CN107302175B - A kind of all-optical switch based on outfield auxiliary control - Google Patents
A kind of all-optical switch based on outfield auxiliary control Download PDFInfo
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- CN107302175B CN107302175B CN201710475886.9A CN201710475886A CN107302175B CN 107302175 B CN107302175 B CN 107302175B CN 201710475886 A CN201710475886 A CN 201710475886A CN 107302175 B CN107302175 B CN 107302175B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/09—Processes or apparatus for excitation, e.g. pumping
- H01S3/091—Processes or apparatus for excitation, e.g. pumping using optical pumping
- H01S3/094—Processes or apparatus for excitation, e.g. pumping using optical pumping by coherent light
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/102—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation
- H01S3/1022—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating by controlling the active medium, e.g. by controlling the processes or apparatus for excitation by controlling the optical pumping
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Abstract
The present invention provides a kind of all-optical switch based on outfield auxiliary control, the outer controlling filed for including: Erbium-doped Fiber Ring and being connected with the Erbium-doped Fiber Ring, the outer controlling filed includes tunable laser and the first fibre optic isolater for being connected with the tunable laser, and the output end of first fibre optic isolater is connected with the Erbium-doped Fiber Ring.Tunable laser output control signal is through in fibre optic isolater injection laser ring cavity, laser vibrates, and there is optical bistability, and the bistable siding-to-siding block length of Erbium-doped Fiber Ring can be by the control signal wavelength and power regulation that are exported by tunable laser.The configuration of the present invention is simple, stability is good, and practical application is strong, can be widely applied to the fields such as optic communication, optical oomputing and quick optical information processing.
Description
Technical field
The present invention relates to technical field of photo communication, more particularly to a kind of all-optical switch based on outfield auxiliary control.
Background technique
Since the 1990s, optical communication is rapidly developed, as the photoswitch of optic communication key link, ground
The position also the next important.Currently, there are two types of modes for the driving of photoswitch: automatically controlled and light-operated.Wherein electric-controlled switch is market-oriented, this
The shortcomings that class switchs is to need by photoelectric conversion, and working efficiency is lower.All-optical switch is a kind of as integrated photonics device
The switch of " with light-operated light " is not necessarily to photoelectric conversion, and the interaction between photon and medium is fully utilized to reach "ON", "Off"
Effect, all there is boundless application prospect in fields such as optic communication, optical oomputing and quick optical information processing, in recent years,
The research of all-optical switch is always focus concerned by people.
Currently, studying the implementation method of more all-optical switch mainly has nonlinear interferometer and Nonlinear Fiber Grating.
It realizes that the nonlinear interferometer of all-optical switch is divided into dual-beam and multi-beam interferometer, it is dry to particularly may be divided into dual-beam
Non-linear F-P, the annular chamber interferometer of the M-Z, non-linear Sagnac interferometer and multiple-beam interference that relate to.Medium refraction index is strong
It changing under light action, causes phase change between two beams transmission light, the original constructive interference of output end becomes destructive interference,
To realize photoswitch.Document Vol.16, No.1 (2007) 101-110 and IEEE PTL, VOL.16, NO.9,
SEPTEMBER2004 has relevant report.And the photoswitch that such method is realized needs higher threshold power and compared with high non-linearity
The material of specific refractivity.Nonlinear Fiber Grating type photoswitch common are nonlinear Bragg gratings (FBG), non-linear length
Periodic optical grating (LPFG) etc..Due to Kerr effect, after pump light is incident on FBG, fiber core refractive index changes, FBG
Reflectance spectrum central wavelength is moved with the increase of pumping light power.When lambda1-wavelength is exactly equal to FBG central wavelength
When, the reflective light intensity of signal light reaches maximum, and transmitted light intensity is minimum；When half of peak width of the mobile former reflectance spectrum of central wavelength, letter
The reflective light intensity of number light is minimum, and transmitted light intensity is maximum, realizes grating to the switching process of signal light.In LPFG principle with FBG
It is almost the same.Document OL, Vol.22, No.12,15June, 1997 and IEEE PTL, VOL.12, NO.1, JANUARY 2000 can
See relevant report.And primary element FBG, LPFG in the photoswitch that such method is realized, wherein cardiac wave length varies with temperature larger,
It influences practical.
And optical bistability is a kind of new nonlinear optical phenomena, and realizes one of the effective means of all-optical switch,
Have many advantages, such as switching speed it is fast, not by electromagnetic interference, in recent years, open the light always using bistable optical device as a kind of full light
Focus concerned by people and research hotspot.
