CN112422194B - All-optical network node picosecond pulse signal relative time difference corrector - Google Patents
All-optical network node picosecond pulse signal relative time difference corrector Download PDFInfo
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- CN112422194B CN112422194B CN202011301059.6A CN202011301059A CN112422194B CN 112422194 B CN112422194 B CN 112422194B CN 202011301059 A CN202011301059 A CN 202011301059A CN 112422194 B CN112422194 B CN 112422194B
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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
- H04B10/501—Structural aspects
- H04B10/503—Laser transmitters
- H04B10/505—Laser transmitters using external modulation
- H04B10/5057—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output
- H04B10/50577—Laser transmitters using external modulation using a feedback signal generated by analysing the optical output to control the phase of the modulating signal
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- H—ELECTRICITY
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- 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
- H01S3/10053—Phase control
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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
- H04B10/508—Pulse generation, e.g. generation of solitons
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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
- H04B10/516—Details of coding or modulation
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Abstract
A correcting instrument for the relative time difference of picosecond pulse signals of all-optical network nodes is suitable for the fields of optical fiber communication and all-optical networks. This correction appearance includes: the device comprises a mode-locked laser (1), a controllable optical splitter (2), a single-mode transmission fiber (3), a first picosecond pulse signal generator (01) and a second picosecond pulse signal generator (02), a first optical modulator (11) and a second optical modulator (12), a first adjustable laser (21) and a second adjustable laser (22), a first optical circulator (31) and a second optical circulator (32), a first adjustable gain controller (41) and a second adjustable gain controller (42), a first high-speed optical detector (51) and a second high-speed optical detector (52), a first optical coupler (611) and a fourth optical coupler (612) and a second optical coupler (621) and a second optical coupler (622), a first phase-shifted grating (71) and a second phase-shifted grating (72), a first pump light source (101) and a second pump light source (102), and a first all-optical network node processor (91) and a second all-optical network node processor (92).
Description
Technical Field
The invention relates to the field of optical fiber communication and all-optical networks, in particular to a correction instrument for the relative time difference of picosecond pulse signals of all-optical network nodes.
Background
The rapid development of the optical fiber communication technology and the gradual maturity of the multimedia communication technology, people have greater and greater requirements on high speed and broadband, and the all-optical signal processing technology is expected to break through the bottleneck of electronic rate, so that the transmission rate of a single channel in a network is greatly increased. However, with the development of all-optical networks, the amount of data to be processed by network nodes increases sharply, the data formats become more and more complex, the coordination among the nodes in the network is not coordinated, and data collision and network congestion often occur. In order to realize effective coordination and unified management among nodes of the network, the pulse signals to be processed in each node need to be monitored and corrected for relative time difference. At present, in an all-optical network, time difference monitoring usually adopts a method of setting redundant pilot frequency coding in a frame header for multi-frame information, but the method is difficult to realize the correction of the relative time difference of a single-frame picosecond pulse signal between network nodes.
Disclosure of Invention
The invention aims to solve the technical problem of overcoming the defects of the existing relative time difference monitoring and correcting mode and provides a relative time difference corrector for picosecond pulse signals of all-optical network nodes.
The technical scheme of the invention is as follows:
the utility model provides an all-optical network node picosecond pulse signal relative time difference correction appearance, includes mode-locked laser, controllable beam splitter, single mode transmission fiber, first, second picosecond pulse signal generator, first, second light modulator, first, second adjustable laser ware, first, second optical circulator, first, second adjustable gain controller, first, the high-speed optical detector of second, first to fourth 2 x 1 optical couplers, first, second phase shift grating, first, second pump light source, first, second all-optical network node treater.
The connections of the devices are as follows:
the output port of the mode-locked laser is connected with the input port of the controllable optical splitter, and the first output port and the second output port of the controllable optical splitter are respectively connected with the fourth ports of the first optical circulator and the second optical circulator; the first output ports of the first picosecond pulse signal generator and the second picosecond pulse signal generator are respectively connected with the input ports of the first optical modulator and the second optical modulator, the second output ports of the first picosecond pulse signal generator and the second picosecond pulse signal generator are respectively connected with the first ports of the first 2X 1 optical coupler and the second 2X 1 optical coupler, the output ports of the first optical modulator and the second optical modulator are respectively connected with the input ports of the first adjustable laser and the second adjustable laser, the output ports of the first adjustable laser and the second adjustable laser are respectively connected with the first ports of the first optical circulator and the second optical circulator, the second ports of the first optical circulator and the second optical circulator are connected through single-mode transmission optical fibers, the third ports of the first optical circulator and the second optical circulator are respectively connected with the input ports of the first adjustable gain controller and the second adjustable gain controller, the output ports of the first adjustable gain controller and the second adjustable gain controller are respectively connected with the input ports of the first high-speed optical detector and the second high-speed optical detector, and the first optical modulator, The output port of the second high-speed optical detector is respectively connected with the second ports of the first and second 2 x 1 optical couplers, the third ports of the first and second 2 x 1 optical couplers are respectively connected with one ends of the first and second phase shift gratings, the other ends of the first and second phase shift gratings are respectively connected with the first ports of the third and fourth 2 x 1 optical couplers, the second ports of the third and fourth 2 x 1 optical couplers are respectively connected with the output ports of the first and second pump light sources, the third ports of the third and fourth 2 x 1 optical couplers are respectively connected with the input ports of the first and second all-optical network node processors, and the output ports of the first and second all-optical network node processors are respectively connected with the input ports of the first and second picosecond pulse signal generators;
the first phase shift grating and the second phase shift grating have the same central wavelength and generate pi phase shift at the middle point of the gratings.
