CN101916960A - Device and method for adjusting multiband laser - Google Patents
Device and method for adjusting multiband laser Download PDFInfo
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- CN101916960A CN101916960A CN 201010243558 CN201010243558A CN101916960A CN 101916960 A CN101916960 A CN 101916960A CN 201010243558 CN201010243558 CN 201010243558 CN 201010243558 A CN201010243558 A CN 201010243558A CN 101916960 A CN101916960 A CN 101916960A
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Abstract
The invention discloses a device and a method for adjusting a multiband laser, which are used for adjusting the wave band of the laser. The device for adjusting the multiband laser comprises a wave band selector, a singlechip, a first input control circuit, a thermoelectric cooling drive chip, an output control circuit, a second input control circuit and a parameter control circuit, wherein the wave band selector is electrically connected with the singlechip which is electrically connected with the first input control circuit and the second input control circuit; the first input control circuit is electrically connected with the thermoelectric cooling drive chip; the thermoelectric cooling drive chip is electrically connected with the output control circuit; the second input control circuit is electrically connected with the parameter control circuit; and the parameter control circuit and the output control circuit are respectively connected with the laser and are used for adjusting the wavelength, the wave band and the parameters of the laser. Therefore, the invention can achieve the effect of allowing the laser to work in a C waveband and C+ wave band and improve the transmission capacity without increasing the laser, is simple and convenient in operation and saves the cost.
Description
Technical field
Relevant a kind of DWDM (the Dense Wavelength Division Multiplexing of the present invention, dense wave division multipurpose) adjusting device of laser and control method in the system refer in particular to a kind of laser works that can make in multiwave adjusting device and control method.
Background technology
At present, because the universal and endless bandwidth demand of telecom operation complex building (Telecom Carrier Hotel), metropolitan area network very likely becomes another trump card of DWDM technology and uses.Present DWDM communication system, not only require wavelength to satisfy ITU-T (International Telecommunication Union-Telecommunication Standardization Sector, International Telecommunications Union's telecommunication standards group) standard also will expand capacity.The dwdm system of existing 10Gb/s C band (C-band) all is that the wavelength interval is 100GHz mostly, if accomplish C+band, needs to change corresponding laser, and inconvenience really in the operation, and increase cost.Simultaneously,, need the compression wavelength interval, also increased cost undoubtedly in order to increase the transmission capacity of DWDM.
Summary of the invention
In view of this, main purpose of the present invention is to provide a kind of adjusting device and control method that makes laser works in C-band and C+ wave band.
For achieving the above object, the invention provides a kind of adjusting device of multiband laser, it is used to adjust the wave band of laser, the adjusting device of described multiband laser includes band selector, single-chip microcomputer, first input control circuit, the thermoelectric cooling chip for driving, output control circuit, second input control circuit and parameter control circuit, band selector is electrically connected single-chip microcomputer, this band selector is used for according to user's request wave band being selected, single-chip microcomputer is electrically connected first input control circuit and second input control circuit, first input control circuit is electrically connected thermoelectric refrigeration chip for driving, the thermoelectric cooling chip for driving is electrically connected output control circuit, second input control circuit is electrically connected parameter control circuit, parameter control circuit all is electrically connected laser with output control circuit, regulates in order to wavelength range and parameter to laser.
Preferably, be provided with wave detector between laser and the single-chip microcomputer, this wave detector is electrically connected with single-chip microcomputer.
Preferably, output control circuit is electrically connected single-chip microcomputer by a supervisory circuit.
Preferably, single-chip microcomputer has the control output end that outer bound pair standing state inquiry can be provided.
The present invention also provides a kind of control method of multiband laser, and this method is used for the wave band of laser is adjusted, and method includes:
(1) user can select wave band control according to own demand by band selector;
(2) band selector will respond the input single-chip microcomputer, and single-chip microcomputer is according to the corresponding control signal of amount output of this input;
(3) control signal enters first input control circuit and second input control circuit, and this first input control circuit and second input control circuit are handled control signal;
(4) control signal through the output of first input control circuit offers accurate control information of thermoelectric cooling chip for driving, and the thermoelectric cooling chip for driving can respond this control information, and output wave band conditioning signal; Control signal through the output of second input control circuit offers a parameter control circuit simultaneously;
(5) the wave band conditioning signal is input to output control circuit, the working temperature that this output control circuit is regulated laser according to the wave band conditioning signal, and then regulate wavelength range; Parameter control circuit is controlled laser parameters simultaneously, to satisfy application requirements.
