CN101296050A - Optical network device and light wave processing method - Google Patents
Optical network device and light wave processing method Download PDFInfo
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Abstract
The invention discloses an optical network unit which comprises a wave separator used for decomposing service light waves from different directions of an optical transport network according to the characteristics of the wave separator to obtain the decomposed service light waves, a large-scale optical switch array unit used for receiving the decomposed service light waves sent by the wave separator and sending the decomposed service light waves to fixed wavelength transducers in corresponding service transmission directions, fixed wavelength transducers used for transforming the wavelength of the received service light waves and sending the wavelength transformed service light waves to combiners in the corresponding service transmission directions, and the combiners used for combining the received wavelength transformed service light waves and sending the received wavelength transformed service light waves after combination. The invention also discloses a processing method of light waves, by adopting the method and device of the invention, the light waves can be transmitted in an optical network without hindrance.
Description
Technical field
The present invention relates to optical communication field, be meant especially a kind of in dense wave division multipurpose (DWDM) system optical network apparatus and the processing method of light wave.
Background technology
Along with development of Communication Technique, be the speed fast development of the data service of representative with IP with explosion type, therefore, network service has had bigger demand for data transfer bandwidth.Along with the development of Fibre Optical Communication Technology, the DWDM broad application provides abundant bandwidth resources for network service, and the light networking has become the trend of communication network development.
At present, using more network switching node equipment in optical-fiber network has: with optical cross connect (OXC, Optical Cross Connects) optical network apparatus of technique construction and with wavelength-selective switches (WSS, Wavelength Selective Switch) the multidimensional Reconfigurable Optical Add/drop Multiplexer (ROADM, Reconfigurable Optical Add Drop Multiplexer) of module formation.Can realize that by these optical network apparatus big capacity, multi-service are merged, intelligentized optical transport network.
For OXC equipment, its core devices is an optical switch matrix, and optical switch matrix is used to finish the assignment to the service wavelength transmission direction.At present the light of the better performances matrix that opens the light is the mechanical optical switch matrix, but that it is difficult to is integrated on a large scale, is difficult to be competent at for large-scale optical transport network; The solid guide optical switch, as thermo-optical switch etc., though be easy to integratedly, switching speed is very fast, and it is bigger to insert loss, and polarization dependent behavior, isolation all are not so good as mechanical optical switch.For the ROADM based on the WSS module, its core devices is WSS, and it connects complexity and maintenance cost height with respect to optical switch matrix cost costliness, installation fee with high, internal port.
In addition, the optical transport network based on OXC and ROADM also exists such problem: professional light wave can not be realized the problem of complete without hindrance transmission in optical switch matrix.Without hindrance transmission is meant that arbitrary input of optical switch matrix can output to light wave any output at any time.This is because itself can not realize the variation of professional optical wavelength this optical network apparatus, exports from a direction so the two or more professional light wave of carrying different business, identical wavelength can not synthesize one road professional light wave.
Summary of the invention
In view of this, main purpose of the present invention is to provide the processing method of a kind of optical network apparatus and light wave, based on this apparatus and method, can solve the problem that existing optical network apparatus can not be realized the without hindrance transmission of professional light wave.
For achieving the above object, technical scheme of the present invention is achieved in that
The invention provides a kind of optical network apparatus, this device comprises channel-splitting filter, extensive optical switch matrix unit, fixed wave length transducer and wave multiplexer, wherein,
Described channel-splitting filter is used for according to the characteristic of channel-splitting filter the professional light wave of the different directions received being decomposed the professional light wave after obtaining decomposing;
Described extensive optical switch matrix unit is used to receive the professional light wave after the described decomposition, and according to the professional transmission direction of professional light wave, gives fixed wave length transducer in the corresponding service transmission direction with the professional light wave transmissions after the described decomposition;
Described fixed wave length transducer is used for the professional light wave that receives is carried out the conversion of wavelength, and gives wave multiplexer in the corresponding service transmission direction with the professional light wave transmissions behind the conversion wavelength;
Described wave multiplexer be used for the professional light wave behind the described conversion wavelength that receives is closed ripple, and the professional light wave transmissions that will close behind the ripple is gone out.
Described channel-splitting filter comprises a sub-channel-splitting filter at least, and a described sub-channel-splitting filter receives only the professional light wave from a direction, and sub-channel-splitting filter will be decomposed into the professional light wave that the multichannel wavelength does not wait from one road professional light wave of a direction.
