CN106444212A - All-optical wavelength converter and method based on conical sulfur optical fiber four-wave mixing effect - Google Patents
All-optical wavelength converter and method based on conical sulfur optical fiber four-wave mixing effect Download PDFInfo
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- CN106444212A CN106444212A CN201610852156.1A CN201610852156A CN106444212A CN 106444212 A CN106444212 A CN 106444212A CN 201610852156 A CN201610852156 A CN 201610852156A CN 106444212 A CN106444212 A CN 106444212A
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/365—Non-linear optics in an optical waveguide structure
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/35—Non-linear optics
- G02F1/355—Non-linear optics characterised by the materials used
- G02F1/3555—Glasses
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Abstract
The invention discloses an all-optical wavelength converter and method based on a conical sulfur optical fiber four-wave mixing effect. The all-optical wavelength converter comprises an optical combiner, conical sulfur glass optical fibers, an optical filter, an optical amplifier and an optical detector, wherein the conical sulfur glass optical fibers serve as a four-wave mixing medium; the nonlinearity of the conical sulfur glass optical fibers can reach about 10000 times that of the conventional optical fibers. The all-optical wavelength converter is simple in structure and low in manufacturing difficulty on the basis of meeting the needs of optical fiber parametric wavelength conversion, and because the conical sulfur glass optical fibers have extremely high nonlinearity, the high requirement on peak light power of an input optical signal is lowered, namely when the peak light power of the input optical signal is relatively low, the conical sulfur glass optical fibers can still generate an obvious four-wave mixing effect, the system requirement can be met by laser power output by an ordinary continuous light laser, and a pulse laser with high peak power is not needed any more. The all-optical wavelength converter disclosed by the invention has the advantages of being simple in structure, low in manufacturing difficulty and applicable to wavelength conversion of continuous optical waves.
Description
Technical field
The present invention relates to a kind of AOWC, especially relates to a kind of based on taper sulfur system optical fiber four-wave mixing effect
The AOWC that answers and method.
Background technology
All optical network be with optical fiber as transmission medium, based on Wavelength routing, by introduce optical cross connect (OXC) and divide
Insert multiplexing (OADM) node, the communication network with high flexibility and survivability of foundation.All optical network can make communication network possess more
Strong manageability motility, the transparency, compared with traditional communication net and existing optical communication system, it has many advantages,
For example：Huge bandwidth can be provided；There is the transmission transparency；There is higher processing speed and the lower bit error rate；Possess
Extensibility, reconfigurability；Equipment and the work of huge optical electrical/light conversion is eliminated, the friendship of network entirety can be substantially improved
Throw-over degree, improves reliability.
Wavelength convert is the key technology of the output optical signal for the input optical signal of a certain wavelength being converted to another wavelength.
Wavelength conversion technology is while have particularly important application in terms of photoswitch, Wavelength routing selection, light exchange.All Optical Wavelength Conversion
Device (AOWC:All-optical Wavelength Converter) it is all-optical network, wavelength-division multiplex system (WDM) and full light
The important devices of exchange system, are recycling and the reallocation for realizing wavelength, play broadband resource, and improve network system capacity
Necessary means.AOWC (AOWC) is referred to without to electric treatment, directly information from a light wavelength conversion
Device to another optical wavelength.AOWC is directly realized by light wavelength conversion, can overcome O/E/O wavelength shifter
The speed bottle-neck of middle electrical part, transparent low deficiency.
At present, the light wavelength conversion technology for adopting in AOWC mainly has XGM (XGM), intersects
Phase-modulation (XPM) and four-wave mixing etc..The extinction ratio that AOWC based on XGM technology is obtained is poor,
OSNR and error performance are poor, on the other hand the gain saturaition due to adopting, and what wavelength convert was obtained is input signal
Anti-phase waveform, therefore such AOWC be also unsuitable for the larger ultrashort pulse communication system of dutycycle.Based on intersection
The shortcoming of the AOWC of gain modulation technology is the Strength Changes sensitivity to input optical signal, that is, have certain threshold value
Characteristic, so must strictly be controlled to the power of incoming signal.Based in the AOWC of four wave mixing technology
The main medium by the use of the optical fiber with relatively strong nonlinearity characteristic as four-wave mixing, its transformation rate height, saturating to signal format
Bright, and multiple wavelength can be converted simultaneously, progressively replace the AOWC based on XGM technology and be based on
The AOWC conversion of XGM technology.