Preferably, control method of the present invention also includes step (6): the light signal that laser sends is behind a wave detector, feedback quantity input single-chip microcomputer is provided after this wave detector monitoring, single-chip microcomputer is calculated corresponding voltage variety according to this input variable, this voltage variety is through first input control circuit, offer accurate control information of thermoelectric cooling chip for driving, this thermoelectric cooling chip for driving can respond this control information, output signal after the response is through output control circuit control laser, and then fine adjusting laser, the operation wavelength of change laser.
Preferably; control method of the present invention also includes step (7): make output control circuit be electrically connected single-chip microcomputer by a supervisory circuit, if the output of monitor circuit monitors output control circuit is output abnormality; can send signal and give single-chip microcomputer, single-chip microcomputer is protected processing.
Preferably, single-chip microcomputer has the control output end, and its control output signal provides the inquiry of outer bound pair standing state, to learn current regulated quantity.
By the adjusting device and the control method of multiband laser of the present invention, can realize making the effect of laser works in C-band and C+ wave band, just can improve transmission capacity not needing to increase under the situation of laser, easy and simple to handle, save cost.
Description of drawings
Fig. 1 is embodiment one theory diagram of the adjusting device of multiband laser of the present invention;
Fig. 2 is embodiment two theory diagrams of the adjusting device of multiband laser of the present invention;
Fig. 3 is the flow chart of the control method of multiband laser of the present invention.
Embodiment
For ease of structure of the present invention and the function that reaches are had further understanding, the preferred embodiment that develops simultaneously of existing conjunction with figs. is described in detail as follows.
Adjusting device of the present invention is regulated the wavelength range of laser emission, makes laser works in C-band and C+ wave band.As shown in Figure 1, the adjusting device of multiband laser of the present invention includes band selector 1, single-chip microcomputer 2, first input control circuit 3, thermoelectric cooling (TEC) chip for driving 4, output control circuit 5, second input control circuit 6 and parameter control circuit 7, this band selector 1 is electrically connected single-chip microcomputer 2, single-chip microcomputer 2 is electrically connected first input control circuit 3 and second input control circuit 6, first input control circuit 3 is electrically connected TEC chip for driving 4, TEC chip for driving 4 is electrically connected output control circuit 7, second input control circuit 6 is electrically connected parameter control circuit 7, this parameter control circuit 7 all is electrically connected laser 8 with output control circuit 5, in order to the wavelength range of laser 8 is regulated.
Introduce the adjusting device of multiband laser of the present invention below in conjunction with Fig. 1 and Fig. 3 laser is carried out the operation principle that wave band is regulated: (1) user can select wave band control according to own demand by band selector 1; (2) band selector 1 will respond input single-chip microcomputer 2, and single-chip microcomputer 2 is according to the corresponding control signal of amount output of this input; (3) control signal enters first input control circuit 3 and second input control circuit 6, and this first input control circuit 3 and 6 pairs of control signals of second input control circuit are handled; (4) control signal through 3 outputs of first input control circuit offers 4 one accurate control informations of TEC chip for driving, and TEC chip for driving 4 can respond this control information, and output wave band conditioning signal; Control signal through 6 outputs of second input control circuit offers parameter control circuit 7 simultaneously; (5) the wave band conditioning signal is input to output control circuit 5, the working temperature that output control circuit 5 is regulated laser 8 according to the wave band conditioning signal, and then regulate wavelength range; The parameter of 7 pairs of lasers 8 of parameter control circuit is controlled simultaneously, because of laser is launched light wave except wavelength is had requirement, to other parameters, as power output, extinction ratio, shake and surplus etc. requirement to be arranged all, to use in order satisfying, these indexs must guarantee, laser is after C-band is transferred to the C+ wave band, variation has all taken place in these parameters, so must regulate above-mentioned parameter simultaneously, satisfies the certain index requirement.By as can be seen above, by two-way the wave band of laser 8 is regulated control, the light wave quality of laser can be guaranteed, and the wavelength stabilization of laser 8 output multibands (being C-band and C+ wave band among the present invention) can be made.
