CN102906948B - Fiber laser and control method and system - Google Patents
Fiber laser and control method and system Download PDFInfo
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- CN102906948B CN102906948B CN201280000569.7A CN201280000569A CN102906948B CN 102906948 B CN102906948 B CN 102906948B CN 201280000569 A CN201280000569 A CN 201280000569A CN 102906948 B CN102906948 B CN 102906948B
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01S—DEVICES USING THE PROCESS OF LIGHT AMPLIFICATION BY STIMULATED EMISSION OF RADIATION [LASER] TO AMPLIFY OR GENERATE LIGHT; DEVICES USING STIMULATED EMISSION OF ELECTROMAGNETIC RADIATION IN WAVE RANGES OTHER THAN OPTICAL
- H01S3/00—Lasers, i.e. devices using stimulated emission of electromagnetic radiation in the infrared, visible or ultraviolet wave range
- H01S3/05—Construction or shape of optical resonators; Accommodation of active medium therein; Shape of active medium
- H01S3/06—Construction or shape of active medium
- H01S3/063—Waveguide lasers, i.e. whereby the dimensions of the waveguide are of the order of the light wavelength
- H01S3/067—Fibre lasers
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/27—Arrangements for networking
- H04B10/272—Star-type networks or tree-type networks
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04B—TRANSMISSION
- H04B10/00—Transmission systems employing electromagnetic waves other than radio-waves, e.g. infrared, visible or ultraviolet light, or employing corpuscular radiation, e.g. quantum communication
- H04B10/50—Transmitters
- H04B10/572—Wavelength control
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Abstract
The invention relates to the communication field and provides a fiber laser and a control method and a system. According to the invention, the first time is obtained in accordance with the real-time temperature of a light gain medium and the first output power of to-be-emitted light pulses. Light waves oscillate in an oscillation cavity at the preset first wavelength within the first time so that the light pulses reach the first output power within the first time and then are emitted. Wavelength-adjustable light pulses can be generated with wide adjustable wavelength range and can satisfy the monitoring requirement of a PON system. In addition, the wavelength of the light pulses is convenient to adjust within a short period of time.
Description
Technical field
The present invention relates to the communications field, particularly a kind of fiber laser and control method, system.
Background technology
Along with PON(Passive Optical Network, EPON) development, its application deployment are more and more extensive.As shown in Figure 1, for typical PON structure chart, transmitted to the optical network unit in multiple branches by optical distribution network for the light wave that carries data.
In order to guarantee the transmission quality of PON, avoid because the device fails on PON branched line causes optic path failure, at present very large to the monitoring demand of PON network.At this stage, OTDR(Optical Time Domain Reflectometer, optical time domain reflectometer) more satisfactory to point-to-point optical fiber monitoring.But owing to mostly being the Optical Fiber Transmission structure of point-to-multipoint in PON system, therefore, OTDR is helpless to point-to-multipoint PON system monitoring.
In order to complete monitoring point-to-multipoint in PON system, need to there is the fiber laser of the light pulse that can launch adjustable wavelength.In the existing stage, by regulate the temperature of laser with electric temp. comtrol arrangement part, thereby can change the output wavelength of the chamber long adjusting light pulse of laser, also can change by magnetic telescopic material or piezoelectric ceramic the long output wavelength that regulates light pulse in chamber of laser.
But existing laser produces the mode of light pulse, the wavelength adjustable extent of light pulse is only in 3nm left and right, and the adjustable extent of wavelength is less, and the required adjusting time is long.
Summary of the invention
In order to solve problems of the prior art, the embodiment of the present invention provides a kind of fiber laser and control method, system.Described technical scheme is as follows:
A kind of fiber laser, described fiber laser comprises: logical circuit, gain of light media drive and vibration chamber;
Wherein, logical circuit is connected with described gain of light media drive, for obtaining the very first time according to the first power output of the light pulse of the real time temperature of the gain of light medium in described vibration chamber and wish transmitting, and vibrate in described vibration chamber with the first wavelength of presetting within the described very first time by described gain of light media drive control light wave, so that described light pulse reaches the first power output; In the time arriving the described very first time, by the chamber that vibrates described in the control of described gain of light media drive, the wavelength that transmitting obtains through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output;
Described gain of light media drive is connected with described vibration chamber, is converted to digital signal, and sends to described vibration chamber for the logical signal for controlling described vibration chamber that described logical circuit is sent.
