CN111193175A - Laser light source system for 5G communication network optical fiber transmission system - Google Patents
Laser light source system for 5G communication network optical fiber transmission system Download PDFInfo
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- CN111193175A CN111193175A CN201811350753.XA CN201811350753A CN111193175A CN 111193175 A CN111193175 A CN 111193175A CN 201811350753 A CN201811350753 A CN 201811350753A CN 111193175 A CN111193175 A CN 111193175A
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- laser
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- frequency
- optical fiber
- fiber transmission
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/10061—Polarization control
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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
- H01S3/10—Controlling the intensity, frequency, phase, polarisation or direction of the emitted radiation, e.g. switching, gating, modulating or demodulating
- H01S3/13—Stabilisation of laser output parameters, e.g. frequency or amplitude
Abstract
The invention discloses a laser light source system for a 5G communication network optical fiber transmission system, which comprises a laser, a coupling part and an optical fiber transmission channel, wherein one end of a laser cavity is provided with an output coupling end, laser is generated in the laser cavity, the coupling part is connected with the output coupling end, and a gain and power controller, a frequency tuning and phase controller, a frequency stabilizing system, an output power stabilizing system and an output polarization controller are arranged in the laser cavity. The invention ensures that the laser generates rated output power under various conditions through the gain and power controller; adjusting the frequency and the phase of the output laser according to the instruction through a frequency tuning and phase controller; the laser frequency is ensured to be stabilized in a specific range under various working conditions by a frequency stabilizing system; the output power stabilizing system ensures that the laser output power is stabilized in a specific range under various working conditions; and the output polarization controller ensures that the output laser meets the specific polarization degree requirement.
Description
Technical Field
The invention relates to the technical field of laser, in particular to a laser light source system for a 5G communication network optical fiber transmission system.
Background
Laser means a device capable of emitting laser light. Since the light emitting mechanism is different from that of a common light source, the laser has some excellent characteristics that the common light source does not have, such as good directivity, high brightness, good monochromaticity and coherence, and the like, which make the laser widely used in various fields such as industry, military, communication, medicine and scientific research. Since the first laser invented by meiman in 1960, the laser technology has been rapidly developed for more than 50 years, and the variety of lasers has been increasing. Lasers can be classified into solid lasers, gas lasers, semiconductor lasers, and dye lasers, etc., according to the properties of the gain medium. The he-ne laser is a kind of gas laser, and has the serial features of simple structure, low cost, high beam quality, etc. it is used in precise optical measurement, metering, sensing and other fields. Regardless of the laser used as the information carrier, the problem of how to load information onto the laser must be solved, and the process of loading information onto the laser is called modulation. There are many methods for implementing laser modulation, and the methods can be divided into amplitude modulation, frequency modulation, phase modulation, intensity modulation, and the like according to the nature of modulation. The frequency modulation or the phase modulation is a change in the frequency or the phase of the laser carrier wave with a change in the modulation signal, and both of the two modulation waves exhibit a change in the total phase angle, and are also collectively referred to as angle modulation. It can be seen that for laser frequency modulation, the angular frequency of the optical wave is no longer constant, but varies with the modulation signal, i.e. the laser frequency (or wavelength) is time-varying. The frequency modulation laser has wide application range and has important application in the fields of spectroscopy, photochemistry, integrated optics, precision metering, measurement and the like, so that the development of the frequency modulation laser with excellent performance has important practical significance.
There are roughly three methods for achieving laser frequency modulation: (1) changing the frequency of the laser output by changing the frequency corresponding to the low-loss region of the resonant cavity in some way or element (such as a grating); (2) the energy level of the laser transition is moved by changing certain external parameters (such as magnetic field, temperature and the like); (3) the laser frequency conversion and modulation are realized by utilizing the optical nonlinear effect. However, in practical application of these frequency modulation methods, due to the difference in gain and loss of the laser at different laser frequencies, the laser power will change significantly during the frequency modulation process, which will bring large errors to some applications of the frequency modulated laser. Aiming at the problems, the invention provides a laser light source system for a 5G communication network optical fiber transmission system, which has the advantages of simple principle, lower modulation voltage, good laser polarization performance and stable output power.
Disclosure of Invention
The invention aims to overcome the defects of the prior art and provides a laser light source system for a 5G communication network optical fiber transmission system.
