CN100486149C - Temperature controller for waveguide array grating style multi/demultiplexer - Google Patents
Temperature controller for waveguide array grating style multi/demultiplexer Download PDFInfo
- Publication number
- CN100486149C CN100486149C CNB02136351XA CN02136351A CN100486149C CN 100486149 C CN100486149 C CN 100486149C CN B02136351X A CNB02136351X A CN B02136351XA CN 02136351 A CN02136351 A CN 02136351A CN 100486149 C CN100486149 C CN 100486149C
- Authority
- CN
- China
- Prior art keywords
- module
- temperature
- awg
- signal
- signal processing
- 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 - Lifetime
Links
Images
Landscapes
- Optical Integrated Circuits (AREA)
Abstract
An apparatus, which effects the optical grating mold-match of waveguide array and the temperature control of wave-dividing instrument, relates to the techniques of the optical grating mold-match of waveguide array (AWG) and the temperature control of wave-dividing instrument, comprising: AWG module for multiplexing and de-multiplexing optical signals with multi-wavelengths; temperature collecting module for collecting temperature signals of the AWG module and comparing the signals with setting values: signal processing module for processing the signals collected by the preceding stage and back-fed by the post stage and outputting the result to the driving circuit; driving module for driving and heating AWG module.
Description
Technical field
The present invention relates to photosynthetic, the channel-splitting filter of optical wavelength-division multiplex equipment in the full optical communication network field, be specifically related to the temperature control of a kind of waveguide array grating (AWG) type channel splitting filter.
Background technology
AWG type channel splitting filter is based on the effect mechanism suitable with the balzed grating, groove binding that waveguide length difference is produced, and is made into various fiber waveguides on the substrate of one or more semiconductor silicon materials or photoelectric material (as LiNb03).The refractive index of semiconductor silicon material or photoelectric material is different under different temperatures, the every rising of temperature once, wavelength will be offset certain length.Under a certain temperature, the light of different wave length, the phase delay minimum in passing through the fiber waveguide of different length.Therefore AWG type channel splitting filter operate as normal whether is by the realization of control temperature.
The temperature control equipment of realizing AWG type channel splitting filter at present is to control the temperature of AWG with digit pulse, and has the circuit of refrigeration, this temperature control equipment more complicated, and debug difficulties costs an arm and a leg, but its control precision is higher; Be the temperature control equipment of controlling the AWG temperature by analog signal in addition, sort circuit is fairly simple, low price, but sort circuit generally only has the single-stage loop, so its control precision is not high, wayward.
Summary of the invention
Technical problem to be solved by this invention is to overcome the costing an arm and a leg of prior art, circuit complexity, shortcomings such as debug difficulties, utilize cheaper cost and simpler method, the reliable temperature control that realizes AWG type channel splitting filter can have a high cost performance.
The temperature controlled device of realization waveguide array grating type channel splitting filter of the present invention comprises:
The AWG module is used for multi-wavelength's light signal is carried out multiplexing and demultiplexing;
Temperature collect module is used for gathering the temperature level signal of AWG module, and compares with the value that configures, and result relatively outputs to signal processing module;
Signal processing module is to be used for previous stage signal that collects and the signal that the back one-level feeds back to are handled, and exports to drive circuit, with the temperature of control AWG module;
Driver module is used for driving heating AWG module;
Feedback module is used for gathering the heating current signal in the driver module, and amplification feeds back to signal processing module.
Adopt the present invention realize the temperature device of AWG type channel splitting filter can utilize maturation on the market, common product builds, the temperature-control circuit of relative other AWG type channel splitting filter, price comparison of the present invention is cheap, and its price also can descend with popularizing further of product.The control of the temperature of the AWG type channel splitting filter that the present invention realized makes under the normal temperature of the stable back of AWG about power saltus step 0.1dBm, and Wavelength stabilized do not have left and right sides drift phenomenon, high temperature (55
0C)/low temperature (5
0C) down about AWG power saltus step 0.2dBm.Satisfy the requirement of all optical communication system, verify that by experiment operation conditions is also highly stable.
