CN114296491A - Temperature control method and apparatus for optical device, storage medium, and electronic apparatus - Google Patents
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Abstract
The embodiment of the invention provides a temperature control method and device of an optical device, a storage medium and an electronic device, wherein the method comprises the following steps: acquiring a target temperature of frequency conversion of fundamental frequency light and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in a process of realizing frequency conversion of the fundamental frequency light, and the reference temperature is less than the target temperature; acquiring a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges; and adjusting the temperature of the target optical device from the current temperature to the target temperature through a target temperature control process. According to the invention, the problem of low temperature control efficiency of the optical device for performing fundamental frequency optical frequency conversion is solved, and the effect of the temperature control efficiency of the optical device for performing fundamental frequency optical frequency conversion is achieved.
Description
Technical Field
The embodiment of the invention relates to the field of optics, in particular to a temperature control method and device of an optical device, a storage medium and an electronic device.
Background
Frequency conversion of fundamental frequency light by using nonlinear crystals is the mainstream method for realizing visible light and ultraviolet light band laser output. The nonlinear crystal generally needs to realize phase matching at a specific temperature, and ideal conversion efficiency is obtained. The temperature of the nonlinear crystal must be precisely controlled or the conversion efficiency and output stability of the laser are severely affected. In the prior art, the temperature control of the nonlinear crystal mainly through a semiconductor refrigerator is mainly semiconductor refrigerator control or temperature control furnace control of a heating element to control the temperature, the control mode of the semiconductor refrigerator is long in time consumption for reaching higher temperature, the mode of the temperature control furnace can only carry out heating, when the temperature exceeds the specific temperature, the specific temperature can only be reached through heat dissipation, the temperature cannot be accurately controlled, the temperature control precision and the stability of the nonlinear crystal are poor, and the efficiency of the two modes for controlling the nonlinear crystal to reach the specific temperature is low.
In order to solve the problem of low temperature control efficiency of an optical device for performing fundamental frequency optical frequency conversion in the related art, no effective solution has been proposed at present.
Disclosure of Invention
Embodiments of the present invention provide a method and an apparatus for controlling a temperature of an optical device, a storage medium, and an electronic apparatus, so as to at least solve a problem in the related art that a temperature control efficiency of an optical device for performing fundamental frequency optical frequency conversion is low.
According to an embodiment of the present invention, there is provided a temperature control method of an optical device, including: acquiring a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in a process of realizing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
acquiring a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed by using the target temperature and the reference temperature, and the target temperature control flow is used for indicating a control process of a plurality of temperature control modules;
and adjusting the temperature of the target optical device from the current temperature to the target temperature through the target temperature control process.
In an exemplary embodiment, the obtaining of the target temperature control procedure corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges includes: determining the target temperature range within which the current temperature falls among the plurality of temperature ranges, wherein the plurality of temperature ranges includes: less than the reference temperature, greater than the target temperature, and greater than or equal to the reference temperature and less than the target temperature; and acquiring a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow with the corresponding relation as the target temperature control flow.
In an exemplary embodiment, the obtaining a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow having the corresponding relationship as the target temperature control flow includes:
under the condition that the target temperature range is smaller than the reference temperature, determining that the target temperature control process comprises controlling a first heating module in the plurality of temperature control modules to start heating; under the condition that the current temperature is heated to be greater than or equal to the reference temperature and less than the target temperature, controlling the first heating module to stop heating, and controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is higher than that of the first heating module;
under the condition that the target temperature range is larger than the target temperature, determining the target temperature control process comprises controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature is reduced to the target temperature;
and under the condition that the target temperature range is greater than or equal to the reference temperature and less than the target temperature, determining that the target temperature control process comprises controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is the temperature control module with the highest temperature control precision in the plurality of temperature control modules.
According to another embodiment of the present invention, there is provided a temperature control apparatus of an optical device, including: a processor, a plurality of temperature control modules and an optical device mounting slot, wherein,
the plurality of temperature control modules are respectively contacted with the optical device mounting groove, and the processor is respectively connected with the plurality of temperature control modules;
the processor is configured to obtain a target temperature for fundamental frequency optical frequency conversion and a reference temperature corresponding to the target temperature, where the target temperature is a working temperature of a target optical device mounted in the optical device mounting groove in a process of achieving the fundamental frequency optical frequency conversion, and the reference temperature is less than the target temperature; acquiring a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed by using the target temperature and the reference temperature; controlling the plurality of temperature control modules through the target temperature control process;
and the temperature control modules are used for responding to the control of the processor and adjusting the temperature of the target optical device from the current temperature to the target temperature.
In an exemplary embodiment, the processor is further configured to: determining the target temperature range within which the current temperature falls among the plurality of temperature ranges, wherein the plurality of temperature ranges includes: less than the reference temperature, greater than the target temperature, and greater than or equal to the reference temperature and less than the target temperature; and acquiring a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow with the corresponding relation as the target temperature control flow.
