CN202841144U - Narrow linewidth analog signal laser source - Google Patents
Narrow linewidth analog signal laser source Download PDFInfo
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- CN202841144U CN202841144U CN 201220453536 CN201220453536U CN202841144U CN 202841144 U CN202841144 U CN 202841144U CN 201220453536 CN201220453536 CN 201220453536 CN 201220453536 U CN201220453536 U CN 201220453536U CN 202841144 U CN202841144 U CN 202841144U
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- 239000000919 ceramic Substances 0.000 claims description 5
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Abstract
The utility model provides a narrow linewidth analog signal laser source. Multiple slots on a backplane of a control host are connected with a fiber laser module and are connected with a phase modulation module and/or an amplitude modulation module. The fiber laser module comprises a narrow linewidth fiber laser, a laser driving control circuit and a laser electronic interface. The phase/amplitude modulation module comprises a phase/amplitude modulator, a phase/amplitude modulation control circuit, a phase/amplitude modulation analog signal input electric interface, an electronic interface and input and output optical interfaces. A laser output by the laser accesses the input optical interface of the phase/amplitude modulation module. The control host controls the laser to output a corresponding narrow linewidth laser. The control host controls the phase/amplitude modulation module to carry out corresponding phase/amplitude modulation on the input laser. The laser source can be matched with an optical switch module, an optical power meter module and an adjustable optical attenuator module. A single device of the laser source can output a special analog signal and a laser signal, and the laser source has the advantages of compact structure and good expansibility and selectivity.
Description
Technical field
The utility model relates to a kind of fiber optic laser source, is specifically related to a kind of narrow linewidth analog signal lasing light emitter of exportable any modulated-analog signal.
Background technology
Present narrow linewidth fiber laser light source has several the functions such as continuous laser output, power adjustments and frequency modulation(FM).Generally formed by optical fiber laser resonant cavity, tunable parts (optical fiber grating temperature controller and piezoelectric ceramic (PZT) frequency modulation device) and pump laser driving circuit section.Optical fiber laser resonant cavity mainly contains distributed Feedback (DFB Distributed Feedback) or two kinds of structures of distributed Bragg (DBR).
The rear-earth-doped DFB fiber grating of the main laser optical routing of existing narrow linewidth fiber laser light source or two FBG fiber grating+rare-earth doped optical fibre, 980/1550nm wavelength division multiplexer (WDM) and fibre optic isolater (ISO) consist of.By regulating the pump laser power output, can change optical output power of laser; By regulating the laser grating temperature, can change the laser works wavelength; By control piezoelectric ceramic (PZT) modulation signal, can obtain laser of frequency modulation output.Because the narrow linewidth fiber laser light source has the characteristics such as stable single longitudinal mode characteristic, super narrow live width, very long coherence length, stable structure, have widely in fields such as optical communication, light sensing, spectroscopy and use.
But because of the direct laser signal of Output of laser frequency modulation(FM) or laser phase modulation or random waveform pulse amplitude modulation of existing narrow linewidth fiber laser light source, for the output that realizes laser modulation signal needs external various device, raise the cost, and use inconvenience.
The utility model content
Technical problem to be solved in the utility model provides a kind of narrow linewidth analog signal lasing light emitter, main control system control laser module, also control phase modulation module and/or amplitude modulation(PAM) module, the laser signal of laser module output obtains phase-modulation and/or amplitude modulation(PAM) through phase-modulation module and/or amplitude modulation(PAM) module.