A control method for fiber laser, described fiber laser comprises logical circuit, gain of light media drive and vibration chamber, described method comprises:
Obtain the very first time according to the first power output of the light pulse of the real time temperature of the gain of light medium in described vibration chamber and wish transmitting;
Vibrate in described vibration chamber with the first wavelength of presetting within the described very first time by described gain of light media drive control light wave, so that described light pulse reaches the first power output;
In the time arriving the described very first time, by the chamber that vibrates described in the control of described gain of light media drive, the wavelength that transmitting obtains through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output.
A control system for fiber laser, described fiber laser comprises gain of light media drive and vibration chamber, described system comprises:
Time-obtaining module, obtains the very first time for the first power output of wanting to reach according to the light pulse of the gain of light medium real time temperature in described vibration chamber and wish transmitting;
The first control module, for vibrating so that described light pulse reaches the first power output with the first wavelength of presetting within the described very first time by described gain of light media drive control light wave in described vibration chamber;
The second control module, for in the time arriving the described very first time, launching by the chamber that vibrates described in the control of the described gain of light media drive wavelength obtaining through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output.
The beneficial effect of the technical scheme that the embodiment of the present invention provides is: the invention provides a kind of fiber laser and control method, system, by obtaining the very first time according to the first power output of the light pulse of the real time temperature of gain of light medium and wish transmitting, and make light wave vibrate and reach the first power output so that reach light pulse in vibration chamber with the first wavelength of presetting within the very first time, and after reaching, launches the very first time, can produce the light pulse of wavelengthtunable, and the adjustable extent of wavelength is large, can meet the monitoring demand of PON system, and the wavelength regulation of light pulse is convenient, required time is short.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme in the embodiment of the present invention, below the accompanying drawing of required use during embodiment is described is briefly described, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skills, do not paying under the prerequisite of creative work, can also obtain according to these accompanying drawings other accompanying drawing.
Fig. 1 is the structural representation of the existing PON system that provides in background technology of the present invention;
Fig. 2 is the structural representation of a kind of fiber laser of providing of the embodiment of the present invention 1;
Fig. 3 is the flow chart of the control method of a kind of optical fiber controller of providing of the embodiment of the present invention 2;
Fig. 4 is that the optical fiber controller that the embodiment of the present invention 2 provides is applied in the schematic diagram in PON system;
Fig. 5 is the structural representation of the control system of a kind of optical fiber controller of providing of the embodiment of the present invention 3;
Fig. 6 is the second structural representation of the control system of a kind of optical fiber controller of providing of the embodiment of the present invention 3;
Fig. 7 is the third structural representation of the control system of a kind of optical fiber controller of providing of the embodiment of the present invention 3.
Embodiment
For making the object, technical solutions and advantages of the present invention clearer, below in conjunction with accompanying drawing, embodiment of the present invention is described further in detail.
Embodiment 1
As shown in Figure 2, the present embodiment provides a kind of fiber laser, and this fiber laser comprises:
FPGA (Field-Programmable Gate Array, logical circuit), BLD(Burst Laser Driver, gain of light media drive) and vibration chamber;
Wherein, FPGA is connected with gain of light media drive, for obtaining the very first time according to the first power output of the light pulse of the real time temperature of the gain of light medium of turbulence cavity and wish transmitting, and control light wave by BLD and vibrate in vibration chamber with the first wavelength of presetting within the very first time, so that light pulse reaches the first power output; In the time arriving the very first time, control vibration chamber by BLD, the wavelength that transmitting obtains through vibration cavity oscillations is that the first wavelength, the power output of presetting is the light pulse of the first power output;
BLD is connected with vibration chamber, is converted to digital signal for the logical signal for controlling vibration chamber that FPGA is sent, and sends to vibration chamber.
Further, vibration chamber is by gain of light medium and FRM(Faraday Rotation Mirror, Faraday speculum) composition, and TF(Tunable Filter, optical filter are installed between gain of light medium and FRM);
TF is for by setting in advance the first wavelength, and making wavelength is that the light wave of the first wavelength vibrates in vibration chamber.
Further, above-mentioned fiber laser also comprises: ISO(Isolation, isolator);
Wherein, ISO is connected with vibration chamber, for isolating the chamber that vibrates that is reflected back of light pulse that fiber laser launches.