In one exemplary embodiment, the plurality of temperature control modules comprises: a first heating module, a second heating module, and a refrigeration module, wherein the processor is further configured to: under the condition that the target temperature range is smaller than the reference temperature, determining that the target temperature control process comprises controlling a first heating module in the plurality of temperature control modules to start heating; under the condition that the current temperature is heated to be greater than or equal to the reference temperature and less than the target temperature, controlling the first heating module to stop heating, and controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is higher than that of the first heating module;
under the condition that the target temperature range is larger than the target temperature, determining the target temperature control process comprises controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature is reduced to the target temperature; and under the condition that the target temperature range is greater than or equal to the reference temperature and less than the target temperature, determining that the target temperature control process comprises controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is the temperature control module with the highest temperature control precision in the plurality of temperature control modules.
In one exemplary embodiment, the temperature control apparatus includes: the heating device comprises a heating element and a semiconductor refrigerator, wherein the heating element comprises the first heating module, and the semiconductor refrigerator comprises the second heating module and the refrigerating module.
According to another embodiment of the present invention, there is also provided a temperature control apparatus of an optical device, including: the first acquisition module is used for acquiring a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in a process of realizing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
a second obtaining module, configured to obtain a target temperature control procedure corresponding to a target temperature range in which a current temperature of the target optical device falls within a plurality of temperature ranges, where the plurality of temperature ranges are constructed using the target temperature and the reference temperature, and the target temperature control procedure is used to instruct a control process on a plurality of temperature control modules;
and the adjusting module is used for adjusting the temperature of the target optical device from the current temperature to the target temperature through the target temperature control process.
According to a further embodiment of the present invention, there is also provided a computer-readable storage medium having a computer program stored thereon, wherein the computer program is arranged to perform the steps of any of the above method embodiments when executed.
According to yet another embodiment of the present invention, there is also provided an electronic device, including a memory in which a computer program is stored and a processor configured to execute the computer program to perform the steps in any of the above method embodiments.
According to the invention, a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature are obtained, wherein the target temperature is a working temperature of a target optical device in the process of realizing fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature; acquiring a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed by using target temperatures and reference temperatures, and the target temperature control flow is used for indicating a control process of a plurality of temperature control modules; and adjusting the temperature of the target optical device from the current temperature to the target temperature through a target temperature control process. Firstly, the working temperature of a target optical device in the process of realizing frequency conversion of fundamental frequency light and a reference temperature corresponding to the working temperature are obtained, different temperature ranges constructed by using the working temperature and the reference temperature correspond to different temperature control flows, the target temperature control flow is determined according to the target temperature range in which the current temperature falls, and then the determined target temperature control flow is adopted to adjust the temperature of the target optical device from the current temperature to the target temperature, because the temperature control mode of the target optical device can be dynamically adjusted according to the relation between the current temperature of the target optical device, the working temperature and the reference temperature, the adopted temperature control mode can be more suitable for the temperature adjustment requirement of the optical device, so that the temperature of the optical device can be adjusted more flexibly, the problem that the temperature control efficiency of an optical device for performing fundamental frequency optical frequency conversion is low can be solved, and the effect of improving the temperature control efficiency of the optical device for performing fundamental frequency optical frequency conversion is achieved.
Drawings
Fig. 1 is a block diagram of a hardware structure of a mobile terminal of a temperature control method of an optical device according to an embodiment of the present invention;
FIG. 2 is a flow chart of a method of temperature control of an optical device according to an embodiment of the present invention;
FIG. 3 is a temperature control flow diagram of a method of temperature control of an optical device according to an embodiment of the present invention;
FIG. 4 is a first schematic diagram of a temperature control apparatus of an optical device according to an embodiment of the present invention;
FIG. 5 is a second schematic diagram of a temperature control apparatus of an optical device according to an embodiment of the present invention;
FIG. 6 is a schematic of a water-cooled base of a temperature control apparatus of an optical device according to an embodiment of the present invention;
FIG. 7 is a third schematic diagram of a temperature control apparatus of an optical device according to an embodiment of the present invention;
FIG. 8 is a fourth schematic diagram of a temperature control arrangement of an optical device according to an embodiment of the present invention;
fig. 9 is a block diagram of a temperature control apparatus of an optical device according to an embodiment of the present invention.
Detailed Description
Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings in conjunction with the embodiments.
It should be noted that the terms "first," "second," and the like in the description and claims of the present invention and in the drawings described above are used for distinguishing between similar elements and not necessarily for describing a particular sequential or chronological order.
The method embodiments provided in the embodiments of the present invention may be executed in a mobile terminal, a computer terminal, or a similar computing device. Taking the example of operating on a mobile terminal, fig. 1 is a block diagram of a hardware structure of the mobile terminal of the temperature control method of an optical device according to an embodiment of the present invention. As shown in fig. 1, the mobile terminal may include one or more (only one shown in fig. 1) processors 102 (the processor 102 may include, but is not limited to, a processing device such as a microprocessor MCU or a programmable logic device FPGA), and a memory 104 for storing data, wherein the mobile terminal may further include a transmission device 106 for communication functions and an input-output device 108. It will be understood by those skilled in the art that the structure shown in fig. 1 is only an illustration, and does not limit the structure of the mobile terminal. For example, the mobile terminal may also include more or fewer components than shown in FIG. 1, or have a different configuration than shown in FIG. 1.