The narrow linewidth analog signal lasing light emitter of the utility model design comprises the fiber laser module, it contains narrow cable and wide optical fiber laser and laser Drive and Control Circuit, laser electrical interface and laser optical interface, laser electrical interface connecting laser Drive and Control Circuit, narrow cable and wide optical fiber laser is furnished with tuning part, its output access laser optical interface; Main control system contains industrial computer and the man-machine interface that is attached thereto and backboard, is furnished with a plurality of slots that are connected with bus on the backboard, and DC power supply connects each parts power supply of main control system; Industrial computer is connected with the laser electrical interface of fiber laser module through its backboard.This narrow linewidth analog signal lasing light emitter also has phase-modulation module and/or amplitude modulation(PAM) module, the phase-modulation module comprises phase-modulator, the phase-modulation control circuit, phase-modulation analog signal input electrical interface, phase-modulation electrical interface and phase-modulation input optical interface, phase-modulation output optical interface, industrial computer is connected with the phase-modulation electrical interface of phase-modulation module through its backboard, the phase-modulation electrical interface connects the phase-modulator control circuit, the phase-modulator control circuit connects phase-modulator, the phase-modulation analog input interface connects phase-modulator, and phase-modulation input optical interface is connected optical interface and is connected respectively phase-modulator with phase-modulation;
The amplitude modulation(PAM) module comprises amplitude modulator, the amplitude modulator radio driver, amplitude modulation(PAM) analog signal input electrical interface, the amplitude modulation(PAM) control circuit, amplitude modulation(PAM) electrical interface and amplitude modulation(PAM) input optical interface, amplitude modulation(PAM) output optical interface, industrial computer is connected with the amplitude modulation(PAM) electrical interface of amplitude modulation(PAM) module through its backboard, the amplitude modulation(PAM) electrical interface connects the amplitude modulator control circuit, the amplitude modulator control circuit connects amplitude modulator, the amplitude modulation(PAM) analog input interface connects amplitude modulator through the amplitude modulator radio driver, and amplitude modulation(PAM) input optical interface is connected optical interface and is connected respectively amplitude modulator with amplitude modulation(PAM).The laser of narrow cable and wide optical fiber laser output is through the phase-modulation input optical interface of its laser optical interface access phase-modulation module and/or the amplitude modulation(PAM) input optical interface of amplitude modulation(PAM) module.
Main control system is through the control command of laser electrical interface to the power supply of the laser Drive and Control Circuit of fiber laser module and transmission industrial computer, and the laser Drive and Control Circuit is carried out the driving of tuning part and the operating frequency of tuning part, the adjusting of modulation depth by this instruction; Narrow cable and wide optical fiber laser is exported corresponding narrow-linewidth laser by this by the laser optical interface.
Main control system is through the control command of phase-modulation electrical interface to the power supply of the phase-modulator Drive and Control Circuit of phase-modulator module and transmission industrial computer, phase-modulator is accepted the control break bias voltage of phase-modulator Drive and Control Circuit, and phase-modulation analog signal input electrical interface receives the analog signal of external instrument and is transferred to phase-modulator; The laser of fiber laser module output enters phase-modulator by phase-modulation input optical interface, phase-modulator carries out the respective phase modulation to input laser under externally the phase-modulation analog signal of instrument is controlled by phase-modulation analog signal input electrical interface, from the laser of phase-modulation output optical interface output through phase-modulation, namely laser signal has loaded FM signal.
Main control system is through the control command of amplitude modulation(PAM) electrical interface to the power supply of the amplitude modulator Drive and Control Circuit of amplitude modulator module and transmission industrial computer, the control break bias voltage of amplitude modulator acceptance latitude modulator Drive and Control Circuit, amplitude modulation(PAM) analog signal input electrical interface receives the amplitude modulation(PAM) analog signal of external instrument and is transferred to the amplitude modulation(PAM) radio driver, and is worked by amplitude modulation(PAM) radio driver drives amplitude modulator; The laser of fiber laser module output enters amplitude modulator by amplitude modulation(PAM) input optical interface, again from the laser of amplitude modulation(PAM) output optical interface output through amplitude modulation(PAM), be that laser signal loads am signals, form pulsed laser signal or modulation analog optical signal.
For the ease of installing and being connected, laser electrical interface, phase-modulation electrical interface and amplitude modulation(PAM) electrical interface are identical electronic connector, and each pin definitions of electrical interface connector all is consistent with communication bus protocol.
