical
- circulator
- electro
- logic device
- 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.)
- Withdrawn - After Issue
Links
Landscapes
- Optical Modulation, Optical Deflection, Nonlinear Optics, Optical Demodulation, Optical Logic Elements (AREA)
- Optical Communication System (AREA)
Abstract
The utility model discloses a Sagnac loop all-optical logic device based on electro-optical modulation. The Sagnac loop all-optical logic device based on electro-optical modulation comprises a signal source, a band-pass filter, a circulator, an electro-optical coupler, electrodes, a voltage source and a Sagnac interferometer, wherein signal light passes through the circulator and then is coupled and divided into two beams of light which are transmitted in opposite directions in the Sagnac interferometer, the clockwise light sequentially passes through the band-pass filter, the circulator, the electro-optical coupler, the circulator and the band-pass filter, the anticlockwise light sequentially passes through the band-pass filter, the circulator, the electro-optical coupler, the circulator and the band-pass filter, and the two beams of light are coupled again in the Sagnac interferometer and then output through the circulator. According to the Sagnac loop all-optical logic device based on electro-optical modulation, electro-optical effect is generated by means of electro-optical modulation. The Sagnac loop all-optical logic device based on electro-optical modulation has the advantages of being large in number of output logic value combinations, high is response speed, low in break over voltage and the like.
Description
Technical field
The utility model belongs to light signal processing technology field, is specifically related to a kind of ring of the Sagnac based on electrooptical modulation all-optical logic device.
Background technology
Along with the exponential increase of quantity of information, all optical communication must become the selection in future communications field.All optical communication, without Electric signal processing, so can avoid ' electronic bottleneck ', can realize hypervelocity transmission, significantly promotes network transfer speeds.Sagnac ring can ensure the two-beam transmitting the in opposite directions identical path of passing by, thereby has identical phase change, can realize filtering, open the light, and the various functions such as logical operation.Be successfully applied at present in the conversion of wdm system medium wavelength, A/D conversion, navigational system.Electrooptical modulation is the change that causes refractive index under alive effect outside, thereby changes the phase differential of the two-beam transmitting in opposite directions in Sagnac ring, finally causes the change of extinction ratio.In the time that voltage reaches certain value, will cause signal to transfer to transmission end from reflection end, extinction ratio is negative from just becoming, and logical value changes.Sagnac ring all-optical logic device based on electrooptical modulation can be realized logical operation according to the change of additional modulation voltage, also can realize logical operation by the initial phase difference that changes incoming signal light.
Summary of the invention
The utility model, for the deficiencies in the prior art, provides a kind of ring of the Sagnac based on electrooptical modulation all-optical logic device.
The utility model is taked following technical scheme: comprise first signal source, secondary signal source, the first bandpass filter, the second bandpass filter, the first circulator, the second circulator, the 3rd circulator, the 4th circulator, electrical-optical coupler, the first electrode, the second electrode, third electrode, direct voltage source and Sagnac interferometer.The first port of the first circulator is connected with first signal source, and the second port is connected with the first port of Sagnac interferometer, and the 3rd port is as the first output terminal; The first port of the second circulator is connected with secondary signal source, and the second port is connected with the second port of Sagnac interferometer, and the 3rd port is as the second output terminal; In the middle of the ring of Sagnac interferometer, be broken as two ports, one of them port is connected with the first port of the first bandpass filter, and another port is connected with the first port of the second bandpass filter; The first port of the 3rd circulator is connected with the second port of electrical-optical coupler, and the second port is connected with the second port of the first bandpass filter, and the 3rd port is connected with the first port of electrical-optical coupler; The first port of the 4th circulator is connected with the 3rd port of electrical-optical coupler, and the second port is connected with the second port of the second bandpass filter, and the 3rd port is connected with the 4th port of electrical-optical coupler; The second electrode grounding, the first electrode is connected with direct voltage source jointly with third electrode.
Feature of the present utility model is input signal light, utilizes electrooptical effect, changes the phase differential of two-beam, thereby realize the logical transition function of flashlight in the time changing impressed voltage.
The utility model utilizes circulator that the two-beam transmitting in opposite directions in Sagnac ring is transferred to respectively in two arms of electrical-optical coupler, changes refractive index by additional modulation voltage, thereby has changed the phase differential of output light, realizes logic device translation function.
The utility model all-optical logic utensil has the advantages such as logical value combination is many, and regulation voltage is low, fast response time, is applicable to being applied in System of all Optical Communication.
Brief description of the drawings
Fig. 1 is that the utility model is based on electrooptical modulation Sagnac ring all-optical logic device structural representation.
Fig. 2 is that flashlight initial phase difference is 0 o'clock, the logic device output characteristic curve that Output optical power changes with impressed voltage.