Described extensive optical switch matrix unit comprises control module, data processing module, driver module and light wave transmissions module, wherein,
Described control module is used for the professional transmission direction according to professional light wave, the transmission channel data parameters of configuration service light wave in extensive optical switch matrix unit;
Described data processing module is used for described transmission channel data parameters is carried out analyzing and processing, obtains the transmission channel information after the analyzing and processing;
Described driver module is used for according to described transmission channel information, sends and sets up the transmission channel order;
Described light wave transmissions module is used for setting up the transmission channel order according to described, sets up the respective transmissions passage of professional light wave.
Described light wave transmissions module comprises input port submodule, light wave processing sub and output port submodule, wherein,
Described input port submodule is used to receive the professional light wave after the decomposition that described channel-splitting filter transmits;
Described light wave processing sub, be used to receive that described driver module sends sets up the transmission channel order, and set up the transmission channel order according to described, with the professional light wave that the input port in the input port submodule receives, be transferred on the output port in the corresponding output port submodule;
Described output port submodule, the professional light wave transmissions that is used for receiving goes out to the fixed wave length transducer in the corresponding business transmission direction.
Described fixed wave length transducer comprises demodulator and modulator, wherein,
Described demodulator is used to receive the professional light wave that extensive optical switch matrix unit transmits, and described professional light wave is carried out demodulation, obtains the business information of carrying in the professional light wave;
Described modulator is used to generate the carrier wave of setting wavelength; Described business information is loaded on the described carrier wave, generates new professional light wave, and the new professional light wave of described generation is sent to wave multiplexer.
Described fixed wave length transducer comprises a sub-fixed wave length transducer at least, the output port of a described corresponding extensive optical switch matrix unit of sub-fixed wave length transducer, can only receive the sub-channel-splitting filter of one tunnel described process and decompose, and the professional light wave that transmits by extensive optical switch matrix unit.
Described wave multiplexer comprises a sub-wave multiplexer at least, the outbound course of a described corresponding professional light wave of sub-wave multiplexer.
The present invention also provides a kind of processing method of light wave, and this method comprises:
A, channel-splitting filter decompose according to the professional light wave of self-characteristic to the different directions received, and the professional light wave after will decomposing offers extensive optical switch matrix unit;
B, described extensive optical switch matrix unit be according to the professional transmission direction of professional light wave, gives fixed wave length transducer in the corresponding service transmission direction with the professional light wave transmissions after the described decomposition;
C, fixed wave length transducer carry out the conversion of wavelength to the professional light wave that receives, and give wave multiplexer in the corresponding service transmission direction with the professional light wave transmissions behind the conversion wavelength;
D, described wave multiplexer close ripple to the professional light wave that receives, and the professional light wave transmissions that will close behind the ripple is gone out.
Described step b further comprises:
According to the professional transmission direction of professional light wave, the transmission channel data parameters of configuration service light wave in extensive optical switch matrix unit;
Described transmission channel data parameters is carried out analyzing and processing, obtain the transmission channel information after the analyzing and processing;
According to described transmission channel information, set up the respective transmissions passage of professional light wave.
Described light wave transmissions module is set up the respective transmissions passage of professional light wave, further comprises:
Receive the professional light wave after the decomposition that described channel-splitting filter transmits;
Set up the transmission channel order according to described,, be transferred on the corresponding output end mouth the professional light wave after the described decomposition;
The professional light wave transmissions that described output port will receive goes out to the fixed wave length transducer in the corresponding business transmission direction.
Described step c further comprises:
Professional light wave from extensive optical switch matrix unit is carried out demodulation, obtain the business information of carrying in the professional light wave;
Generate the carrier wave of setting wavelength, described business information is loaded on the described carrier wave, generate new professional light wave, and the new professional light wave of described generation is sent to wave multiplexer.
Optical network apparatus of the present invention has used extensive optical switch matrix unit, particularly based on the extensive optical switch matrix unit of MEMS, the characteristics that its integrated level is high are applicable to and make up large-scale optical transport network, can satisfy the very large situation of light conveys traffic, and its good reliability is convenient to safeguard; Optical network apparatus of the present invention has also used the fixed wave length transducer, can change the wavelength of professional light wave, simultaneously since the fixed wave length transducer carrier wave of the bearer service light wave received is replaced, promptly carry the business information of former professional light wave with the new carrier wave of required wavelength, form new professional light wave, like this, just can solve because the attenuated optical signal that professional light wave causes in the transmission course of optical transport network, cause the problem of light signal deterioration, can improve the signal quality of professional light wave; In addition, optical network apparatus of the present invention, based on the extensive optical switch matrix unit of MEMS and being used in combination of fixed wave length transducer, extensive optical switch matrix unit based on MEMS provides more input and output direction for professional light wave, the fixed wave length transducer can carry out conversion to the wavelength of professional light wave, so, can realize the professional light wave of any direction, through behind the wavelength conversion, constantly arbitrarily, from direction output arbitrarily, like this, just can finish the without hindrance transmission of professional light wave in optical transport network.