Patent CN101257178A realizes all-optical switch using optical fiber wake vortex, and providing a kind of bistable section can
The annular bistable state erbium doped fiber laser of tune is injected separately into gain section and absorber portion Er-doped fiber using two pumping sources
In, its absorbent properties can be rapidly changed by adjusting the pump light being injected into absorber portion Er-doped fiber, and then adjust bistable
State section size.Using two pumping sources and two sections of Er-doped fibers, structure is more complex.Jung Mi Oh et al. is in document IEEE
Section annular Er-doped fiber is reported in JOURNAL OF QUANTUM ELECTRONICS, VOL.40, NO.4, APRIL 2004 to swash
Strong Bistability Phenomenon in light device changes bistable section size by control Er-doped fiber length and optical maser wavelength, and
This physical phenomenon is explained by analyzing and researching influence of above-mentioned two parameter to Er-doped fiber gain curve.And it is actually answering
In, for the erbium doped fiber laser of a certain fixation, Er-doped fiber length be it is certain, laser wavelength also need according to
Depending on the demand of family, therefore the photoswitch that this method is realized has little significance, can not practical application.
Summary of the invention
In view of the foregoing deficiencies of prior art, the purpose of the present invention is to provide a kind of based on outfield auxiliary control
All-optical switch, the all-optical switch structure is simple, and stability is good, and practical application is strong.
In order to achieve the above objects and other related objects, the present invention provides a kind of Quan Guangkai based on outfield auxiliary control
It closes, comprising: Erbium-doped Fiber Ring and the outer controlling filed being connected with the Erbium-doped Fiber Ring, the outer control
Field includes tunable laser and the first fibre optic isolater being connected with the tunable laser, first fibre optic isolater
Output end be connected with the Erbium-doped Fiber Ring.
Preferably, the tuning wavelength of the tunable laser is 1495nm-1640nm, tune power 2.0mW-
4.2mW。
It is highly preferred that the tuning wavelength of the tunable laser is 1500nm-1520nm, tune power 2.8mW.
Preferably, the Erbium-doped Fiber Ring include in a ring sequentially connected wavelength division multiplexer, gain media,
Optical fiber narrow band filter, the first fiber coupler, the second fiber coupler, and be connected with the input terminal of the wavelength division multiplexer
Semiconductor pump laser, and the light power meter being connected with the output end of first fiber coupler；Second light
The input terminal of fine coupler is connected with the output end of first fibre optic isolater.
In the present invention, wavelength division multiplexer, gain media, optical fiber narrow band filter, the first fiber coupler, the second optical fiber
Coupler constitutes laser ring cavity, and semiconductor pump laser is emitted pumping laser and is coupled to laser ring by wavelength division multiplexer port
Shape is intracavitary, and the ground state atom excited absorption of gain media is energized into metastable state under the action of semiconductor pump laser, at this time
High level population is more than low-lying level, and population inversion occurs.Semiconductor pump laser, which is emitted pump laser power and is in, to swash
Hereinafter, laser starts to vibrate behind injection outfield, generation Bistability Phenomenon can pass through and adjust outfield light device laser oscillating threshold
Intensity and wavelength control bistable section size, to realize light-operated smooth function.
Preferably, the Erbium-doped Fiber Ring further includes the second fibre optic isolater, second fibre optic isolater
It is set between the optical fiber narrow band filter and first fiber coupler.Second fibre optic isolater guarantees laser ring cavity
Interior laser one-way transmission avoids influence of the backward amplified spontaneous emission to laser.
Preferably, the Erbium-doped Fiber Ring further includes the second fibre optic isolater, second fibre optic isolater
It is set between second fiber coupler and the wavelength division multiplexer.
Preferably, the Erbium-doped Fiber Ring further includes the second fibre optic isolater, second fibre optic isolater
It is set between the gain media and the optical fiber narrow band filter.
Preferably, the wavelength division multiplexer is 980/1550nm wavelength division multiplexer.
Preferably, the central wavelength of the narrow band filter is 1550nm, and the three dB bandwidth of the narrow band filter is 1.2-
1.6nm。
It is highly preferred that the three dB bandwidth of the narrow band filter is 1.4nm.
Preferably, the wavelength of the semiconductor pump laser is 980nm or 1480nm.