Further, above-mentioned fiber laser also comprises: MPD(sense photodiode) and ADC(Analog-to-Digital Converter, A-D converter);
Wherein, MPD is connected with gain of light medium, for detecting in real time the power of light wave, and sends to ADC;
ADC is connected between MPD and FPGA, the power of light wave sending for receiving MPD, and send to FPGA after being converted to logical signal.
It should be noted that, in the present embodiment, gain of light medium is with RSOA(Reflective Semiconductor Optical Amplifier, reflective semiconductor amplifier) describe for example.
Further, between FPGA and BLD, be connected by BEN+, TxD+ and TxD-, BEN+ can be used for FPGA and sends the first digital signal to BLD, the transmitting of controlling BLD enables, even if RSOA penetrates critical condition in swashing, TxD+ and TxD-can be used for FPGA and send the second digital signal (pulse signal sequential) to BLD, make the pulse of described RSOA utilizing emitted light.
Further, BLD is connected by OUT+ and BIAS+ with RSOA, OUT+ is used for BLD in the time receiving the first digital signal, send indication RSOA in swashing first analog signal of penetrating critical condition according to this first digital signal to RSOA, BIAS+ is receiving after the second digital signal for BLD, sends the second analog signal of indication RSOA transmission light pulse to RSOA.
The present embodiment provides a kind of fiber laser, and this laser is by controlling the light pulse that can produce wavelengthtunable, and the adjustable extent of wavelength is large, can meet the monitoring demand of PON system, and the wavelength regulation of light pulse is convenient, and required time is short.
Embodiment 2
The present embodiment provides a kind of control method of fiber laser, and under the control of this method, fiber laser can produce the light pulse of wavelengthtunable, and the power controllable of this light pulse.In the present embodiment, describe the fiber laser described in embodiment 1 is controlled as example, this optical fiber controller comprises FPGA, BLD and vibration chamber.
As shown in Figure 3, a kind of control method of optical fiber controller, comprises the steps:
201, setting is the first wavelength by the wavelength of the light wave of TF;
Wherein, the first wavelength is the wavelength of the light pulse of wish transmitting, also can be by FPGA the wavelength to the light wave by TF.
202, obtain the very first time according to the first power output of the real time temperature of RSOA and light pulse;
Wherein, the very first time is specially the time of vibrating in vibration chamber through the light wave of RSOA gain, and light wave after the vibration of the very first time, can reach the first power output in vibration chamber.The very first time is determined by the power spectrum curve of RSOA, the first power output of wanting to reach and the temperature of RSOA.
Further, before this step, this method can also comprise:
Calculate and obtain different temperature and duration of oscillation corresponding to power output according to the power output of the light wave in the power spectrum curve of RSOA, temperature and vibration chamber, and set up in advance the corresponding relation of temperature, power output and duration of oscillation.
It should be noted that, the power spectrum curve of different RSOA is not identical, and the power spectrum curve of the RSOA using in fiber laser can be provided by RSOA production firm, also can measure RSOA.
Correspondingly, the first power output of wanting to reach according to the real time temperature of RSOA and light pulse is obtained the very first time, is specifically as follows:
The first power output of wanting to reach according to the real time temperature of RSOA and light pulse is searched and is obtained the real time temperature of RSOA and the corresponding duration of oscillation of the first power output that light pulse is wanted to reach as the very first time in the corresponding relation of said temperature, power output and duration of oscillation.
203, control light wave by BLD and in vibration chamber, vibrate to reach the first power output with the first wavelength within the very first time;
It should be noted that, vibration chamber is made up of RSOA, TF and FRM, correspondingly, vibrate in vibration chamber with the first wavelength and also among the vibration chamber of RSOA, TF and FRM formation, vibrate within the very first time through the light wave of RSOA gain within the very first time even if control light wave.
Further, control light wave by BLD and in vibration chamber, vibrate to reach the first power output with the first wavelength within the very first time, specifically comprise:
Within the very first time, continuous sends and is used to indicate first digital signal of RSOA in oscillatory regime to BLD, send to RSOA so that the first digital signal is converted to the first corresponding analog signal by BLD, make light wave in vibration chamber, vibrate to reach the first power output with the first wavelength within the very first time.
Particularly, the first digital signal can send by the BEN+ that connects FPGA and BLD, and this first digital signal sends for continuing, and for example, in order to make RSOA penetrate critical condition in swashing, what FPGA was lasting passes through BEN+ to BLD transmitted signal " 1 ".When BLD receives after the first digital signal, be converted to the first corresponding analog signal and send to RSOA by OUT+, make RSOA penetrate critical condition in swashing.
