CN201577093U - High-level dynamically adjustable dispersion compensation equipment - Google Patents
High-level dynamically adjustable dispersion compensation equipment Download PDFInfo
- Publication number
- CN201577093U CN201577093U CN2010200497562U CN201020049756U CN201577093U CN 201577093 U CN201577093 U CN 201577093U CN 2010200497562 U CN2010200497562 U CN 2010200497562U CN 201020049756 U CN201020049756 U CN 201020049756U CN 201577093 U CN201577093 U CN 201577093U
- Authority
- CN
- China
- Prior art keywords
- dispersion compensation
- fiber
- dispersion
- controller
- port
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model relates to a high-level dynamically adjustable dispersion compensation equipment, which solves the problem that the prior art is only able to linearly change the chirp rate of a fiber grating. The utility model comprises a dispersion compensation module, a controllable power supply, a controller, a dispersion detector, a fiber coupler and a fiber circulator, wherein the fiber grating in the dispersion compensation module is in light connection with an II port of the fiber circulator through an optical fiber; an III port of the fiber circulator is in light connection with a single port of the fiber coupler; one port in double ports of the fiber coupler is in light connection with an input end of the dispersion detector; an output end of the dispersion detector is in signal connection with the input end of the controller; the output end of the controller is in signal connection with the input end of the controllable power supply; and the output end of multiple paths of circuit of the controllable power supply is in electric connection with a plurality of semiconductor refrigeration elements in the dispersion compensation module. The utility model module has small size and realizes the high-level dynamic adjustment for chromatic dispersion.
Description
Technical field
The utility model belongs to optical-fibre communications field, is applicable to the field of the dispersion compensation that needs miniaturization, high-order dynamic adjustable.Be particularly related to a kind of novel a plurality of semiconductor refrigerating elements that utilize and change the fiber grating chirp rate to regulate the dispersion compensation unit of chromatic dispersion.
Background technology
At optical-fibre communications field, along with improving constantly and the development of close wavelength-division multiplex technology of traffic rate and communication distance, chromatic dispersion has become the key factor that restriction optical fiber communication performance improves.The dispersion compensation technology can be divided into static compensation and dynamic compensation two classes at present.Light signal is propagated an extremely long segment distance in optical fiber after, its chromatic dispersion not only is subjected to the influence of fiber lengths, and also along with factors vary such as environmental temperature fluctuation and luminous powers, wherein both influences of back are dynamic and nonlinear often.Static chromatic dispersion compensation technique based on dispersion compensating fiber (DCF) has unadjustable and bulky shortcoming, just overcome the shortcoming of DCF technology based on the dynamic dispersion compensation technology of fiber grating, utilize the method for stress application or change temperature gradient, the chirp rate that dynamically changes fiber grating is to regulate chromatic dispersion, fiber grating is small-sized, can encapsulate easily.But the chirp rate of the change fiber grating that traditional regulation technology that utilizes stress application or change temperature gradient can only be linear can't compensate high-order dispersion, has limited practical application.
The semiconductor refrigerating element utilizes Pa Er card (Peltire) effect, can be with heat from element one end pump to the other end, the direction plus or minus of input current can be realized refrigeration or heating, the size of input current can determine the temperature change amount.The semiconductor refrigerating component structure is simple, and volume is little, and control is convenient, and thermotonus sensitivity and lifting are adjustable, are fit to very much be applied to the optical fiber grating dispersion compensating module of miniaturization dynamic adjustable.
Use a plurality of semiconductor refrigerating elements, arrange, regulate the temperature of each semiconductor refrigerating element, can change temperature field distribution curve on the fiber grating arbitrarily, realize the high-order dispersion compensation near the fiber grating end along Dispersion Compensation Fiber Gratings.
Summary of the invention
The purpose of this utility model is exactly at the deficiencies in the prior art, uses the technology of a plurality of semiconductor refrigerating elements change fiber grating chirp rate, has proposed a kind of dispersion compensation unit of high-order dynamic adjustable.
The utility model technical solution technical scheme that problem is taked is:
A kind of dispersion compensation unit of high-order dynamic adjustable comprises dispersion compensation module, controllable electric power, controller, chromatic dispersion detector, fiber coupler, optical fiber circulator;
Fiber grating in the dispersion compensation module is connected with the II mouth light of optical fiber circulator by optical fiber, the III mouth of optical fiber circulator is connected with the single port light of fiber coupler, a port in the dual-port of fiber coupler is connected with the input light of chromatic dispersion detector, the output of chromatic dispersion detector is connected with the input end signal of controller, the output of controller is connected with the controllable electric power input end signal, and the multichannel current output terminal of controllable electric power is electrically connected with a plurality of semiconductor refrigerating elements in the dispersion compensation module;
Described dispersion compensation module comprises bonding jumper, semiconductor refrigerating element, fin, the fiber grating of rectangular structure; Be set with a plurality of semiconductor refrigerating elements between bonding jumper and the fin, described bonding jumper is positioned at the top of semiconductor refrigerating element, and the end face of bonding jumper has the V-type groove on along its length between two parties, and V-type groove internal fixation is provided with fiber grating.