Described narrow cable and wide optical fiber laser is single longitudinal mode distributed Feedback (DFB) fiber laser, or single longitudinal mode distributed Bragg (DBR) fiber laser, and institute's humorous parts of auxiliary tone are piezoelectric ceramic (PZT) fm components.
The man-machine interface of described main control system is touch LCD screen.
The operation wavelength of described phase-modulator module and amplitude modulator module is identical with narrow cable and wide optical fiber laser module operation wavelength.
This narrow linewidth analog signal lasing light emitter also can be furnished with one or more in optical switch module, light power meter module, the adjustable optical attenuator module.
The optical switch module core component is optical switch, is furnished with optical switch electrical interface and optical switch input optical interface, optical switch output optical interface.Optical switch module is connected with the backboard of main control system through the optical switch electrical interface, and optical switch input optical interface connects fiber laser module laser optical interface.The keying of the instruction of main control system control optical switch is selected to cooperate narrow cable and wide optical fiber laser to carry out light path, also can be independently and external equipment be used
Light power meter module core component is light power meter, is furnished with light power meter electrical interface and light power meter input optical interface, light power meter output optical interface.The light power meter module is connected with the backboard of main control system through the light power meter electrical interface, and luminous power photometric input interface connects fiber laser module laser optical interface.The work of the instruction of main control system control light power meter, through light power meter electrical interface received optical power instrumentation test result, also can be independently and external equipment be used.
Adjustable optical attenuator module core component is adjustable optical attenuator, is furnished with adjustable optical attenuator electrical interface and adjustable optical attenuator input optical interface, adjustable optical attenuator output optical interface.The adjustable optical attenuator module is connected with the backboard of main control system through the adjustable optical attenuator electrical interface, and adjustable optical attenuator light input interface connects fiber laser module laser optical interface.The optical attenuation ratio of the instruction of main control system control adjustable optical attenuator, to regulate this lasing light emitter Output optical power, also can be independently and external equipment be used.
The laser work consistent wavelength of the operation wavelength of described optical switch, light power meter and adjustable optical attenuator and narrow cable and wide optical fiber laser.
Main control system is installed in the cabinet, a plurality of identical slots are arranged on the backboard, and any or several can be selected to insert in arbitrary slot of backboard in fiber laser module, phase-modulation module, amplitude modulation(PAM) module, optical switch module, light power meter module and the adjustable optical attenuator module.
For ease of operation, the input optical interface of fiber laser module, phase-modulation module, amplitude modulation(PAM) module, optical switch module, light power meter module and adjustable optical attenuator module and output optical interface are installed on respectively on the panel of each functional module.
Compared with prior art, the advantage of the utility model narrow linewidth analog signal lasing light emitter is: 1, the integrated multinomial application technologies such as narrow cable and wide optical fiber laser, laser frequency modulation, laser phase modulation, random waveform pulse amplitude modulation, realize the extraordinary analog signal laser signal that single device just can be exported to be needed, finish the work of the multiple devices of prior art; 2, function modoularization design, in conjunction with insertion slot type backboard and unified electrical interface, compact overall structure has very good autgmentability, selectivity, can be used as multiple lasing light emitter and use, more be applicable to designing and developing of the field such as optical fiber sensing system and analog optical signal transmission amplification system.
Description of drawings
Fig. 1 is this narrow linewidth analog signal lasing light emitter example structure block diagram.
Embodiment
This narrow linewidth analog signal lasing light emitter embodiment as shown in Figure 1, main control system comprises industrial computer and the touching display screen that is attached thereto and backboard, be furnished with a plurality of identical slot that connects with bus on the backboard, DC power supply connects each parts of main control system, for it power supply.
The fiber laser module comprises narrow cable and wide optical fiber laser, laser Drive and Control Circuit, laser electrical interface and laser optical interface, laser electrical interface connecting laser Drive and Control Circuit, narrow cable and wide optical fiber laser is furnished with tuning part, its output access laser optical interface; This routine narrow cable and wide optical fiber laser is the single longitudinal mode distributed feedback fibre laser, also can select single longitudinal mode distributed Bragg fiber laser.The humorous parts of narrow cable and wide optical fiber laser institute auxiliary tone are piezoelectric ceramic (PZT) fm components.