Mainly using photonic crystal fiber as four ripples in the existing AOWC based on four-wave mixing effect
The medium of mixing.Photonic crystal fiber can be referred to as porous optical fiber again, and it utilizes the larger difference of refractive index between silicon and air
Change the parameter that the diameter in interfacial air hole and distribution neatly design light, the little photonic crystal fiber of effective core area
Non-linear can reach conventional fiber 100-1000 times, disclosure satisfy that the needs of Fiber-optic parameter wavelength convert.But, photon crystalline substance
Body optical fiber structure complexity, manufacture difficulty is big.In addition, photonic crystal fiber produces the peak value of the optical signal needed for four-wave mixing effect
Power is still higher, and only pulsed laser source could export the optical signal of so big peak power, therefore, existing employing light
Photonic crystal fiber is only applicable to pulsed light as the medium of four-wave mixing based on the AOWC of four-wave mixing effect
Ripple, it is impossible to suitable for the four-wave mixing application of continuous light wave, using limited.
Content of the invention
One of the technical problem to be solved is to provide a kind of simple structure, and manufacture difficulty is little, and can be suitably used for
The AOWC based on taper sulfur system optical fiber four-wave mixing effect of the wavelength convert of continuous light wave.
The present invention solves the technical scheme adopted by one of above-mentioned technical problem：One kind is based on four ripple of taper sulfur system optical fiber
The AOWC of mixing effect, including optical combiner, taper chalcogenide glass fiber, optical filter, image intensifer and light
Detector；
Described optical combiner has first input end, the second input and an outfan, and the first of described optical combiner
Input is used for accessing flashlight, and the second input of described optical combiner is used for accessing pump light；
Described taper chalcogenide glass fiber draws cone to form by common chalcogenide glass fiber, described taper chalcogenide glass light
Fibre includes integrally formed first Wei Lazhui area, the second Wei Lazhui area, the first conical transition zone, the second conical transition zone and cone
Waist, the one end in described the first Wei Lazhui area by the first described conical transition zone and described cone waist connection, described the
The one end in two Wei Lazhui areas is by the second described conical transition zone and described cone waist connection；Described the first Wei Lazhui area and
The second described Wei Lazhui area is symmetrical with respect to described cone waist, the first described conical transition zone and the second described taper
Cross area symmetrical with respect to described cone waist, the core diameter in the first described Wei Lazhui area and the second described Wei Lazhui area is
The cladding diameter of 50um, the first described Wei Lazhui area and the second described Wei Lazhui area is 500um, the fibre of described cone waist
Core diameter is less than 1um, and the other end in the first described Wei Lazhui area is the input of described taper chalcogenide glass fiber, described
The second Wei Lazhui area the other end be described taper chalcogenide glass fiber outfan；
The input connection of the outfan of described optical combiner and described taper chalcogenide glass fiber, described taper
The input connection of the outfan of chalcogenide glass fiber and described optical filter, the outfan of described optical filter and described
Image intensifer input connection, the input connection of the outfan of described image intensifer and described photo-detector.
Described image intensifer is adjustable image intensifer.
Compared with prior art, the advantage of the AOWC of the present invention is by optical combiner, taper sulfur system
AOWC realized by glass optical fiber, optical filter, image intensifer and photo-detector, and optical combiner is with the first input
End, the second input and outfan, the first input end of optical combiner is used for accessing flashlight, the second input of optical combiner
Hold for accessing pump light；Taper chalcogenide glass fiber draws cone to form by common chalcogenide glass fiber, taper chalcogenide glass fiber
Including integrally formed first Wei Lazhui area, the second Wei Lazhui area, the first conical transition zone, the second conical transition zone and cone waist,
The one end in the first Wei Lazhui area is by the first conical transition zone and cone waist connection, and the one end in the second Wei Lazhui area passes through the second taper
Transition region and cone waist connection, the first Wei Lazhui area and the second Wei Lazhui area are symmetrical with respect to cone waist, the first conical transition zone and the
Two conical transition zones are symmetrical with respect to cone waist, the core diameter in the first Wei Lazhui area and the second Wei Lazhui area be 50um, first
The cladding diameter in Wei Lazhui area and the second Wei Lazhui area is 500um, and the core diameter for boring waist is less than 1um, the first Wei Lazhui area
The other end for taper chalcogenide glass fiber input, the other end in the second Wei Lazhui area is defeated for taper chalcogenide glass fiber
Go out end；The input connection of the outfan of optical combiner and taper chalcogenide glass fiber, the outfan of taper chalcogenide glass fiber
Connect with the input of optical filter, the input connection of the outfan of optical filter and image intensifer, the output of image intensifer
The input of end and photo-detector connects；Using taper chalcogenide glass fiber as four-wave mixing medium, the taper sulfur system glass
The non-linear of glass optical fiber can reach 10,000 times of conventional fiber or so, on the basis of the needs for meeting Fiber-optic parameter wavelength convert
On, simple structure, manufacture difficulty is little.High non-linear of taper chalcogenide glass fiber is additionally, since, is reduced and input light is believed
The high request of number peak optical powers；Even if the peak optical powers of input optical signal are relatively low, taper chalcogenide glass fiber can also be produced
The significant four-wave mixing effect of life, the laser power of common continuous light laser output can just meet system requirements, and no longer
Need the pulse laser of high-peak power；Thus, the AOWC of the present invention is not only simple in structure, manufacture difficulty
Little, and can be suitably used for the wavelength convert of continuous light wave.