As shown in Figure 2, also be provided with wave detector 9 between laser 8 and the single-chip microcomputer 2 among the present invention, this wave detector 9 is electrically connected with single-chip microcomputer 2, if laser 8 wavelength for a certain reason is offset, feedback quantity input single-chip microcomputer 2 is provided after wave detector 9 monitoring, single-chip microcomputer 2 is calculated corresponding voltage variety according to this input variable, voltage variety offers 4 accurate control informations of TEC chip for driving through first input control circuit 3,4 these control informations of response of TEC chip for driving, output signal after the response is through output control circuit 5 control lasers 8, and then fine adjusting laser 8, the operation wavelength of change laser 8.
Control for the wave band of laser 8 realizes by the two independent circuit.One the tunnel is first input control circuit 3, TEC chip for driving 4 and output control circuit 5, and its working temperature to laser 8 is controlled, and wavelength change is played a major role; Another road is second input control circuit 6, parameter control circuit 7, and its parameter to laser 8 is controlled, and when shakes such as power output, the delustring of output light-wave etc.Though this two-way is independently, must combined debugging just can reach the effect of laser 8 multiband light waves.
As shown in Figure 2; output control circuit 5 also can be electrically connected single-chip microcomputer 2 by a supervisory circuit 10; the output of supervisory circuit 10 monitoring output control circuits 5; if output abnormality; can send signal and give single-chip microcomputer 2, single-chip microcomputer 2 is protected processing, and single-chip microcomputer 2 has control output end 20; its control output signal provides the inquiry of outer bound pair standing state, to learn current regulated quantity.
Adjusting device and control method by multiband laser of the present invention, do not needing to change under the situation of C+band laser, by peripheral circuit control C band DWDM XFP (10 Gigabit Small Form Factor Pluggable Module, the hot-swappable module of 10G miniaturization) realizes the wavelength adjustment, be aided with the closed-loop control of wavelength fine setting, can guarantee the required precision of whole DWDM XFP wavelength, simultaneously relevant parameter be adjusted to guarantee whole DWDM XFP stable performance.Therefore the present invention can realize making the effect of laser works in C-band and C+ wave band, just can improve transmission capacity not needing to compress under the situation of wavelength interval, and is easy and simple to handle, the saving cost.
Band selector among the present invention, first input control circuit, second input control circuit, TEC chip for driving, output control circuit, parameter control circuit, wave detector and supervisory circuit are the commercially available prod, do not do detailed description at this.
The above is preferred embodiment of the present invention only, is not to be used to limit protection scope of the present invention.
Claims (8)
1. the adjusting device of a multiband laser, it is used to adjust the wave band of laser, it is characterized in that, the adjusting device of described multiband laser includes band selector, single-chip microcomputer, first input control circuit, the thermoelectric cooling chip for driving, output control circuit, second input control circuit and parameter control circuit, described band selector is electrically connected described single-chip microcomputer, this band selector is used for according to user's request wave band being selected, described single-chip microcomputer is electrically connected described first input control circuit and described second input control circuit, described first input control circuit is electrically connected described thermoelectric cooling chip for driving, described thermoelectric cooling chip for driving is electrically connected described output control circuit, described second input control circuit is electrically connected described parameter control circuit, described parameter control circuit all is electrically connected described laser with described output control circuit, regulates in order to wavelength range and parameter to described laser.
2. the adjusting device of multiband laser as claimed in claim 1 is characterized in that, also is provided with wave detector between described laser and the described single-chip microcomputer, and this wave detector is electrically connected with described single-chip microcomputer.
3. the adjusting device of multiband laser as claimed in claim 2 is characterized in that, described output control circuit is electrically connected described single-chip microcomputer by a supervisory circuit.
4. the adjusting device of multiband laser as claimed in claim 3 is characterized in that, described single-chip microcomputer has the control output end that outer bound pair standing state inquiry can be provided.