The memory 104 may be used for storing computer programs, for example, software programs and modules of application software, such as a computer program corresponding to the temperature control method of the optical device in the embodiment of the present invention, and the processor 102 executes various functional applications and data processing by running the computer programs stored in the memory 104, so as to implement the above-mentioned method. The memory 104 may include high speed random access memory, and may also include non-volatile memory, such as one or more magnetic storage devices, flash memory, or other non-volatile solid-state memory. In some examples, the memory 104 may further include memory located remotely from the processor 102, which may be connected to the mobile terminal over a network. Examples of such networks include, but are not limited to, the internet, intranets, local area networks, mobile communication networks, and combinations thereof.
The transmission device 106 is used for receiving or transmitting data via a network. Specific examples of the network described above may include a wireless network provided by a communication provider of the mobile terminal. In one example, the transmission device 106 includes a Network adapter (NIC), which can be connected to other Network devices through a base station so as to communicate with the internet. In one example, the transmission device 106 may be a Radio Frequency (RF) module, which is used for communicating with the internet in a wireless manner.
In the present embodiment, a method for controlling the temperature of an optical device is provided, and fig. 2 is a flowchart of a method for controlling the temperature of an optical device according to an embodiment of the present invention, as shown in fig. 2, the flowchart includes the following steps:
step S202, acquiring a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in a process of realizing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
step S204, obtaining a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed by using the target temperature and the reference temperature, and the target temperature control flow is used for indicating a control process of a plurality of temperature control modules;
step S206, adjusting the temperature of the target optical device from the current temperature to the target temperature through the target temperature control process.
Through the steps, firstly, the working temperature of the target optical device in the process of realizing the frequency conversion of the fundamental frequency light and the reference temperature corresponding to the working temperature are obtained, different temperature ranges in a plurality of temperature ranges constructed by using the working temperature and the reference temperature correspond to different temperature control flows, the target temperature control flow is determined according to the target temperature range in which the current temperature falls, then the determined target temperature control flow is adopted to adjust the temperature of the target optical device from the current temperature to the target temperature, and as the temperature control mode of the target optical device can be dynamically adjusted according to the relationship between the current temperature of the target optical device, the working temperature and the reference temperature, the adopted temperature control mode can be more suitable for the temperature adjustment requirement of the optical device, so that the temperature of the optical device can be adjusted more flexibly, therefore, the problem of low temperature control efficiency of the optical device for performing the fundamental frequency optical frequency conversion can be solved, and the effect of improving the temperature control efficiency of the optical device for performing the fundamental frequency optical frequency conversion can be achieved.
In the technical solution provided in step S202, the target optical device may be, but is not limited to, an optical device for implementing frequency conversion of fundamental frequency light and implementing laser output in visible light and ultraviolet light bands, and the target optical device may be, but is not limited to, a nonlinear crystal. The target temperature is an operating temperature of the target optical device in a process of achieving frequency conversion of fundamental frequency light, that is, the target optical device can achieve frequency conversion of fundamental frequency light at the target temperature, for example, the nonlinear crystal achieves phase matching at a specific temperature, and ideal frequency conversion efficiency is obtained. Taking a nonlinear crystal as LBO (Lithium triborate) as an example, the LBO nonlinear crystal needs to realize NCPM (Non-critical phase matching) at around 150 ℃.
Optionally, in this embodiment, the reference temperature is less than the target temperature, and the reference temperature may be determined according to the target temperature, for example, the target temperature is 150 ℃ and the reference temperature is 140 ℃.
In the technical solution provided in step S204, the plurality of temperature ranges are constructed by using the target temperature and the reference temperature, that is, the temperature ranges are determined according to the target temperature and the reference temperature, different temperature ranges correspond to different temperature control flows, and the correspondence relationship may be, but is not limited to, preset and stored. The target temperature control process is used to indicate the control processes of the plurality of temperature control modules, that is, the temperature of the target optical device can be controlled according to the control processes in the target temperature control process, and the target temperature control process can be, but is not limited to, the control processes of different temperature ranges corresponding to different temperature control modules.
Optionally, in this embodiment, the current temperature is a current temperature of the target optical device, and the target temperature control process may be, but not limited to, first obtaining the current temperature of the target optical device, then determining the target temperature control process according to a target temperature range in which the current temperature falls, and finally determining the target temperature control process according to the target temperature range. Determining the temperature control process according to the temperature range within which the current temperature of the target optical device falls can improve the efficiency of temperature control of the optical device.
In an alternative embodiment, the target temperature control flow corresponding to the target temperature range in which the current temperature of the target optical device falls in the plurality of temperature ranges may be obtained, but is not limited to: determining the target temperature range within which the current temperature falls among the plurality of temperature ranges, wherein the plurality of temperature ranges includes: less than the reference temperature, greater than the target temperature, and greater than or equal to the reference temperature and less than the target temperature; and acquiring a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow with the corresponding relation as the target temperature control flow.
Optionally, in this embodiment, the temperature range may be, but is not limited to, determined according to the reference temperature and the target temperature, and the plurality of temperature ranges may include, but is not limited to: a temperature range that is less than the reference temperature, greater than the target temperature, greater than or equal to the reference temperature and less than the target temperature, etc., and the temperature range within which the current temperature of the target optical device falls is determined, which may be but is not limited to being less than the reference temperature if the current temperature is less than the reference temperature based on the current temperature and the reference temperature and the target temperature; if the current temperature is greater than the target temperature, the target temperature range is greater than the target temperature, and if the current temperature is greater than or equal to the reference temperature and less than the target temperature, the target temperature range is greater than or equal to the reference temperature and less than the target temperature.