The technical scheme of the invention is as follows: a laser light source system for a 5G communication network optical fiber transmission system comprises a laser, a coupling component and an optical fiber transmission channel, wherein laser output by the laser is transmitted from the optical fiber transmission channel through the coupling component, the laser comprises a laser cavity, one end of the laser cavity is provided with an output coupling end, laser is generated in the laser cavity and is output from the output coupling end, the coupling component is connected with the output coupling end, and a gain and power controller, a frequency tuning and phase controller, a frequency stabilizing system, an output power stabilizing system and an output polarization controller are arranged in the laser cavity; the gain and power controller ensures that the laser generates rated output power under various conditions; the frequency tuning and phase controller adjusts the frequency and phase of the output laser according to the instruction; the frequency stabilizing system ensures that the laser frequency is stabilized in a specific range under various working conditions; the output power stabilizing system ensures that the laser output power is stabilized in a specific range under various working conditions; the output polarization controller ensures that the output laser meets the specific polarization degree requirement.
Wherein the laser cavity is composed of optical and mechanical components such that laser cavity damage is less than gain to produce laser light.
Wherein, the output coupling end is composed of one or more optical mechanical parts.
The gain and power controller is provided with a gain chip, and the chip assembly is completed through a chip mounting and testing process after the gain chip is produced according to specific design parameters.
Wherein the frequency tuning and the frequency tuning of the phase controller are realized by an internal filtering device.
The frequency stabilizing system and the output power stabilizing system are designed according to performance parameters of the gain chip and the filter device.
And all parts of the laser are controlled by a circuit.
Compared with the prior art, the invention has the beneficial effects that: the exciter of the invention is composed of 7 parts, which respectively comprise a laser cavity, an output coupling end, a gain and power controller, a frequency tuning and phase controller, a frequency stabilizing system, an output power stabilizing system and an output polarization controller, wherein the gain and power controller ensures that the laser generates rated output power under various conditions; the frequency tuning and phase controller can adjust the frequency and the phase of the output laser according to instructions; the frequency stabilizing system ensures that the laser frequency is stabilized in a specific range under various working conditions; the output power stabilizing system ensures that the laser output power is stabilized in a specific range under various working conditions; the output polarization controller ensures that the output laser meets the specific polarization degree requirement.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.
Fig. 1 is a schematic system composition diagram of a laser light source system for a 5G communication network optical fiber transmission system according to an embodiment of the present invention.
Detailed Description
In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.
In order to explain the technical means of the present invention, the following description will be given by way of specific examples.
Examples
Fig. 1 shows a laser light source system for a 5G communication network optical fiber transmission system according to an embodiment of the present invention, which includes a laser 1, a coupling component 2, and an optical fiber transmission channel 3, where laser output by the laser 1 is transmitted from the optical fiber transmission channel 3 through the coupling component 2, and all components of the laser 1 are controlled by a circuit.
Specifically, the laser 1 includes a laser cavity 11, one end of the laser cavity 11 is provided with an output coupling end 12, the laser cavity 11 is composed of optical and mechanical components, so that the damage in the laser cavity 11 is smaller than the gain to generate laser, and the laser is output from the output coupling end 12, the coupling component 2 is connected with the output coupling end 12, the output coupling end 12 is composed of one or more optical mechanical components, preferably, a plurality of optical mechanical components, so as to efficiently couple the output laser to the optical fiber transmission channel 3, and the laser cavity 11 is also provided with a gain and power controller 13, a frequency tuning and phase controller 14, a frequency stabilizing system 15, an output power stabilizing system 16 and an output polarization controller 17; the gain and power controller 13 ensures that the laser 1 generates rated output power under various conditions, and the gain and power controller 13 is provided with a gain chip; the frequency tuning and phase controller 14 adjusts the frequency and phase of the output laser according to the instruction, and the frequency tuning and phase controller 14 is provided with a filter; the frequency stabilization system 15 ensures that the laser frequency is stabilized in a specific range under various working conditions; the output power stabilizing system 16 ensures that the laser output power is stabilized in a specific range under various working conditions; the output polarization controller 17 ensures that the output laser meets certain polarization degree requirements.
The design process of the system comprises the following steps: the first step is gain chip design, according to the requirements of the new generation of optical fiber network, after producing the chip according to the specific design parameters, the chip assembly is completed through the paster and the test process; the second step is frequency tuning, which is realized by an internal filter device; thirdly, designing a reliable frequency stabilization system 15 and a reliable output power stabilization system 16 according to the performance parameters of the gain chip and the filter device; finally, the laser cavity 11 is designed based on the parameters of the gain chip, the filter device, the frequency stabilization system 15 and the output power stabilization system 16.
The above description is only exemplary of the present invention and should not be taken as limiting the invention, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present invention should be included in the protection scope of the present invention.