Drawings
FIG. 1 is a correction instrument for the relative time difference of picosecond pulse signals of all-optical network nodes.
Detailed Description
The invention is further described below with reference to the accompanying drawings.
Referring to fig. 1, the all-optical network node picosecond pulse signal relative time difference corrector includes a mode-locked laser 1, a controllable beam splitter 2, a single-mode transmission fiber 3, first and second picosecond pulse signal generators 01 and 02, first and second optical modulators 11 and 12, first and second tunable lasers 21 and 22, first and second optical circulators 31 and 32, first and second tunable gain controllers 41 and 42, first and second high-speed optical detectors 51 and 52, first to fourth 2 × 1 optical couplers 611, 612, 621 and 622, first and second phase- shift gratings 71 and 72, first and second pump light sources 101 and 102, and first and second all-optical network node processors 91 and 92.
The connections of the devices are as follows:
the output port of the mode-locked laser 1 is connected with the input port of the controllable optical splitter 2, and the first and second output ports of the controllable optical splitter 2 are respectively connected with the fourth ports of the first and second optical circulators 31 and 32; the first output ports of the first and second picosecond pulse signal generators 01 and 02 are respectively connected with the input ports of the first and second optical modulators 11 and 12, the second output ports of the first and second picosecond pulse signal generators 01 and 02 are respectively connected with the first ports of the first and second 2 × 1 optical couplers 611 and 612, the output ports of the first and second optical modulators 11 and 12 are respectively connected with the input ports of the first and second tunable lasers 21 and 22, the output ports of the first and second tunable lasers 21 and 22 are respectively connected with the first ports of the first and second optical circulators 31 and 32, the second ports of the first and second optical circulators 31 and 32 are connected with the single-mode transmission fiber 3, the third ports of the first and second optical circulators 31 and 32 are respectively connected with the input ports of the first and second tunable gain controllers 41 and 42, the first and second tunable gain controllers 41 and 41, 42 are respectively connected to input ports of the first and second high-speed photodetectors 51, 52, output ports of the first and second high-speed photodetectors 51, 52 are respectively connected to second ports of the first and second 2 × 1 optical couplers 611, 612, third ports of the first and second 2 × 1 optical couplers 611, 612 are respectively connected to one ends of the first and second phase-shifting gratings 71, 72, the other ends of the first and second phase-shifting gratings 71, 72 are respectively connected to first ports of the third and fourth 2 × 1 optical couplers 621, 622, second ports of the third and fourth 2 × 1 optical couplers 621, 622 are respectively connected to output ports of the first and second pump light sources 101, 102, third ports of the third and fourth 2 × 1 optical couplers 621, 622 are respectively connected to input ports of the first and second all-optical network node processors 91, 92, the first and second all-optical network node processors 91, 91, The output port of 92 is respectively connected with the input ports of the first picosecond pulse signal generator 01 and the second picosecond pulse signal generator 02;
the first and second phase shift gratings 71 and 72 have the same center wavelength and are shifted in phase by pi at the middle point of the gratings.