The two of the technical problem to be solved are to provide a kind of simple structure, and manufacture difficulty is little, and can be suitably used for
The All Optical Wavelength Conversion method based on taper sulfur system optical fiber four-wave mixing effect of the wavelength convert of continuous light wave.
The present invention solves two technical schemes for being adopted of above-mentioned technical problem：One kind is based on four ripple of taper sulfur system optical fiber
The All Optical Wavelength Conversion method of mixing effect, comprises the following steps：
1) flashlight and pump light are produced according to the requirement of all-wave wavelength convert；
2) flashlight and pump light are merged into by the first mixing light wave using optical combiner, wherein optical combiner has first
Input, the second input and outfan, the first input end of the described optical combiner of described flashlight input, described pump
Second input of the described optical combiner of Pu light input, the outfan of described optical combiner exports the first described mixed light
Ripple；
3) the first described mixing light wave is produced four-wave mixing effect using taper chalcogenide glass fiber as medium, raw
Become the second mixing light wave, the second described mixing light wave includes described flashlight, described pump light and described signal
The conversion light that light and described pump light are generated after four-wave mixing effect, described taper chalcogenide glass fiber is by common sulfur
It is that glass optical fiber draws cone to form, described taper chalcogenide glass fiber includes that integrally formed first Wei Lazhui area, second are not drawn
Cone area, the first conical transition zone, the second conical transition zone and cone waist, the one end in described the first Wei Lazhui area is by described the
One conical transition zone and described cone waist connection, the one end in the second described Wei Lazhui area passes through the second described conical transition zone
Connect with described cone waist；The first described Wei Lazhui area and the second described Wei Lazhui area are symmetrical with respect to described cone waist,
The first described conical transition zone and the second described conical transition zone are symmetrical with respect to described cone waist, and described first does not draw
The core diameter in cone area and the second described Wei Lazhui area is 50um, the first described Wei Lazhui area and described second and does not draw
The cladding diameter in cone area is 500um, and the core diameter of described cone waist is less than 1um, described the first Wei Lazhui area another
The input for described taper chalcogenide glass fiber is held, the other end in the second described Wei Lazhui area is described taper sulfur system
The outfan of glass optical fiber, the input of the described taper chalcogenide glass fiber of the first described mixing light wave input, described
Second that the outfan output of taper chalcogenide glass fiber is described mixes light wave；
4) pump light described in including in the second described mixing light wave and described letter are filtered using optical filter
Number light, obtains described conversion light；
5), after being processed described conversion light using image intensifer, input photo-detector demodulation obtains digital signal.
Described image intensifer is adjustable image intensifer.
Described pump light is directly generated using laser instrument, and described flashlight drives directly modulation to swash using digital signal
Light device is generated.