The phase-modulation module comprises phase-modulator, phase-modulation control circuit, phase-modulation analog signal input electrical interface, phase-modulation electrical interface and phase-modulation input optical interface, phase-modulation output optical interface, the phase-modulation electrical interface connects the phase-modulator control circuit, the phase-modulator control circuit connects phase-modulator, phase-modulation analog signal input electrical interface connects phase-modulator, and phase-modulation input optical interface is connected optical interface and is connected respectively phase-modulator with phase-modulation;
Described amplitude modulation(PAM) module comprises amplitude modulator, the amplitude modulator radio driver, the amplitude modulation(PAM) control circuit, amplitude modulation(PAM) analog signal input electrical interface, amplitude modulation(PAM) electrical interface and amplitude modulation(PAM) input optical interface, amplitude modulation(PAM) output optical interface, the amplitude modulation(PAM) electrical interface connects the amplitude modulator control circuit, the amplitude modulator control circuit connects amplitude modulator, amplitude modulation(PAM) analog signal input electrical interface connects phase-modulator through the amplitude modulator radio driver, and amplitude modulation(PAM) input optical interface is connected optical interface and is connected respectively amplitude modulator with amplitude modulation(PAM);
Laser electrical interface, phase-modulation electrical interface and amplitude modulation(PAM) electrical interface are unified identical electronic connector, respectively are inserted on the slot of backboard, are connected with main control system.
The laser of narrow cable and wide optical fiber laser output is through the phase-modulation input optical interface of its laser optical interface access phase-modulation module and the amplitude modulation(PAM) input optical interface of amplitude modulation(PAM) module.
The operation wavelength of described phase-modulator module and amplitude modulator module is identical with narrow cable and wide optical fiber laser module operation wavelength.
This routine main control system is installed in the cabinet, and fiber laser module, phase-modulation module and amplitude modulation(PAM) module are respectively inserted in the slot of main control system backboard.Backboard also has one or more standby slots, be used for to select to patch one or more of optical switch module, light power meter module, adjustable optical attenuator module.
The optical switch module core component is optical switch, is furnished with optical switch electrical interface and optical switch input optical interface, optical switch output optical interface.Optical switch module is connected with the backboard of main control system through the optical switch electrical interface, and optical switch input optical interface connects fiber laser module laser optical interface.
Light power meter module core component is light power meter, is furnished with light power meter electrical interface and light power meter input optical interface, light power meter output optical interface.The light power meter module is connected with the backboard of main control system through the light power meter electrical interface, and luminous power photometric input interface connects fiber laser module laser optical interface.
Adjustable optical attenuator module core component is adjustable optical attenuator, is furnished with adjustable optical attenuator electrical interface and adjustable optical attenuator input optical interface, adjustable optical attenuator output optical interface.The adjustable optical attenuator module is connected with the backboard of main control system through the adjustable optical attenuator electrical interface, and adjustable optical attenuator light input interface connects fiber laser module laser optical interface.
Optical switch electrical interface, light power meter electrical interface and adjustable optical attenuator electrical interface also are the electronic connector identical with above-mentioned laser electrical interface.The laser work consistent wavelength of the operation wavelength of described optical switch, light power meter and adjustable optical attenuator and narrow cable and wide optical fiber laser.
The input optical interface of described phase-modulation module, amplitude modulation(PAM) module, optical switch module, light power meter module and adjustable optical attenuator module and output optical interface are installed on respectively on the panel of each functional module.
Above-described embodiment only is the specific case that the purpose of this utility model, technical scheme and beneficial effect are further described, and the utility model is not to be defined in this.All any modifications of within scope of disclosure of the present utility model, making, be equal to replacement, improvement etc., all be included within the protection range of the present utility model.
