CN103969913A - Erbium-doped optical fiber coupler cross phase modulation all-optical logic device - Google Patents
Erbium-doped optical fiber coupler cross phase modulation all-optical logic device Download PDFInfo
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- CN103969913A CN103969913A CN201410187481.1A CN201410187481A CN103969913A CN 103969913 A CN103969913 A CN 103969913A CN 201410187481 A CN201410187481 A CN 201410187481A CN 103969913 A CN103969913 A CN 103969913A
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Abstract
The invention discloses an erbium-doped optical fiber coupler cross phase modulation all-optical logic device. The all-optical logic device comprises a pumping source, three optical isolators, three polarization controllers, an erbium-doped optical fiber amplifier, a band-pass filter, two wavelength division multiplexers, a signal source and an erbium-doped optical fiber coupler. Pumping light sequentially passes through the first optical isolator, the first polarization controller, the erbium-doped optical fiber amplifier and the band-pass filter and is connected with first ports of the wavelength division multiplexers; a first bundle of signal light sequentially passes through the second optical isolator and the second polarization controller and is connected with second ports of the wavelength division multiplexers; third ports of the wavelength division multiplexers are connected with a first port of the erbium-doped optical fiber coupler; a second bundle of signal light sequentially passes through the third optical isolator and the third polarization controller and is connected with a second port of the erbium-doped optical fiber coupler. The all-optical logic device has the combined functions of photoinduced refractive index changing and light amplification, and the power of the needed pumping light can be lowered to the milliwatt magnitude.
Description
Technical field
The invention belongs to optical information technical field, be specifically related to a kind of Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device.
Background technology
All-optical logic device is the gordian technique in photon technology field, and the realization of following all-optical network is had to important effect, and all-optical switch and digital optical logic computing become the study hotspot of optical communication and optical information processing.All-optical logic utensil has multiple alternative inputs, output port, can realize the various logic computing of light signal, and people have adopted various ways to realize all-optical switch and all-optical logic operations at present.The doped fiber coupling mechanism all-optical logic device with optical pumping that adopts Cross-phase Modulation mode, exists the acting in conjunction of photoinduced refractive index change and light amplification, not only the response time fast, and required pumping light power can drop to milliwatt magnitude.
Summary of the invention
The present invention is directed to the deficiencies in the prior art, a kind of Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device is provided.
The present invention takes following technical scheme: Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device, comprise pumping source, the first optoisolator, the second optoisolator and the 3rd optoisolator, the first Polarization Controller, the second Polarization Controller and the 3rd Polarization Controller, Erbium-Doped Fiber Amplifier (EDFA), bandpass filter, first wave division multiplexer, Second Wave division multiplexer, Er-doped fiber coupling mechanism, first signal source and secondary signal source.Pumping source is connected with the first port of the first optoisolator, the second port of the first optoisolator is connected with the first port of the first Polarization Controller, the second port of the first Polarization Controller is connected with the first port of Erbium-Doped Fiber Amplifier (EDFA), the second port of Erbium-Doped Fiber Amplifier (EDFA) is connected with the first port of bandpass filter, the second port of bandpass filter is connected with the first port of first wave division multiplexer, first signal source is connected with the first port of the second optoisolator, the second port of the second optoisolator is connected with the first port of the second Polarization Controller, the second port of the second Polarization Controller is connected with the second port of first wave division multiplexer, secondary signal source is connected with the first port of the 3rd optoisolator, the second port of the 3rd optoisolator is connected with the first port of the 3rd Polarization Controller, the 3rd port of first wave division multiplexer is connected with the first port of Er-doped fiber coupling mechanism, the second port of the 3rd Polarization Controller is connected with the second port of Er-doped fiber coupling mechanism, the 3rd port of Er-doped fiber coupling mechanism is connected with the first port of Second Wave division multiplexer.
Preferably, the first port of wavelength division multiplexer is 50% port, and the second port is 50% port.
Preferably, the cross-coupling coefficient of this Er-doped fiber coupling mechanism is 5.
Preferably, signal source) signal wavelength range that produces is 1500nm-1550nm, power is 10mW.
Preferably, the pumping wave wavelength coverage that pumping source produces is 900-1000nm, and power bracket is 0 ~ 40mW.
Feature of the present invention is the first input end mouth at Er-doped fiber coupling mechanism, adds the adjustable heavy pumping light of a beam intensity by wavelength division multiplexer, and high light, by mixing the optical fiber of bait ion, causes the energy level transition of doping ion, produces the variation of complex propagation constant.Because Er-doped fiber has light amplification effect, thereby show as the variation of gain, utilize optical kerr effect simultaneously, produce Cross-phase Modulation, realize the logic device translation function of flashlight.