The groove depth of described V-type groove is d, and 0.2mm≤d≤1mm, the subtended angle of V-type groove are α, 60 °≤α≤120 °.
Described a plurality of semiconductor refrigerating element is for equidistantly to arrange along the length direction of module.
In the utility model, fiber grating is the core parts of dispersion compensation, can accurately regulate the dispersion compensation value in certain limit, is a kind of dispersion compensation device commonly used in the industry.Cooling module utilizes Pa Er card (Peltire) effect, and change temperature that can be more accurate within the specific limits is a kind of adjustment device commonly used in the industry.Fiber grating and cooling module all are small size devices, and the arrangement of a plurality of cooling modules can realize the high-order dispersion compensation, and the controllable electric power of controller control can be realized the dynamic adjustments of dispersion compensation easily.The utility model is applicable to the dispersion compensation of Networks of Fiber Communications, compares with traditional dispersion compensation schemes, and module size of the present utility model is very little, can accomplish the high-order of chromatic dispersion, dynamically adjustment.Be highly suitable for the link complexity, need the high speed optical fiber communication network of dynamic routing, and can accomplish when Networks of Fiber Communications upgrades, not need to change module hardware.
Description of drawings
Fig. 1 is a structural representation of the present utility model;
Fig. 2 is the structural representation of dispersion compensation module in the utility model.
Embodiment
As shown in Figure 1, a kind of dispersion compensation unit of high-order dynamic adjustable comprises dispersion compensation module 3, controllable electric power 4, controller 5, chromatic dispersion detector 6, fiber coupler 7, optical fiber circulator 2;
Fiber grating in the dispersion compensation module 3 is connected with the II mouth 2-2 light of optical fiber circulator 2 by optical fiber, the III mouth 2-3 of optical fiber circulator 2 is connected with the single port 7-1 light of fiber coupler 7, a port 7-2 in the dual-port of fiber coupler 7 is connected with the input light of chromatic dispersion detector 6, the output of chromatic dispersion detector 6 is connected with the input end signal of controller 5, the output of controller 5 is connected with controllable electric power 4 input end signals, and the multichannel current output terminal of controllable electric power 4 is electrically connected with a plurality of semiconductor chilling plates in the dispersion compensation module 3;
As shown in Figure 2, dispersion compensation module 3 comprises bonding jumper 3-1, semiconductor chilling plate 3-2, fin 3-3, the fiber grating 3-4 of rectangular structure; Be set with four semiconductor chilling plate 3-2 between bonding jumper 3-1 and the fin 3-3, bonding jumper 3-1 is positioned at the top of semiconductor chilling plate 3-2, the end face of bonding jumper 3-1 has the V-type groove on along its length between two parties, V-type groove internal fixation is provided with fiber grating 3-4, the V-type groove deep is that d is 0.5mm, and the subtended angle of V-type groove is that α is 90 °; Four semiconductor chilling plate 3-2 are for equidistantly to arrange along the length direction of dispersion compensation module 3;
The concrete course of work of this equipment is: the Networks of Fiber Communications 1 that at first end of the fiber grating 3-4 in the dispersion compensation module 3 is needed compensation of dispersion through the I mouth 2-1 access of optical fiber circulator 2, the other end is less than the diameter bending of 2mm, to guarantee minimum end face reflection, another port 7-3 in the dual-port of fiber coupler 7 inserts the Networks of Fiber Communications 1 that needs compensation of dispersion.
Need the light beam of dispersion compensation to incide by fiber optical circulator 2 on the fiber grating 3-4 of dispersion compensation module 3 then on the Networks of Fiber Communications 1, reflected by the fiber grating 3-4 of dispersion compensation module 3.Beam reflected is by fiber coupler 7, and wherein the beam splitting of a beam reflected part detects the dispersion parameters of light beam to chromatic dispersion detector 6.
At last chromatic dispersion detector 6 is detected the parameter that obtains and upload to controller 5, analyze by controller 5, and feeding back to the controllable electric power of controlling by controller 54, controller 5 is realized the dispersion compensation effect of the fiber grating 3-4 on the dispersion compensation module 3 by the injection current of regulating each semiconductor chilling plate 3-2.Reach default dispersion compensation value by repeatedly feeding back.Light beam through dispersion compensation passes through fiber coupler 7 reflected back Networks of Fiber Communications 1.