Description of drawings
Fig. 1 is the structural relation schematic diagram of optical network apparatus of the present invention;
Fig. 2 is the structural representation of optical network apparatus in the example one of the present invention;
Fig. 3 is the structural representation of optical network apparatus in the example two of the present invention;
Fig. 4 is the process flow schematic diagram of light wave of the present invention.
Embodiment
The technical solution of the present invention is further elaborated below in conjunction with the drawings and specific embodiments.
The optical network apparatus that the present invention proposes, used extensive optical switch matrix unit, particularly based on the extensive optical switch matrix unit of MEMS (micro electro mechanical system) (MEMS, Micro Electronic Mechanical System) technology, this device has also used the fixed wave length transducer.Professional light wave from optical transport network, carry out partial wave through channel-splitting filter, after extensive optical switch matrix unit carries out the assignment of outbound course according to the professional transmission direction of professional light wave to the professional light wave after decomposing, the professional light wave of output carries out the conversion of wavelength through the fixed wave length transducer, at last, export after closing ripple by professional transmission direction by wave multiplexer.
Below, by specific embodiment the solution of the present invention is described.
Figure 1 shows that the structural relation schematic diagram of optical network apparatus of the present invention.
Channel-splitting filter 101 is used for according to the characteristic of channel-splitting filter the professional light wave of the different directions received being decomposed the professional light wave after obtaining decomposing.
Among the present invention, channel-splitting filter 101 comprises a sub-channel-splitting filter at least.In the planning of optical-fiber network, several different topological structures are arranged, such as the network topology structure of 4 dimensions, the network topology structure of 8 dimensions or the network topology structure of 16 dimensions etc.Generally speaking, the network topology structure of 4 dimensions is applicable to the professional transmission of small-scale light, and the network topology structure of 8 peacekeepings, 16 dimensions is applicable to the professional transmission of large-scale light.Be suitable for large-scale optical-fiber network at device proposed by the invention, so the residing optical-fiber network environment of device of the present invention is 8 dimensions, 16 dimension or more complicated network topology structures.If the network topology structure of 8 dimensions, the professional light wave that transmits from optical transport network can be divided into 8 directions so, 8 road light waves, the corresponding sub-channel-splitting filter of direction; In like manner, if the network topology structure of 16 dimensions, the professional light wave that transmits from optical transport network can be divided into 16 directions so, the corresponding sub-channel-splitting filter of direction.
Channel-splitting filter carries out partial wave to it after receiving professional light wave, and concrete is divided into the light wave that a plurality of wavelength do not wait with professional light wave.Professional light wave is carried out the characteristic of partial wave according to the channel-splitting filter that is adopted in the device, such as, in the optical transport network, what the main optical path employing was more is the channel-splitting filter of C-band 40 ripples at present, after so professional light wave being carried out partial wave, can generate the new professional light wave that 40 road wavelength do not wait.Except the channel-splitting filter of C-band 40 ripples, also has the channel-splitting filter of C-band 80 ripples, L-band 40 ripples etc.After the channel-splitting filter of concrete C-band 40 ripples carried out partial wave to one road professional light wave, the concrete parameter of the new light wave that is generated was as shown in table 1.