It is all the function of pumping light power that the present invention utilizes Er-doped fiber variations in refractive index and change in gain, the pump light of input enters Er-doped fiber coupling mechanism together with flashlight through wavelength division multiplexer, due to Cross-phase Modulation and gain acting in conjunction, the phase place that causes the flashlight transmitting in coupling mechanism changes, thereby realizes logic device translation function.
All-optical logic device of the present invention is not only highly sensitive, and switching response speed is fast, and needed photoswitch power can drop to milliwatt magnitude.
Brief description of the drawings
Fig. 1 is the structural representation of Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device.
Fig. 2 is the logic device family curve that extinction ratio changes with pumping light power.
In Fig. 2
x 12 represent the extinction ratio of Er-doped fiber coupling mechanism the 3rd port and the 4th port,
x 21 represent the extinction ratio of Er-doped fiber coupling mechanism the 4th port and the 3rd port.
Embodiment
Below in conjunction with accompanying drawing, the invention will be further described.
As shown in Figure 1, a kind of Er-doped fiber coupling mechanism of the present embodiment Cross-phase Modulation all-optical logic device comprises pumping source 1, the first optoisolator 2-1, the second optoisolator 2-2 and the 3rd optoisolator 2-3, the first Polarization Controller 3-1, the second Polarization Controller 3-2 and the 3rd Polarization Controller 3-3, Erbium-Doped Fiber Amplifier (EDFA) 4, bandpass filter 5, first wave division multiplexer 6-1, Second Wave division multiplexer 6-2, Er-doped fiber coupling mechanism 7, first signal source 8-1 and secondary signal source 8-2.The pumping wave wavelength coverage that pumping source produces is 900nm-1000nm, and power bracket is 0 ~ 40mW.The signal wavelength range that signal source produces is 1500nm-1550nm, and power is 10mW.
Pumping source is connected with the first port a1 of the first optoisolator, the second port a2 of the first optoisolator is connected with the first port b1 of the first Polarization Controller, the second port b2 of the first Polarization Controller is connected with the first port c1 of Erbium-Doped Fiber Amplifier (EDFA), the second port c2 of Erbium-Doped Fiber Amplifier (EDFA) is connected with the first port d1 of bandpass filter, the second port d2 of bandpass filter is connected with the first port f1 of first wave division multiplexer, first signal source is connected with the first port a3 of the second optoisolator, the second port a4 of the second optoisolator is connected with the first port b3 of the second Polarization Controller, the second port b4 of the second Polarization Controller is connected with the second port f2 of first wave division multiplexer, secondary signal source is connected with the first port e1 of the 3rd optoisolator, the second port e2 of the 3rd optoisolator is connected with the first port h1 of the 3rd Polarization Controller, the 3rd port f3 of first wave division multiplexer is connected with the first port i1 of Er-doped fiber coupling mechanism, the second port h2 of the 3rd Polarization Controller is connected with the second port i2 of Er-doped fiber coupling mechanism, the 3rd port i3 of Er-doped fiber coupling mechanism is connected with the first port k1 of Second Wave division multiplexer.
The output power of adjustable pump light, the different output power of calculating fiber coupler output port, according to extinction ratio decision logic device logic function.
Fig. 2 has shown: in given power input situation, and the logic device family curve that the extinction ratio of two output ports changes with pumping light power.
Table 1 represents to make pump power P=20mW, combines the truth table of the all-optical logic device drawing according to different inputs.In table 1, make P=20mW, i1, i2 and i3, i4 represents respectively the input/output port of fiber coupler, logical value " 0 " and " 1 " indicate no signal input.
x ij be extinction ratio, be used for judging output logic value.
Table 1
The implementation procedure of all-optical logic device of the present invention:
1, obtain with the variation of pump light the nonlinear model that resonates according to gain, refractive index.
2, select different pump powers, in conjunction with different input combinations, realize different photoswitch logic gates simultaneously.
Above the preferred embodiments of the present invention and principle are had been described in detail, for those of ordinary skill in the art, according to thought provided by the invention, in embodiment, will change, and these changes also should be considered as protection scope of the present invention.