Claims (7)
1. A laser light source system for a 5G communication network optical fiber transmission system is characterized in that: the laser comprises a laser, a coupling part and an optical fiber transmission channel, wherein laser output by the laser is transmitted from the optical fiber transmission channel through the coupling part, the laser comprises a laser cavity, one end of the laser cavity is provided with an output coupling end, laser is generated in the laser cavity and is output from the output coupling end, the coupling part is connected with the output coupling end, and a gain and power controller, a frequency tuning and phase controller, a frequency stabilizing system, an output power stabilizing system and an output polarization controller are arranged in the laser cavity; the gain and power controller ensures that the laser generates rated output power under various conditions; the frequency tuning and phase controller adjusts the frequency and phase of the output laser according to the instruction; the frequency stabilizing system ensures that the laser frequency is stabilized in a specific range under various working conditions; the output power stabilizing system ensures that the laser output power is stabilized in a specific range under various working conditions; the output polarization controller ensures that the output laser meets the specific polarization degree requirement.
2. The laser light source system for the optical fiber transmission system of the 5G communication network according to claim 1, wherein: the laser cavity is composed of optical and mechanical components, so that the laser cavity damage is smaller than the gain to generate laser.
3. The laser light source system for the optical fiber transmission system of the 5G communication network according to claim 1, wherein: the output coupling end is composed of one or more optical mechanical parts.
4. The laser light source system for the optical fiber transmission system of the 5G communication network according to claim 1, wherein: the gain and power controller is provided with a gain chip, and the chip assembly is completed through a chip mounting and testing process after the gain chip is produced according to specific design parameters.
5. The laser light source system for the optical fiber transmission system of the 5G communication network according to claim 1, wherein: the frequency tuning and the frequency tuning of the phase controller are realized by an internal filtering device.
6. The laser light source system for the optical fiber transmission system of the 5G communication network according to claim 1, wherein: the frequency stabilization system and the output power stabilization system are designed according to performance parameters of the gain chip and the filter device.
7. The laser light source system for the optical fiber transmission system of the 5G communication network according to claim 1, wherein: all parts of the laser are controlled by a circuit.
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| CN201811350753.XA CN111193175A (en) | 2018-11-14 | 2018-11-14 | Laser light source system for 5G communication network optical fiber transmission system |
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| CN201811350753.XA CN111193175A (en) | 2018-11-14 | 2018-11-14 | Laser light source system for 5G communication network optical fiber transmission system |
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| CN111193175A true CN111193175A (en) | 2020-05-22 |
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Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101114755A (en) * | 2006-07-28 | 2008-01-30 | 冲电气工业株式会社 | Carrier-suppressed optical pulse train generation method and mode-locked semiconductor laser diode for realizing this method |
| CN101180778A (en) * | 2005-03-30 | 2008-05-14 | 诺瓦光电技术公司 | Frequency stabilized vertical extended cavity surface emitting lasers |
| CN102629731A (en) * | 2012-02-14 | 2012-08-08 | 浙江嘉莱光子技术有限公司 | Control method for simultaneously stabilizing laser wavelength and power and control device thereof |
| CN104160640A (en) * | 2012-01-09 | 2014-11-19 | 阿托隆有限责任公司 | USPL-FSO lasercom point-to-point and point-to-multipoint optical wireless communication |
| CN104319623A (en) * | 2014-10-31 | 2015-01-28 | 中国科学院半导体研究所 | Ultra-narrow linewidth semiconductor laser unit based on polarization feedback |
-
2018
- 2018-11-14 CN CN201811350753.XA patent/CN111193175A/en active Pending
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101180778A (en) * | 2005-03-30 | 2008-05-14 | 诺瓦光电技术公司 | Frequency stabilized vertical extended cavity surface emitting lasers |
| CN101114755A (en) * | 2006-07-28 | 2008-01-30 | 冲电气工业株式会社 | Carrier-suppressed optical pulse train generation method and mode-locked semiconductor laser diode for realizing this method |
| CN104160640A (en) * | 2012-01-09 | 2014-11-19 | 阿托隆有限责任公司 | USPL-FSO lasercom point-to-point and point-to-multipoint optical wireless communication |
| CN102629731A (en) * | 2012-02-14 | 2012-08-08 | 浙江嘉莱光子技术有限公司 | Control method for simultaneously stabilizing laser wavelength and power and control device thereof |
| CN104319623A (en) * | 2014-10-31 | 2015-01-28 | 中国科学院半导体研究所 | Ultra-narrow linewidth semiconductor laser unit based on polarization feedback |
Non-Patent Citations (1)
| Title |
|---|
| 张宝富 等: "《光纤通信》", 28 February 2015, 西安电子科技大学出版社 * |
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Application publication date: 20200522 |