Preferably, first fiber coupler includes the first output end that splitting ratio is 5-25% and splitting ratio is 95-
75% second output terminal, wherein the first output end of first fiber coupler is connected with the light power meter, and described
The second output terminal of one fiber coupler is connected with second fiber coupler.
It is highly preferred that first fiber coupler includes the first output end that splitting ratio is 20% and splitting ratio is 80%
Second output terminal.
Preferably, second fiber coupler includes first input end that splitting ratio is 5-25% and splitting ratio is 95-
75% the second input terminal, the first input end of second fiber coupler are connected with the outer controlling filed, second light
Second input terminal of fine coupler is connected with the second output terminal of the first fiber coupler.
It is highly preferred that second fiber coupler includes the first input end that splitting ratio is 20% and splitting ratio is 80%
The second input terminal.
As described above, a kind of all-optical switch based on outfield auxiliary control of the invention, has the advantages that this hair
Bright to be regulated and controled using outer controlling filed to Erbium-doped Fiber Ring, tunable laser output control signal is through Fiber isolation
Device injects in laser ring cavity, and laser vibrates, and optical bistability occurs, and the section of Erbium-doped Fiber Ring is long
Degree can be regulated and controled by the control signal wavelength and power exported by tunable laser.The configuration of the present invention is simple, stability
Good, practical application is strong, can be widely applied to the fields such as optic communication, optical oomputing and quick optical information processing.
Detailed description of the invention
Fig. 1 is shown as the structural schematic diagram of the all-optical switch of the invention based on outfield auxiliary control.
Fig. 2 is shown as in the present invention when controlling signal wavelength is 1505nm, laser output power and outer controlling filed power
Corresponding relation figure.
Fig. 3 is shown as in the present invention when controlling signal wavelength is 1510nm, laser output power and outer controlling filed power
Corresponding relation figure.
Fig. 4 is shown as in the present invention when controlling signal wavelength is 1515nm, laser output power and outer controlling filed power
Corresponding relation figure.
Fig. 5 is shown as in the present invention when controlling signal wavelength is 1520nm, laser output power and outer controlling filed power
Corresponding relation figure.
Component label instructions
1 outer controlling filed
11 tunable laser
12 first fibre optic isolaters
2 Erbium-doped Fiber Rings
21 wavelength division multiplexers
22 gain medias
23 optical fiber narrow band filters
24 first fiber couplers
25 second fiber couplers
26 second fibre optic isolaters
27 semiconductor pump lasers
28 light power meters
Specific embodiment
Illustrate embodiments of the present invention below by way of specific specific example, those skilled in the art can be by this specification
Other advantages and efficacy of the present invention can be easily understood for disclosed content.The present invention can also pass through in addition different specific realities
The mode of applying is embodied or practiced, the various details in this specification can also based on different viewpoints and application, without departing from
Various modifications or alterations are carried out under spirit of the invention.It should be noted that in the absence of conflict, following embodiment and implementation
Feature in example can be combined with each other.
It should be noted that illustrating the basic structure that only the invention is illustrated in a schematic way provided in following embodiment
Think, only shown in schema then with related component in the present invention rather than component count, shape and size when according to actual implementation
Draw, when actual implementation kenel, quantity and the ratio of each component can arbitrarily change for one kind, and its assembly layout kenel
It is likely more complexity.
The present invention provides a kind of all-optical switch based on outfield auxiliary control, which is not necessarily to photoelectric conversion, completely
Achieve the effect that "ON", "Off" using the interaction between photon and medium, can be applied to optic communication, optical oomputing and quickly
The fields such as optical information processing.Referring to Fig. 1, Fig. 1 is shown as assisting the structural schematic diagram of the all-optical switch of control based on outfield, such as
Shown in figure, the all-optical switch based on outfield auxiliary control includes outer controlling filed 1 and Erbium-doped Fiber Ring 2.
Wherein, outer controlling filed 1 includes tunable laser 11 and the first fibre optic isolater 12, the first fibre optic isolater 12
Input terminal is connected with tunable laser 11, and the output end of the first fibre optic isolater 12 is connected with Erbium-doped Fiber Ring.
The tuning wavelength of tunable laser 11 is 1495nm-1640nm, tune power 2.0mW-4.2mW.It, can in embodiment
The tuning wavelength of tuned laser 11 is 1500nm-1520nm, tune power 2.8mW.First fibre optic isolater 12 guarantees
The one-way transmission in outfield avoids the influence of the control laser of the external controlling filed of laser in laser ring cavity.
