CN203982048U - The Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring - Google Patents
The Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring Download PDFInfo
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- CN203982048U CN203982048U CN201420350518.3U CN201420350518U CN203982048U CN 203982048 U CN203982048 U CN 203982048U CN 201420350518 U CN201420350518 U CN 201420350518U CN 203982048 U CN203982048 U CN 203982048U
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- 230000003287 optical effect Effects 0.000 claims abstract description 29
- 239000004065 semiconductor Substances 0.000 claims abstract description 23
- 239000013307 optical fiber Substances 0.000 claims abstract description 16
- 230000008901 benefit Effects 0.000 abstract description 4
- 230000004044 response Effects 0.000 abstract description 4
- 230000005374 Kerr effect Effects 0.000 abstract description 2
- 230000008878 coupling Effects 0.000 description 11
- 238000010168 coupling process Methods 0.000 description 11
- 238000005859 coupling reaction Methods 0.000 description 11
- 230000007246 mechanism Effects 0.000 description 11
- 230000008859 change Effects 0.000 description 3
- 230000008033 biological extinction Effects 0.000 description 2
- 230000005540 biological transmission Effects 0.000 description 2
- 238000005516 engineering process Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000006698 induction Effects 0.000 description 1
- 230000010363 phase shift Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- 238000005086 pumping Methods 0.000 description 1
- 230000008929 regeneration Effects 0.000 description 1
- 238000011069 regeneration method Methods 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
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Abstract
本实用新型公开了环中偏置光放大器的Sagnac干涉仪全光逻辑器，包括信号源，环形器，带通滤波器，耦合器,半导体光放大器，非线性光纤。信号光经过环形器，被耦合器分为相向传输的两束光；顺时针光依次通过带通滤波器、半导体光放大器、带通滤波器，然后又回到耦合器；逆时针光依次通过带通滤波器、半导体光放大器、带通滤波器，然后回到耦合器；两束光同时再次到达耦合器，经过耦合器后分成两束光从环形器输出。本实用新型全光逻辑器利用克尔效应，产生自相位和交叉相位调制，有输出逻辑值组合多，响应速度快，开光增益小等优点。
The utility model discloses a Sagnac interferometer all-optical logic device of a bias optical amplifier in a ring, which comprises a signal source, a circulator, a band-pass filter, a coupler, a semiconductor optical amplifier and a nonlinear optical fiber. The signal light passes through the circulator and is divided into two beams of light transmitted in opposite directions by the coupler; the clockwise light passes through the band-pass filter, semiconductor optical amplifier, band-pass filter, and then returns to the coupler; the counterclockwise light passes through the band-pass filter in turn. Pass filter, semiconductor optical amplifier, band-pass filter, and then return to the coupler; the two beams of light reach the coupler again at the same time, and after passing through the coupler, they are divided into two beams of light and output from the circulator. The all-optical logic device of the utility model utilizes the Kerr effect to generate self-phase and cross-phase modulation, and has the advantages of many combinations of output logic values, fast response speed, small switching gain and the like.
Description
Technical field
The utility model belongs to light signal processing technology field, is specifically related to the Sagnac interferometer all-optical logic device of bias lighting amplifier in a kind of ring.
Background technology
All-optical logic device is that full light signal processing comprises the needed Primary Components of process such as judgement, regeneration, calculating, is also the basis of realizing photonic computer, has therefore caused widely and has paid close attention to.All-optical logic device is a kind of Multiinputoutput port devices, and its essence is to realize light signal from any input end to the exchange any output terminal, thereby completes certain logic function.Semiconductor optical amplifier because of its volume little, the advantage such as operating wavelength range is wide, and the response time is short, becomes the first-selection of research light logic operated device.Sagnac interferometer can ensure that light signal, through common light-path, therefore has good heterogeneite and antijamming capability, has a wide range of applications.In Sagnac ring, the phase differential of the two-beam of transmission determines signal is from which port output in opposite directions.In ring, the Sagnac interferometer all-optical logic device of bias lighting amplifier has been realized multiple logical operation in theory by the gain of resonance-amplifier or the phase differential of flashlight.