Compared with prior art, the advantage of the All Optical Wavelength Conversion method of the present invention is by taper chalcogenide glass fiber
As the medium of four-wave mixing, taper chalcogenide glass fiber include integrally formed first Wei Lazhui area, the second Wei Lazhui area,
One conical transition zone, the second conical transition zone and cone waist, the one end in the first Wei Lazhui area is by the first conical transition zone and cone waist
Connection, the one end in the second Wei Lazhui area is by the second conical transition zone and cone waist connection, and cone is not drawn in the first Wei Lazhui area and second
Area is symmetrical with respect to cone waist, and the first conical transition zone and the second conical transition zone are symmetrical with respect to cone waist, the first Wei Lazhui area and
The core diameter in the second Wei Lazhui area is the cladding diameter of 50um, the first Wei Lazhui area and the second Wei Lazhui area and is 500um,
The core diameter of cone waist is less than 1um, and the other end in the first Wei Lazhui area is the input of taper chalcogenide glass fiber, and second does not draw
The other end in cone area is the outfan of taper chalcogenide glass fiber；The non-linear of the taper chalcogenide glass fiber can reach routine
10,000 times of optical fiber or so, on the basis of the needs for meeting Fiber-optic parameter wavelength convert, simple structure, manufacture difficulty is little；And
And, due to high non-linear of taper chalcogenide glass fiber, the high request to input optical signal peak optical powers is reduced, even if
When the peak optical powers of input optical signal are relatively low, taper chalcogenide glass fiber can also produce significant four-wave mixing effect, commonly
The laser power of continuous light laser output can just meet system requirements, and no longer need the pulse laser of high-peak power
Device；Thus, the AOWC of the present invention is not only simple in structure, and manufacture difficulty is little, and can be suitably used for the ripple of continuous light wave
Long conversion.
Description of the drawings
Fig. 1 is the structure chart of the AOWC based on taper sulfur system optical fiber four-wave mixing effect of the present invention；
Fig. 2 is the taper sulfur system glass of the AOWC based on taper sulfur system optical fiber four-wave mixing effect of the present invention
The structure chart of glass optical fiber；
Fig. 3 is the four-wave mixing original of the AOWC based on taper sulfur system optical fiber four-wave mixing effect of the present invention
Reason figure.
Specific embodiment
The invention discloses a kind of AOWC based on taper sulfur system optical fiber four-wave mixing effect, below in conjunction with
Accompanying drawing embodiment is made further in detail to the AOWC based on taper sulfur system optical fiber four-wave mixing effect of the present invention
Description.
Embodiment one：As depicted in figs. 1 and 2, a kind of all-optical wave-length based on taper sulfur system optical fiber four-wave mixing effect turns
Parallel operation, including：Optical combiner 1, taper chalcogenide glass fiber 2, optical filter 3, image intensifer 4 and photo-detector 5；Optical combiner
1 with first input end, the second input and outfan, and the first input end of optical combiner 1 is used for access flashlight, photosynthetic
Second input of road device 1 is used for accessing pump light；Taper chalcogenide glass fiber 2 draws cone to form by common chalcogenide glass fiber,
Taper chalcogenide glass fiber 2 includes integrally formed first Wei Lazhui area 21, the second Wei Lazhui area 22, the first conical transition zone
23rd, the second conical transition zone 24 and cone waist 25, the one end in the first Wei Lazhui area 21 is by the first conical transition zone 23 and cone waist 25
Connection, the one end in the second Wei Lazhui area 22 is connected by the second conical transition zone 24 and cone waist 25；First Wei Lazhui area 21 and
Two Wei Lazhui areas 22 are symmetrical with respect to cone waist 25, and the first conical transition zone 23 and the second conical transition zone 24 are with respect to 25 pairs, waist of cone
Claim, the core diameter in the first Wei Lazhui area 21 and the second Wei Lazhui area 22 is 50um, the first Wei Lazhui area 21 and second and does not draw
The cladding diameter in cone area 22 is 500um, and the core diameter for boring waist 25 is less than 1um, and the other end in the first Wei Lazhui area 21 is cone
The input of shape chalcogenide glass fiber 2, the other end in the second Wei Lazhui area 22 is the outfan of taper chalcogenide glass fiber 2；Light
The input connection of the outfan of combiner 1 and taper chalcogenide glass fiber 2, the outfan of taper chalcogenide glass fiber 2 and light
The input connection of wave filter 3, the input connection of the outfan of optical filter 3 and image intensifer 4, the output of image intensifer 4
The input of end and photo-detector 5 connects.