Optionally, in this embodiment, the different temperature ranges correspond to different temperature control flows, a target temperature range in which the current temperature falls is determined, and then a target control flow corresponding to the target temperature range is determined from the temperature range and the temperature control flow in the specific correspondence relationship.
In an optional embodiment, the temperature control process corresponding to the target temperature range may be obtained from the temperature range and the temperature control process having the corresponding relationship, but is not limited to be, as the target temperature control process, and may include one of the following three cases:
the first condition is as follows: under the condition that the target temperature range is smaller than the reference temperature, determining that the target temperature control process comprises controlling a first heating module in the plurality of temperature control modules to start heating; under the condition that the current temperature is heated to be greater than or equal to the reference temperature and less than the target temperature, controlling the first heating module to stop heating, and controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is higher than that of the first heating module;
case two: under the condition that the target temperature range is larger than the target temperature, determining the target temperature control process comprises controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature is reduced to the target temperature;
case three: and under the condition that the target temperature range is greater than or equal to the reference temperature and less than the target temperature, determining that the target temperature control process comprises controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is the temperature control module with the highest temperature control precision in the plurality of temperature control modules.
Optionally, in this embodiment, the target temperature range may include, but is not limited to, temperature ranges smaller than the reference temperature, greater than the target temperature, greater than or equal to the reference temperature and smaller than the target temperature, and the like, where the target temperature ranges are different and the corresponding target temperature control flows are different. Controlling the heating and/or cooling modules in the plurality of temperature control modules to perform heating and/or cooling until the current temperature of the target optical device reaches the target temperature, wherein the current temperature to the target temperature may include, but is not limited to: the current temperature is the target temperature, the current temperature is the temperature within the error range of the target temperature, and the current temperature is the temperature within the error range of the target temperature.
If the target temperature range is less than the reference temperature, i.e. the current temperature of the target optical device is less than the reference temperature, the corresponding target temperature control procedure may include, but is not limited to: the first heating module is controlled to start heating, when the current temperature of the target optical device is heated to be greater than or equal to the reference temperature and smaller than the target temperature, the first heating module stops heating, the second heating module starts heating until the current temperature is heated to the target temperature, and as the temperature control precision of the second heating module is higher than that of the first heating module, the first heating module is controlled to heat the target optical device to the reference temperature, and then the second heating module with the temperature control precision is used for heating the target optical device from the reference temperature to the target temperature. The current temperature of the target optical device can be rapidly heated to the reference temperature by using the first heating module with lower temperature control precision, and then the target optical device is heated to the target temperature from the reference temperature by using the second heating module with temperature control precision, so that the current temperature of the target optical device can be rapidly and accurately controlled to the target temperature.
If the target temperature range is greater than the target temperature, i.e. the current temperature of the target optical device is greater than the target temperature, the corresponding target temperature control procedure may include, but is not limited to: and controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature of the target optical device is reduced to a target range.
If the target temperature range is greater than or equal to the reference temperature and less than the target temperature, i.e. the current temperature of the target optical device is greater than or equal to the reference temperature and less than the target temperature, the corresponding target temperature control procedure may include, but is not limited to: and controlling a second heating module with the highest temperature control precision in the plurality of temperature control modules to start heating until the current temperature of the target optical device is heated to the target temperature.
Fig. 3 is a temperature control flowchart of a temperature control method of an optical device according to an embodiment of the present invention, and as shown in fig. 3, taking an example that a target optical device is a nonlinear crystal, the nonlinear crystal is mounted on a crystal temperature-equalizing heat sink, the temperature of the nonlinear crystal is the temperature of the crystal temperature-equalizing heat sink, the detected temperature of the crystal temperature-equalizing heat sink is also the temperature of the nonlinear crystal, a final target temperature (i.e., the target temperature) is T0, an intermediate temperature (i.e., the reference temperature) is T1, and the temperature of the crystal temperature-equalizing heat sink (i.e., the current temperature) is T2, and when the temperature is detected by a temperature sensor, the heating element (i.e., the first heating block) starts to operate after temperature control starts, and when the temperature sensor 1 detects that T2 is greater than or equal to T1, the heating element stops operating. At this time, the TEC (thermal electric cooler) (i.e., the second heating module and the cooling module) starts to work, and controls the temperature T2 of the crystal uniform temperature heat sink to approach T0 infinitely through a PID (process integration differential, control algorithm combining three links of Proportion, integral and derivative). When T1 is not less than T2 and is less than T0 (namely the temperature is greater than or equal to the reference temperature and is less than the target temperature), the heating element stops working, the TEC starts heating, and the T2 is controlled to approach T0 infinitely; when T2 > T0 (i.e., above the target temperature), the heating element stops operating, the TEC starts cooling, the control T2 infinitely approaches T0, when T2 < T1 (i.e., above the reference temperature), the heating element heats, the control T2 approaches T1, and after the temperature of the nonlinear crystal changes, the process can be repeated to control the temperature of the nonlinear crystal to T0 again.
In the technical solution provided in step S206, the temperature of the target optical device may be adjusted from the current temperature to the target temperature through a target temperature control process, the target temperature may be, but is not limited to, the target temperature, or a temperature within a range allowed by an operating temperature of the optical device during the implementation of fundamental frequency conversion, and may be, but is not limited to, adjusted from the current temperature to the target temperature through the following manners: heating, cooling, heating and cooling.