204,, when arriving when the very first time, controlling by BLD the wavelength that the transmitting of vibration chamber obtains through the cavity oscillations of vibrating is that the first wavelength, power output are the light pulse of the first power output.
Further, this step specifically comprises:
In the time arriving the very first time, send the second digital signal that is used to indicate the pulse of RSOA utilizing emitted light to BLD, send to RSOA so that the second digital signal is converted to the second corresponding analog signal by BLD, it is that the first wavelength, power output are the light pulse of the first power output that the wavelength obtaining through vibration cavity oscillations is launched in the chamber that makes to vibrate.
Particularly, the second digital signal is used to indicate light pulse signal sequential, can send to BLD by TxD+ and TxD-, BLD receives after the second digital signal, change the second corresponding analog signal into and send to RSOA by BIAS+, RSOA sends light wave according to the light pulse signal sequential in the second analog signal and forms light pulse.
Further, this method can also comprise:
In the time of utilizing emitted light pulse, MPD detects the power output that obtains this light pulse, and be converted to digital signal by ADC and send to FPGA, FPGA records the power output of current light pulse, to judge whether the power output of described light pulse meets the power output of wanting to reach.
As shown in Figure 4, provide one by the schematic diagram in PON system that is applied in of the provided fiber laser of invent, can realize the monitoring for multiple branches in PON system.
Wherein, the supervisory control system shown in Fig. 4 comprises OTDR, and this OTDR is for the decay event of the light wave of test input;
In this system, also comprise two circulators (Circulator), be installed on respectively the front-end and back-end of supervisory control system, the circulator of front end is connected with OTDR, the circulator of rear end is connected with fiber laser (Tunable Laser), circulator only allows the direction transmission of its regulation, can play the buffer action of light wave;
Attenuator (Attenuator) is connected with the circulator of front end, for the light wave of input is decayed, prevents the follow-up element of the excessive damage of power of light wave;
Photoelectric conversion module (O/E, Optical/Electric) be connected with attenuator, be specially in the present embodiment optical line terminal optical module (OLT optical module, Optical Line Terminal optical module), for completing monitoring function;
Fiber laser in Fig. 4 is fiber laser provided by the present invention, is installed between driver (Driver) and the circulator of rear end, and for generation of the light pulse of adjustable wavelength and power output, driver is used for driving this fiber laser;
Array waveguide grating (AWG, Arrayed Waveguide Grating) is for the light pulse of the different wavelength of Tunable Laser generation is sent by different branches, to realize the monitoring to branches different in PON system.
The present embodiment provides a kind of control method of fiber laser, by the control to above-mentioned fiber laser, and the light pulse that can make laser produce wavelengthtunable, and adjustable extent is larger, and it is convenient to regulate, and required time is short.
Embodiment 3
As shown in Figure 5, the present embodiment provides a kind of control system of fiber laser, and the fiber laser in the present embodiment comprises BLD and vibration chamber, and this system specifically can realize by FPGA, and this system comprises:
Time-obtaining module 301, for obtaining the very first time according to the first power output of the light pulse of the real time temperature of the gain of light medium in vibration chamber and wish transmitting;
The first control module 302, vibrates in vibration chamber with the first wavelength of presetting within the very first time for control light wave by BLD, so that light pulse reaches the first power output;
The second control module 303, for when arriving when the very first time, controlling by BLD the wavelength that the transmitting of vibration chamber obtains through the cavity oscillations of vibrating is that the first wavelength, the power output of presetting is the light pulse of the first power output.
Further, as shown in Figure 6, said system also comprises:
Further, time-obtaining module 301 specifically for, in the corresponding relation of different temperature and power output and duration of oscillation, search and obtain the corresponding duration of oscillation of the first power output that gain of light medium real time temperature and light pulse want to reach as the very first time according to the first power output of the light pulse of the real time temperature of gain of light medium and wish transmitting.。
Further, the first control module 302 specifically for, within the very first time, continuous sends and is used to indicate first digital signal of vibration chamber in oscillatory regime to BLD, send to vibration chamber so that the first digital signal is converted to the first corresponding analog signal by BLD, light wave is vibrated so that light pulse reaches the first power output in vibration chamber with the first wavelength of presetting within the very first time.