Claims (10)
1. narrow linewidth analog signal lasing light emitter, comprise the fiber laser module, it contains narrow cable and wide optical fiber laser, laser Drive and Control Circuit, laser electrical interface and laser optical interface, laser electrical interface connecting laser Drive and Control Circuit, narrow cable and wide optical fiber laser is furnished with tuning part, its output access laser optical interface; Main control system comprises industrial computer and the man-machine interface that is attached thereto and backboard, and DC power supply connects each parts of main control system; Industrial computer is connected with the laser electrical interface of fiber laser module through its backboard; It is characterized in that:
Be furnished with a plurality of slots that are connected with bus on the backboard of described main control system, this narrow linewidth analog signal lasing light emitter also has phase-modulation module and/or amplitude modulation(PAM) module;
Described phase-modulation module comprises phase-modulator, the phase-modulation control circuit, phase-modulation analog signal input electrical interface, phase-modulation electrical interface and phase-modulation input optical interface, phase-modulation output optical interface, industrial computer is connected with the phase-modulation electrical interface of phase-modulation module through its backboard, the phase-modulation electrical interface connects the phase-modulator control circuit, the phase-modulator control circuit connects phase-modulator, the phase-modulation analog input interface connects phase-modulator, and phase-modulation input optical interface is connected optical interface and is connected respectively phase-modulator with phase-modulation;
Described amplitude modulation(PAM) module comprises amplitude modulator, the amplitude modulator radio driver, amplitude modulation(PAM) analog signal input electrical interface, the amplitude modulation(PAM) control circuit, amplitude modulation(PAM) electrical interface and amplitude modulation(PAM) input optical interface, amplitude modulation(PAM) output optical interface, industrial computer is connected with the amplitude modulation(PAM) electrical interface of amplitude modulation(PAM) module through its backboard, the amplitude modulation(PAM) electrical interface connects the amplitude modulator control circuit, the amplitude modulator control circuit connects amplitude modulator, the amplitude modulation(PAM) analog input interface connects amplitude modulator through the amplitude modulator radio driver, and amplitude modulation(PAM) input optical interface is connected optical interface and is connected respectively amplitude modulator with amplitude modulation(PAM);
The laser of narrow cable and wide optical fiber laser output is through the phase-modulation input optical interface of its laser optical interface access phase-modulation module and/or the amplitude modulation(PAM) input optical interface of amplitude modulation(PAM) module.
2. narrow linewidth analog signal lasing light emitter according to claim 1 is characterized in that:
Described laser electrical interface, phase-modulation electrical interface and amplitude modulation(PAM) electrical interface are identical electronic connector, and each pin definitions of electronic connector all is consistent with communication bus protocol.
3. narrow linewidth analog signal lasing light emitter according to claim 1 is characterized in that:
Described narrow cable and wide optical fiber laser is the single longitudinal mode distributed feedback fibre laser, or single longitudinal mode distributed Bragg fiber laser.
4. narrow linewidth analog signal lasing light emitter according to claim 1 is characterized in that:
The humorous parts of described narrow cable and wide optical fiber laser institute's auxiliary tone are the piezoelectric ceramic fm components.
5. narrow linewidth analog signal lasing light emitter according to claim 1 is characterized in that:
The man-machine interface of described main control system is touch LCD screen.
6. narrow linewidth analog signal lasing light emitter according to claim 1 is characterized in that:
The operation wavelength of described phase-modulator module and amplitude modulator module is identical with narrow cable and wide optical fiber laser module operation wavelength.
7. each described narrow linewidth analog signal lasing light emitter in 6 according to claim 1 is characterized in that:
Described narrow linewidth analog signal lasing light emitter also is furnished with one or more in optical switch module, light power meter module, the adjustable optical attenuator module;
The optical switch module core component is optical switch, is furnished with optical switch electrical interface and optical switch input optical interface, optical switch output optical interface; Optical switch module is connected with the backboard of main control system through the optical switch electrical interface, and optical switch input optical interface connects fiber laser module laser optical interface;
Light power meter module core component is light power meter, is furnished with light power meter electrical interface and light power meter input optical interface, light power meter output optical interface; The light power meter module is connected with the backboard of main control system through the light power meter electrical interface, and luminous power photometric input interface connects fiber laser module laser optical interface;
Adjustable optical attenuator module core component is adjustable optical attenuator, is furnished with adjustable optical attenuator electrical interface and adjustable optical attenuator input optical interface, adjustable optical attenuator output optical interface; The adjustable optical attenuator module is connected with the backboard of main control system through the adjustable optical attenuator electrical interface, and adjustable optical attenuator light input interface connects fiber laser module laser optical interface.