| Sequence number | Centre frequency (THZ) | Wavelength (NM) |
| 1 | 192.1 | 1560.61 |
| 2 | 192.2 | 1559.79 |
| 3 | 192.3 | 1558.98 |
| 4 | 192.4 | 1558.17 |
| 5 | 192.5 | 1557.36 |
| 6 | 192.6 | 1556.55 |
| 7 | 192.7 | 1555.75 |
| 8 | 192.8 | 1554.94 |
| 9 | 192.9 | 1554.13 |
| 10 | 193.0 | 1553.33 |
| 11 | 193.1 | 1552.52 |
| 12 | 193.2 | 1551.72 |
| 13 | 193.3 | 1550.92 |
| 14 | 193.4 | 1550.12 |
| 15 | 193.5 | 1549.32 |
| 16 | 193.6 | 1548.51 |
| 17 | 193.7 | 1547.72 |
| 18 | 193.8 | 1546.92 |
| 19 | 193.9 | 1546.12 |
| 20 | 194.0 | 1545.32 |
| 21 | 194.1 | 1544.53 |
| 22 | 194.2 | 1543.73 |
| 23 | 194.3 | 1542.94 |
| 24 | 194.4 | 1542.14 |
| 25 | 194.5 | 1541.35 |
| 26 | 194.6 | 1540.56 |
| 27 | 194.7 | 1539.77 |
| 28 | 194.8 | 1538.98 |
| 29 | 194.9 | 1538.19 |
| 30 | 195.0 | 1537.40 |
| 31 | 195.1 | 1536.61 |
| 32 | 195.2 | 1535.82 |
| 33 | 195.3 | 1535.04 |
| 34 | 195.4 | 1534.25 |
| 35 | 195.5 | 1533.47 |
| 36 | 195.6 | 1532.68 |
| 37 | 195.7 | 1531.90 |
| 38 | 195.8 | 1531.12 |
| 39 | 195.9 | 1530.33 |
| 40 | 196.0 | 1529.55 |
Table 1
Extensive optical switch matrix unit 102 is used to receive the professional light wave after the decomposition, and according to the professional transmission direction of professional light wave, gives fixed wave length transducer 110 in the corresponding service transmission direction with the professional light wave transmissions after decomposing.Among the present invention, preferably can be by realizing based on the extensive optical switch matrix unit of MEMS (micro electro mechanical system) (MEMS, MicroElectronic Mechanical System) technology.The extensive optical switch matrix of MEMS unit is easy to integratedly, and integrated level height is suitable for large-scale optical transport network.With regard to scale, at present, adopt the mems optical switch matrix of 2D structure to have 64 * 64, adopt the mems optical switch matrix of 3D structure that thousands of port numbers are also arranged, as the optical switch matrix of 1152 * 1152 scales.
Wherein the professional transmission direction of professional light wave was determined by the user before professional light wave is transmitted according to service needed.
The effect of extensive optical switch matrix unit 102 is assignments of finishing professional light wave, and extensive optical switch matrix unit 102 comprises: control module 103, data processing module 104, driver module 105 and light wave transmissions module 106, and concrete,
By the professional transmission direction of control module 103 according to professional light wave, the transmission channel data parameters of configuration service light wave in extensive optical switch matrix unit 102; Data processing module 104 according to the transmission channel data parameters from control module 103, carries out analyzing and processing, obtains transmission channel information; Driver module 105 according to the transmission channel information from data processing module 104, sends and sets up the transmission channel order to light wave transmissions module 106; Light wave transmissions module 106 is used for setting up the respective transmissions passage of professional light wave according to setting up the transmission channel order.Preferably, data processing module 104 comprises a microprocessor, and this microprocessor can carry out analyzing and processing to the transmission channel data parameters; Driver module 105 comprises a chip for driving, and this chip for driving can drive light wave transmissions module 106 according to transmission channel information.
Concrete, light wave processing sub 108 in the light wave transmissions module 106 receive from driver module 105 set up the transmission channel order after, with input port submodule 107 receive from the professional transmission direction of the professional light wave of channel-splitting filter 101 according to this business light wave, be transferred in the output port submodule 109 on the corresponding output port, be transferred to fixed wave length transducer 110 by output port submodule 109.Preferably, light wave processing sub 108 comprises a small minute surface, and the professional light wave that input port submodule 107 can be received by this small minute surface according to professional transmission direction, is transferred in the output port submodule 109 on the corresponding output port.
Fixed wave length transducer 110 is used for the professional light wave that receives is carried out the conversion of wavelength according to setting wavelength, and gives wave multiplexer in the corresponding service transmission direction with the professional light wave transmissions behind the conversion wavelength.
Dispose the setting wavelength in the fixed wave length transducer 110, convert the professional light wave of the various wavelength received to the unified professional light wave of setting wavelength and export.
The effect of fixed wave length transducer 110 is the wavelength that change professional light wave, be specially: the professional light wave from extensive optical switch matrix unit 102 that 111 pairs of the demodulators in the fixed wave length transducer 110 receive carries out demodulation, professional light wave is concrete business information by the carriers carry of any wavelength, light wave is separated timing here, business information is wherein stored, the carrier wave that carried this business information is originally abandoned; Modulator 112 can generate the carrier wave of new setting wavelength, and the business information that modulator 112 demodulates demodulator 111 is re-loaded on the new carrier wave, generates new professional light wave.Fixed wave length transducer 110 comprises at least one sub-fixed wave length transducer.A sub-fixed wave length transducer can only be converted into the professional light wave of setting wavelength for the professional light wave that receives.This setting wavelength is determined according to the partial wave situation of 101 pairs of professional light waves of channel-splitting filter, as the sub-channel-splitting filter of C-band 40 ripples the professional light wave of a direction is divided into 40 professional light waves that wavelength does not wait, so on outbound course, corresponding should have 40 sub-fixed wave length transducers, and the setting wavelength of these 40 sub-fixed wave length transducers is respectively 1 to No. 40 wavelength as shown in table 1.