Description of drawings
Fig. 1 is the temperature controlled device block diagram of waveguide array grating (AWG) type channel splitting filter.
Fig. 2 is signal processing module circuit theory diagrams among Fig. 1.
Fig. 3 is feedback module circuit theory diagrams among Fig. 1.
Embodiment
Below in conjunction with the drawings and specific embodiments technical scheme of the present invention is further described.
Can build AWG type channel splitting filter temperature-control circuit with reference to Fig. 1.
Temperature collect module, it is to be cooperated by an adjustable bridge balancing circuitry and ratio amplifying circuit to gather the AWG internal temperature, amplifies back output signal processing module;
Signal processing module is seen Fig. 2, it mainly is made up of proportional integral amplifying circuit 201, difference ratio integrating amplification circuit 202 two parts: proportional integral amplifying circuit 201, the AWG temperature signal that collects is amplified, and its integration time constant is relevant with the heating time that AWG promotes temperature; Difference ratio integrating amplification circuit 202, with current signal and the AWG temperature signal difference that feeds back, integration amplifies again, and reduce the effect of fluctuating in addition, multiplication factor in this difference ratio integrating amplification circuit, the coupling of the multiplication factor in integration time constant and the feedback module is to the stabilization time and the degree of stability decisive role of whole device;
Feedback module is seen Fig. 3, and it is to be cooperated by sampling resistor 302 and ratio amplifying circuit 301, gathers and amplifies AWG heating current signal, and the AWG temperature signal after amplifying with temperature collect module carries out the difference proportional integral and amplifies.The effect of feedback module is near AWG module temperature rises to the temperature spot that sets the time, temperature may be too high or too low, at this moment feedback module cooperates with temperature collect module, signal processing module, driver module, and it can be stabilized on the temperature spot that sets fast.
Driver module, it mainly is a switch, the signal after handling by signal processing module comes logical the ending of road of control switch, for AWG provides heating current.
This device can also can connect different supply power voltages at A, B, 3 of C according to the power consumption difference of AWG module, satisfies the operate as normal of the temperature controlled device of waveguide array grating type channel splitting filter.Only need regulator potentiometer during operation, just can reach necessary requirement.
Claims (3)
1, the temperature controlled device of a kind of realization waveguide array grating type channel splitting filter comprises:
The AWG module is used for multi-wavelength's light signal is carried out multiplexing and demultiplexing;
Temperature collect module is used for gathering the temperature level signal of AWG module, and compares with the value that configures, and result relatively outputs to signal processing module;
Signal processing module is to be used for previous stage signal that collects and the signal that the back one-level feeds back to are handled, and exports to driver module, with the temperature of control AWG module;
Driver module is used for driving heating AWG module;
Feedback module is used for gathering the heating current signal in the driver module, and amplification feeds back to signal processing module.
2, the temperature controlled device of realization waveguide array grating type channel splitting filter as claimed in claim 1 is characterized in that described signal processing module comprises:
The proportional integral amplifying circuit amplifies the AWG temperature signal that collects, and its integration time constant is relevant with the heating time that AWG promotes temperature;
Difference ratio integrating amplification circuit, with current signal and the AWG temperature signal difference that feeds back, integration amplifies again, the coupling of the multiplication factor in this difference ratio integrating amplification circuit in multiplication factor, integration time constant and the feedback module.