Erbium-doped Fiber Ring 2 includes that sequentially connected wavelength division multiplexer 21, gain media 22, optical fiber are narrow in a ring
Band filter 23, the first fiber coupler 24, the second fiber coupler 25, and be connected with the input terminal of wavelength division multiplexer 21
Semiconductor pump laser 27, and the light power meter 28 and the second light that are connected with the output end of the first fiber coupler 24
Fiber isolator 26；The input terminal of second fiber coupler 25 is connected with the output end of the first fibre optic isolater 12.
The present invention uses wavelength division multiplexer 21, gain media 22, optical fiber narrow band filter 23,24 and of the first fiber coupler
Second fiber coupler 25 constitutes laser ring cavity, and semiconductor pump laser 27 is emitted pumping laser by 21 end of wavelength division multiplexer
Mouth is coupled in laser ring cavity, and the ground state atom excited absorption of gain media is energized into metastable under the action of pumping laser
State, high level population is more than low-lying level at this time, and population inversion occurs.Semiconductor pump laser 27 is emitted pumping light power
In laser device laser oscillation threshold hereinafter, laser starts to vibrate behind injection outfield, Bistability Phenomenon is generated, tune can be passed through
Outfield strength and wavelength control bistable section size are saved, to realize light-operated smooth function.
In the present embodiment, the second fibre optic isolater 26 be set to the second fiber coupler 25 and wavelength division multiplexer 21 it
Between.Second fibre optic isolater 26 guarantees the laser one-way transmission in laser ring cavity, avoids backward amplified spontaneous emission to sharp
The influence of light.
In other embodiments, the second fibre optic isolater 26 can be set to optical fiber narrow band filter 23 and the first optical fiber coupling
Between clutch 24, alternatively, the second fibre optic isolater 26 is set between gain media 22 and optical fiber narrow band filter 23.These
It all belongs to the scope of protection of the present invention.Certainly, positional relationship recited herein is most preferred position, in other embodiments
In, the position of the second fibre optic isolater 26 can be selected according to actual needs, and it's not limited to that.
In the present embodiment, the wavelength division multiplexer 21 selects 980/1550nm wavelength division multiplexer.
Using length is the low-doped Er-doped fiber of 25-35m as gain media 2.In this present embodiment, using length
For 30m low-doped Er-doped fiber as gain media 2.
Er-doped fiber is good gain media in abundance pumping, without pumping or inject pump light therein very
It is good non-linear absorption body when weak.The present invention uses longer Er-doped fiber as gain media 2, when semiconductor pumped laser
27 power of device is fixed on laser vibrometer threshold value hereinafter, the Er-doped fiber that length is L can be divided into L1 and two sections of L2, L=L1+ at this time
L2, leading portion L1, which absorb pump light, can be used as gain media to signal light progress gain, and back segment L2 is not pumped, can be used as absorption
Body absorbs control light.According to the absorption of Er-doped fiber and gain spectral it is found that when wavelength is in 1500nm~1520nm, er-doped light
Fibre absorbs it greater than gain, and when the control signal injection annular of the wave band is intracavitary, L2 sections of Er-doped fibers reach saturation first and inhale
The absorbent properties that receipts, i.e. controlling filed change L2 sections of Er-doped fibers.
The central wavelength of narrow band filter is 1550nm, and the three dB bandwidth of narrow band filter is 1.2-1.6nm.In this implementation
In example, the central wavelength of narrow band filter is 1550nm, and the three dB bandwidth of narrow band filter is 1.4nm, it can be achieved that wavelength is
The laser of 1550nm exports.
The wavelength of semiconductor pump laser 27 is 980nm/1480nm.In the present embodiment, semiconductor pump laser
27 wavelength is 980nm.Semiconductor pump laser 27 export 980nm pump laser power be fixed on laser oscillating threshold with
Under, control signal is exported through in the first fibre optic isolater 12 injection laser ring cavity, laser is opened at this time by tunable laser 11
Begin oscillation, optical bistability occur, and its siding-to-siding block length (OB Region) can be by being exported by tunable laser 11
Control signal wavelength and power are regulated and controled.