Wave multiplexer 113 be used for the professional light wave behind the conversion wavelength that receives is closed ripple, and the professional light wave transmissions that will close behind the ripple is gone out.
After wave multiplexer 113 receives professional light wave from fixed wave length transducer 110, professional light wave is closed ripple and transfers out.Wave multiplexer 113 comprises a sub-wave multiplexer at least, wherein, a professional outbound course of a corresponding professional light wave of sub-wave multiplexer, a sub-wave multiplexer will close ripple from the professional light wave of a plurality of sub-fixed wave length transducers, output to then on the corresponding business outbound course.
Generally speaking, if what channel-splitting filter 101 used is the channel-splitting filter that C-band 40 closes ripple, wave multiplexer 113 is applicable to that also C-band 40 closes ripple so, the corresponding direction of sub-wave multiplexer, concrete, because sub-channel-splitting filter 113 is divided into the different light wave of multichannel wavelength with one road light wave of a direction, behind extensive optical switch matrix unit 102 and corresponding sub-fixed wave length transducer 110, light wave after these are decomposed is through behind the wavelength conversion, can be transferred in the sub-wave multiplexer 113 on its professional outbound course, the multichannel light wave that sub-wave multiplexer 113 can not wait these wavelength synthesizes one road professional light wave again, sends on this business light wave corresponding service outbound course.
Figure 2 shows that the structural representation of optical network apparatus in the example one of the present invention.
The topological structure of supposing the residing optical-fiber network of this optical network apparatus is the M dimension, and for this device, the input direction of professional light wave can be divided into M direction so; Sub-channel-splitting filter 201 is applicable to C-band N ripple, and the professional light wave on the direction 1 is broken down into the new professional light wave that N road wavelength does not wait through behind the sub-channel-splitting filter 201 so; For extensive optical switch matrix unit 202, the one road corresponding input port 203 of professional light wave and output port 204, so, the input of this extensive optical switch matrix unit, output port should have M * N respectively, and then the scale of this extensive optical switch matrix unit is (M * N) * (M * N); Professional light wave is after output port 204 outputs of extensive optical switch matrix unit 202, enter sub-fixed wave length transducer 205, because the output port and the sub-fixed wave length transducer 205 of extensive optical switch matrix unit 202 are to concern one to one, handle one road professional light wave with this, so the quantity of sub-fixed wave length transducer is M * N; Be transferred in the corresponding sub-wave multiplexer 206 according to its professional transmission direction at last by the professional light wave of the multichannel behind the partial wave, be transferred in the corresponding business transmission direction after closing ripple via sub-wave multiplexer 206, this shows, the quantity of sub-wave multiplexer is identical with the quantity of sub-channel-splitting filter, the corresponding professional transmission direction of sub-wave multiplexer.The setting wavelength of professional light wave being imported each sub-fixed wave length transducer of same sub-wave multiplexer has nothing in common with each other.
To the processing of optical network apparatus of the present invention for professional light wave be described by a specific embodiment below.
Figure 3 shows that the structural representation of optical network apparatus in the example two of the present invention.
Preferably, use extensive optical switch matrix unit in the present embodiment, can be referred to as the extensive optical switch matrix of MEMS unit based on MEMS.
Suppose that the residing optical-fiber network environment of this optical network apparatus is the optical-fiber network topological structure of 8 dimensions, so for this device, professional light wave is from 8 directions, be respectively direction 1 to direction 8, the corresponding sub-channel-splitting filter 301 of direction, this sub-channel-splitting filter 301 be C-band 40 wave separater devices, after the professional light wave on direction passes through sub-channel-splitting filter 301 so, be broken down into the 40 road professional light waves that wavelength does not wait, the wavelength of these 40 road professional light waves is respectively λ
1, λ
2... λ
40, the scale of the extensive optical switch matrix of MEMS unit 302 is (8 * 40) * (8 * 40)=302 * 320 so, promptly there are 320 input ports and 320 output ports in the extensive optical switch matrix of this MEMS unit 302; Professional light wave enters in the matrix through the input port of the extensive optical switch matrix of MEMS unit 302.
In the assignment of the 302 pairs of professional light waves in the extensive optical switch matrix of MEMS unit, preferably, can realize by following mode.