5. the control method of a multiband laser, this method is used for the wave band of laser is adjusted, and it is characterized in that, and described method includes:
(1) user can select wave band control according to own demand by band selector;
(2) described band selector will respond the input single-chip microcomputer, and single-chip microcomputer is according to the corresponding control signal of amount output of this input;
(3) described control signal enters first input control circuit and second input control circuit, and this first input control circuit and second input control circuit are handled described control signal;
(4) control signal through described first input control circuit output offers accurate control information of thermoelectric cooling chip for driving, and described thermoelectric cooling chip for driving can respond this control information, and output wave band conditioning signal; Control signal through described second input control circuit output offers a parameter control circuit simultaneously;
(5) described wave band conditioning signal is input to output control circuit, the working temperature that this output control circuit is regulated laser according to the wave band conditioning signal, and then regulate wavelength range; Described parameter control circuit is controlled laser parameters simultaneously, to satisfy application requirements.
6. the control method of multiband laser as claimed in claim 5, it is characterized in that, described control method also includes step (6): the light signal that described laser sends is behind a wave detector, provide feedback quantity to import described single-chip microcomputer after this wave detector monitoring, described single-chip microcomputer is calculated corresponding voltage variety according to this input variable, this voltage variety is through described first input control circuit, offer accurate control information of thermoelectric cooling chip for driving, this thermoelectric cooling chip for driving can respond this control information, output signal after the response is through described output control circuit control laser, and then fine adjusting laser, the operation wavelength of change laser.
7. the control method of multiband laser as claimed in claim 6; it is characterized in that; described control method also includes step (7): make described output control circuit be electrically connected described single-chip microcomputer by a supervisory circuit; the output of the described output control circuit of described monitor circuit monitors; if output abnormality; can send signal and give described single-chip microcomputer, described single-chip microcomputer is protected processing.
8. the control method of multiband laser as claimed in claim 7 is characterized in that, described single-chip microcomputer has the control output end, and its control output signal provides the inquiry of outer bound pair standing state, to learn current regulated quantity.
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201010243558 CN101916960B (en) | 2010-08-03 | 2010-08-03 | Device and method for adjusting multiband laser |
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| CN 201010243558 CN101916960B (en) | 2010-08-03 | 2010-08-03 | Device and method for adjusting multiband laser |
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| CN101916960A true CN101916960A (en) | 2010-12-15 |
| CN101916960B CN101916960B (en) | 2013-05-01 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115173221A (en) * | 2021-12-10 | 2022-10-11 | 山东大学 | Look-up type multiband pulse light parameter adjustment control system and method |
Citations (5)
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| CN1442933A (en) * | 2003-03-28 | 2003-09-17 | 中国科学院上海光学精密机械研究所 | Method and device of stabilizing high power semiconductor laser output wave length |
| CN1933375A (en) * | 2005-09-12 | 2007-03-21 | 中兴通讯股份有限公司 | Tunable regulating light transmitting module and scaling and regulating method thereof |
| CN101174758A (en) * | 2007-10-30 | 2008-05-07 | 武汉电信器件有限公司 | Automatic control system of tunable laser based on lock wave |
| CN201097244Y (en) * | 2007-11-06 | 2008-08-06 | 武汉电信器件有限公司 | Temperature control device for tuning laser |
| CN201097249Y (en) * | 2007-11-06 | 2008-08-06 | 武汉电信器件有限公司 | Polarization current control device for tuning laser |
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2010
- 2010-08-03 CN CN 201010243558 patent/CN101916960B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1442933A (en) * | 2003-03-28 | 2003-09-17 | 中国科学院上海光学精密机械研究所 | Method and device of stabilizing high power semiconductor laser output wave length |
| CN1933375A (en) * | 2005-09-12 | 2007-03-21 | 中兴通讯股份有限公司 | Tunable regulating light transmitting module and scaling and regulating method thereof |
| CN101174758A (en) * | 2007-10-30 | 2008-05-07 | 武汉电信器件有限公司 | Automatic control system of tunable laser based on lock wave |
| CN201097244Y (en) * | 2007-11-06 | 2008-08-06 | 武汉电信器件有限公司 | Temperature control device for tuning laser |
| CN201097249Y (en) * | 2007-11-06 | 2008-08-06 | 武汉电信器件有限公司 | Polarization current control device for tuning laser |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115173221A (en) * | 2021-12-10 | 2022-10-11 | 山东大学 | Look-up type multiband pulse light parameter adjustment control system and method |
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