Further, the second control module 303 specifically for, in the time arriving the very first time, send the second digital signal that is used to indicate vibration chamber utilizing emitted light pulse to BLD, send to gain of light medium so that the second digital signal is converted to the second corresponding analog signal by BLD, it is that the first wavelength, the power output of presetting is the light pulse of the first power output that the wavelength obtaining through vibration cavity oscillations is launched in the chamber that makes to vibrate.
Further, as shown in Figure 7, said system also comprises:
The embodiment of the present invention provides a kind of control system of fiber laser, by the control to above-mentioned fiber laser, and the light pulse that can make laser produce wavelengthtunable, and adjustable extent is larger, and it is convenient to regulate, and required time is short.
One of ordinary skill in the art will appreciate that all or part of step that realizes above-described embodiment can complete by hardware, also can carry out the hardware that instruction is relevant by program completes, described program can be stored in a kind of computer-readable recording medium, the above-mentioned storage medium of mentioning can be read-only memory, disk or CD etc.
The foregoing is only preferred embodiment of the present invention, in order to limit the present invention, within the spirit and principles in the present invention not all, any modification of doing, be equal to replacement, improvement etc., within all should being included in protection scope of the present invention.
Claims (16)
1. a fiber laser, is characterized in that, described fiber laser comprises: logical circuit, gain of light media drive and vibration chamber;
Wherein, logical circuit is connected with described gain of light media drive, for obtaining the very first time according to the first power output of the light pulse of the real time temperature of the gain of light medium in described vibration chamber and wish transmitting, and vibrate in described vibration chamber with the first wavelength of presetting within the described very first time by described gain of light media drive control light wave, so that described light pulse reaches the first power output; In the time arriving the described very first time, by the chamber that vibrates described in the control of described gain of light media drive, the wavelength that transmitting obtains through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output;
Described gain of light media drive is connected with described vibration chamber, is converted to digital signal, and sends to described vibration chamber for the logical signal for controlling described vibration chamber that described logical circuit is sent.
2. fiber laser according to claim 1, is characterized in that, described vibration chamber is made up of described gain of light medium and Faraday speculum, and between described gain of light medium and described Faraday speculum, optical filter is installed;
Described optical filter is for by setting in advance the first wavelength, and making wavelength is that the light wave of the first wavelength vibrates in described vibration chamber.
3. fiber laser according to claim 1, is characterized in that, described fiber laser also comprises: isolator;
Wherein, described isolator is connected with described vibration chamber, is reflected back described vibration chamber for isolating the light pulse that described fiber laser launches.
4. fiber laser according to claim 1, is characterized in that, described fiber laser also comprises: sense photodiode and A-D converter;
Wherein, described sense photodiode is connected with described gain of light medium, for detecting in real time the power of described light wave, and sends to described A-D converter;
Described A-D converter is connected between described sense photodiode and described logical circuit, for receiving the power of the described light wave that described sense photodiode sends, and sends to described logical circuit after being converted to logical signal.
5. a control method for fiber laser, is characterized in that, described fiber laser comprises logical circuit, gain of light media drive and vibration chamber, and described method comprises:
Obtain the very first time according to the first power output of the light pulse of the real time temperature of the gain of light medium in described vibration chamber and wish transmitting;
Vibrate in described vibration chamber with the first wavelength of presetting within the described very first time by described gain of light media drive control light wave, so that described light pulse reaches the first power output;
In the time arriving the described very first time, by the chamber that vibrates described in the control of described gain of light media drive, the wavelength that transmitting obtains through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output.
6. method according to claim 5, is characterized in that, described method specifically comprises:
Calculate and obtain described temperature and duration of oscillation corresponding to power output according to the power output of the light wave in the power spectrum curve of described gain of light medium, temperature and described vibration chamber, and set up in advance the corresponding relation of described temperature, power output and duration of oscillation.
7. method according to claim 6, is characterized in that, described the first power output according to the light pulse of the real time temperature of the gain of light medium in described vibration chamber and wish transmitting is obtained the very first time, specifically comprises:
In the corresponding relation of described temperature, power output and duration of oscillation, search and obtain the corresponding duration of oscillation of the first power output that described gain of light medium real time temperature and described light pulse want to reach as the very first time according to the first power output of the light pulse of the real time temperature of described gain of light medium and described wish transmitting.