Summary of the invention
The advantages such as for the shortcoming of other all-optical logic device, the utility model provides the Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring, has the gain of opening the light little, and logic function is many, fast response time, are applicable to being applied in all-optical network.
The utility model is taked following technical scheme:
The utility model comprises signal source (1-1,1-2), circulator (2-1,2-2), bandpass filter (3-1,3-2), coupling mechanism (4), semiconductor optical amplifier (5), nonlinear optical fiber (6-1,6-2,6-3,6-4).First port (a1) of circulator (2-1) is connected with signal source (1-1), the second port (a2) is connected with first port (c1) of coupling mechanism (4), and the 3rd port (a3) is as output terminals A.First port (b1) of circulator (2-2) is connected with signal source (1-2), the second port (b2) is connected with second port (c2) of coupling mechanism (4), and the 3rd port (b3) is as output terminal B.The 3rd port (c3) of coupling mechanism (4) is connected with first port (d1) of bandpass filter (3-1) with nonlinear optical fiber (6-3), the 4th port (c4) of coupling mechanism (4) is connected with first port (e1) of bandpass filter (3-2) with nonlinear optical fiber (6-4).First port (f1) of semiconductor optical amplifier (5) is connected with second port (d2) of bandpass filter (3-1) with nonlinear optical fiber (6-2), second port (f2) of semiconductor optical amplifier (5) is connected with second port (e2) of bandpass filter (3-2) with nonlinear optical fiber (6-1).
Feature of the present utility model is input signal light, be placed in Sagnac ring asymmetric semiconductor optical amplifier, utilize Kerr effect, in the time changing the gain of semiconductor optical amplifier, can change the phase differential of the two-beam transmitting in opposite directions in Sagnac ring, thereby realize the logical transition function of flashlight.
The semiconductor optical amplifier of asymmetric placement in the utility model utilization ring, produces the different nonlinear phase shifts from phase-modulation and Cross-phase Modulation induction to the two-beam of transmission in opposite directions, thereby has changed the phase differential of two-beam, realizes logic device translation function.
The utility model all-optical logic utensil has logical value combination many, and the gain of opening the light is little, and the advantages such as fast response time, are applicable to being applied in all-optical network.
Brief description of the drawings
Fig. 1 is the Sagnac interferometer all-optical logic device structural representation of bias lighting amplifier in the utility model ring.
Fig. 2 is that flashlight initial phase difference is 0 o'clock, and Output optical power is with the logic device output characteristic curve of semiconductor optical amplifier change in gain.Left figure power input is a1=1W, b1=0W, and right figure power input is a1=1W, b1=1W.
Fig. 3 is that semiconductor optical amplifier gain is 5 o'clock, the logic device output characteristic curve that Output optical power changes with flashlight initial phase difference.Left figure power input is a1=1W, b1=0W, and right figure power input is a1=1W, b1=1W.
Embodiment
Below in conjunction with accompanying drawing, the utility model is described in further detail.
As shown in Figure 1, in the present embodiment ring, the Sagnac interferometer all-optical logic device of bias lighting amplifier comprises signal source (1-1,1-2), circulator (2-1,2-2), bandpass filter (3-1,3-2), coupling mechanism (4), semiconductor optical amplifier (5), nonlinear optical fiber (6-1,6-2,6-3,6-4).The pumping wave wavelength coverage that signal source (1-1,1-2) produces is 1500nm-1600nm, and power is 1 W.Bandpass filter (2-1,2-2) BREATHABLE BANDWIDTH scope 1500nm-1600nm.The saturated gain of semiconductor optical amplifier (5) is 30 dB, and the nonlinear factor of nonlinear optical fiber (6-1,6-2,6-3,6-4) is 1360 W
-1/ km.In the time only having coupling mechanism and nonlinear optical fiber, just form Sagnac interferometer, and claim that the ring of nonlinear optical fiber composition is Sagnac ring, so claim that the utility model is biased amplifier in Sagnac ring.
