CN211315848U - Multi-channel light output device and light source module - Google Patents
Multi-channel light output device and light source module Download PDFInfo
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- CN211315848U CN211315848U CN201922131964.0U CN201922131964U CN211315848U CN 211315848 U CN211315848 U CN 211315848U CN 201922131964 U CN201922131964 U CN 201922131964U CN 211315848 U CN211315848 U CN 211315848U
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Abstract
A multi-channel light output device, comprising: the control module stores a plurality of dimming parameters which are not erased when the power is cut off, and respectively generates a plurality of dimming control signals according to the plurality of dimming parameters, wherein each dimming parameter comprises a phase set value, a power set value and a wavelength set value. Each light source module comprises a dimming circuit, a current signal generator and a laser; the dimming circuit receives the corresponding dimming control signal and generates a voltage signal with a plurality of dimming voltages, the plurality of dimming voltages are used for indicating corresponding dimming parameters, the current signal generator is electrically connected with the dimming circuit to receive the voltage signal and convert the voltage signal into a current signal, the current signal has a plurality of dimming currents respectively corresponding to the dimming voltages, and the laser is electrically connected with the current signal generator to receive the current signal and generates an optical signal according to the dimming parameters indicated by the current signal.
Description
Technical Field
The utility model relates to a light source produces the device, especially relates to a multichannel light output device and light source module.
Background
The existing light source generating devices are single-channel light source equipment, and the defect that in the actual product testing process, a plurality of fixed-point single-channel light source equipment are often needed to be used simultaneously to meet the requirements of a testing environment is caused. Many single channel light source equipment use simultaneously, can occupy a large amount of test spaces, and equipment operation is loaded down with trivial details relatively, increases the test cost, and how to solve the produced above-mentioned problem of single channel light source equipment is future research direction.
Disclosure of Invention
An object of the utility model is to provide a solve the multichannel light output device of above-mentioned problem.
The utility model discloses multichannel light output device contains a control module group and a plurality of light source module.
The control module stores a plurality of dimming parameters which are not erased when the power is cut off, and respectively generates a plurality of dimming control signals according to the plurality of dimming parameters, wherein each dimming parameter comprises a phase set value, a power set value and a wavelength set value.
The plurality of light source modules are respectively and electrically connected with the control module to respectively receive the corresponding dimming control signals, and each light source module comprises a dimming circuit, a current signal generator and a laser.
The dimming circuit receives the corresponding dimming control signal and generates a voltage signal with a plurality of dimming voltages, the plurality of dimming voltages are used for indicating the corresponding dimming parameters, the current signal generator is electrically connected with the dimming circuit to receive the voltage signal and convert the voltage signal into a current signal, and the current signal is provided with a plurality of dimming currents respectively corresponding to the dimming voltages.
The laser is electrically connected to the current signal generator to receive the current signal, and generates an optical signal according to the dimming parameter indicated by the current signal.
Preferably, the multi-channel light output device further comprises a power module electrically connected to the control module and each light source module for supplying power to the control module and each light source module.
Preferably, the dimming parameter of the multi-channel light output device includes a wavelength setting value, the dimming circuit includes a feedback unit, a micro control unit, and an output interface unit, the feedback unit is electrically connected to the laser to receive a feedback signal indicating a feedback information output by the laser, the feedback information includes a power value and a wavelength value related to the light signal, the feedback unit converts the format of the feedback signal into a digital signal having the feedback information, the micro control unit is electrically connected to the feedback unit to receive the digital signal and generate a dimming signal according to the feedback information, and the output interface is electrically connected to the micro control unit to receive the dimming signal and generate the voltage signal according to the feedback information.
Preferably, the current signal generator includes a power control unit electrically connected to the dimming circuit for receiving the dimming voltage indicating the power setting value and generating the corresponding dimming current for controlling the power of the laser generating the optical signal.
Preferably, the dimming parameter includes a phase setting value, and the current signal generator includes a phase control unit electrically connected to the dimming circuit to receive the dimming voltage indicating a phase and to generate the corresponding dimming current for controlling the phase of the light signal generated by the laser.
Preferably, the laser includes a power detector for detecting the power of the optical signal of the laser to generate a corresponding power detection signal, and a phase detector for detecting the phase of the optical signal of the laser to generate a phase detection signal, wherein the laser uses the power detection signal and the phase detection signal as a feedback signal.
The utility model discloses a profitable effect lies in: the power failure memory function is provided and the space occupancy rate is low.
Drawings
FIG. 1 is an external view of the multi-channel light output device of the present invention;
FIG. 2 is a circuit diagram of the embodiment;
fig. 3 is a circuit diagram of the power module according to the embodiment.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and examples.
Before the present invention is described in detail, it should be noted that in the following description, similar components are denoted by the same reference numerals.
Referring to fig. 1 and 2, an embodiment of the multi-channel light output device of the present invention includes a power module 1, an input keyboard 2, a display screen 3, a control module 4, a communication interface 5, a plurality of light source modules 6 and a plurality of light source output ports 7. In this embodiment, 4 light source modules are taken as an example for illustration, that is, the external dimension of the 4-channel adjustable light source is only 258mm × 102mm × 302mm, which is equivalent to the size of 1 single-channel light source, so that only from the external view, 3/4 of the occupied space volume of four single-channel light source devices is saved, the occupied space cost is greatly saved, and meanwhile, convenience is brought to the wiring of the working environment.
The power module 1 is electrically connected to the control module 4, the display screen 3, and each light source module 6 for supplying power to the control module 4, the display screen 3, and each light source module 6. In this embodiment, the power module 1 is a Low-dropout regulator (LDO) for converting an input voltage of 110V to 220V into a stable dc voltage, and outputting the dc voltage to the control module 4, the display 3, and each light source module 6.
The communication interface 5 is electrically connected to the control module 4, and is used to transmit an external input from a remote/main control computer to the control module 4, so as to establish an interactive communication between an operator of a remote server/main control computer and the control module 4.
The input keyboard 2 is electrically connected to the control module 4, and is configured to generate an external input indicating the dimming parameter and transmit the external input to the control module 4, so as to provide an interactive communication between an operator on site and the control module 4, as shown in fig. 1, the input keyboard 2 includes a frequency/wavelength frequency setting key 2b, a power setting key 2c, an optical power output enabling key 2d, and a parameter setting group key 2 e. The input keyboard 2 is simple and convenient to operate, parameter configuration of four channel light sources can be completed through a plurality of keys, light signals are output according to set frequency and power of the keys, requirements on operators in use are low, and training cost of the operators is reduced. The display screen 3 is used for displaying information such as light source states, setting parameters and the like.
The control module 4 stores a plurality of dimming parameters that are not erased when the power is off, and generates a plurality of dimming control signals according to the plurality of dimming parameters, wherein each dimming parameter includes a phase setting value, a power setting value and a wavelength setting value. The phase setting is used to simultaneously adjust the frequency/phase of an optical signal from the light source output port 7. The control module 4 includes a microprocessor 41, an interface circuit 42 electrically connected to the microprocessor 41, and a power-off non-volatile memory (not shown) electrically connected to the microprocessor 42. The memory may be externally connected to the microprocessor 41, or may be built in the microprocessor 41. Therefore, the multi-channel light output device is started again after power failure, the dimming parameters stored in the power failure non-erasing memory before power failure are called, the multi-channel light output device keeps outputting the previous frequency and power, the four light source modules do not need to be reset, and particularly as the number of the light source modules is increased, the power failure memory can increase the convenience in operation and reduce the time cost.
The microprocessor 41 receives the dimming parameter, stores the dimming parameter in the non-erasable memory, and generates the dimming control signal according to the dimming parameter.
The interface circuit 42 receives an external input indicating the dimming parameter, converts the format of the external input into a signal readable by the microprocessor 41, and transmits the signal to the microprocessor 41, and transmits the control signal generated by the microprocessor 41 to the corresponding light source module 6. The control module 4, which may also be referred to as a control board, serves as a core unit for receiving input information and transmitting data to the light source module 6 via the microprocessor 41 and the interface circuit 42, thereby completing the configuration operation.
The plurality of light source modules 6 are electrically connected to the control module 4 respectively for receiving the corresponding dimming control signals respectively. That is to say, the four light source modules 6 are relatively independent and can work independently, and the parameter configuration of the light source is completed according to the data transmitted by the control module 4, and the frequency and the power of the output light signal are adjusted. Replace current single channel light source equipment with four light source module 4, concentrate the power supply by a power module 1, compare in single channel light source equipment test operation environment and build and compare, the use equipment reduces, and the wiring is simple and convenient, more does benefit to the maintenance of equipment and operational environment, and its hardware cost is far less than many single channel light source equipment to the realization integrates with low-cost target.
Referring to fig. 3, each light source module 6 includes a dimming circuit 61, a current signal generator 62, and a laser 63.
The dimming circuit 61 receives the dimming control signal and generates a voltage signal having a plurality of dimming voltages indicating the corresponding dimming parameters. The dimming circuit 61 includes a feedback unit FB, a micro control unit MCU, an input interface unit IN, and an output interface unit OUT.
The feedback unit FB is electrically connected to the laser 63 to receive a feedback signal indicating a feedback information output by the laser 63, the feedback information including a power value and a wavelength value related to the optical signal, and format-converts the format of the feedback signal into a digital signal having the feedback information, and the feedback unit FB is an analog-to-digital converter for performing analog-to-digital conversion on the feedback signal.
The MCU is electrically connected with the feedback unit FB to receive the digital signal and generate a dimming signal according to the feedback information.
The input interface unit IN is electrically connected between the interface circuit 42 of the control module 4 and the MCU, and establishes interactive communication between the interface circuit 42 and the MCU.
The output interface OUT is electrically connected with the MCU to receive the dimming signal and generate the voltage signal according to the feedback information. The output interface unit OUT is a digital-to-analog converter for performing digital-to-analog conversion on the dimming signal.
The current signal generator 62 is electrically connected to the dimming circuit 61 to receive the voltage signal and convert the voltage signal into a current signal, where the current signal has a plurality of dimming currents respectively corresponding to the dimming voltages. The current signal generator 62 includes a temperature controller TEC, a power control unit SOA, a phase control unit 9, and a gain control unit gain.
The temperature controller TEC is electrically connected to the dimming circuit 61 to receive the dimming voltage indicating the temperature setting value and accordingly generate the corresponding dimming current to control the temperature of the laser 63 to be constant at 27.5 degrees celsius, so as to ensure stable operation of the laser 63.
The power control unit SOA is electrically connected to the dimming circuit 61 to receive the dimming voltage indicating the power setting value and accordingly generate the corresponding dimming current for controlling the power generated by the laser 63 to generate the optical signal.
The phase control unit 9 is electrically connected to the dimming circuit 61 to receive the dimming voltage indicating a phase/frequency and accordingly generate the corresponding dimming current for controlling the phase/frequency of the generated optical signal generated by the laser 63. When the phase control unit 9 adjusts the phase of the optical signal, the frequency is also adjusted, and further described herein, the phase control unit 9 includes a phase fine adjuster phase, a first phase coarse adjuster left, and a second phase coarse adjuster right, and the method of this embodiment is as follows: the first coarse phase adjuster left and the second coarse phase adjuster right are used for the coarse adjustment part of the phase, and the fine phase adjuster phase is used for the fine adjustment part of the phase, that is, the output current of the fine phase adjuster phase is adjusted to a predetermined position (such as a middle value) and the output currents of the coarse phase adjuster left and the second coarse phase adjuster right are adjusted to an approximate frequency position of the optical signal output by the laser 63, and then the output current of the fine phase adjuster phase is used for fine adjusting the optical signal to an accurate frequency position. The dimming current is a combination of the output currents of the phase trimmer phase, the first coarse phase trimmer left, and the second coarse phase trimmer right.
The gain control unit gain is electrically connected to the dimming circuit 61 for receiving the dimming voltage indicating a gain and generating the corresponding dimming current for controlling the gain of the laser 63 for generating the optical signal.
The laser 63 is electrically connected to the current signal generator 62 to receive the current signal, and generates an optical signal according to the dimming parameter indicated by the current signal.
The laser 63 includes a power detector REFPD and a phase detector EPD. The power detector PD is used to detect the power of the optical signal of the laser 63, and generate a corresponding power detection signal. The phase detector EPD is used to detect the phase of the optical signal of the laser 63 to generate a phase detection signal, and the laser 63 uses the power detection signal and the phase detection signal as a feedback signal.
The four light source output ports 7 are respectively connected to the four light source modules 6 for outputting the four independently regulated optical signals, that is, an operator butt joints the optical fiber connector with the light source output ports to realize the output of the light source.
The communication interface 5 is used for connecting a master control computer PC and the control module 4, and the master control computer PC is used for controlling optical signals of the four-channel light source module 6. Further explanation is as follows: the communication specification of the communication interface 5 may be any one of interfaces GPIB, RS232, RS485, USB, Ethernet, and the like. And a network can also be connected with the Ethernet interface by using a network cable to build a network, so that the function of remote control is realized. The connection with the master control computer PC is realized by sharing one communication interface 5 to simultaneously control the four light source modules 6.
In summary, the above embodiment has the following advantages:
1. the multi-channel light output device has a power-down memory function, namely, the multi-channel light output device is restarted after being powered off, dimming parameters stored in a power-off non-erasing memory before being powered off are called, so that the multi-channel light output device keeps outputting previous frequency and power, and four light source modules are not required to be reset.
2. Compared with the existing four single-channel light source devices which need four power supplies, the present embodiment uses one power module 1 to supply power for four independent light source modules and one control module, thereby simplifying hardware and reducing cost.
3. The space occupancy is low, compares in the space that four present single channel light source equipment occupy and its wiring, and the multichannel light output device's of this embodiment apparent dimension is 1/4 of four single channel light source equipment occupation space volumes only to practiced thrift test space, effectively reduced the place space cost.
4. The communication protocol of the communication interface 5 is uniform, so that only one communication cable is needed, and data interactive communication with the main control computer equipment PC is completed through a set of specific communication protocol, so that the functions of setting and inquiring parameters of the light source, uploading data, analyzing data and the like are realized. Compared with the existing four independent single-channel light source devices, four communication cables are required to be respectively connected with the four independent single-channel light source devices, when the four devices are different in model, the communication protocols are possibly different, so that the master control computer PC has to compile a plurality of protocols to communicate with the master control computer PC, the cost of the communication cables is increased, more importantly, the programming difficulty and cost increase of the master control computer PC are increased, and higher requirements are provided for software developers. Therefore, the purpose of the utility model can be achieved.
The above description is only a preferred embodiment of the present invention, and the scope of the present invention should not be limited thereby, but the present invention is within the scope of the present invention by simply equivalent changes and modifications with reference to the claims and the description of the present invention.
Claims (10)
1. A multi-channel light output device, the multi-channel light output device comprising:
the control module stores a plurality of dimming parameters which are not erased when the power is cut off, and respectively generates a plurality of dimming control signals according to the plurality of dimming parameters, wherein each dimming parameter comprises a power set value;
the light source modules are respectively and electrically connected with the control module to respectively receive the corresponding dimming control signals, and each light source module comprises a dimming circuit, a current signal generator and a laser;
the dimming circuit receives the corresponding dimming control signal and generates a voltage signal with a plurality of dimming voltages, the plurality of dimming voltages are used for indicating the corresponding dimming parameters,
the current signal generator is electrically connected with the dimming circuit to receive the voltage signal and convert the voltage signal into a current signal, the current signal is provided with a plurality of dimming currents respectively corresponding to the dimming voltages,
the laser is electrically connected with the current signal generator to receive the current signal so as to generate an optical signal according to the dimming parameter indicated by the current signal.
2. The multi-channel light output device of claim 1, further comprising a power module electrically connected to the control module and each light source module for supplying power to the control module and each light source module.
3. The multi-channel light output device of claim 1, wherein the dimming parameter comprises a wavelength setting, the dimming circuit comprises a feedback unit, a micro-control unit, and an output interface unit,
the feedback unit is electrically connected with the laser to receive a feedback signal which indicates feedback information and is output by the laser, the feedback information comprises a power value and a wavelength value related to the optical signal, the format of the feedback signal is converted into a digital signal with the feedback information by the feedback unit,
the micro control unit is electrically connected with the feedback unit to receive the digital signal and generate a dimming signal according to the feedback information,
the output interface is electrically connected with the micro control unit to receive the dimming signal and generate the voltage signal according to the feedback information.
4. The multi-channel light output device of claim 1, wherein the current signal generator comprises a power control unit electrically connected to the dimming circuit for receiving the dimming voltage indicative of the power setting value and for generating the corresponding dimming current for controlling the power generated by the laser for generating the light signal.
5. The multi-channel light output device of claim 1, wherein the dimming parameter comprises a phase setting value, and the current signal generator comprises a phase control unit electrically connected to the dimming circuit for receiving the dimming voltage indicative of a phase and for generating the corresponding dimming current for controlling the phase of the generated light signal generated by the laser.
6. A multi-channel light output device as claimed in claim 1, characterized in that: the laser includes a power detector, and a phase detector,
the power detector is used for detecting the power of the optical signal of the laser to generate a corresponding power detection signal,
the phase detector is used for detecting the phase of the optical signal of the laser to generate a phase detection signal,
the laser uses the power detection signal and the phase detection signal as a feedback signal.
7. A light source module, comprising:
a dimming circuit for receiving a dimming control signal having a dimming parameter to generate a voltage signal having a plurality of dimming voltages, wherein the dimming parameter includes a power setting value, and the dimming voltages are used for indicating the corresponding dimming parameters;
a current signal generator electrically connected to the dimming circuit for receiving the voltage signal and converting the voltage signal into a current signal, wherein the current signal has a plurality of dimming currents respectively corresponding to the dimming voltages; and
a laser electrically connected to the current signal generator for receiving the current signal and generating an optical signal according to the dimming parameter indicated by the current signal.
8. The light source module as claimed in claim 7, wherein the dimming parameter comprises a wavelength setting value, the dimming circuit comprises a feedback unit, a micro control unit, and an output interface unit,
the feedback unit is electrically connected with the laser to receive a feedback signal which indicates feedback information and is output by the laser, the feedback information comprises a power value and a wavelength value related to an optical signal, the format of the feedback signal is converted into a digital signal with the feedback information by the feedback unit,
the micro control unit is electrically connected with the feedback unit to receive the digital signal and generate a dimming signal according to the feedback information,
the output interface is electrically connected with the micro control unit to receive the dimming signal and generate the voltage signal according to the feedback information.
9. The light source module as set forth in claim 7, wherein: the current signal generator comprises a power control unit, wherein the power control unit is electrically connected with the dimming circuit to receive the dimming voltage indicating the power set value and accordingly generate the corresponding dimming current to control the power generated by the laser to generate the optical signal.
10. The light source module as set forth in claim 7, wherein: the laser includes a power detector, and a phase detector,
the power detector is used for detecting the power of the optical signal of the laser to generate a corresponding power detection signal,
the phase detector is used for detecting the phase of the optical signal of the laser to generate a phase detection signal,
the laser uses the power detection signal and the phase detection signal as a feedback signal.
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| Application Number | Priority Date | Filing Date | Title |
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| CN201922131964.0U CN211315848U (en) | 2019-12-02 | 2019-12-02 | Multi-channel light output device and light source module |
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| CN201922131964.0U CN211315848U (en) | 2019-12-02 | 2019-12-02 | Multi-channel light output device and light source module |
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Address after: 430223 Great Wall Innovation Science and Technology Park, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee after: Jiepu Technology (Wuhan) Co.,Ltd. Country or region after: China Address before: 430223 No.2 workshop, 1-3 floors, building 1, Wuhan AoXin Technology Co., Ltd., changchangyuan Road, Donghu New Technology Development Zone, Wuhan City, Hubei Province Patentee before: Wuhan Aoxin Technology Co.,Ltd. Country or region before: China |