In this embodiment, there is provided a temperature control apparatus for an optical device, and fig. 4 is a first schematic diagram of the temperature control apparatus for an optical device according to the embodiment of the present invention, as shown in fig. 4, the apparatus includes: the temperature control system comprises a processor 42, a plurality of temperature control modules 44 and an optical device installation groove 46, wherein the plurality of temperature control modules 44 are respectively contacted with the optical device installation groove 46, and the processor 42 is respectively connected with the plurality of temperature control modules 44;
the processor 42 is configured to obtain a target temperature for frequency conversion of fundamental frequency light and a reference temperature corresponding to the target temperature, where the target temperature is a working temperature of a target optical device installed in the optical device installation slot in a process of implementing frequency conversion of the fundamental frequency light, and the reference temperature is less than the target temperature; acquiring a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed by using the target temperature and the reference temperature; controlling the plurality of temperature control modules through the target temperature control process;
the plurality of temperature control modules 44 are configured to adjust the temperature of the target optical device from the current temperature to the target temperature in response to control of the processor.
Optionally, in this embodiment, the plurality of temperature control modules 44 may include, but are not limited to: a temperature control module 44-1, a temperature control module 44-2, a temperature control module 44-3, and a temperature control module 44-n (n is a positive integer).
By the device, the temperature control module is contacted with the optical device mounting groove, so that the temperature control module can conveniently transmit temperature to the target optical device in the optical device mounting groove and better control the temperature of the target optical device, the processor is connected with each temperature control module in the plurality of temperature control modules and is convenient to control the temperature control module to heat and/or refrigerate so that the current temperature of the target optical device is adjusted to the target temperature, the processor can obtain the target temperature, the reference temperature and the current temperature of the target optical device for realizing the frequency conversion of the fundamental frequency light of the target optical device, and according to the relationship among the current temperature, the target temperature and the reference temperature, the method for controlling the temperature of the target optical device can be dynamically adjusted, so that the adopted temperature control method can be more suitable for the temperature adjustment requirement of the optical device, and the temperature of the optical device can be adjusted more flexibly. The problem that the temperature control efficiency of an optical device for performing fundamental frequency optical frequency conversion is low can be solved, and the effect of improving the temperature control efficiency of the optical device for performing fundamental frequency optical frequency conversion is achieved.
In an alternative embodiment, the processor may be, but is not limited to being, further configured to: determining the target temperature range within which the current temperature falls among the plurality of temperature ranges, wherein the plurality of temperature ranges includes: less than the reference temperature, greater than the target temperature, and greater than or equal to the reference temperature and less than the target temperature; and acquiring a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow with the corresponding relation as the target temperature control flow.
Optionally, in this embodiment, the processor may determine, but is not limited to, a current temperature of the target optical device, fall within a target temperature range of the plurality of temperature ranges, and then determine the target temperature control flow according to the falling target temperature range.
In an alternative embodiment, the plurality of temperature control modules may include, but are not limited to: a first heating module, a second heating module, and a refrigeration module, the processor being further configured to perform any one of the following three conditions:
the first condition is as follows: under the condition that the target temperature range is smaller than the reference temperature, determining that the target temperature control process comprises controlling a first heating module in the plurality of temperature control modules to start heating; under the condition that the current temperature is heated to be greater than or equal to the reference temperature and less than the target temperature, controlling the first heating module to stop heating, and controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is higher than that of the first heating module;
case two: under the condition that the target temperature range is larger than the target temperature, determining the target temperature control process comprises controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature is reduced to the target temperature;
case three: and under the condition that the target temperature range is greater than or equal to the reference temperature and less than the target temperature, determining that the target temperature control process comprises controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is the temperature control module with the highest temperature control precision in the plurality of temperature control modules.
Optionally, in this embodiment, the plurality of temperature control modules include: the processor controls the first heating module, the second heating module and the refrigerating module to work according to the target temperature range until the current temperature of the target optical device reaches the target temperature or the target temperature range.
In an alternative embodiment, the temperature control device comprises: the heating device comprises a heating element and a semiconductor refrigerator, wherein the heating element comprises the first heating module, and the semiconductor refrigerator comprises the second heating module and the refrigerating module.
Optionally, in this embodiment, the heating element includes a first heating module, and the heating element may include, but is not limited to, a device capable of heating, such as: heating rods, heating plates, heating wires, and the like. The semiconductor refrigerator comprises the second heating module and the refrigerating module, and not only can be heated, but also can be refrigerated, so that the bidirectional temperature control with higher temperature control precision is realized.
It is to be understood that the above-described embodiments are only a few, but not all, embodiments of the present invention.
The present invention will be described in detail with reference to the following examples:
fig. 5 is a second schematic diagram of a temperature control apparatus of an optical device according to an embodiment of the present invention, as shown in fig. 5, the temperature control apparatus includes: the device comprises an optical device mounting groove, a heating element, a TEC, a temperature sensor, a water-cooling base, a crystal temperature-equalizing heat sink and a heat shield. The water-cooling base is provided with a TEC limit groove, a water inlet and outlet and a temperature sensor 2 mounting hole; the TEC is arranged in a limiting groove of the water-cooling base, and a graphite heat-conducting gasket is filled between the TECs; the crystal temperature-equalizing heat sink is arranged on the TEC, a graphite heat-conducting gasket is filled between the TEC and the crystal temperature-equalizing heat sink, the crystal temperature-equalizing plate is not contacted with the water-cooling base, and the crystal temperature-equalizing plate is provided with a crystal, a heating element and a temperature sensor mounting hole.