Preferably, come the transmission channel data parameters of configuration service light wave in the extensive optical switch matrix of MEMS unit 302 by a webmaster, this data parameters can comprise information such as the input direction, input port, output port, outbound course of this business light wave.For example, being decomposed into wavelength from the professional light wave of direction 1 via channel-splitting filter 301 is λ
1, λ
2... λ
4040 road professional light waves, its medium wavelength is λ
1Professional light wave enter matrix through input port 1, finally need be from direction 2 outputs, the webmaster Control Software can dispose the transmission channel data parameters of this business light wave so, be used to refer to the output port of this business light wave, for example, can make this business light wave from output port 41 outputs, the wavelength of concrete professional light wave and input port and output port do not have definite corresponding relation, as long as can be from final outbound course output by this output port, this shows, be λ from the wavelength of direction 1
1Professional light wave can be from output port 41 to output port any one port output 80.So for from direction 1, need be λ from the wavelength of direction 2 output
1Professional light wave, its transmission channel data parameters in the extensive optical switch matrix of MEMS unit 302 can comprise following information: from direction 1, IN1, OUT41, to direction 2.
Preferably, can comprise the transmission channel data parameters that a microprocessor is used for handling the professional light wave of network management configuration in the extensive optical switch matrix of the MEMS unit 302, obtain transmission channel information; According to this transmission channel information,, set up transmission channel by a chip for driving.Preferably, the corresponding small minute surface that is subjected to electrostatic control of each input port of the extensive optical switch matrix of MEMS unit 302, rotation by this small minute surface can reflex to the professional light wave of input port input on the corresponding output port, is exported by output port; The anglec of rotation of small minute surface has determined the outbound course of professional light wave, and the anglec of rotation of small minute surface is by being subjected to electrostatic influence.Microprocessor can pass through the transmission channel data parameters, calculates the anglec of rotation of the needed small minute surface of this business light wave of transmission; Microprocessor internal can comprise a mapping table, and this mapping table can reflect the anglec of rotation and the electrostatic induced current of this small minute surface of control or the relation of voltage of small minute surface; According to this mapping table, can generate the rotation information of small minute surface.After microprocessor is analyzed the transmission channel data parameters, obtain transmission channel information, this information comprises the rotation information of small minute surface, microprocessor sends to chip for driving with this transmission channel information, chip for driving is according to transmission channel information, particularly the rotation information of small minute surface drives small minute surface, and it is corresponding to the position that it is rotated to according to the anglec of rotation, and the professional light wave of input port is reflexed on the corresponding output port.For example, the transmission channel data parameters comprises following information: from direction 1, IN1, OUT41, to direction 2, so, calculating the angle that the small minute surface of input port 1 correspondence need rotate by microprocessor is α, from the mapping table of the anglec of rotation and electrostatic induced current or voltage, can draw, the current value that makes the electric current of this small minute surface rotation alpha angle is i, and microprocessor sends to chip for driving with these transmission channel information so; Chip for driving is sent the electric current that current value is i according to these information, to drive small minute surface rotation alpha angle.So, from direction 1, finally need be λ from the wavelength of direction 2 output
1Professional light wave can be from output port 41 output.
If have a wavelength from direction 2 from input port 41 inputs according to the professional transmission direction of professional light wave this moment is λ
1Professional light wave also need from direction 2 output, for this kind situation, existing OXC equipment and ROADM equipment can not carry out the conversion of wavelength to professional light wave, so the professional light wave of identical wavelength can not be closed ripple by a wave multiplexer, become the output of one road light wave, therefore professional light wave can not be from direction output arbitrarily.In the present invention, still can will should assign in the output port 42 by the business light wave, like this, be λ from the wavelength of direction 1
1Professional light wave be transferred in the corresponding sub-fixed wave length transducer 303 through output port 41, being transformed to wavelength is λ
1Professional light wave, be λ from the wavelength of direction 2
1Professional light wave be transferred in the corresponding sub-fixed wave length transducer 303 through output port 42, being transformed to wavelength is λ
2Professional light wave, after the professional light wave of this two-way closed ripple by the sub-wave multiplexer 304 of direction 2 at last, from direction 2 outputs, two-way just can have been exported from the professional transmission direction of any appointment from the professional light wave of different directions like this.