Fig. 3 be two-port signal light power while being all 1mw impressed voltage be respectively 3v, when 10v, the logic device output characteristic curve that Sagnac two-port Output optical power changes with flashlight initial phase difference.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, the Sagnac ring all-optical logic device of the present embodiment based on electrooptical modulation comprises signal source 1-1,1-2, bandpass filter 2-1,2-2, circulator 3-1,3-2,3-3,3-4, electrical-optical coupler 4, electrode 5-1,5-2,5-3, voltage source 6, Sagnac interferometer 7.The pumping wave wavelength coverage that signal 1-1,1-2 produce is 1500nm-1600nm, and power is 1mW.The continuously adjustable DC voltage scope that direct voltage source 6 produces is 0v-12v.Bandpass filter 2-1,2-2 BREATHABLE BANDWIDTH scope 1500nm-1600nm.Select the electrical-optical coupler of 99:1, electrooptical coefficient is 1.5 × 10
-10pm/W.The merit proportion by subtraction 0.4-0.5 of Sagnac interferometer.
The first port a1 of circulator 3-1 is connected with signal source 1-1, and the second port a2 is connected with the first port c1 of Sagnac interferometer, and the 3rd port a3 is as output terminal Port A.The first port b1 of circulator 3-2 is connected with signal source 1-2, and the second port b2 is connected with the second port c2 of Sagnac interferometer, and the 3rd port b3 is as output terminal Port B.In the middle of the ring of Sagnac interferometer, be broken as two port c3, c4, c3 is connected with the first port d1 of bandpass filter 2-1, and c4 is connected with the first port e1 of bandpass filter 2-2.The first port h1 of circulator 3-3 is connected with the second port j2 of electrical-optical coupler, and the second port h2 is connected with the second port d2 of bandpass filter 2-1, and the 3rd port h3 is connected with the first port j1 of electrical-optical coupler.The first port i1 of circulator 3-4 is connected with the 3rd port j3 of electrical-optical coupler, and the second port i2 is connected with the second port e2 of bandpass filter 2-2, and the 3rd port i3 is connected with the 4th port j4 of electrical-optical coupler.Electrode 5-2 ground connection, electrode 5-1 is connected with direct voltage source 6 jointly with 5-3.
Regulate the output voltage of direct voltage source, calculate the different output power of Sagnac interferometer two output ports, according to extinction ratio decision logic device logic function.
Fig. 2 has shown: under given flashlight input condition, the output power of two output ports is with the logic device family curve of voltage source change in voltage.Cusp means that the path of output optical signal changes, and magnitude of voltage is now called break over voltage.
Table 1 for flashlight initial phase difference be 0 o'clock, when input voltage is 10.3v, all-optical logic device truth table.A1 in table, b1 and Port A, Port B represents respectively Sagnac interferometer input and output point, logical value " 0 " and " 1 " indicate no signal input.X
ijbe extinction ratio, be used for judging output logic value.
Table 1
The implementation procedure of the utility model all-optical logic device:
1. according to logic device output characteristic curve, find out break over voltage.
2. according to break over voltage, select different input voltages, in conjunction with different input combinations, realize different logic functions simultaneously.
3. according to break over voltage, determine suitable input voltage, under determined input voltage, select suitable input light initial phase difference, in conjunction with different input combinations, realize different logic functions simultaneously.
Above preferred embodiment of the present utility model and principle are had been described in detail; for those of ordinary skill in the art; the thought providing according to the utility model will change in embodiment, and these changes also should be considered as protection domain of the present utility model.
Claims (1)
1. the ring of the Sagnac based on an electrooptical modulation all-optical logic device, comprise first signal source (1-1), secondary signal source (1-2), the first bandpass filter (2-1), the second bandpass filter (2-2), the first circulator (3-1), the second circulator (3-2), the 3rd circulator (3-3), the 4th circulator (3-4), electrical-optical coupler (4), the first electrode (5-1), the second electrode (5-2), third electrode (5-3), direct voltage source (6) and Sagnac interferometer (7), it is characterized in that: first port (a1) of the first circulator (1-1) is connected with first signal source (1-1), the second port (a2) is connected with first port (c1) of Sagnac interferometer (7), the 3rd port (a3) is as the first output terminal (Port A), first port (b1) of the second circulator (3-2) is connected with secondary signal source (1-2), the second port (b2) is connected with second port (c2) of Sagnac interferometer (7), and the 3rd port (b3) is as the second output terminal (Port B), in the middle of the ring of Sagnac interferometer (7), be broken as two ports (c3, c4), one of them port (c3) is connected with first port (d1) of the first bandpass filter (2-1), and another port (c4) is connected with first port (e1) of the second bandpass filter (2-2), first port (h1) of the 3rd circulator (3-3) is connected with second port (j2) of electrical-optical coupler (4), the second port (h2) is connected with second port (d2) of the first bandpass filter (2-1), and the 3rd port (h3) is connected with first port (j1) of electrical-optical coupler (4), first port (i1) of the 4th circulator (3-4) is connected with the 3rd port (j3) of electrical-optical coupler (4), the second port (i2) is connected with second port (e2) of the second bandpass filter (2-2), and the 3rd port (i3) is connected with the 4th port (j4) of electrical-optical coupler (4), the second electrode (5-2) ground connection, the first electrode (5-1) is connected with direct voltage source (6) jointly with third electrode (5-3).