The crystal temperature-equalizing heat sink is silicon carbide, and can be any one of aluminum, aluminum alloy, copper and copper alloy. The heat shield is formed by a glass fiber plate or a polytetrafluoroethylene plate with a porous cavity structure inside. The temperature sensor can be a thermistor, a thermocouple, a resistance temperature detector, and the like which can realize temperature detection sensing.
The crystal temperature-equalizing heat sink can be a cuboid structure, the axial direction of the crystal temperature-equalizing heat sink is provided with a square through hole structure (namely the optical device mounting groove) for mounting a crystal (namely the target optical device), and the periphery of the inner wall of the through hole is provided with small holes which are communicated with the surface of the temperature-equalizing heat sink and used as glue injection holes for fixing the crystal; the temperature-equalizing heat sink is provided with at least 1 heating element and 1 temperature sensor mounting hole. The bottom of the heat shield is connected with the water-cooling base, and the crystal temperature-equalizing heat sink component is arranged inside the heat shield.
In the whole working process of the device, the heat shield limits the heat exchange between the crystal temperature-equalizing heat sink and the outside as much as possible, so that the TEC can maintain the thermal balance of the nonlinear crystal after the heating element stops working, and the temperature of the nonlinear crystal is always maintained at T0. The water-cooling base maintains water supply, and the temperature of the water-cooling base is monitored in real time through the temperature sensor 2 to set a proper water temperature, so that the reverse side of the TEC is kept in a relatively stable environment temperature. The device can quickly reach higher target temperature and still has higher temperature control precision at higher temperature.
In this embodiment, a heating element and a TEC are cascaded to control the temperature, the heating element is used to heat the temperature to a temperature near a target temperature (i.e., the reference temperature) and feed back the temperature in real time, and the TEC is used to control the temperature at the end of the heating element on the basis of the temperature, so as to realize accurate control of a higher temperature.
Fig. 6 is a schematic diagram of a water-cooling base of a temperature control device of an optical device according to an embodiment of the present invention, and as shown in fig. 6, a water channel structure is provided inside the water-cooling base, the water channel structure is made of silicon carbide, and may be any one of aluminum, aluminum alloy, copper, and copper alloy, the water channel of the water-cooling base is an S-shaped water channel, and the upper surface of the water-cooling base is provided with a heat shield fixing threaded hole, a TEC limiting groove, and a water inlet and a water outlet.
Fig. 7 is a third schematic diagram of a temperature control apparatus of an optical device according to an embodiment of the present invention, as shown in fig. 7, based on fig. 5, an air interlayer or a vacuum interlayer is formed between the crystal temperature-equalizing heat sink and the heat shield by separating contact, so that heat exchange between the crystal temperature-equalizing heat sink and the outside can be reduced, influence of external temperature change on the crystal temperature-equalizing heat sink is reduced, and temperature control accuracy and stability of the temperature control apparatus are improved.
Fig. 8 is a fourth schematic diagram of a temperature control device of an optical device according to an embodiment of the present invention, as shown in fig. 8, on the basis of fig. 7, a heating element may be added at a vertically symmetrical position of a crystal mounting hole, a water-cooling base and a TEC are added at an upper symmetrical position of a crystal temperature-equalizing heat sink, and a temperature gradient generated by different distances between each part of a nonlinear crystal and a temperature control module (the heating element and the TEC) is reduced, so that the nonlinear crystal has better temperature uniformity, and the frequency conversion efficiency and stability of the nonlinear crystal to fundamental frequency light are improved.
Through the above description of the embodiments, those skilled in the art can clearly understand that the method according to the above embodiments can be implemented by software plus a necessary general hardware platform, and certainly can also be implemented by hardware, but the former is a better implementation mode in many cases. Based on such understanding, the technical solutions of the present invention may be embodied in the form of a software product, which is stored in a storage medium (e.g., ROM/RAM, magnetic disk, optical disk) and includes instructions for enabling a terminal device (e.g., a mobile phone, a computer, a server, or a network device) to execute the method according to the embodiments of the present invention.
In this embodiment, a temperature control apparatus of an optical device is further provided, and the apparatus is used to implement the above embodiments and preferred embodiments, and the description of the apparatus is omitted. As used below, the term "module" may be a combination of software and/or hardware that implements a predetermined function. Although the means described in the embodiments below are preferably implemented in software, an implementation in hardware, or a combination of software and hardware is also possible and contemplated.
Fig. 9 is a block diagram of a temperature control apparatus of an optical device according to an embodiment of the present invention, as shown in fig. 9, the apparatus including:
a first obtaining module 92, configured to obtain a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, where the target temperature is an operating temperature of a target optical device in a process of implementing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
a second obtaining module 94, configured to obtain a target temperature control procedure corresponding to a target temperature range in which a current temperature of the target optical device falls within a plurality of temperature ranges, where the plurality of temperature ranges are constructed using the target temperature and the reference temperature, and the target temperature control procedure is used to instruct a control process on a plurality of temperature control modules;
an adjusting module 96, configured to adjust the temperature of the target optical device from the current temperature to the target temperature through the target temperature control procedure.