It is pointed out that sub-fixed wave length transducer 303 can only be converted to the light wave that receives the light wave of fixed wave length.As fruit channel-splitting filter 301 is C-band 40 wave separater devices, and the sub-fixed wave length transducer on direction has 40 so, and the setting wavelength in these 40 sub-fixed wave length transducers is respectively 1 to No. 40 wavelength in the table 1.Associative list 1 and Fig. 3, the setting wavelength of the sub-fixed wave length transducer on the direction 2 is respectively λ
1, λ
2... λ
40, i.e. 1560.61NM, 1559.79NM......1529.55NM.Suppose that it is λ that the wavelength from direction 2 is arranged
1, promptly the professional light wave of 1560.61NM need be from direction 2 output, so can be with any one output port output that should the business light wave assigns on the direction 2, if by output port 42 outputs, be λ through setting wavelength
2Sub-fixed wave length transducer 303 after, the wavelength conversion of this business light wave is λ
2, i.e. 1559.79NM; Wavelength from direction 1 is λ
3It is the professional light wave of 1558.98NM, export from direction 2 according to professional transmission direction also needs, but port 42 has been used, can will should assign to any one output port output except that 42 ports on the direction 2 by the business light wave so, if then, be λ through setting wavelength by output port 41 outputs
1Sub-fixed wave length transducer 303 after, be λ behind the wavelength conversion of this business light wave
1, i.e. 1560.61NM.
This two-way is through after the wavelength change so, and wavelength is respectively λ
1And λ
2Professional light wave close ripple via the sub-wave multiplexer 304 on the direction 2 at last, become one road light wave from direction 2 output.
Fig. 4 is the process flow schematic diagram of light wave of the present invention.
This step further comprises, the professional transmission direction of the professional light wave of foundation, the transmission channel data parameters of configuration service light wave in extensive optical switch matrix unit; The transmission channel data parameters is carried out analyzing and processing, obtain the transmission channel information after the analyzing and processing; According to transmission channel information, set up the respective transmissions passage of professional light wave.
Wherein, according to transmission channel information, the respective transmissions passage of setting up professional light wave further comprises: receive the professional light wave after decomposing; According to setting up the transmission channel order, the professional light wave with after decomposing is transferred on the corresponding output end mouth; The professional light wave transmissions that output port will receive goes out to the fixed wave length transducer in the corresponding business transmission direction.
This step further comprises: the professional light wave from extensive optical switch matrix unit is carried out demodulation, obtain the business information of carrying in the professional light wave; Generate the carrier wave of setting wavelength, business information is loaded on the new carrier wave, generate new professional light wave, and the new professional light wave that will generate sends to wave multiplexer.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (11)
1, a kind of optical network apparatus is characterized in that, this device comprises channel-splitting filter, extensive optical switch matrix unit, fixed wave length transducer and wave multiplexer, wherein,
Described channel-splitting filter is used for according to the characteristic of channel-splitting filter the professional light wave of the different directions received being decomposed the professional light wave after obtaining decomposing;
Described extensive optical switch matrix unit is used to receive the professional light wave after the described decomposition, and according to the professional transmission direction of professional light wave, gives fixed wave length transducer in the corresponding service transmission direction with the professional light wave transmissions after the described decomposition;
Described fixed wave length transducer is used for the professional light wave that receives is carried out the conversion of wavelength, and gives wave multiplexer in the corresponding service transmission direction with the professional light wave transmissions behind the conversion wavelength;
Described wave multiplexer be used for the professional light wave behind the described conversion wavelength that receives is closed ripple, and the professional light wave transmissions that will close behind the ripple is gone out.
2, according to the described optical network apparatus of claim 1, it is characterized in that, described channel-splitting filter comprises a sub-channel-splitting filter at least, a described sub-channel-splitting filter receives only the professional light wave from a direction, and sub-channel-splitting filter will be decomposed into the professional light wave that the multichannel wavelength does not wait from one road professional light wave of a direction.
According to the described optical network apparatus of claim 1, it is characterized in that 3, described extensive optical switch matrix unit comprises control module, data processing module, driver module and light wave transmissions module, wherein,
Described control module is used for the professional transmission direction according to professional light wave, the transmission channel data parameters of configuration service light wave in extensive optical switch matrix unit;
Described data processing module is used for described transmission channel data parameters is carried out analyzing and processing, obtains the transmission channel information after the analyzing and processing;
Described driver module is used for according to described transmission channel information, sends and sets up the transmission channel order;
Described light wave transmissions module is used for setting up the transmission channel order according to described, sets up the respective transmissions passage of professional light wave.
According to the described optical network apparatus of claim 3, it is characterized in that 4, described light wave transmissions module comprises input port submodule, light wave processing sub and output port submodule, wherein,
Described input port submodule is used to receive the professional light wave after the decomposition that described channel-splitting filter transmits;
Described light wave processing sub, be used to receive that described driver module sends sets up the transmission channel order, and set up the transmission channel order according to described, with the professional light wave that the input port in the input port submodule receives, be transferred on the output port in the corresponding output port submodule;
Described output port submodule, the professional light wave transmissions that is used for receiving goes out to the fixed wave length transducer in the corresponding business transmission direction.