Embodiment two：As depicted in figs. 1 and 2, a kind of all-optical wave-length based on taper sulfur system optical fiber four-wave mixing effect turns
Parallel operation, including：Optical combiner 1, taper chalcogenide glass fiber 2, optical filter 3, image intensifer 4 and photo-detector 5；Optical combiner
1 with first input end, the second input and outfan, and the first input end of optical combiner 1 is used for access flashlight, photosynthetic
Second input of road device 1 is used for accessing pump light；Taper chalcogenide glass fiber 2 draws cone to form by common chalcogenide glass fiber,
Taper chalcogenide glass fiber 2 includes integrally formed first Wei Lazhui area 21, the second Wei Lazhui area 22, the first conical transition zone
23rd, the second conical transition zone 24 and cone waist 25, the one end in the first Wei Lazhui area 21 is by the first conical transition zone 23 and cone waist 25
Connection, the one end in the second Wei Lazhui area 22 is connected by the second conical transition zone 24 and cone waist 25；First Wei Lazhui area 21 and
Two Wei Lazhui areas 22 are symmetrical with respect to cone waist 25, and the first conical transition zone 23 and the second conical transition zone 24 are with respect to 25 pairs, waist of cone
Claim, the core diameter in the first Wei Lazhui area 21 and the second Wei Lazhui area 22 is 50um, the first Wei Lazhui area 21 and second and does not draw
The cladding diameter in cone area 22 is 500um, and the core diameter for boring waist 25 is less than 1um, and the other end in the first Wei Lazhui area 21 is cone
The input of shape chalcogenide glass fiber 2, the other end in the second Wei Lazhui area 22 is the outfan of taper chalcogenide glass fiber 2；Light
The input connection of the outfan of combiner 1 and taper chalcogenide glass fiber 2, the outfan of taper chalcogenide glass fiber 2 and light
The input connection of wave filter 3, the input connection of the outfan of optical filter 3 and image intensifer 4, the output of image intensifer 4
The input of end and photo-detector 5 connects.
In the present embodiment, image intensifer 4 is adjustable image intensifer.
Operation principle such as Fig. 3 institute of the AOWC based on taper sulfur system optical fiber four-wave mixing effect of the present invention
Show, power is 10dBm, frequency is ω1Flashlight and power be 25dBm, frequency be ω2Pump light through optical combiner 1
After merge into the first mixing light wave and be input in taper chalcogenide glass fiber 2, the flashlight in the first mixing light wave and pump light
Four-wave mixing effect is produced in taper chalcogenide glass fiber 2 and the second mixing light wave is obtained, the second mixing light wave includes flashlight, pump
The conversion light that Pu light and flashlight and pump light are generated after four-wave mixing effect, the centre wavelength of optical filter 3 is located at 2
ω2-ω1, the transmitting photo-signal for selecting purpose wavelength passes through, although the peak power of flashlight and pump light is all smaller,
But non-linear due to taper chalcogenide glass fiber 2 can reach 10,000 times of conventional fiber or so, flashlight and pump light exist
Taper chalcogenide glass fiber 2 can obtain the second mixing light wave after producing stronger four-wave mixing effect, the second mixing light wave
First pass through optical filter flashlight and pump light are filtered and conversion light is obtained, after conversion light is processed using image intensifer 4, obtain
To meeting after the light wave of all-wave wavelength convert requirement, output digit signals are demodulated using photo-detector 5.
The invention also discloses a kind of All Optical Wavelength Conversion method based on taper sulfur system optical fiber four-wave mixing effect, below
In conjunction with accompanying drawing embodiment being made into based on the All Optical Wavelength Conversion method of taper sulfur system optical fiber four-wave mixing effect to the present invention
Step is described in detail.