By the device, the working temperature of the target optical device in the process of realizing frequency conversion of the fundamental frequency light and the reference temperature corresponding to the working temperature are firstly obtained, different temperature ranges in a plurality of temperature ranges constructed by using the working temperature and the reference temperature correspond to different temperature control flows, the target temperature control flow is determined according to the target temperature range in which the current temperature falls, and then the determined target temperature control flow is adopted to adjust the temperature of the target optical device from the current temperature to the target temperature, because the temperature control mode of the target optical device can be dynamically adjusted according to the relation between the current temperature of the target optical device, the working temperature and the reference temperature, the adopted temperature control mode can be more suitable for the temperature adjustment requirement of the optical device, and the temperature of the optical device can be adjusted more flexibly, therefore, the problem of low temperature control efficiency of the optical device for performing the fundamental frequency optical frequency conversion can be solved, and the effect of improving the temperature control efficiency of the optical device for performing the fundamental frequency optical frequency conversion can be achieved.
In an optional embodiment, the second obtaining module includes:
a determination unit configured to determine the target temperature range in which the current temperature falls among the plurality of temperature ranges, wherein the plurality of temperature ranges include: less than the reference temperature, greater than the target temperature, and greater than or equal to the reference temperature and less than the target temperature;
and the acquisition unit is used for acquiring a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow with the corresponding relation as the target temperature control flow.
In an optional embodiment, the obtaining unit is configured to:
under the condition that the target temperature range is smaller than the reference temperature, determining that the target temperature control process comprises controlling a first heating module in the plurality of temperature control modules to start heating; under the condition that the current temperature is heated to be greater than or equal to the reference temperature and less than the target temperature, controlling the first heating module to stop heating, and controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is higher than that of the first heating module;
under the condition that the target temperature range is larger than the target temperature, determining the target temperature control process comprises controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature is reduced to the target temperature;
and under the condition that the target temperature range is greater than or equal to the reference temperature and less than the target temperature, determining that the target temperature control process comprises controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is the temperature control module with the highest temperature control precision in the plurality of temperature control modules.
It should be noted that, the above modules may be implemented by software or hardware, and for the latter, the following may be implemented, but not limited to: the modules are all positioned in the same processor; alternatively, the modules are respectively located in different processors in any combination.
Embodiments of the present invention also provide a computer-readable storage medium having a computer program stored thereon, wherein the computer program is arranged to perform the steps of any of the above-mentioned method embodiments when executed.
In the present embodiment, the above-mentioned computer-readable storage medium may be configured to store a computer program for executing the steps of:
s1, acquiring a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in the process of realizing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
s2, obtaining a target temperature control procedure corresponding to a target temperature range in which the current temperature of the target optical device falls within a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed using the target temperature and the reference temperature, and the target temperature control procedure is used to instruct a control process for a plurality of temperature control modules;
s3, adjusting the temperature of the target optical device from the current temperature to the target temperature through the target temperature control process.
In an exemplary embodiment, the computer-readable storage medium may include, but is not limited to: various media capable of storing computer programs, such as a usb disk, a Read-Only Memory (ROM), a Random Access Memory (RAM), a removable hard disk, a magnetic disk, or an optical disk.
Embodiments of the present invention also provide an electronic device comprising a memory having a computer program stored therein and a processor arranged to run the computer program to perform the steps of any of the above method embodiments.
In an exemplary embodiment, the electronic apparatus may further include a transmission device and an input/output device, wherein the transmission device is connected to the processor, and the input/output device is connected to the processor.
In an exemplary embodiment, the processor may be configured to execute the following steps by a computer program:
s1, acquiring a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in the process of realizing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
s2, obtaining a target temperature control procedure corresponding to a target temperature range in which the current temperature of the target optical device falls within a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed using the target temperature and the reference temperature, and the target temperature control procedure is used to instruct a control process for a plurality of temperature control modules;
s3, adjusting the temperature of the target optical device from the current temperature to the target temperature through the target temperature control process.
For specific examples in this embodiment, reference may be made to the examples described in the above embodiments and exemplary embodiments, and details of this embodiment are not repeated herein.
It will be apparent to those skilled in the art that the various modules or steps of the invention described above may be implemented using a general purpose computing device, they may be centralized on a single computing device or distributed across a network of computing devices, and they may be implemented using program code executable by the computing devices, such that they may be stored in a memory device and executed by the computing device, and in some cases, the steps shown or described may be performed in an order different than that described herein, or they may be separately fabricated into various integrated circuit modules, or multiple ones of them may be fabricated into a single integrated circuit module. Thus, the present invention is not limited to any specific combination of hardware and software.
The above description is only a preferred embodiment of the present invention and is not intended to limit the present invention, and various modifications and changes may be made by those skilled in the art. Any modification, equivalent replacement, or improvement made within the principle of the present invention should be included in the protection scope of the present invention.