8. method according to claim 5, it is characterized in that, describedly vibrate in described vibration chamber with the first wavelength of presetting within the described very first time by described gain of light media drive control light wave, so that described light pulse reaches the first power output, specifically comprise:
Within the described very first time, continuous sends and is used to indicate first digital signal of described vibration chamber in oscillatory regime to described gain of light media drive, so that being converted to the first corresponding analog signal by described gain of light media drive, described the first digital signal sends to described vibration chamber, described light wave is vibrated within the described very first time in described vibration chamber, so that described light pulse reaches the first power output with the first wavelength of presetting.
9. method according to claim 5, it is characterized in that, described in the time arriving the described very first time, launching by the chamber that vibrates described in the control of the described gain of light media drive wavelength obtaining through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output, specifically comprises:
In the time arriving the described very first time, send the second digital signal that is used to indicate the utilizing emitted light pulse of described vibration chamber to described gain of light media drive, send to described gain of light medium so that described the second digital signal is converted to the second corresponding analog signal by described gain of light media drive, making described vibration chamber launch the wavelength obtaining through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output.
10. method according to claim 5, is characterized in that, in the time arriving the described very first time, described method also comprises:
Receive sense photodiode and detect the power output of the described light pulse that obtains and forward by A-D converter, and record the power output of described light pulse.
The control system of 11. 1 kinds of fiber lasers, is characterized in that, described fiber laser comprises gain of light media drive and vibration chamber, and described system comprises:
Time-obtaining module, obtains the very first time for the first power output of wanting to reach according to the light pulse of the real time temperature of the gain of light medium in described vibration chamber and wish transmitting;
The first control module, for vibrating in described vibration chamber with the first wavelength of presetting within the described very first time by described gain of light media drive control light wave, so that described light pulse reaches the first power output;
The second control module, for in the time arriving the described very first time, by the chamber that vibrates described in the control of described gain of light media drive, the wavelength that transmitting obtains through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output.
12. systems according to claim 11, is characterized in that, described system also comprises:
Time Calculation module, for calculating and obtain described temperature and duration of oscillation corresponding to power output according to the power output of the light wave in the power spectrum curve of described gain of light medium, temperature and described vibration chamber, and set up in advance the corresponding relation of described temperature, power output and duration of oscillation.
13. systems according to claim 12, it is characterized in that, described time-obtaining module specifically for, in the corresponding relation of described temperature, power output and duration of oscillation, search and obtain the corresponding duration of oscillation of the first power output that described gain of light medium real time temperature and described light pulse want to reach as the very first time according to the first power output of the light pulse of the real time temperature of described gain of light medium and described wish transmitting.
14. systems according to claim 11, it is characterized in that, described the first control module specifically for, within the described very first time, continuous sends and is used to indicate first digital signal of described vibration chamber in oscillatory regime to described gain of light media drive, so that being converted to the first corresponding analog signal by described gain of light media drive, described the first digital signal sends to described vibration chamber, described light wave is vibrated within the described very first time in described vibration chamber, so that described light pulse reaches the first power output with the first wavelength of presetting.
15. systems according to claim 11, it is characterized in that, described the second control module specifically for, in the time arriving the described very first time, send the second digital signal that is used to indicate the utilizing emitted light pulse of described vibration chamber to described gain of light media drive, send to described gain of light medium so that described the second digital signal is converted to the second corresponding analog signal by described gain of light media drive, making described vibration chamber launch the wavelength obtaining through described vibration cavity oscillations is that described the first default wavelength, power output are the light pulse of described the first power output.
16. systems according to claim 11, is characterized in that, described system also comprises:
Power monitoring module, in the time arriving the described very first time, receives sense photodiode and detects the power output of the described light pulse that obtains and forward by A-D converter, and record the power output of described light pulse.
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| PCT/CN2012/076701 WO2013185273A1 (en) | 2012-06-11 | 2012-06-11 | Fiber laser, and method and system for controlling same |
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| US5793507A (en) * | 1996-05-31 | 1998-08-11 | Lucent Technologies Inc. | Discretely chirped multiple wavelength optical source for use in a passive optical network telecommunications system |
| US7002697B2 (en) * | 2001-08-02 | 2006-02-21 | Aegis Semiconductor, Inc. | Tunable optical instruments |
| CN101039149B (en) * | 2007-02-12 | 2011-06-08 | 华为技术有限公司 | Wavelength aligning method and system |
| EP2320582A1 (en) * | 2009-11-06 | 2011-05-11 | Nokia Siemens Networks Oy | Optical fiber amplifier with improved performance |
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|---|---|
| WO2013185273A1 (en) | 2013-12-19 |
| CN102906948A (en) | 2013-01-30 |
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