Claims (1)
1. the dispersion compensation unit of a high-order dynamic adjustable, comprise dispersion compensation module, controllable electric power, controller, the chromatic dispersion detector, fiber coupler and optical fiber circulator, it is characterized in that: the fiber grating in the dispersion compensation module is connected with the II mouth light of optical fiber circulator by optical fiber, the III mouth of optical fiber circulator is connected with the single port light of fiber coupler, a port in the dual-port of fiber coupler is connected with the input light of chromatic dispersion detector, the output of chromatic dispersion detector is connected with the input end signal of controller, the output of controller is connected with the controllable electric power input end signal, and the multichannel current output terminal of controllable electric power is electrically connected with a plurality of semiconductor refrigerating elements in the dispersion compensation module;
Described dispersion compensation module comprises bonding jumper, semiconductor refrigerating element, fin, the fiber grating of rectangular structure; Be set with a plurality of semiconductor refrigerating elements between bonding jumper and the fin, described bonding jumper is positioned at the top of semiconductor refrigerating element, and the end face of bonding jumper has the V-type groove on along its length between two parties, and V-type groove internal fixation is provided with fiber grating;
The groove depth of described V-type groove is d, and 0.2mm≤d≤1mm, the subtended angle of V-type groove are α, 60 °≤α≤120 °;
Described a plurality of semiconductor refrigerating element is for equidistantly to arrange along the length direction of module.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200497562U CN201577093U (en) | 2010-01-12 | 2010-01-12 | High-level dynamically adjustable dispersion compensation equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010200497562U CN201577093U (en) | 2010-01-12 | 2010-01-12 | High-level dynamically adjustable dispersion compensation equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201577093U true CN201577093U (en) | 2010-09-08 |
Family
ID=42696964
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010200497562U Expired - Fee Related CN201577093U (en) | 2010-01-12 | 2010-01-12 | High-level dynamically adjustable dispersion compensation equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201577093U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800607B (en) * | 2010-01-12 | 2013-04-17 | 浙江大学 | High-order dynamic adjustable dispersion compensation equipment and dispersion compensation method thereof |
| CN109031652A (en) * | 2018-09-11 | 2018-12-18 | 国网安徽省电力有限公司蚌埠供电公司 | A kind of low-loss optically communication dispersion compensator and its dispersion compensation method |
-
2010
- 2010-01-12 CN CN2010200497562U patent/CN201577093U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101800607B (en) * | 2010-01-12 | 2013-04-17 | 浙江大学 | High-order dynamic adjustable dispersion compensation equipment and dispersion compensation method thereof |
| CN109031652A (en) * | 2018-09-11 | 2018-12-18 | 国网安徽省电力有限公司蚌埠供电公司 | A kind of low-loss optically communication dispersion compensator and its dispersion compensation method |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN101800607B (en) | High-order dynamic adjustable dispersion compensation equipment and dispersion compensation method thereof | |
| CN103281132B (en) | The optical module being applied in wide temperature range and operating temperature control method thereof | |
| CN1157873C (en) | Method for compensating for polarisation mode dispersion and polarisation mode dispersion compensator | |
| CN101701854B (en) | Method for detecting junction temperature of chip of LED lamp | |
| CN108061980A (en) | Chirped fiber grating dispersion amount adjustment method, device and the system comprising the device | |
| CN101404509A (en) | Signal interference canceller and signal interference canceling method | |
| CN201577093U (en) | High-level dynamically adjustable dispersion compensation equipment | |
| CN102564643A (en) | Method for automatic calibration and variable separation sensing for quasi-distributed fiber grating sensing network and device thereof | |
| CN203164796U (en) | Temperature control apparatus for semiconductor laser | |
| CN103067074A (en) | Passive optical network optical power meter calibration device and calibration method | |
| CN103744454B (en) | Temperature-related variable optical attenuator attenuation control method | |
| CN101499822A (en) | Outputting power regulating system and method for terminal port on Ethernet switch | |
| CN103762502A (en) | Beam combining device for multicolor semiconductor laser devices | |
| CN203135694U (en) | IGBT module parallel-connection-output current equalization structure | |
| CN201008073Y (en) | Double frequency crystal temperature gradient compensation method temperature-controlled device | |
| CN102208737A (en) | Tunable multi-wavelength generation unit | |
| CN101340247B (en) | Method for compensating polarization mode dispersion in wave division multiplexing system | |
| CN103500915B (en) | Piezoelectric tunable laser real-time calibration system and method | |
| CN106207747A (en) | Parallel tunable laser module and the method realizing the compensation of each interchannel frequency fine tuning thereof | |
| CN103438998B (en) | A kind of PWM controls synthesis broad spectrum light source device | |
| CN206023790U (en) | Centralized fiber optical transceiver | |
| CN101029951A (en) | Dynamic-tuning dispersion compensator | |
| CN218240571U (en) | Temperature control adjustable filter based on grating | |
| CN103048809B (en) | Delay adjustable device based on active fiber grating coupler | |
| CN205620458U (en) | Measurement system is mended to cluster |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20100908 Termination date: 20110112 |