Claims (10)
1. A method of temperature control of an optical device, comprising:
acquiring a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in a process of realizing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
acquiring a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed by using the target temperature and the reference temperature, and the target temperature control flow is used for indicating a control process of a plurality of temperature control modules;
and adjusting the temperature of the target optical device from the current temperature to the target temperature through the target temperature control process.
2. The method according to claim 1, wherein the obtaining of the target temperature control procedure corresponding to the target temperature range in which the current temperature of the target optical device falls within the plurality of temperature ranges comprises:
determining the target temperature range within which the current temperature falls among the plurality of temperature ranges, wherein the plurality of temperature ranges includes: less than the reference temperature, greater than the target temperature, and greater than or equal to the reference temperature and less than the target temperature;
and acquiring a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow with the corresponding relation as the target temperature control flow.
3. The method according to claim 2, wherein the obtaining a temperature control process corresponding to the target temperature range from the temperature range and the temperature control process having the corresponding relationship as the target temperature control process comprises:
under the condition that the target temperature range is smaller than the reference temperature, determining that the target temperature control process comprises controlling a first heating module in the plurality of temperature control modules to start heating; under the condition that the current temperature is heated to be greater than or equal to the reference temperature and less than the target temperature, controlling the first heating module to stop heating, and controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is higher than that of the first heating module;
under the condition that the target temperature range is larger than the target temperature, determining the target temperature control process comprises controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature is reduced to the target temperature;
and under the condition that the target temperature range is greater than or equal to the reference temperature and less than the target temperature, determining that the target temperature control process comprises controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is the temperature control module with the highest temperature control precision in the plurality of temperature control modules.
4. An apparatus for controlling temperature of an optical device, comprising: a processor, a plurality of temperature control modules and an optical device mounting slot, wherein,
the plurality of temperature control modules are respectively contacted with the optical device mounting groove, and the processor is respectively connected with the plurality of temperature control modules;
the processor is configured to obtain a target temperature for fundamental frequency optical frequency conversion and a reference temperature corresponding to the target temperature, where the target temperature is a working temperature of a target optical device mounted in the optical device mounting groove in a process of achieving the fundamental frequency optical frequency conversion, and the reference temperature is less than the target temperature; acquiring a target temperature control flow corresponding to a target temperature range in which the current temperature of the target optical device falls in a plurality of temperature ranges, wherein the plurality of temperature ranges are constructed by using the target temperature and the reference temperature; controlling the plurality of temperature control modules through the target temperature control process;
and the temperature control modules are used for responding to the control of the processor and adjusting the temperature of the target optical device from the current temperature to the target temperature.
5. The apparatus of claim 4, wherein the processor is further configured to:
determining the target temperature range within which the current temperature falls among the plurality of temperature ranges, wherein the plurality of temperature ranges includes: less than the reference temperature, greater than the target temperature, and greater than or equal to the reference temperature and less than the target temperature;
and acquiring a temperature control flow corresponding to the target temperature range from the temperature range and the temperature control flow with the corresponding relation as the target temperature control flow.
6. The apparatus of claim 5, wherein the plurality of temperature control modules comprises: a first heating module, a second heating module, and a refrigeration module, wherein the processor is further configured to:
under the condition that the target temperature range is smaller than the reference temperature, determining that the target temperature control process comprises controlling a first heating module in the plurality of temperature control modules to start heating; under the condition that the current temperature is heated to be greater than or equal to the reference temperature and less than the target temperature, controlling the first heating module to stop heating, and controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is higher than that of the first heating module;
under the condition that the target temperature range is larger than the target temperature, determining the target temperature control process comprises controlling a refrigeration module in the plurality of temperature control modules to start refrigeration until the current temperature is reduced to the target temperature;
and under the condition that the target temperature range is greater than or equal to the reference temperature and less than the target temperature, determining that the target temperature control process comprises controlling a second heating module in the plurality of temperature control modules to start heating until the current temperature is heated to the target temperature, wherein the temperature control precision of the second heating module is the temperature control module with the highest temperature control precision in the plurality of temperature control modules.
7. The apparatus of claim 6, wherein the temperature control device comprises: the heating device comprises a heating element and a semiconductor refrigerator, wherein the heating element comprises the first heating module, and the semiconductor refrigerator comprises the second heating module and the refrigerating module.
8. An apparatus for controlling temperature of an optical device, comprising:
the first acquisition module is used for acquiring a target temperature of fundamental frequency light frequency conversion and a reference temperature corresponding to the target temperature, wherein the target temperature is a working temperature of a target optical device in a process of realizing the fundamental frequency light frequency conversion, and the reference temperature is less than the target temperature;
a second obtaining module, configured to obtain a target temperature control procedure corresponding to a target temperature range in which a current temperature of the target optical device falls within a plurality of temperature ranges, where the plurality of temperature ranges are constructed using the target temperature and the reference temperature, and the target temperature control procedure is used to instruct a control process on a plurality of temperature control modules;
and the adjusting module is used for adjusting the temperature of the target optical device from the current temperature to the target temperature through the target temperature control process.
9. A computer-readable storage medium, in which a computer program is stored, which computer program, when being executed by a processor, carries out the steps of the method of any one of claims 1 to 3.
10. An electronic device comprising a memory, a processor and a computer program stored on the memory and executable on the processor, characterized in that the steps of the method as claimed in any of claims 1 to 3 are implemented when the computer program is executed by the processor.
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Cited By (1)
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