First fiber coupler 24 includes the first output end that splitting ratio is 5-25% and splitting ratio is the second of 95-75%
First output end of output end, the first fiber coupler 24 is connected with light power meter 28, and the second of the first fiber coupler 24 is defeated
Outlet is connected with the second fiber coupler 25.In the present embodiment, the first fiber coupler 24 includes that splitting ratio is 20%
The second output terminal that one output end and splitting ratio are 80%, the first output end that the splitting ratio of the first fiber coupler 24 is 20%
It is connected with light power meter 28, the second output terminal and the second fiber coupler 25 that the splitting ratio of the first fiber coupler 24 is 80%
It is connected.In laser ring 20% laser coupled is exported, 80% laser vibrates in laser ring cavity.
Second input terminal of second fiber coupler 25 including first input end and 95-75% that splitting ratio is 5-25%,
The first input end of second fiber coupler 25 is connected with outer controlling filed 1, the second input terminal of the second fiber coupler 25 and
The second output terminal of one fiber coupler 24 is connected.In the present embodiment, it is 20% that the second fiber coupler 25, which includes splitting ratio,
First input end and splitting ratio be 80% the second input terminal, the splitting ratio of the second fiber coupler 25 be 20% it is first defeated
Enter end to be connected with outer controlling filed 1, the second input terminal and the first fiber coupling that the splitting ratio of the second fiber coupler 25 is 80%
The second output terminal that the splitting ratio of device 24 is 80% is connected.
Please refer to Fig. 2 to 5, Fig. 2 to 5 be respectively indicated as when control signal wavelength be 1505nm, 1510nm, 1515nm,
When 1520nm, output laser power and outer controlling filed power corresponding relation figure can illustrate the bistable state section of outer controlling filed regulation
The variation of length scale.Pump laser power is fixed within laser oscillating threshold by it, the light splitting of the first fiber coupler 24
Laser than the first input end output for 20% measures power through light power meter 28, injects the control signal in laser ring cavity
Wavelength XcAnd power PcIt can be adjusted by tunable laser.
In Fig. 2, work as λcWhen=1505nm, it is gradually increased power from zero, works as PcWhen being adjusted to 2.0mW (rising edge threshold value), swash
Ring of light shape is intracavitary laser output, and laser output power is with PcIncrease and increase, if reducing P at this timec, laser will not disappear,
Until PcIt is decreased to 0.6mW (failing edge threshold value), laser is suppressed completely, and bistable siding-to-siding block length (OB Region) is 2.0mW-
0.6mW=1.4mW.In Fig. 3, Fig. 4, Fig. 5, when control signal wavelength lambdacWhen=1510nm, 1515nm, 1520nm, equally may be used
Observe bistable hysteresis loop, bistable siding-to-siding block length (OB Region) is respectively 0.9mW, 0.6mW, 0.3mW.I.e. for
In the control laser injection laser ring cavity of a certain wavelength of 1505nm, 1510nm, 1515nm, 1520nm, all there is apparent light
Bistability is learned, and with the increase of control signal wavelength, bistable hysteresis loop width is compressed to a certain extent, i.e.,
Realize regulation of the outer controlling filed to bistable siding-to-siding block length.
In conclusion the present invention regulates and controls Erbium-doped Fiber Ring using outer controlling filed, tunable laser
Output control signal is through in fibre optic isolater injection laser ring cavity, laser vibrates, and optical bistability occurs, annular
The siding-to-siding block length of erbium doped fiber laser can be regulated and controled by the control signal wavelength and power exported by tunable laser.
The configuration of the present invention is simple, stability is good, and practical application is strong, can be widely applied at optic communication, optical oomputing and quick optical information
The fields such as reason.So the present invention effectively overcomes various shortcoming in the prior art and has high industrial utilization value.
The above-described embodiments merely illustrate the principles and effects of the present invention, and is not intended to limit the present invention.It is any ripe
The personage for knowing this technology all without departing from the spirit and scope of the present invention, carries out modifications and changes to above-described embodiment.Cause
This, institute is complete without departing from the spirit and technical ideas disclosed in the present invention by those of ordinary skill in the art such as
At all equivalent modifications or change, should be covered by the claims of the present invention.
Claims (8)
1. it is a kind of based on outfield auxiliary control all-optical switch characterized by comprising Erbium-doped Fiber Ring and with institute
State the connected outer controlling filed of Erbium-doped Fiber Ring, the outer controlling filed include tunable laser and with it is described tunable
The first connected fibre optic isolater of laser, the output end and the Erbium-doped Fiber Ring of first fibre optic isolater
It is connected；Wherein, the tuning wavelength of the tunable laser is 1500nm-1520nm, tune power 2.0mW-4.2mW, institute
Stating Erbium-doped Fiber Ring further includes the second fibre optic isolater and wavelength division multiplexer, and the wavelength division multiplexer is 980nm/
1550nm wavelength division multiplexer.