3, realization waveguide array grating type as claimed in claim 1 closes, the temperature controlled device of channel-splitting filter, it is characterized in that described feedback module comprises: sampling resistor and ratio amplifying circuit, the common cooperation gathered amplification AWG heating current signal, export this signal and give signal processing module, signal processing module carries out the amplification of difference proportional integral with the signal of feedback module output and the AWG temperature signal after the temperature collect module amplification, in the time of near AWG module temperature rises to the temperature spot that sets, feedback module and temperature collect module, signal processing module, driver module cooperates, to be stabilized in apace on the temperature spot that sets.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02136351XA CN100486149C (en) | 2002-07-30 | 2002-07-30 | Temperature controller for waveguide array grating style multi/demultiplexer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNB02136351XA CN100486149C (en) | 2002-07-30 | 2002-07-30 | Temperature controller for waveguide array grating style multi/demultiplexer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN1472908A CN1472908A (en) | 2004-02-04 |
| CN100486149C true CN100486149C (en) | 2009-05-06 |
Family
ID=34146421
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNB02136351XA Expired - Lifetime CN100486149C (en) | 2002-07-30 | 2002-07-30 | Temperature controller for waveguide array grating style multi/demultiplexer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN100486149C (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101907885A (en) * | 2010-07-05 | 2010-12-08 | 天津理工大学 | Test device of thermal insulation effect of bus type industrial pipeline |
| CN103345281B (en) * | 2013-06-27 | 2015-11-25 | 江苏亨通光网科技有限公司 | Temperature control device of high reliable wavelength division array optical waveguide |
| CN105700083B (en) * | 2016-03-23 | 2018-12-18 | 电子科技大学 | A kind of photon count statistic chip drives device |
| CN107562087B (en) * | 2016-06-30 | 2024-04-02 | 中兴通讯股份有限公司 | Temperature control method and device based on heater and optical module |
-
2002
- 2002-07-30 CN CNB02136351XA patent/CN100486149C/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| CN1472908A (en) | 2004-02-04 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN105515677B (en) | A kind of silicon integreted phontonics multi-wavelength light transceiver module | |
| US20020085266A1 (en) | Wavelength converter with an impedance matched electro-absorption modulator pair | |
| EP2091161B1 (en) | A method and device for stabilizing multi-channel optical signal wavelength | |
| CN101057424B (en) | Device and method for collectively monitoring a wavelength in DWDM system | |
| CN101377420B (en) | Wide spectrum optical fiber light source with stable optical power and average wave length | |
| CN106410604B (en) | Butterfly encapsulates SG-DBR semiconductor laser with tunable module control method | |
| CA2463500A1 (en) | Transmitter photonic integrated circuit (txpic) chip architectures and drive systems and wavelength stabilization for txpics | |
| CN104993873A (en) | Optical module | |
| CN107044890B (en) | Fluorescence fiber temperature measurement device and method adaptive over long distances | |
| CN100486149C (en) | Temperature controller for waveguide array grating style multi/demultiplexer | |
| EP1324526A3 (en) | Control method and device for optical filter | |
| US20020044343A1 (en) | Control system for optical amplifiers and optical fiber devices | |
| CN113381300A (en) | Linear frequency-sweeping laser based on four-channel parallel DFB laser array | |
| CN104914895B (en) | Distributed-type optical-fiber temperature measurement system gain stability control method | |
| CN103297147A (en) | SG-DBR (sampled grafting distributed bragg reflection) tunable laser device module and control method implemented by same | |
| WO1999050979A3 (en) | Optical fibre amplifier having a controlled gain | |
| EP1220388A4 (en) | Optical amplifier and optical amplifying method | |
| CN104733995A (en) | Wave length locking device | |
| CN101375189B (en) | Heat control for optical element | |
| CN102564573A (en) | Multi-wavelength laser power time division measurement method | |
| CN1020211C (en) | Spectrophotometer | |
| CN1061804C (en) | Method and system for control of wavelength-division multiplex fibre-optic communication wave length | |
| CN104238595A (en) | Optical performance monitor based on temperature control optical waveguide | |
| US20040105144A1 (en) | Optical amplifier with a spectral gain monitor using a volume phase grating | |
| CN202471240U (en) | Multi-wavelength laser power time measuring device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C10 | Entry into substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20090506 |
|
| CX01 | Expiry of patent term |