Claims (2)
1. The utility model provides an all optical network node picosecond pulse signal relative time difference correction appearance which characterized in that, this correction appearance includes: the device comprises a mode-locked laser (1), a controllable optical splitter (2), a single-mode transmission fiber (3), a first picosecond pulse signal generator (01) and a second picosecond pulse signal generator (02), a first optical modulator (11) and a second optical modulator (12), a first adjustable laser (21) and a second adjustable laser (22), a first optical circulator (31) and a second optical circulator (32), a first adjustable gain controller (41) and a second adjustable gain controller (42), a first high-speed optical detector (51) and a second high-speed optical detector (52), a first optical coupler (611), a second optical coupler (612), a second optical coupler (621), a first phase-shifted grating (71), a second phase-shifted grating (72), a first pump light source (101), a second pump light source (102), a first all-optical network node processor (91) and a second all-optical network node processor (92);
the connections of all devices forming the all-optical network node picosecond pulse signal relative time difference corrector are as follows:
the output port of the mode-locked laser (1) is connected with the input port of the controllable optical splitter (2), and the first and second output ports of the controllable optical splitter (2) are respectively connected with the fourth ports of the first and second optical circulators (31, 32); the first output ports of the first picosecond pulse signal generator (01) and the second picosecond pulse signal generator (02) are respectively connected with the input ports of the first optical modulator (11) and the second optical modulator (12), the second output ports of the first picosecond pulse signal generator (01) and the second picosecond pulse signal generator (02) are respectively connected with the first ports of the first 2X 1 optical coupler (611) and the second 2X 1 optical coupler (612), the output ports of the first optical modulator (11) and the second optical modulator (12) are respectively connected with the input ports of the first tunable laser (21) and the second tunable laser (22) and the output ports of the first tunable laser (21) and the second tunable laser (22) are respectively connected with the first ports of the first optical circulator (31) and the second optical circulator (32), the second ports of the first optical circulator (31) and the second optical circulator (32) are connected through a single-mode transmission optical fiber (3), and the first optical circulator (31) and the second optical circulator (31) are respectively, (32) The third ports of the first and second tunable gain controllers (41) and (42) are respectively connected with the input ports of the first and second tunable gain controllers (41) and (42), the output ports of the first and second tunable gain controllers (41) and (42) are respectively connected with the input ports of the first and second high-speed photodetectors (51) and (52), the output ports of the first and second high-speed photodetectors (51) and (52) are respectively connected with the second ports of the first and second 2 × 1 optical couplers (611) and (612), the third ports of the first and second 2 × 1 optical couplers (611) and (612) are respectively connected with one ends of the first and second phase-shifting gratings (71) and (72), the other ends of the first and second phase-shifting gratings (71) and (72) are respectively connected with the first ports of the third and fourth 2 × 1 optical couplers (621) and (622), and the third and fourth 2 × 1 optical couplers (621), (622) The second ports of the first and second all-optical network node processors (91) and (92) are respectively connected with the output ports of the first and second pump light sources (101) and (102), the third ports of the third and fourth 2 x 1 optical couplers (621) and (622) are respectively connected with the input ports of the first and second all-optical network node processors (91) and (92), and the output ports of the first and second all-optical network node processors (91) and (92) are respectively connected with the input ports of the first and second picosecond pulse signal generators (01) and (02).
2. The all-optical network node picosecond pulse signal relative time difference corrector of claim 1, wherein: the first and second phase shift gratings 71 and 72 have the same center wavelength and are shifted in phase by pi at the middle point of the gratings.
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| CN202011301059.6A CN112422194B (en) | 2020-11-19 | 2020-11-19 | All-optical network node picosecond pulse signal relative time difference corrector |
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| CN202011301059.6A CN112422194B (en) | 2020-11-19 | 2020-11-19 | All-optical network node picosecond pulse signal relative time difference corrector |
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| CN112422194B true CN112422194B (en) | 2022-02-08 |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202917803U (en) * | 2012-11-29 | 2013-05-01 | 合肥知常光电科技有限公司 | Tunable narrow linewidth picosecond pulse laser |
| CN105204266A (en) * | 2015-11-11 | 2015-12-30 | 北方工业大学 | Optical-control multi-waveform pulse synthesizer |
| CN105242477A (en) * | 2015-11-11 | 2016-01-13 | 北方工业大学 | Synthesizer for rectangular optical pulse with adjustable pulse width and amplitude |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CA2392662A1 (en) * | 2001-07-10 | 2003-01-10 | John Kenton White | All optical clock recovery |
| CN104319606B (en) * | 2014-11-17 | 2017-04-12 | 北方工业大学 | Light control dynamic ultra-short light pulse waveform synthesizer |
| CN105633773B (en) * | 2016-03-21 | 2019-10-22 | 北京交通大学 | A kind of ring cavity Q-switched pulse laser based on chirping phase-shift optical fiber grating |
-
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- 2020-11-19 CN CN202011301059.6A patent/CN112422194B/en active Active
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202917803U (en) * | 2012-11-29 | 2013-05-01 | 合肥知常光电科技有限公司 | Tunable narrow linewidth picosecond pulse laser |
| CN105204266A (en) * | 2015-11-11 | 2015-12-30 | 北方工业大学 | Optical-control multi-waveform pulse synthesizer |
| CN105242477A (en) * | 2015-11-11 | 2016-01-13 | 北方工业大学 | Synthesizer for rectangular optical pulse with adjustable pulse width and amplitude |
Non-Patent Citations (4)
| Title |
|---|
| Ultrashort optical pulse repetition rate multiplication based on two-core-fiber Mach-Zehnder interferometer;Dong, Xiaowei;《OPTICAL AND QUANTUM ELECTRONICS》;20180720;第50卷(第8期);全文 * |
| 基于FBG的全光任意波形发生器的设计及其实验研究;杨孟超;《中国优秀硕士学位论文全文数据库 信息科技辑》;20150315;I136-341 * |
| 基于相移光纤光栅微分器超短光脉冲整形;董小伟 等;《光子学报》;20160112;第1-6页 * |
| 基于相移光纤光栅积分特性的超短光脉冲整形;刘文楷 等;《中国激光》;20180310;第1-6页 * |
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