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228563.1U CN203838456U (en) | 2014-05-05 | 2014-05-05 | Sagnac loop all-optical logic device based on electro-optical modulation |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420228563.1U CN203838456U (en) | 2014-05-05 | 2014-05-05 | Sagnac loop all-optical logic device based on electro-optical modulation |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203838456U true CN203838456U (en) | 2014-09-17 |
Family
ID=51516277
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420228563.1U Withdrawn - After Issue CN203838456U (en) | 2014-05-05 | 2014-05-05 | Sagnac loop all-optical logic device based on electro-optical modulation |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203838456U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969912A (en) * | 2014-05-05 | 2014-08-06 | 杭州电子科技大学 | Sagnac ring full-optical logic device based on electro-optical modulation |
| CN104391418A (en) * | 2014-11-13 | 2015-03-04 | 杭州电子科技大学 | Sagnac interferometer all-optical logic device based on erbium-doped fiber coupler |
| CN104850886A (en) * | 2015-04-30 | 2015-08-19 | 东莞电子科技大学电子信息工程研究院 | Low-frequency radio-frequency identification tag and signal sending method |
-
2014
- 2014-05-05 CN CN201420228563.1U patent/CN203838456U/en not_active Withdrawn - After Issue
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103969912A (en) * | 2014-05-05 | 2014-08-06 | 杭州电子科技大学 | Sagnac ring full-optical logic device based on electro-optical modulation |
| CN103969912B (en) * | 2014-05-05 | 2016-09-14 | 杭州电子科技大学 | Sagnac ring all-optical logic device based on Electro-optical Modulation |
| CN104391418A (en) * | 2014-11-13 | 2015-03-04 | 杭州电子科技大学 | Sagnac interferometer all-optical logic device based on erbium-doped fiber coupler |
| CN104391418B (en) * | 2014-11-13 | 2017-04-19 | 杭州电子科技大学 | Sagnac interferometer all-optical logic device based on erbium-doped fiber coupler |
| CN104850886A (en) * | 2015-04-30 | 2015-08-19 | 东莞电子科技大学电子信息工程研究院 | Low-frequency radio-frequency identification tag and signal sending method |
| CN104850886B (en) * | 2015-04-30 | 2018-02-16 | 东莞电子科技大学电子信息工程研究院 | A kind of low frequency radio frequency identification label and signaling method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| EP2856668B1 (en) | Systems for differential optical signaling | |
| CN203838456U (en) | Sagnac loop all-optical logic device based on electro-optical modulation | |
| CN103529569B (en) | Based on the all-optical logic device of asymmetric coupler Cross-phase Modulation | |
| CN104133336A (en) | On-chip integrated optical digital-to-analog converter based on silicon-based nanowire waveguide | |
| CN103487889A (en) | Mach-Zehnder optical switch structure based on coupling of double resonant cavities | |
| CN103955147A (en) | Control device of micro-ring optical switch | |
| CN104007512B (en) | A kind of optical polarization beam splitter | |
| CN203982048U (en) | The Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring | |
| CN103969912B (en) | Sagnac ring all-optical logic device based on Electro-optical Modulation | |
| CN103760642A (en) | Five-port optical router based on Mach-Zehnder optical switches | |
| US20140314365A1 (en) | Electro-optic modulator | |
| CN110275365A (en) | A kind of full light four of binary system selects a data selector | |
| CN105676370B (en) | A kind of all-optical packet switching switch based on micro-ring resonant cavity | |
| CN110779440B (en) | Polarization insensitive photosensitive switch based on Mach Zehnder interferometer structure | |
| CN105629625A (en) | Dual microring resonant cavity differential delay based all-optical logic exclusive OR gate | |
| CN104280975A (en) | All-optical XOR gate device based on cascaded semiconductor optical amplifier | |
| CN104102066B (en) | All-optical logic device based on fiber coupler double pumping action optical modulations | |
| CN104166292A (en) | Sagnac interferometer all-optical logic device of loop biased amplifier | |
| CN104393920B (en) | All-optical sampler based on phase-shifted fiber grating fiber loop mirror | |
| CN103969913A (en) | Erbium-doped optical fiber coupler cross phase modulation all-optical logic device | |
| CN104678676A (en) | Reversible optical logic device based on microring resonators | |
| CN104391418A (en) | Sagnac interferometer all-optical logic device based on erbium-doped fiber coupler | |
| CN203838457U (en) | Cross phase modulation type all-optical logic device for Er-doped optical fiber coupler | |
| CN104503185B (en) | A kind of binary optic subtracter based on micro-ring resonator | |
| CN203982049U (en) | A kind of all-optical logic device based on fiber coupler double pumping action optical modulations |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20160914 |
|
| AV01 | Patent right actively abandoned |
Granted publication date: 20140917 Effective date of abandoning: 20160914 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |