CN1363855A - NOT gate and AND gate for optical logic operation - Google Patents
NOT gate and AND gate for optical logic operation Download PDFInfo
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- CN1363855A CN1363855A CN 02100840 CN02100840A CN1363855A CN 1363855 A CN1363855 A CN 1363855A CN 02100840 CN02100840 CN 02100840 CN 02100840 A CN02100840 A CN 02100840A CN 1363855 A CN1363855 A CN 1363855A
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Abstract
The invention relates to NOT gate and AND gate is optical logic operation. These optical parts are all composed of semiconductor laser, electricity absorb modulator, PIN photodiode and optical fiber (or optical wave-guide). They can be prepared on substrate of semiconductor materials by using production technique of integrated circuits. Their structures are simple and power consumption is lower. The invented parts can be optical logic operation and can form other all optical parts, such as: monostable flip-flop, optical modulator in optical signal control and optical switch in optical signal control etc. Said parts can be used in optical fiber communication system with wave division multiplex, all optical communication network or optical computer.
Description
Technical field: the present invention relates to the optical logic operation device not gate and with door, belong to the photoelectron technology field.
Background technology: not gate, with door and or door be the elementary cell of carrying out logical operation, just can realize the function of all logical operations by their combination.Since in the light logic or door can realize by simple 2 * 1 passive optical couplers, become the key of realization optical logic operation so realize light not gate and light and Men Ze.At present, the research of light not gate and light and door still is in the exploratory stage, and the light and door research report of some based semiconductor image intensifers or nonlinear fiber four-wave mixing effect has been arranged.List of references (1) Fortenberry, R., A.J.Lowery, W.L.Ha, and R.S.Tucker, " Photonic Packet Switch UsingSemiconductor Optical Amplifier Gates ", Electron.Lett., 1991,27, pp.1305-1307. (2) NESSET, D., TATHAM, M.C., COTTER, D., and WESTBROOK, L.D.: " Degenerate wavelength operation of an ultrafast all-optical AND gateusing four wave mixing in a semiconductor laser amplifier ", Electron.Lett., 1994,30, (23), pp.1938-1940. (3) NESSET, D., TATHAM, M.C., andCOTTER, D.: " All-optical AND gate operating on 10 Gbit/s signals at thesame wavelength using four-wave mixing in a semiconductor laseramplifier ", Electron.Lett., 1995,31, (25), pp.896-897. but prior art system complex structure, the cost height, efficient is low, can not adopt integrated circuit technology to realize, thereby also can not constitute the optical logic operation device.
Summary of the invention: the purpose of this invention is to provide and a kind ofly can carry out optical logic operation and optical logic operation device simple in structure, low in energy consumption and that can on the semiconductor material substrate, adopt integrated circuit fabrication process to realize.
Provided by the inventionly be used for the not gate of optical logic operation and be characterised in that with door: this full optical device is made of semiconductor laser, electric absorption (EA) modulator, PIN photodiode and optical fiber (or optical waveguide), its input, output signal and control signal are light signal, and be simple in structure, low in energy consumption, can adopt ic manufacturing process to realize on the semiconductor material substrate.
Concrete enforcement of the present invention can be illustrated by example reference the following drawings.
Fig. 1 and Fig. 2 be optical logic operation not gate provided by the invention and with light path, the circuit diagram of door, be " not gate " hereinafter to be referred as light not gate and the anti-phase modulator of light, light is " with door " with door and light in-phase modulator.
One, as shown in Figure 1, not gate comprises the light signal input system that is made of optical fiber A1 and PIN photodiode A2. and by semiconductor laser 3, the light signal output system that electric absorption (EA) modulator A4 and optical fiber B5 constitute, PIN photodiode A2 and electric absorption (EA) modulator A4 is in series and constitutes electric loop with direct supply, and the Output optical power of semiconductor laser 3 is directly coupled to electric absorption (EA) modulator A4.
The course of work of not gate is as follows:
(1) when among the optical fiber A1 during input of no light signal, the back resistance of PIN photodiode A2 will be much larger than the back resistance of electric absorption (EA) modulator A4, so the reverse bias voltage on electric absorption (EA) the modulator A4 is tending towards 0.The insertion loss of electric absorption (EA) this moment modulator A4 is less, and light signal output is arranged among the optical fiber B5.
(2) when light signal when input arranged among the optical fiber A1, the back resistance of PIN photodiode A2 can be much smaller than the back resistance of electric absorption (EA) modulator A4, so the reverse bias voltage on electric absorption (EA) the modulator A4 is tending towards V
CcThe insertion loss of electric absorption (EA) this moment modulator A4 is very big, no light signal output among the optical fiber B5.
Therefore, the present invention can be used as the not gate of light logic or the phase inverter of light signal.
Two, as shown in Figure 2, comprise the light signal input system A that constitutes by optical fiber A1 and PIN photodiode A2 with door, by the light signal input system B of optical fiber B5 and electric absorption (EA) modulator B7 formation, by the control system of laser instrument 3, PIN photodiode A2, PIN photodiode B6 and electric absorption (EA) modulator A4, electric absorption (EA) modulator B7 formation and the light signal output system that constitutes by electric absorption (EA) modulator B7 and optical fiber C8.
PIN photodiode A2 and electric absorption (EA) modulator A4 is in series also and direct supply constitutes electric loop; PIN photodiode B6 and electric absorption (EA) modulator B7 is in series also and direct supply constitutes electric loop.
As follows with the course of work of door:
(1) when having light signal to be input to PIN photodiode A2 among the optical fiber A1, the back resistance of PIN photodiode A2 will be much smaller than the back resistance of electric absorption (EA) modulator A4, so the reverse bias voltage on electric absorption (EA) the modulator A4 will be tending towards V
CcAnd produce very big insertion loss, will not have the light signal input this moment on the PIN photodiode B6.When the upward no light signal of PIN photodiode B6 is imported, the back resistance of PIN photodiode B6 will be much larger than the back resistance of electric absorption (EA) modulator B7, so the reverse bias voltage on electric absorption (EA) the modulator B7 will be tending towards 0 and insert the loss meeting and drop to minimum.At this moment, if among the optical fiber B5 input optical signal is arranged also then light signal output will be arranged among the optical fiber C8, export otherwise will there be light signal among the optical fiber C8.
(2) when no light signal is input to PIN photodiode A2 among the optical fiber A1, the back resistance of PIN photodiode A2 will be much larger than the back resistance of electric absorption (EA) modulator A4, therefore the reverse bias voltage on electric absorption (EA) the modulator A4 will be tending towards 0 and insert the loss meeting and drop to minimum, and PIN photodiode B6 went up light signal input will be arranged this moment.When light signal when input arranged on the PIN photodiode B6, the back resistance of PIN photodiode B6 will be much smaller than the back resistance of electric absorption (EA) modulator B7, so the reverse bias voltage on electric absorption (EA) the modulator B7 will be tending towards V
CcAnd produce very big insertion loss.At this moment, no matter have or not input optical signal among the optical fiber B5, do not have light signal output among the optical fiber C8.
Obviously, have only when input optical signal A and B exist, light signal output is just arranged among the output optical fibre C8.Therefore, the present invention can be used as light logic with door or full optical signal modulator.
The present invention can carry out optical logic operation and simple in structure, low in energy consumption, is the optical logic operation device that can adopt integrated circuit fabrication process to realize on the semiconductor material substrate.The present invention has realized that not only the light digital logical operation also can constitute the photomodulator of the monostalbe trigger of light, light signal control, the full optical devices such as photoswitch of light signal control, can be applicable to the division multiplex fibre-optic communication wave system, in all-optical communication network and the optical computer.
The Figure of description explanation:
Fig. 1, light not gate and the anti-phase modulator of light
Fig. 2, light and door and light in-phase modulator
The relation of Fig. 3, non-gate input signal and output signal extinction ratio
Among the figure: 1-optical fiber A, 2-PIN photodiode A, the 3-laser instrument, 4-EA modulator A,
5-optical fiber B, 6-PIN photodiode B, 7-EA modulator B, 8-optical fiber C.
Embodiment:
Example of the present invention is light not gate shown in Figure 1 and light and door shown in Figure 2.The relation of wherein non-gate input signal and output signal extinction ratio as shown in Figure 3.
Claims (4)
1, a kind of not gate of carrying out optical logic operation comprises light signal input system, light signal output system, it is characterized in that:
1) the light signal input system is by optical fiber A (1), and PIN photodiode A (2) constitutes;
2) the light signal output system is by semiconductor laser (3), and electric absorption (EA) modulator A (4) and optical fiber B (5) constitute.
2, optical logic operation not gate according to claim 1 is characterized in that:
1) electric absorption (EA) modulator A (4) and PIN photodiode A (2) are in series and apply reverse dc offset voltage V
Cc
2) Output optical power of semiconductor laser (3) is directly coupled to electric absorption (EA) modulator A (4).
3, a kind of that carry out optical logic operation and door comprise light signal input system, light signal output system and Optimizing Control System, it is characterized in that:
1) light signal input system A is by optical fiber A (1), and PIN photodiode A (2) constitutes;
2) light signal input system B is by optical fiber B (5), and electric absorption (EA) modulator B (7) constitutes;
3) the light signal output system is by electric absorption (EA) modulator B (7), and optical fiber C (8) constitutes;
4) the light signal control system is by semiconductor laser (3), PIN photodiode A (2), and PIN photodiode B (6), electric absorption (EA) modulator A (4), electric absorption (EA) modulator B (7) constitutes.
4, optical logic operation according to claim 3 and door is characterized in that:
1) electric absorption (EA) modulator A (4) and PIN photodiode A (2) are in series, electric absorption (EA) modulator B (7) and PIN photodiode B (6) are in series and apply reverse dc offset voltage V respectively
Cc
2) Output optical power of semiconductor laser (3) is coupled to PIN photodiode B (6) by electric absorption (EA) modulator A (4).
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02100840XA CN1144091C (en) | 2002-01-30 | 2002-01-30 | NOT gate and AND gate for optical logic operation |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02100840XA CN1144091C (en) | 2002-01-30 | 2002-01-30 | NOT gate and AND gate for optical logic operation |
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| CN1363855A true CN1363855A (en) | 2002-08-14 |
| CN1144091C CN1144091C (en) | 2004-03-31 |
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Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN101980145A (en) * | 2010-10-25 | 2011-02-23 | 上海大学 | No-carry adder of ternary optical computer |
| CN102023455B (en) * | 2009-09-16 | 2012-08-08 | 中国科学院半导体研究所 | N-InP-based monolithic integrated optical logic gate and manufacturing method thereof |
| WO2015089812A1 (en) * | 2013-12-20 | 2015-06-25 | 华为技术有限公司 | All-optical logic gate |
| CN106405979A (en) * | 2016-10-18 | 2017-02-15 | 中国科学院半导体研究所 | Integrated all-optical logic device |
| CN106444207A (en) * | 2016-10-18 | 2017-02-22 | 中国科学院半导体研究所 | Integrated all-optical switch |
| CN110231745A (en) * | 2019-04-18 | 2019-09-13 | 浙江工业大学 | A kind of light logic inverter arithmetic system based on time lens imaging |
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| RU203435U1 (en) * | 2020-12-02 | 2021-04-05 | Федеральное государственное автономное образовательное учреждение высшего образования "Крымский федеральный университет имени В.И. Вернадского" | Fiber logic gate "NOT driven" |
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2002
- 2002-01-30 CN CNB02100840XA patent/CN1144091C/en not_active Expired - Fee Related
Cited By (10)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102023455B (en) * | 2009-09-16 | 2012-08-08 | 中国科学院半导体研究所 | N-InP-based monolithic integrated optical logic gate and manufacturing method thereof |
| CN101980145A (en) * | 2010-10-25 | 2011-02-23 | 上海大学 | No-carry adder of ternary optical computer |
| CN101980145B (en) * | 2010-10-25 | 2012-10-31 | 上海大学 | No-carry adder of ternary optical computer |
| WO2015089812A1 (en) * | 2013-12-20 | 2015-06-25 | 华为技术有限公司 | All-optical logic gate |
| CN104956260A (en) * | 2013-12-20 | 2015-09-30 | 华为技术有限公司 | All-optical logic gate |
| CN104956260B (en) * | 2013-12-20 | 2019-04-12 | 华为技术有限公司 | A kind of all-optical logic gate |
| CN106405979A (en) * | 2016-10-18 | 2017-02-15 | 中国科学院半导体研究所 | Integrated all-optical logic device |
| CN106444207A (en) * | 2016-10-18 | 2017-02-22 | 中国科学院半导体研究所 | Integrated all-optical switch |
| CN110231745A (en) * | 2019-04-18 | 2019-09-13 | 浙江工业大学 | A kind of light logic inverter arithmetic system based on time lens imaging |
| CN110231745B (en) * | 2019-04-18 | 2023-09-26 | 浙江工业大学 | Optical logic NOT gate operation system based on time lens imaging |
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| Publication number | Publication date |
|---|---|
| CN1144091C (en) | 2004-03-31 |
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