Embodiment one：As depicted in figs. 1 and 2, a kind of all-optical wave-length based on taper sulfur system optical fiber four-wave mixing effect turns
Method is changed, is comprised the following steps：
1) flashlight and pump light are produced according to the requirement of all-wave wavelength convert；
2) flashlight and pump light are merged into by the first mixing light wave using optical combiner 1, wherein optical combiner 1 has the
One input, the second input and outfan, flashlight is input into the first input end of optical combiner 1, pump light input light combining
Second input of device 1, the outfan output first of optical combiner 1 mixes light wave；
3) the first mixing light wave is produced four-wave mixing effect using taper chalcogenide glass fiber 2 as medium, generates the
Two mixing light waves, the second mixing light wave includes flashlight, pump light and flashlight and pump light after four-wave mixing effect
The conversion light of generation, taper chalcogenide glass fiber 2 draws cone to form by common chalcogenide glass fiber, and taper chalcogenide glass fiber 2 is wrapped
Include integrally formed first Wei Lazhui area 21, the second Wei Lazhui area 22, the first conical transition zone 23,24 and of the second conical transition zone
Cone waist 25, the one end in the first Wei Lazhui area 21 is connected by the first conical transition zone 23 and cone waist 25, the second Wei Lazhui area 22
One end is connected by the second conical transition zone 24 and cone waist 25；First Wei Lazhui area 21 and the second Wei Lazhui area 22 are with respect to cone waist
25 is symmetrical, and the first conical transition zone 23 and the second conical transition zone 24 are symmetrical with respect to cone waist 25, the first Wei Lazhui area 21 and the
The core diameter in two Wei Lazhui areas 22 is the cladding diameter of 50um, the first Wei Lazhui area 21 and the second Wei Lazhui area 22 and is
500um, the core diameter for boring waist 25 is less than 1um, and the other end in the first Wei Lazhui area 21 is the input of taper chalcogenide glass fiber 2
End, the other end in the second Wei Lazhui area 22 is the outfan of taper chalcogenide glass fiber 2, the first mixing light wave input taper sulfur system
The input of glass optical fiber 2, the outfan output second of taper chalcogenide glass fiber 2 mixes light wave；
4) pump light and flashlight for including in the second mixing light wave is filtered using optical filter 3, obtains conversion light；
5), after being processed conversion light using image intensifer 4, the input demodulation of photo-detector 5 obtains digital signal.
Embodiment two：As depicted in figs. 1 and 2, a kind of all-optical wave-length based on taper sulfur system optical fiber four-wave mixing effect turns
Method is changed, is comprised the following steps：
1) flashlight and pump light are produced according to the requirement of all-wave wavelength convert；
2) flashlight and pump light are merged into by the first mixing light wave using optical combiner 1, wherein optical combiner 1 has the
One input, the second input and outfan, flashlight is input into the first input end of optical combiner 1, pump light input light combining
Second input of device 1, the outfan output first of optical combiner 1 mixes light wave；
3) the first mixing light wave is produced four-wave mixing effect using taper chalcogenide glass fiber 2 as medium, generates the
Two mixing light waves, the second mixing light wave includes flashlight, pump light and flashlight and pump light after four-wave mixing effect
The conversion light of generation, taper chalcogenide glass fiber 2 draws cone to form by common chalcogenide glass fiber, and taper chalcogenide glass fiber 2 is wrapped
Include integrally formed first Wei Lazhui area 21, the second Wei Lazhui area 22, the first conical transition zone 23,24 and of the second conical transition zone
Cone waist 25, the one end in the first Wei Lazhui area 21 is connected by the first conical transition zone 23 and cone waist 25, the second Wei Lazhui area 22
One end is connected by the second conical transition zone 24 and cone waist 25；First Wei Lazhui area 21 and the second Wei Lazhui area 22 are with respect to cone waist
25 is symmetrical, and the first conical transition zone 23 and the second conical transition zone 24 are symmetrical with respect to cone waist 25, the first Wei Lazhui area 21 and the
The core diameter in two Wei Lazhui areas 22 is the cladding diameter of 50um, the first Wei Lazhui area 21 and the second Wei Lazhui area 22 and is
500um, the core diameter for boring waist 25 is less than 1um, and the other end in the first Wei Lazhui area 21 is the input of taper chalcogenide glass fiber 2
End, the other end in the second Wei Lazhui area 22 is the outfan of taper chalcogenide glass fiber 2, the first mixing light wave input taper sulfur system
The input of glass optical fiber 2, the outfan output second of taper chalcogenide glass fiber 2 mixes light wave；
4) pump light and flashlight for including in the second mixing light wave is filtered using optical filter 3, obtains conversion light；
5), after being processed conversion light using image intensifer 4, the input demodulation of photo-detector 5 obtains digital signal.
In the present embodiment, image intensifer 4 is adjustable image intensifer.
Embodiment three：As depicted in figs. 1 and 2, a kind of all-optical wave-length based on taper sulfur system optical fiber four-wave mixing effect turns
Method is changed, is comprised the following steps：
1) flashlight and pump light are produced according to the requirement of all-wave wavelength convert；
2) flashlight and pump light are merged into by the first mixing light wave using optical combiner 1, wherein optical combiner 1 has the
One input, the second input and outfan, flashlight is input into the first input end of optical combiner 1, pump light input light combining
Second input of device 1, the outfan output first of optical combiner 1 mixes light wave；
3) the first mixing light wave is produced four-wave mixing effect using taper chalcogenide glass fiber 2 as medium, generates the
Two mixing light waves, the second mixing light wave includes flashlight, pump light and flashlight and pump light after four-wave mixing effect
The conversion light of generation, taper chalcogenide glass fiber 2 draws cone to form by common chalcogenide glass fiber, and taper chalcogenide glass fiber 2 is wrapped
Include integrally formed first Wei Lazhui area 21, the second Wei Lazhui area 22, the first conical transition zone 23,24 and of the second conical transition zone
Cone waist 25, the one end in the first Wei Lazhui area 21 is connected by the first conical transition zone 23 and cone waist 25, the second Wei Lazhui area 22
One end is connected by the second conical transition zone 24 and cone waist 25；First Wei Lazhui area 21 and the second Wei Lazhui area 22 are with respect to cone waist
25 is symmetrical, and the first conical transition zone 23 and the second conical transition zone 24 are symmetrical with respect to cone waist 25, the first Wei Lazhui area 21 and the
The core diameter in two Wei Lazhui areas 22 is the cladding diameter of 50um, the first Wei Lazhui area 21 and the second Wei Lazhui area 22 and is
500um, the core diameter for boring waist 25 is less than 1um, and the other end in the first Wei Lazhui area 21 is the input of taper chalcogenide glass fiber 2
End, the other end in the second Wei Lazhui area 22 is the outfan of taper chalcogenide glass fiber 2, the first mixing light wave input taper sulfur system
The input of glass optical fiber 2, the outfan output second of taper chalcogenide glass fiber 2 mixes light wave；
4) pump light and flashlight for including in the second mixing light wave is filtered using optical filter 3, obtains conversion light；
5), after being processed conversion light using image intensifer 4, the input demodulation of photo-detector 5 obtains digital signal.
In the present embodiment, image intensifer 4 is adjustable image intensifer.
In the present embodiment, pump light is directly generated using laser instrument, and described flashlight is driven direct using digital signal
Modulation laser instrument generation.
Claims (5)
1. a kind of AOWC based on taper sulfur system optical fiber four-wave mixing effect, it is characterised in that including light combining
Device, taper chalcogenide glass fiber, optical filter, image intensifer and photo-detector；
Described optical combiner has first input end, the second input and outfan, and the first of described optical combiner is input into
Hold for flashlight will be accessed, the second input of described optical combiner is used for accessing pump light；
Described taper chalcogenide glass fiber draws cone to form by common chalcogenide glass fiber, described taper chalcogenide glass fiber bag
Include integrally formed first Wei Lazhui area, the second Wei Lazhui area, the first conical transition zone, the second conical transition zone and cone waist, institute
The one end in the first Wei Lazhui area for stating is by the first described conical transition zone and the connection of described cone waist, and described second does not draw
The one end in cone area is by the second described conical transition zone and described cone waist connection；The first described Wei Lazhui area and described
Second Wei Lazhui area is symmetrical with respect to described cone waist, the first described conical transition zone and the second described conical transition zone phase
Symmetrical for described cone waist, the core diameter in the first described Wei Lazhui area and the second described Wei Lazhui area be 50um,
The cladding diameter in the first described Wei Lazhui area and the second described Wei Lazhui area is 500um, and the fibre core of described cone waist is straight
Footpath is less than 1um, and the other end in the first described Wei Lazhui area is the input of described taper chalcogenide glass fiber, and described the
The other end in two Wei Lazhui areas is the outfan of described taper chalcogenide glass fiber；
The input connection of the outfan of described optical combiner and described taper chalcogenide glass fiber, described taper sulfur system
The input connection of the outfan of glass optical fiber and described optical filter, the outfan of described optical filter and described light
The input connection of amplifier, the described outfan of image intensifer and the input connection of described photo-detector.
2. a kind of AOWC based on taper sulfur system optical fiber four-wave mixing effect according to claim 1, its
The image intensifer for being characterised by described is adjustable image intensifer.