2. the all-optical switch according to claim 1 based on outfield auxiliary control, it is characterised in that: the annular er-doped light
Fibre laser includes being sequentially connected gain media, optical fiber narrow band filter, the first fiber coupler, the second fiber coupling in a ring
Device, and the semiconductor pump laser being connected with the input terminal of the wavelength division multiplexer, and with first fiber coupling
The connected light power meter of the output end of device；
The input terminal of second fiber coupler is connected with the output end of first fibre optic isolater.
3. it is according to claim 2 based on outfield auxiliary control all-optical switch, it is characterised in that: second optical fiber every
It is set between the optical fiber narrow band filter and first fiber coupler from device.
4. it is according to claim 2 based on outfield auxiliary control all-optical switch, it is characterised in that: second optical fiber every
It is set between second fiber coupler and the wavelength division multiplexer from device.
5. the all-optical switch according to claim 2 based on outfield auxiliary control, it is characterised in that: the annular er-doped light
Fibre laser further includes the second fibre optic isolater, and second fibre optic isolater is set to the gain media and the optical fiber is narrow
Between band filter.
6. the all-optical switch according to claim 2 based on outfield auxiliary control, it is characterised in that: the narrow band filter
Central wavelength be 1550nm, the three dB bandwidth of the narrow band filter is 1.2-1.6nm；
And/or the wavelength of the semiconductor pump laser is 1480nm.
7. the all-optical switch according to claim 2 based on outfield auxiliary control, it is characterised in that: the first optical fiber coupling
Clutch includes the first output end that splitting ratio is 5-25% and the second output terminal that splitting ratio is 95-75%, wherein described first
First output end of fiber coupler is connected with the light power meter, the second output terminal of first fiber coupler with it is described
Second fiber coupler is connected.
8. the all-optical switch according to claim 2 based on outfield auxiliary control, it is characterised in that: the second optical fiber coupling
The second input terminal that clutch includes the first input end that splitting ratio is 5-25% and splitting ratio is 95-75%, second optical fiber
The first input end of coupler is connected with the outer controlling filed, the second input terminal and the first optical fiber of second fiber coupler
The second output terminal of coupler is connected.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201710475886.9A CN107302175B (en) | 2017-06-21 | 2017-06-21 | A kind of all-optical switch based on outfield auxiliary control |
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| CN201710475886.9A CN107302175B (en) | 2017-06-21 | 2017-06-21 | A kind of all-optical switch based on outfield auxiliary control |
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| CN107302175A CN107302175A (en) | 2017-10-27 |
| CN107302175B true CN107302175B (en) | 2019-10-22 |
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| CN201710475886.9A Expired - Fee Related CN107302175B (en) | 2017-06-21 | 2017-06-21 | A kind of all-optical switch based on outfield auxiliary control |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07231131A (en) * | 1994-02-16 | 1995-08-29 | Sumitomo Electric Ind Ltd | Optical fiber laser apparatus |
| US5544192A (en) * | 1994-03-19 | 1996-08-06 | Alcatel N.V. | Optically pumped bistable laser |
| CN1448773A (en) * | 2003-04-24 | 2003-10-15 | 上海交通大学 | Low noise index gain blocked erbium-doped amplifier |
| CN101257178A (en) * | 2008-03-06 | 2008-09-03 | 上海交通大学 | Double steady interval adjustable round bistable state erbium-doped optical fiber laser |
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2017
- 2017-06-21 CN CN201710475886.9A patent/CN107302175B/en not_active Expired - Fee Related
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH07231131A (en) * | 1994-02-16 | 1995-08-29 | Sumitomo Electric Ind Ltd | Optical fiber laser apparatus |
| US5544192A (en) * | 1994-03-19 | 1996-08-06 | Alcatel N.V. | Optically pumped bistable laser |
| CN1448773A (en) * | 2003-04-24 | 2003-10-15 | 上海交通大学 | Low noise index gain blocked erbium-doped amplifier |
| CN101257178A (en) * | 2008-03-06 | 2008-09-03 | 上海交通大学 | Double steady interval adjustable round bistable state erbium-doped optical fiber laser |
Non-Patent Citations (1)
| Title |
|---|
| 掺铒光纤中的双稳态现象的研究;沈立君;《光学学报》;20070430;第27卷(第4期);全文 * |
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