Method for simulating coaxially-packaged TOSA temperature distribution
A technology of temperature distribution and simulation method, which is applied in the field of optical communication, can solve problems affecting TOSA stability and reliability, affecting power, luminous efficiency wavelength, reducing device service life, etc., to achieve flexible optimization of step size and avoid large amount of calculation And fixed step size is too large, the effect of improving accuracy
Inactive Publication Date: 2015-03-25
JINAN LINKANGGUANG ELECTRONICS INFORMATION TECH
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Problems solved by technology
Since the working state of the laser is greatly affected by temperature, its high-temperature working performance directly affects the stability and reliability of TOSA. If the temperature is not controlled, it will cause heat accumulation and temperature rise, which will affect its output light power, luminous efficiency, wavelength and other properties, and will greatly reduce the service life of the device
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[0034] A simulation method for coaxial package TOSA temperature distribution, comprising the following steps:
[0035] 1) According to the obtained TOSA model parameters, the 3D modeling software SolidWorks is used to establish a coaxial package TOSA model. The TOSA model parameters include DFB lasers, substrates, thermistors, L-shaped substrates, thermoelectric coolers (TEC), bases, The device structure size and device material properties of the coupling lens; the present invention adopts CAD modeling software SolidWorks to set up a 3D model that reflects the real structure and thermal characteristics of the TOSA, and the internal structure diagram and section diagram are as follows: figure 1 , figure 2 shown;
[0036] 2) Based on the ANSYS software design optimization algorithm for simulation analysis, the analysis step size and thermal load are changed in real time during the simulation analysis process;
[0037] 3) Write a parametric design program, write the design pro...
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The invention provides a method for simulating coaxially-packaged TOSA temperature distribution. The method includes the following steps that a coaxially-packaged TOSA model is established through 3D modeling software SolidWorks according to acquired TOSA model parameters; an optimization algorithm for simulation analysis is designed based on ANSYS, and the step size and thermal loads are changed and analyzed in real time in the simulation analysis process; simulation under various conditions is achieved through a design program; a curve reflecting the change of the temperature of monitoring points along with time and a model internal temperature distribution graph are drawn. Thermodynamics simulation is conducted through the ANSYS, the stepping gradient is changed in real time through the step size optimization algorithm in the analysis and calculation process, the simulation speed is increased, final simulation accuracy is improved through control over the temperature close to that in a steady state, and the method has a guiding significance in TOSA packaging and internal optimization.
Description
technical field [0001] The invention relates to a method for simulating the temperature distribution of a coaxial package TOSA, which belongs to the technical field of optical communication. Background technique [0002] Coaxial packaged optical transmitter module (TOSA) has been widely used in optical fiber communication due to its advantages of low power consumption, easy alignment, high optical coupling efficiency, convenient modulation, low manufacturing cost and large-scale production. In the past ten years, TOSA with coaxial package 10Gbit / s has occupied most of the market with its high quality and cost performance. However, with the proposal of next-generation communication network standards, 21Gbit / s transmission rate Fiber Channel and Gigabit Ethernet have become the development trend of fiber optic networks, and 10Gbit / s TOSA will gradually fail to meet people's needs. At present, the manufacturing technology of distributed feedback (DFB) lasers has gradually matu...
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Inventor 冯德军刘希路武志刚
Owner JINAN LINKANGGUANG ELECTRONICS INFORMATION TECH