3. a kind of All Optical Wavelength Conversion method based on taper sulfur system optical fiber four-wave mixing effect, it is characterised in that including following step
Suddenly：
1) flashlight and pump light are produced according to the requirement of all-wave wavelength convert；
2) flashlight and pump light are merged into by the first mixing light wave using optical combiner, wherein optical combiner is with the first input
End, the second input and outfan, the first input end of the described optical combiner of described flashlight input, described pump light
Second input of the described optical combiner of input, first that the outfan output of described optical combiner is described mixes light wave；
3) described first mixing light wave is produced four-wave mixing effect using taper chalcogenide glass fiber as medium, generates the
Two mixing light waves, described second mixing light wave include described flashlight, described pump light and described flashlight and
The conversion light that described pump light is generated after four-wave mixing effect, described taper chalcogenide glass fiber is by common sulfur system glass
Glass optical fiber draw cone form, described taper chalcogenide glass fiber include integrally formed first Wei Lazhui area, the second Wei Lazhui area,
First conical transition zone, the second conical transition zone and cone waist, the one end in the first described Wei Lazhui area is bored by described first
Shape transition region and described cone waist connection, the one end in the second described Wei Lazhui area passes through the second described conical transition zone and institute
The cone waist connection that states；The first described Wei Lazhui area and the second described Wei Lazhui area are symmetrical with respect to described cone waist, described
Symmetrical with respect to described cone waist, described the first Wei Lazhui area in the first conical transition zone and the second described conical transition zone
50um, the first described Wei Lazhui area and the second described Wei Lazhui area are with the core diameter in the second described Wei Lazhui area
Cladding diameter be 500um, the core diameter of described cone waist is less than 1um, and the other end in the first described Wei Lazhui area is
The input of described taper chalcogenide glass fiber, the other end in the second described Wei Lazhui area is described taper chalcogenide glass
The outfan of optical fiber, the input of the described taper chalcogenide glass fiber of described first mixing light wave input, described taper
Second that the outfan output of chalcogenide glass fiber is described mixes light wave；
4) pump light described in including in the second described mixing light wave and described flashlight are filtered using optical filter,
Obtain described conversion light；
5), after being processed described conversion light using image intensifer, input photo-detector demodulation obtains digital signal.
4. a kind of All Optical Wavelength Conversion method based on taper sulfur system optical fiber four-wave mixing effect according to claim 3,
It is characterized in that described image intensifer is adjustable image intensifer.
5. a kind of All Optical Wavelength Conversion method based on taper sulfur system optical fiber four-wave mixing effect according to claim 3,
It is characterized in that described pump light is directly generated using laser instrument, described flashlight drives directly modulation using digital signal
Laser instrument is generated.
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| CN201610852156.1A CN106444212A (en) | 2016-09-26 | 2016-09-26 | All-optical wavelength converter and method based on conical sulfur optical fiber four-wave mixing effect |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631871A (en) * | 2018-03-16 | 2018-10-09 | 浙江工商职业技术学院 | All-optical wavelength converter and method based on sulphur system fiber cross phase modulation |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609723A (en) * | 2015-01-16 | 2015-05-13 | 宁波大学 | Preparation method of chalcogenide glass tapered fibers |
| CN105337144A (en) * | 2015-09-23 | 2016-02-17 | 宁波大学 | System and method for generating terahertz wave on the basis of taper chalcogenide fiber four-wave mixing |
-
2016
- 2016-09-26 CN CN201610852156.1A patent/CN106444212A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104609723A (en) * | 2015-01-16 | 2015-05-13 | 宁波大学 | Preparation method of chalcogenide glass tapered fibers |
| CN105337144A (en) * | 2015-09-23 | 2016-02-17 | 宁波大学 | System and method for generating terahertz wave on the basis of taper chalcogenide fiber four-wave mixing |
Non-Patent Citations (3)
| Title |
|---|
| MARK D. PELUSI: "Applications of Highly-Nonlinear Chalcogenide Glass Devices Tailored for High-Speed All-Optical Signal Processing", 《IEEE JOURNAL OF SELECTED TOPICS IN QUANTUM ELECTRONICS》 * |
| SY DAT LE: "Efficient four-wave mixing in an ultra-highly nonlinear suspended-core chalcogenide As38Se62 fiber", 《 OPTICS EXPRESS》 * |
| 徐亚希: "硫系光纤中基于四波混频的波长转换研究", 《光通信技术》 * |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108631871A (en) * | 2018-03-16 | 2018-10-09 | 浙江工商职业技术学院 | All-optical wavelength converter and method based on sulphur system fiber cross phase modulation |
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