8. narrow linewidth analog signal lasing light emitter according to claim 7 is characterized in that:
The laser work consistent wavelength of the operation wavelength of described optical switch, light power meter and adjustable optical attenuator and narrow cable and wide optical fiber laser.
9. narrow linewidth analog signal lasing light emitter according to claim 7 is characterized in that:
Described main control system is installed in the cabinet, a plurality of identical slots are arranged on the backboard, and any or several insert in arbitrary slot of backboards in fiber laser module, phase-modulation module, amplitude modulation(PAM) module, optical switch module, light power meter module and the adjustable optical attenuator module.
10. narrow linewidth analog signal lasing light emitter according to claim 9 is characterized in that:
The input optical interface of described fiber laser module, phase-modulation module, amplitude modulation(PAM) module, optical switch module, light power meter module and adjustable optical attenuator module and output optical interface are installed on respectively on the panel of each functional module.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220453536 CN202841144U (en) | 2012-09-06 | 2012-09-06 | Narrow linewidth analog signal laser source |
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| Application Number | Priority Date | Filing Date | Title |
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| CN 201220453536 CN202841144U (en) | 2012-09-06 | 2012-09-06 | Narrow linewidth analog signal laser source |
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| CN202841144U true CN202841144U (en) | 2013-03-27 |
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| CN 201220453536 Expired - Fee Related CN202841144U (en) | 2012-09-06 | 2012-09-06 | Narrow linewidth analog signal laser source |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103905125A (en) * | 2014-04-25 | 2014-07-02 | 中国电子科技集团公司第四十四研究所 | Simulative microwave optical link amplitude and phase regulating and controlling device |
| CN106646932A (en) * | 2016-12-29 | 2017-05-10 | 中国电子科技集团公司第三十四研究所 | DC bias operating point control loop of Maher Zeng Del intensity modulator |
| CN113227864A (en) * | 2019-08-08 | 2021-08-06 | 洛克利光子有限公司 | Panel-form pluggable remote laser source and system including same |
-
2012
- 2012-09-06 CN CN 201220453536 patent/CN202841144U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103905125A (en) * | 2014-04-25 | 2014-07-02 | 中国电子科技集团公司第四十四研究所 | Simulative microwave optical link amplitude and phase regulating and controlling device |
| CN103905125B (en) * | 2014-04-25 | 2016-09-14 | 中国电子科技集团公司第四十四研究所 | Simulated microwave optical link width phase regulation device |
| CN106646932A (en) * | 2016-12-29 | 2017-05-10 | 中国电子科技集团公司第三十四研究所 | DC bias operating point control loop of Maher Zeng Del intensity modulator |
| CN113227864A (en) * | 2019-08-08 | 2021-08-06 | 洛克利光子有限公司 | Panel-form pluggable remote laser source and system including same |
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Owner name: GUILIN DAWEI COMMUNICATIONS TECHNOLOGY CO., LTD. Free format text: FORMER NAME: GUILIN DAWEI COMMUNICATION TECHNOLOGY COMPANY |
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| CP03 | Change of name, title or address |
Address after: 541004 the Guangxi Zhuang Autonomous Region Guilin Qixing District, Liuhe Road, No. 98 Patentee after: GUILIN DAWEI COMMUNICATIONS TECHNOLOGY CO., LTD. Address before: 541004 the Guangxi Zhuang Autonomous Region Guilin, Liuhe Road, No. 98 Patentee before: GUILIN DAWEI COMMUNICATIONS TECHNOLOGY CO., LTD. |
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| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20130327 Termination date: 20200906 |