The first port (a1) of circulator 2-1 is connected with signal source 1-1, and the second port (a2) is connected with first port (c1) of coupling mechanism 4, and the 3rd port (a3) is as output terminals A.The first port (b1) of circulator 2-2 is connected with signal source 1-2, and the second port (b2) is connected with second port (c2) of coupling mechanism 4, and the 3rd port (b3) is as output terminal B.The 3rd port (c3) of coupling mechanism 4 is connected with the first port (d1) of bandpass filter 3-1 with nonlinear optical fiber 6-3, the 4th port (c4) of coupling mechanism 4 is connected with the first port (e1) of bandpass filter 3-2 with nonlinear optical fiber 6-4.First port (f1) of semiconductor optical amplifier 5 is connected with the second port (d2) of bandpass filter 3-1 with nonlinear optical fiber 6-2, second port (f2) of semiconductor optical amplifier 5 is connected with the second port (e2) of bandpass filter 3-2 with nonlinear optical fiber 6-1.
Regulate the gain of semiconductor optical amplifier, 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 semiconductor optical amplifier change in gain.Cusp means that the path of output optical signal changes, and yield value is now called turn off gain.
Fig. 3 has shown: be 5 o'clock in semiconductor optical amplifier gain, and the logic device output characteristic curve that Output optical power changes with flashlight initial phase difference.Right figure cusp means that the path of output optical signal changes.
Table 1 for flashlight initial phase difference be 0 o'clock, semiconductor optical amplifier gain is 10 o'clock, all-optical logic device truth table.
Table 1
A1 in table, b1 represents input end, port A, port B is output terminal respectively, and logical value " 0 " and " 1 " indicate no signal input,
x ij be extinction ratio, be used for judging output logic value.
The implementation procedure of the utility model all-optical logic device:
1,, according to logic device output characteristic curve, find out the gain of opening the light.
2, according to turn off gain, select different gains, in conjunction with different input combinations, realize different logic functions simultaneously.
3, according to turn off gain, determine suitable gain, under determined gain, select suitable input light initial phase difference, in conjunction with different input combinations, realize different logic functions simultaneously.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201420350518.3U CN203982048U (en) | 2014-06-26 | 2014-06-26 | The Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring |
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| CN201420350518.3U CN203982048U (en) | 2014-06-26 | 2014-06-26 | The Sagnac interferometer all-optical logic device of biased amplifier in a kind of ring |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166292A (en) * | 2014-06-26 | 2014-11-26 | 杭州电子科技大学 | Sagnac interferometer all-optical logic device of loop biased amplifier |
| CN106199828A (en) * | 2016-07-26 | 2016-12-07 | 深圳大学 | Ultrafast microwave leads the full light trigger of Sagnac ring |
| CN109581780A (en) * | 2019-01-24 | 2019-04-05 | 广东朗研科技有限公司 | A Spectrum Tailored Long Loop Nonlinear Mirror and Its Applications |
-
2014
- 2014-06-26 CN CN201420350518.3U patent/CN203982048U/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104166292A (en) * | 2014-06-26 | 2014-11-26 | 杭州电子科技大学 | Sagnac interferometer all-optical logic device of loop biased amplifier |
| CN106199828A (en) * | 2016-07-26 | 2016-12-07 | 深圳大学 | Ultrafast microwave leads the full light trigger of Sagnac ring |
| CN106199828B (en) * | 2016-07-26 | 2019-06-28 | 深圳大学 | Ultrafast microwave leads the full light trigger of Sagnac ring |
| CN109581780A (en) * | 2019-01-24 | 2019-04-05 | 广东朗研科技有限公司 | A Spectrum Tailored Long Loop Nonlinear Mirror and Its Applications |
| CN109581780B (en) * | 2019-01-24 | 2022-01-04 | 广东朗研科技有限公司 | Long-ring nonlinear reflector for frequency spectrum clipping and application thereof |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20141203 Termination date: 20180626 |