Claims (5)
1. Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device, comprise pumping source (1), the first optoisolator (2-1), the second optoisolator (2-2) and the 3rd optoisolator (2-3), the first Polarization Controller (3-1), the second Polarization Controller (3-2) and the 3rd Polarization Controller (3-3), Erbium-Doped Fiber Amplifier (EDFA) (4), bandpass filter (5), first wave division multiplexer (6-1), Second Wave division multiplexer (6-2), Er-doped fiber coupling mechanism (7), first signal source (8-1) and secondary signal source (8-2), it is characterized in that:
Pumping source is connected with first port (a1) of the first optoisolator, second port (a2) of the first optoisolator is connected with first port (b1) of the first Polarization Controller, second port (b2) of the first Polarization Controller is connected with first port (c1) of Erbium-Doped Fiber Amplifier (EDFA), second port (c2) of Erbium-Doped Fiber Amplifier (EDFA) is connected with first port (d1) of bandpass filter, second port (d2) of bandpass filter is connected with first port (f1) of first wave division multiplexer, first signal source is connected with first port (a3) of the second optoisolator, second port (a4) of the second optoisolator is connected with first port (b3) of the second Polarization Controller, second port (b4) of the second Polarization Controller is connected with second port (f2) of first wave division multiplexer, secondary signal source is connected with first port (e1) of the 3rd optoisolator, second port (e2) of the 3rd optoisolator is connected with first port (h1) of the 3rd Polarization Controller, the 3rd port (f3) of first wave division multiplexer is connected with first port (i1) of Er-doped fiber coupling mechanism, second port (h2) of the 3rd Polarization Controller is connected with second port (i2) of Er-doped fiber coupling mechanism, the 3rd port (i3) of Er-doped fiber coupling mechanism is connected with first port (k1) of Second Wave division multiplexer.
2. Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device as claimed in claim 1, is characterized in that: the cross-coupling coefficient of Er-doped fiber coupling mechanism (7) is 5.
3. Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device as claimed in claim 1, is characterized in that: the first port of wavelength division multiplexer (6-1), (6-2) is 50% port, the second port is 50% port.
4. Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device as claimed in claim 1, is characterized in that: the signal wavelength range that signal source (8-1), (8-2) produce is 1500nm-1550nm, and power is 10mW.
5. Er-doped fiber coupling mechanism Cross-phase Modulation all-optical logic device as claimed in claim 1, is characterized in that: the pumping wave wavelength that pumping source (1) produces is 900-1000nm, power bracket is 0 ~ 40mW.
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106772819A (en) * | 2016-12-01 | 2017-05-31 | 南京邮电大学 | The interference-type all-optical switch of chalcogenide glass photonic crystal fiber 2 × 2 and control method |
| CN112613615A (en) * | 2020-12-17 | 2021-04-06 | 杭州电子科技大学 | Logic arithmetic unit containing two semiconductor optical amplifiers |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5920666A (en) * | 1997-01-02 | 1999-07-06 | The Board Of Trustees For The Leland Stanford Junior University | Stable nonlinear Mach-Zehnder fiber switch |
| CN103529569A (en) * | 2013-10-14 | 2014-01-22 | 杭州电子科技大学 | All-optical logic device based on asymmetric coupler cross phase modulation |
| CN203838457U (en) * | 2014-05-05 | 2014-09-17 | 杭州电子科技大学 | Cross phase modulation type all-optical logic device for Er-doped optical fiber coupler |
-
2014
- 2014-05-05 CN CN201410187481.1A patent/CN103969913A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5920666A (en) * | 1997-01-02 | 1999-07-06 | The Board Of Trustees For The Leland Stanford Junior University | Stable nonlinear Mach-Zehnder fiber switch |
| CN103529569A (en) * | 2013-10-14 | 2014-01-22 | 杭州电子科技大学 | All-optical logic device based on asymmetric coupler cross phase modulation |
| CN203838457U (en) * | 2014-05-05 | 2014-09-17 | 杭州电子科技大学 | Cross phase modulation type all-optical logic device for Er-doped optical fiber coupler |
Non-Patent Citations (2)
| Title |
|---|
| QILIANG LI等: "All-optical logic gates based on cross-phase modulation in anasymmetric coupler", 《OPTICS COMMUNICATIONS》 * |
| 马连升等: "掺铒光纤非线性耦合器的实验研究", 《光子学报》 * |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| 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 |
| CN106772819A (en) * | 2016-12-01 | 2017-05-31 | 南京邮电大学 | The interference-type all-optical switch of chalcogenide glass photonic crystal fiber 2 × 2 and control method |
| CN106772819B (en) * | 2016-12-01 | 2019-04-30 | 南京邮电大学 | 2 × 2 interference-type all-optical switch of chalcogenide glass photonic crystal fiber and control method |
| CN112613615A (en) * | 2020-12-17 | 2021-04-06 | 杭州电子科技大学 | Logic arithmetic unit containing two semiconductor optical amplifiers |
| CN112613615B (en) * | 2020-12-17 | 2024-02-13 | 杭州电子科技大学 | Logic operator containing two semiconductor optical amplifiers |
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