According to the arbitrary described optical network apparatus of claim 1 to 4, it is characterized in that 5, described fixed wave length transducer comprises demodulator and modulator, wherein,
Described demodulator is used to receive the professional light wave that extensive optical switch matrix unit transmits, and described professional light wave is carried out demodulation, obtains the business information of carrying in the professional light wave;
Described modulator is used to generate the carrier wave of setting wavelength; Described business information is loaded on the described carrier wave, generates new professional light wave, and the new professional light wave of described generation is sent to wave multiplexer.
6, according to claim 1 or 5 described optical network apparatus, it is characterized in that, described fixed wave length transducer comprises a sub-fixed wave length transducer at least, the output port of a described corresponding extensive optical switch matrix unit of sub-fixed wave length transducer, can only receive the sub-channel-splitting filter of one tunnel described process and decompose, and the professional light wave that transmits by extensive optical switch matrix unit.
According to the described optical network apparatus of claim 1, it is characterized in that 7, described wave multiplexer comprises a sub-wave multiplexer at least, the outbound course of a described corresponding professional light wave of sub-wave multiplexer.
8, a kind of processing method of light wave is characterized in that, this method comprises:
A, channel-splitting filter decompose according to the professional light wave of self-characteristic to the different directions received, and the professional light wave after will decomposing offers extensive optical switch matrix unit;
B, described extensive optical switch matrix unit be according to the professional transmission direction of professional light wave, gives fixed wave length transducer in the corresponding service transmission direction with the professional light wave transmissions after the described decomposition;
C, fixed wave length transducer carry out the conversion of wavelength to the professional light wave that receives, and give wave multiplexer in the corresponding service transmission direction with the professional light wave transmissions behind the conversion wavelength;
D, described wave multiplexer close ripple to the professional light wave that receives, and the professional light wave transmissions that will close behind the ripple is gone out.
9, the processing method of described light wave according to Claim 8 is characterized in that described step b further comprises:
According to the professional transmission direction of professional light wave, the transmission channel data parameters of configuration service light wave in extensive optical switch matrix unit;
Described transmission channel data parameters is carried out analyzing and processing, obtain the transmission channel information after the analyzing and processing;
According to described transmission channel information, set up the respective transmissions passage of professional light wave.
According to the processing method of the described light wave of claim 9, it is characterized in that 10, described light wave transmissions module is set up the respective transmissions passage of professional light wave, further comprises:
Receive the professional light wave after the decomposition that described channel-splitting filter transmits;
Set up the transmission channel order according to described,, be transferred on the corresponding output end mouth the professional light wave after the described decomposition;
The professional light wave transmissions that described output port will receive goes out to the fixed wave length transducer in the corresponding business transmission direction.
11, the processing method of any described light wave in 10 according to Claim 8 is characterized in that described step c further comprises:
Professional light wave from extensive optical switch matrix unit is carried out demodulation, obtain the business information of carrying in the professional light wave;
Generate the carrier wave of setting wavelength, described business information is loaded on the described carrier wave, generate new professional light wave, and the new professional light wave of described generation is sent to wave multiplexer.
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| CNA2008101261925A CN101296050A (en) | 2008-06-27 | 2008-06-27 | Optical network device and light wave processing method |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010121512A1 (en) * | 2009-04-21 | 2010-10-28 | 华为技术有限公司 | Data communication method, data communication system and related apparatus |
| CN102725980A (en) * | 2009-12-03 | 2012-10-10 | 诺基亚西门子通信公司 | Method for processing traffic in an optical network and optical network component |
| WO2017215380A1 (en) * | 2016-06-16 | 2017-12-21 | 中兴通讯股份有限公司 | Service adjustment method and apparatus for uplink/downlin of service site |
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2008
- 2008-06-27 CN CNA2008101261925A patent/CN101296050A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2010121512A1 (en) * | 2009-04-21 | 2010-10-28 | 华为技术有限公司 | Data communication method, data communication system and related apparatus |
| CN102725980A (en) * | 2009-12-03 | 2012-10-10 | 诺基亚西门子通信公司 | Method for processing traffic in an optical network and optical network component |
| WO2017215380A1 (en) * | 2016-06-16 | 2017-12-21 | 中兴通讯股份有限公司 | Service adjustment method and apparatus for uplink/downlin of service site |
| CN107517115A (en) * | 2016-06-16 | 2017-12-26 | 中兴通讯股份有限公司 | The business reorganization method and device on road above and below a kind of business site |
| CN107517115B (en) * | 2016-06-16 | 2021-11-12 | 中兴通讯股份有限公司 | Method and device for adjusting uplink and downlink services of service site |
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